Ammerhai/Mikemon
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Mikemon/src/main.cpp

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#include <stdio.h>
#include <stdint.h>
#include <bit>
#include <SDL3/SDL.h>
#include <SDL3_mixer/SDL_mixer.h>
#include <imgui.h>
#include <imgui_internal.h>
#include <imgui_impl_sdl3.h>
#include <imgui_impl_wgpu.h>
#include <tracy/Tracy.hpp>
#include <tracy/TracyC.h>
#include <webgpu/webgpu.h>
#include "defer.h"
#include "log.h"
#include "math_graphics.h"
#include "stb_image.h"
#include "shaders/shaders.h"
using namespace M;
#define ASSETS_PATH "../assets/"
#define NEAR_PLANE (0.01f)
#define TILE_SIZE (32)
static SDL_Window *window;
static bool wgpu_init_done;
static WGPUInstance instance;
static WGPUDevice device;
static WGPUQueue queue;
static WGPUSurface surface;
static WGPUTexture framebuffer;
static WGPURenderPipeline basic_render_pipeline;
static WGPURenderPipeline world_render_pipeline;
static WGPURenderPipeline grid_render_pipeline;
static WGPUSampler pixel_sampler;
static WGPUBindGroup per_frame_bind_group;
static WGPUBindGroup world_bind_group;
static WGPUBindGroup basic_bind_group;
static WGPUTexture tile_textures_array;
static WGPUTextureView tile_textures_array_view;
static WGPUTextureView *tile_textures_array_view_individual;
static WGPUBuffer view_projection_matrix_buffer;
static WGPUBuffer per_frame_buffer;
static WGPUBuffer tint_color_buffer;
static WGPUBuffer vertex_buffer;
static WGPUBuffer index_buffer;
static WGPUBuffer grid_vertex_buffer;
static WGPUBuffer grid_index_buffer;
static WGPUBuffer player_instance_buffer;
static WGPUBuffer tile_infos_buffer;
static Sint32 window_width;
static Sint32 window_height;
static Mix_Music *music_setting_off_piano;
static float volume_master = 100.0f;
static float volume_music = 100.0f;
static float volume_sfx = 100.0f;
static bool Running = true;
static float camera_fovy_degrees = 31.0f;
static float camera_tilt = 25.5f;
static float camera_distance = 13.5f;
static M4x4 view_matrix;
static M4x4 inverse_view_matrix;
static M4x4 projection_matrix;
static M4x4 inverse_projection_matrix;
static SDL_Time time;
static bool use_actual_time = true;
static SDL_DateTime calendar_time;
static V2 mouse_pos;
#define MAX_TINT_TIMES 32
static int num_used_tint_times = 4;
static int time_tints_times[MAX_TINT_TIMES][3] = {
{ 4, 0, 0 },
{ 9, 0, 0 },
{ 19, 0, 0 },
{ 21, 0, 0 },
};
static V3 time_tints[MAX_TINT_TIMES] = {
V3_(0.314f, 0.369f, 0.455f),
V3_(1.0f, 0.891f, 0.868f),
V3_(1.0f, 0.465f, 0.373f),
V3_(0.314f, 0.369f, 0.455f),
};
enum Settings_Category {
SETTINGS_UNKNOWN,
SETTINGS_AUDIO,
};
struct Vertex {
V3 pos;
V2 uv;
};
static Vertex vertices[] = {
{{ -0.5f, 0.5f }, { 0.0f, 0.0f }},
{{ -0.5f, -0.5f }, { 0.0f, 1.0f }},
{{ 0.5f, -0.5f }, { 1.0f, 1.0f }},
{{ 0.5f, 0.5f }, { 1.0f, 0.0f }},
};
static Uint16 indices[] = {
0, 1, 2,
0, 2, 3,
};
#define grid_line_size (1.0f / 64.0f)
static Vertex grid_vertices[] = {
// LEFT
{{ -0.5f, 0.5f }},
{{ -0.5f, -0.5f + grid_line_size }},
{{ -0.5f + grid_line_size, -0.5f + grid_line_size }},
{{ -0.5f + grid_line_size, 0.5f }},
// TOP
{{ -0.5f + grid_line_size, 0.5f }},
{{ -0.5f + grid_line_size, 0.5f - grid_line_size }},
{{ 0.5f, 0.5f - grid_line_size }},
{{ 0.5f, 0.5f }},
// RIGHT
{{ 0.5f - grid_line_size, 0.5f - grid_line_size }},
{{ 0.5f - grid_line_size, -0.5f }},
{{ 0.5f, -0.5f }},
{{ 0.5f, 0.5f - grid_line_size }},
// BOTTOM
{{ -0.5f, -0.5f + grid_line_size }},
{{ -0.5f, -0.5f }},
{{ 0.5f - grid_line_size, -0.5f }},
{{ 0.5f - grid_line_size, -0.5f + grid_line_size }},
};
static Uint16 grid_indices[] = {
// LEFT
0, 1, 2,
0, 2, 3,
// TOP
4, 5, 6,
4, 6, 7,
// RIGHT
8, 9, 10,
8, 10, 11,
// BOTTOM
12, 13, 14,
12, 14, 15,
};
struct Instance {
V2 pos;
};
static Instance player_instance = {{ 0.0f, 0.0f }};
struct Map {
Sint32 width;
Sint32 height;
Uint32 *tiles;
char *name;
WGPUBuffer gpu_buffer;
};
static Map current_map;
struct Player {
Sint32 pos_x;
Sint32 pos_y;
};
static Player player;
typedef struct Sint32x2 {
Sint32 x;
Sint32 y;
} Sint32x2;
struct PerFrame {
Sint32x2 drag_start;
Sint32x2 mouse;
V2 grid_offset;
Sint32 grid_width;
Sint32 map_width;
};
static PerFrame per_frame = {};
typedef enum : Uint8 {
TILEKIND_ERROR = 0,
TILEKIND_NONE = 1,
TILEKIND_GRASS = 2,
TILEKIND_GROUND = 3,
TILEKIND_WATER = 4,
} TileKind;
#define TILE_CORNER_INFO(top_left, top_right, bottom_right, bottom_left) (((top_left) << 24) | ((top_right) << 16) | ((bottom_right) << 8) | bottom_left)
typedef struct {
Uint16 type;
const char *asset_path;
Uint32 corner_info;
} TileInfo;
static TileInfo tile_infos[] = {
{ 0x0001, "tiles/error.png", TILE_CORNER_INFO(TILEKIND_ERROR, TILEKIND_ERROR, TILEKIND_ERROR, TILEKIND_ERROR ) },
{ 0x0000, "tiles/empty.png", TILE_CORNER_INFO(TILEKIND_NONE, TILEKIND_NONE, TILEKIND_NONE, TILEKIND_NONE ) },
{ 0x0102, "tiles/grass_3.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0100, "tiles/grass_1.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0101, "tiles/grass_2.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0103, "tiles/grass_4.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0202, "tiles/ground_3.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GROUND ) },
{ 0x0200, "tiles/ground_1.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GROUND ) },
{ 0x0201, "tiles/ground_2.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GROUND ) },
{ 0x0300, "tiles/water_1.png", TILE_CORNER_INFO(TILEKIND_WATER, TILEKIND_WATER, TILEKIND_WATER, TILEKIND_WATER ) },
{ 0x0301, "tiles/water_2.png", TILE_CORNER_INFO(TILEKIND_WATER, TILEKIND_WATER, TILEKIND_WATER, TILEKIND_WATER ) },
{ 0x0400, "tiles/grass_ground_1.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0401, "tiles/grass_ground_2.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0402, "tiles/grass_ground_3.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0410, "tiles/grass_ground_outer_corner.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GROUND ) },
{ 0x0411, "tiles/grass_ground_outer_corner_2.png", TILE_CORNER_INFO(TILEKIND_GROUND, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GROUND ) },
{ 0x0420, "tiles/grass_ground_inner_corner.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0421, "tiles/grass_ground_inner_corner_2.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0422, "tiles/grass_ground_inner_corner_3.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GRASS ) },
{ 0x0423, "tiles/grass_ground_two_corner.png", TILE_CORNER_INFO(TILEKIND_GRASS, TILEKIND_GROUND, TILEKIND_GRASS, TILEKIND_GROUND ) },
};
static V4 cpu_tile_infos_buffer[SDL_arraysize(tile_infos)];
static Sint32 selected_tile_kind = -1;
static Sint32 selected_tile = -1;
static Sint32 selected_rotation = 0;
static bool dragging_tile_change = false;
static V2 drag_start_pos;
static bool update_buffer(WGPUBuffer buffer, Uint32 offset, Uint32 num_bytes, void *data) {
wgpuQueueWriteBuffer(queue, buffer, offset, data, num_bytes);
return true;
}
static WGPUBuffer create_buffer(WGPUBufferUsage usage, Uint32 num_bytes, void *data = NULL, const char *name = NULL) {
WGPUBufferDescriptor descriptor = {
.label = { .data = name, .length = WGPU_STRLEN },
.usage = usage,
.size = num_bytes,
.mappedAtCreation = data != NULL,
};
WGPUBuffer buffer = wgpuDeviceCreateBuffer(device, &descriptor);
if (data) {
void *mapped_data = wgpuBufferGetMappedRange(buffer, 0, num_bytes);
memcpy(mapped_data, data, num_bytes);
wgpuBufferUnmap(buffer);
}
return buffer;
}
static bool save_map(Map map) {
char path[256] = ASSETS_PATH "maps/";
SDL_strlcat(path, map.name, SDL_arraysize(path));
SDL_IOStream *file = SDL_IOFromFile(path, "wb");
if (!file) {
log_error("Failed to open map file for writing.");
return false;
}
defer(SDL_CloseIO(file));
if (!SDL_WriteS32LE(file, map.width)) {
log_error("Failed to write width to map file.");
return false;
}
if (!SDL_WriteS32LE(file, map.height)) {
log_error("Failed to write height to map file.");
return false;
}
for (int i = 0; i < map.width * map.height; i++) {
Uint32 type = tile_infos[map.tiles[i] & 0xffff].type;
Uint32 orientation = map.tiles[i] & 0x30000;
Uint32 to_write = orientation | type;
if (!SDL_WriteU32LE(file, to_write)) {
log_error("Failed to write tile to map file.");
return false;
}
}
if(!SDL_FlushIO(file)) {
log_error("Failed to flush data to map file.");
return false;
};
log("Saved map file.");
return true;
}
static bool load_map(const char *name, Map *result) {
char path[256] = ASSETS_PATH "maps/";
SDL_strlcat(path, name, SDL_arraysize(path));
SDL_IOStream *file = SDL_IOFromFile(path, "rb");
if (!file) {
log_error("Failed to open map file for reading.");
return false;
}
defer(SDL_CloseIO(file));
result->name = SDL_strdup(name);
if (!SDL_ReadS32LE(file, &result->width)) {
log_error("Failed read width from map file.");
return false;
}
if (!SDL_ReadS32LE(file, &result->height)) {
log_error("Failed read height from map file.");
return false;
}
result->tiles = (Uint32*)malloc(result->width * result->height * sizeof(Uint32));
for (int i = 0; i < result->width * result->height; i++) {
Uint32 tile = 0;
if (!SDL_ReadU32LE(file, &tile)) {
free(result->tiles);
return false;
}
Uint32 type = tile & 0xffff;
Uint32 orientation = tile & 0x30000;
Uint32 kind = 0;
for (int i = 0; i < SDL_arraysize(tile_infos); i++) {
if (tile_infos[i].type == type) {
kind = i;
break;
}
}
result->tiles[i] = orientation | kind;
}
char buffer_name[256] = "Map ";
SDL_strlcat(buffer_name, result->name, SDL_arraysize(buffer_name));
result->gpu_buffer = create_buffer(WGPUBufferUsage_Vertex | WGPUBufferUsage_CopyDst, result->width * result->height * 4, result->tiles, buffer_name);
if (!result->gpu_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
log("Loaded map file.");
return true;
}
static void unload_map(Map *map) {
map->width = 0;
map->height = 0;
free(map->tiles);
SDL_free(map->name);
wgpuBufferRelease(map->gpu_buffer);
}
static void change_map_size(Map *map, char direction, int amount) {
WGPUBuffer old_gpu_buffer = map->gpu_buffer;
Uint32 *old_map = map->tiles;
Sint32 old_map_width = map->width;
Sint32 old_map_height = map->height;
Sint32 new_x_offset = 0;
Sint32 new_y_offset = 0;
Sint32 old_x_offset = 0;
Sint32 old_y_offset = 0;
Sint32 to_fill_width = map->width;
Sint32 to_fill_height = map->height;
Sint32 to_fill_x_offset = 0;
Sint32 to_fill_y_offset = 0;
if (direction == 'W') {
player.pos_x = player.pos_x + amount;
map->width += amount;
to_fill_width = amount;
if (amount < 0)
old_x_offset = -amount;
else
new_x_offset = amount;
}
if (direction == 'N') {
player.pos_y = player.pos_y + amount;
map->height += amount;
to_fill_height = amount;
if (amount < 0)
old_y_offset = -amount;
else
new_y_offset = amount;
}
if (direction == 'E') {
map->width += amount;
to_fill_width = amount;
to_fill_x_offset = old_map_width;
}
if (direction == 'S') {
map->height += amount;
to_fill_height = amount;
to_fill_y_offset = old_map_height;
}
map->tiles = (Uint32*)malloc(map->width * map->height * sizeof(Uint32));
for (int y = 0; y < min(old_map_height, map->height); y++) {
for (int x = 0; x < min(old_map_width, map->width); x++) {
map->tiles[(y + new_y_offset) * map->width + (x + new_x_offset)] = old_map[(y + old_y_offset) * old_map_width + (x + old_x_offset)];
}
}
for (int y = 0; y < to_fill_height; y++) {
for (int x = 0; x < to_fill_width; x++) {
map->tiles[(y + to_fill_y_offset) * map->width + (x + to_fill_x_offset)] = 1;
}
}
player.pos_x = clamp(0, player.pos_x, map->width - 1);
player.pos_y = clamp(0, player.pos_y, map->height - 1);
map->gpu_buffer = create_buffer(WGPUBufferUsage_Vertex, map->width * map->height * 4, map->tiles, "world_buffer");
if (!map->gpu_buffer) {
log_error("Failed to create buffer. Exiting.");
exit(1);
}
free(old_map);
wgpuBufferRelease(old_gpu_buffer);
}
static WGPUTexture create_shader_texture(const char *name, const char *data, uint32_t width, uint32_t height, int channels) {
WGPUTextureDescriptor descriptor = {
.label = { .data = name, .length = WGPU_STRLEN },
.usage = WGPUTextureUsage_TextureBinding | WGPUTextureUsage_CopyDst,
.dimension = WGPUTextureDimension_2D,
.size = { .width = width, .height = height, .depthOrArrayLayers = 1 },
.format = channels == 4 ? WGPUTextureFormat_RGBA8UnormSrgb : WGPUTextureFormat_R8Unorm,
.mipLevelCount = 1,
.sampleCount = 1,
.viewFormatCount = 0,
.viewFormats = NULL,
};
WGPUTexture texture = wgpuDeviceCreateTexture(device, &descriptor);
if (!texture) {
log_error("Failed to create texture.");
return NULL;
}
if (data) {
WGPUTexelCopyTextureInfo destination = {
.texture = texture,
.mipLevel = 0,
.origin = { .x = 0, .y = 0, .z = 0 },
.aspect = WGPUTextureAspect_All,
};
WGPUTexelCopyBufferLayout data_layout = {
.offset = 0,
.bytesPerRow = width * channels,
.rowsPerImage = height,
};
WGPUExtent3D extent = {
.width = width,
.height = height,
.depthOrArrayLayers = 1,
};
wgpuQueueWriteTexture(queue, &destination, data, width * height * channels, &data_layout, &extent);
}
return texture;
}
static WGPUTexture create_shader_texture(const char *path) {
char path_to_load[256] = ASSETS_PATH;
SDL_strlcat(path_to_load, path, SDL_arraysize(path_to_load));
int width = 0, height = 0, channels = 0;
stbi_uc *data = stbi_load(path_to_load, &width, &height, &channels, 0);
if (!data) {
log_error("Failed to load texture (\"%s\").", path_to_load);
return NULL;
}
WGPUTexture result = create_shader_texture(path, (char *)data, width, height, channels);
if (!result) {
log_error("Failed to load texture (\"%s\").", path_to_load);
stbi_image_free(data);
return NULL;
}
stbi_image_free(data);
return result;
}
static void blit(char *dst, Sint32 dst_pitch, Sint32 dst_x, Sint32 dst_y, char *src, Sint32 src_pitch, Sint32 width, Sint32 height, int components = 4) {
for (Sint32 y = 0; y < height; y++)
memmove(&dst[((dst_y + y) * dst_pitch + dst_x) * components], &src[y * src_pitch * components], width * components);
}
static bool SelectableTile(const char *label, bool selected, Uint32 tile_index, const ImVec2& image_size, const ImVec2& uv0 = ImVec2(0, 0), const ImVec2& uv1 = ImVec2(1, 1), Uint8 orientation = 0) {
const ImGuiContext *context = ImGui::GetCurrentContext();
const ImVec2 padding = context->Style.FramePadding;
bool pressed = ImGui::Selectable(label, selected, 0, image_size + padding * 2.0f);
ImVec2 min = ImGui::GetItemRectMin();
ImVec2 max = ImGui::GetItemRectMax();
switch (orientation) {
case 0: context->CurrentWindow->DrawList->AddImageQuad((ImTextureID)tile_textures_array_view_individual[tile_index], min + padding, ImVec2(max.x - padding.x, min.y + padding.y), max - padding, ImVec2(min.x + padding.x, max.y - padding.y), ImVec2(uv0.x, uv0.y), ImVec2(uv1.x, uv0.y), ImVec2(uv1.x, uv1.y), ImVec2(uv0.x, uv1.y)); break;
case 1: context->CurrentWindow->DrawList->AddImageQuad((ImTextureID)tile_textures_array_view_individual[tile_index], min + padding, ImVec2(max.x - padding.x, min.y + padding.y), max - padding, ImVec2(min.x + padding.x, max.y - padding.y), ImVec2(uv1.x, uv0.y), ImVec2(uv1.x, uv1.y), ImVec2(uv0.x, uv1.y), ImVec2(uv0.x, uv0.y)); break;
case 2: context->CurrentWindow->DrawList->AddImageQuad((ImTextureID)tile_textures_array_view_individual[tile_index], min + padding, ImVec2(max.x - padding.x, min.y + padding.y), max - padding, ImVec2(min.x + padding.x, max.y - padding.y), ImVec2(uv1.x, uv1.y), ImVec2(uv0.x, uv1.y), ImVec2(uv0.x, uv0.y), ImVec2(uv1.x, uv0.y)); break;
case 3: context->CurrentWindow->DrawList->AddImageQuad((ImTextureID)tile_textures_array_view_individual[tile_index], min + padding, ImVec2(max.x - padding.x, min.y + padding.y), max - padding, ImVec2(min.x + padding.x, max.y - padding.y), ImVec2(uv0.x, uv1.y), ImVec2(uv0.x, uv0.y), ImVec2(uv1.x, uv0.y), ImVec2(uv1.x, uv1.y)); break;
default: SDL_assert_always(false); break;
}
return pressed;
}
static ImVec4 linear_to_sRGB(ImVec4 linear) {
float red = linear.x <= 0.0031308f ? 12.92f * linear.x : 1.055f * powf(linear.x, 1.0f / 2.4f) - 0.055;
float green = linear.y <= 0.0031308f ? 12.92f * linear.y : 1.055f * powf(linear.y, 1.0f / 2.4f) - 0.055;
float blue = linear.z <= 0.0031308f ? 12.92f * linear.z : 1.055f * powf(linear.z, 1.0f / 2.4f) - 0.055;
return ImVec4(red, green, blue, linear.w);
}
static ImVec4 sRGB_to_linear(ImVec4 linear) {
float red = linear.x <= 0.0031308f ? linear.x / 12.92f : powf((linear.x + 0.055) / 1.055, 2.4f);
float green = linear.y <= 0.0031308f ? linear.y / 12.92f : powf((linear.y + 0.055) / 1.055, 2.4f);
float blue = linear.z <= 0.0031308f ? linear.z / 12.92f : powf((linear.z + 0.055) / 1.055, 2.4f);
return ImVec4(red, green, blue, linear.w);
}
static V3 Unproject(V3 screen_pos) {
V4 result = inverse_view_matrix * inverse_projection_matrix * V4_(screen_pos, 1.0f);
result.xyz /= result.w;
return result.xyz;
}
static V2 get_floor_intersection_of_mouse(V2 mouse_pos) {
V2 mouse = remap(V2{ 0, 0 }, V2{ (float)window_width, (float)window_height }, V2{ -1, 1 }, V2{ 1, -1 }, V2{ mouse_pos.x, mouse_pos.y });
V3 camera_position = (inverse_view_matrix * V4_(0, 0, 0, 1)).xyz;
V3 probe = Unproject(V3_(mouse, .5));
V3 ray_dir = normalize(probe - camera_position);
float t = -camera_position.z / ray_dir.z;
V3 floor_intersection = camera_position + (t * ray_dir);
return floor_intersection.xy;
}
#ifdef TRACY_ENABLE
static SDL_malloc_func sdl_malloc = NULL;
static SDL_calloc_func sdl_calloc = NULL;
static SDL_realloc_func sdl_realloc = NULL;
static SDL_free_func sdl_free = NULL;
static void setup_memory_functions() {
SDL_GetMemoryFunctions(&sdl_malloc, &sdl_calloc, &sdl_realloc, &sdl_free);
SDL_SetMemoryFunctions(
[](size_t size) -> void * {
void *result = sdl_malloc(size);
TracyAllocN(result, size, "SDL");
return result;
},
[](size_t nmemb, size_t size) -> void * {
void *result = sdl_calloc(nmemb, size);
TracyAllocN(result, nmemb * size, "SDL");
return result;
},
[](void *mem, size_t size) -> void * {
void *result = sdl_realloc(mem, size);
TracyFreeN(mem, "SDL");
TracyAllocN(result, size, "SDL");
return result;
},
[](void *mem) {
TracyFreeN(mem, "SDL");
sdl_free(mem);
}
);
}
#else
static void setup_memory_functions() {}
#endif
static bool recreate_graphics_pipelines() {
WGPUBlendState blend_state = {
.color = { .operation = WGPUBlendOperation_Add, .srcFactor = WGPUBlendFactor_SrcAlpha, .dstFactor = WGPUBlendFactor_OneMinusSrcAlpha },
.alpha = { .operation = WGPUBlendOperation_Add, .srcFactor = WGPUBlendFactor_SrcAlpha, .dstFactor = WGPUBlendFactor_OneMinusSrcAlpha },
};
WGPUColorTargetState color_target_state = {
.format = WGPUTextureFormat_BGRA8UnormSrgb,
.blend = &blend_state,
.writeMask = WGPUColorWriteMask_All,
};
WGPUBindGroupLayoutEntry frame_data_bind_group_layout_entries[] = {
{
.binding = 0,
.visibility = WGPUShaderStage_Vertex,
.buffer = {
.type = WGPUBufferBindingType_Uniform,
.hasDynamicOffset = false,
.minBindingSize = 0,
},
},
{
.binding = 1,
.visibility = WGPUShaderStage_Vertex,
.buffer = {
.type = WGPUBufferBindingType_Uniform,
.hasDynamicOffset = false,
.minBindingSize = 0,
},
},
};
WGPUBindGroupLayoutDescriptor frame_data_bind_group_layout_descriptor = {
.label = { .data = "frame_data_bind_group_layout", .length = WGPU_STRLEN },
.entryCount = SDL_arraysize(frame_data_bind_group_layout_entries),
.entries = frame_data_bind_group_layout_entries,
};
WGPUBindGroupLayout frame_data_bind_group_layout = wgpuDeviceCreateBindGroupLayout(device, &frame_data_bind_group_layout_descriptor);
{ // basic_render_pipeline
WGPUBindGroupLayoutEntry basic_bind_group_layout_entries[] = {
{
.binding = 0,
.visibility = WGPUShaderStage_Fragment,
.texture = {
.sampleType = WGPUTextureSampleType_Float,
.viewDimension = WGPUTextureViewDimension_2D,
.multisampled = false,
},
},
{
.binding = 1,
.visibility = WGPUShaderStage_Fragment,
.sampler = {
.type = WGPUSamplerBindingType_Filtering,
},
},
{
.binding = 2,
.visibility = WGPUShaderStage_Fragment,
.buffer = {
.type = WGPUBufferBindingType_Uniform,
.hasDynamicOffset = false,
.minBindingSize = 0,
},
},
};
WGPUBindGroupLayoutDescriptor basic_bind_group_layout_descriptor = {
.label = { .data = "basic_bind_group_layout", .length = WGPU_STRLEN },
.entryCount = SDL_arraysize(basic_bind_group_layout_entries),
.entries = basic_bind_group_layout_entries,
};
WGPUBindGroupLayout basic_bind_group_layout = wgpuDeviceCreateBindGroupLayout(device, &basic_bind_group_layout_descriptor);
WGPUBindGroupLayout basic_bind_group_layouts[] = {
frame_data_bind_group_layout,
basic_bind_group_layout,
};
WGPUPipelineLayoutDescriptor basic_pipeline_layout_descriptor = {
.label = { .data = "basic_pipeline_layout", .length = WGPU_STRLEN },
.bindGroupLayoutCount = SDL_arraysize(basic_bind_group_layouts),
.bindGroupLayouts = basic_bind_group_layouts,
};
WGPUPipelineLayout basic_pipeline_layout = wgpuDeviceCreatePipelineLayout(device, &basic_pipeline_layout_descriptor);
WGPUShaderSourceWGSL basic_shader_source = {
.chain = { .next = NULL, .sType = WGPUSType_ShaderSourceWGSL },
.code = { .data = WGSL_basic, .length = WGSL_basic_num_bytes },
};
WGPUShaderModuleDescriptor basic_shader_descriptor = {
.nextInChain = &basic_shader_source.chain,
.label = { .data = "basic_shader module", .length = WGPU_STRLEN },
};
WGPUShaderModule basic_shader = wgpuDeviceCreateShaderModule(device, &basic_shader_descriptor);
WGPUVertexAttribute vertex_buffer_attributes[] = {
{
.format = WGPUVertexFormat_Float32x3,
.offset = offsetof(Vertex, pos),
.shaderLocation = 0,
},
{
.format = WGPUVertexFormat_Float32x2,
.offset = offsetof(Vertex, uv),
.shaderLocation = 1,
},
};
WGPUVertexAttribute instance_buffer_attributes[] = {
{
.format = WGPUVertexFormat_Float32x2,
.offset = offsetof(Instance, pos),
.shaderLocation = 2,
},
};
WGPUVertexBufferLayout vertex_buffer_layouts[] = {
{
.stepMode = WGPUVertexStepMode_Vertex,
.arrayStride = sizeof(Vertex),
.attributeCount = SDL_arraysize(vertex_buffer_attributes),
.attributes = vertex_buffer_attributes,
},
{
.stepMode = WGPUVertexStepMode_Instance,
.arrayStride = sizeof(Instance),
.attributeCount = SDL_arraysize(instance_buffer_attributes),
.attributes = instance_buffer_attributes,
},
};
WGPUFragmentState basic_fragment_state = {
.module = basic_shader,
.entryPoint = { .data = "main_fragment", .length = WGPU_STRLEN },
.constantCount = 0,
.constants = NULL,
.targetCount = 1,
.targets = &color_target_state,
};
WGPURenderPipelineDescriptor basic_render_pipeline_descriptor = {
.label = { .data = "basic_render_pipeline", .length = WGPU_STRLEN },
.layout = basic_pipeline_layout,
.vertex = {
.module = basic_shader,
.entryPoint = { .data = "main_vertex", .length = WGPU_STRLEN },
.constantCount = 0,
.constants = NULL,
.bufferCount = SDL_arraysize(vertex_buffer_layouts),
.buffers = vertex_buffer_layouts,
},
.primitive = {
.topology = WGPUPrimitiveTopology_TriangleList,
.stripIndexFormat = WGPUIndexFormat_Undefined,
.frontFace = WGPUFrontFace_CCW,
.cullMode = WGPUCullMode_Back,
.unclippedDepth = false,
},
.depthStencil = NULL,
.multisample = {
.count = 4,
.mask = ~0u,
.alphaToCoverageEnabled = false,
},
.fragment = &basic_fragment_state,
};
basic_render_pipeline = wgpuDeviceCreateRenderPipeline(device, &basic_render_pipeline_descriptor);
wgpuBindGroupLayoutRelease(basic_bind_group_layout);
wgpuPipelineLayoutRelease(basic_pipeline_layout);
wgpuShaderModuleRelease(basic_shader);
}
{ // world_render_pipeline
WGPUBindGroupLayoutEntry world_bind_group_layout_entries[] = {
{
.binding = 0,
.visibility = WGPUShaderStage_Fragment,
.texture = {
.sampleType = WGPUTextureSampleType_Float,
.viewDimension = WGPUTextureViewDimension_2DArray,
.multisampled = false,
},
},
{
.binding = 1,
.visibility = WGPUShaderStage_Fragment,
.sampler = {
.type = WGPUSamplerBindingType_Filtering,
},
},
{
.binding = 2,
.visibility = WGPUShaderStage_Fragment,
.buffer = {
.type = WGPUBufferBindingType_Uniform,
.hasDynamicOffset = false,
.minBindingSize = 0,
},
},
{
.binding = 3,
.visibility = WGPUShaderStage_Vertex,
.buffer = {
.type = WGPUBufferBindingType_ReadOnlyStorage,
.hasDynamicOffset = false,
.minBindingSize = 0,
},
},
};
WGPUBindGroupLayoutDescriptor world_bind_group_layout_descriptor = {
.label = { .data = "world_bind_group_layout", .length = WGPU_STRLEN },
.entryCount = SDL_arraysize(world_bind_group_layout_entries),
.entries = world_bind_group_layout_entries,
};
WGPUBindGroupLayout world_bind_group_layout = wgpuDeviceCreateBindGroupLayout(device, &world_bind_group_layout_descriptor);
WGPUBindGroupLayout world_bind_group_layouts[] = {
frame_data_bind_group_layout,
world_bind_group_layout,
};
WGPUPipelineLayoutDescriptor world_pipeline_layout_descriptor = {
.label = { .data = "world_pipeline_layout", .length = WGPU_STRLEN },
.bindGroupLayoutCount = SDL_arraysize(world_bind_group_layouts),
.bindGroupLayouts = world_bind_group_layouts,
};
WGPUPipelineLayout world_pipeline_layout = wgpuDeviceCreatePipelineLayout(device, &world_pipeline_layout_descriptor);
WGPUShaderSourceWGSL world_shader_source = {
.chain = { .next = NULL, .sType = WGPUSType_ShaderSourceWGSL },
.code = { .data = WGSL_world, .length = WGSL_world_num_bytes },
};
WGPUShaderModuleDescriptor world_shader_descriptor = {
.nextInChain = &world_shader_source.chain,
.label = { .data = "world_shader module", .length = WGPU_STRLEN },
};
WGPUShaderModule world_shader = wgpuDeviceCreateShaderModule(device, &world_shader_descriptor);
WGPUVertexAttribute vertex_buffer_attributes[] = {
{
.format = WGPUVertexFormat_Float32x3,
.offset = offsetof(Vertex, pos),
.shaderLocation = 0,
},
};
WGPUVertexAttribute instance_buffer_attributes[] = {
{
.format = WGPUVertexFormat_Uint32,
.offset = 0,
.shaderLocation = 1,
},
};
WGPUVertexBufferLayout vertex_buffer_layouts[] = {
{
.stepMode = WGPUVertexStepMode_Vertex,
.arrayStride = sizeof(Vertex),
.attributeCount = SDL_arraysize(vertex_buffer_attributes),
.attributes = vertex_buffer_attributes,
},
{
.stepMode = WGPUVertexStepMode_Instance,
.arrayStride = sizeof(Uint32),
.attributeCount = SDL_arraysize(instance_buffer_attributes),
.attributes = instance_buffer_attributes,
},
};
WGPUFragmentState world_fragment_state = {
.module = world_shader,
.entryPoint = { .data = "main_fragment", .length = WGPU_STRLEN },
.constantCount = 0,
.constants = NULL,
.targetCount = 1,
.targets = &color_target_state,
};
WGPURenderPipelineDescriptor world_render_pipeline_descriptor = {
.label = { .data = "world_render_pipeline", .length = WGPU_STRLEN },
.layout = world_pipeline_layout,
.vertex = {
.module = world_shader,
.entryPoint = { .data = "main_vertex", .length = WGPU_STRLEN },
.constantCount = 0,
.constants = NULL,
.bufferCount = SDL_arraysize(vertex_buffer_layouts),
.buffers = vertex_buffer_layouts,
},
.primitive = {
.topology = WGPUPrimitiveTopology_TriangleList,
.stripIndexFormat = WGPUIndexFormat_Undefined,
.frontFace = WGPUFrontFace_CCW,
.cullMode = WGPUCullMode_Back,
.unclippedDepth = false,
},
.depthStencil = NULL,
.multisample = {
.count = 4,
.mask = ~0u,
.alphaToCoverageEnabled = false,
},
.fragment = &world_fragment_state,
};
world_render_pipeline = wgpuDeviceCreateRenderPipeline(device, &world_render_pipeline_descriptor);
wgpuBindGroupLayoutRelease(world_bind_group_layout);
wgpuPipelineLayoutRelease(world_pipeline_layout);
wgpuShaderModuleRelease(world_shader);
}
{ // grid_render_pipeline
WGPUBindGroupLayout grid_bind_group_layouts[] = {
frame_data_bind_group_layout,
};
WGPUPipelineLayoutDescriptor grid_pipeline_layout_descriptor = {
.label = { .data = "grid_pipeline_layout", .length = WGPU_STRLEN },
.bindGroupLayoutCount = SDL_arraysize(grid_bind_group_layouts),
.bindGroupLayouts = grid_bind_group_layouts,
};
WGPUPipelineLayout grid_pipeline_layout = wgpuDeviceCreatePipelineLayout(device, &grid_pipeline_layout_descriptor);
WGPUShaderSourceWGSL grid_shader_source = {
.chain = { .next = NULL, .sType = WGPUSType_ShaderSourceWGSL },
.code = { .data = WGSL_grid, .length = WGSL_grid_num_bytes },
};
WGPUShaderModuleDescriptor grid_shader_descriptor = {
.nextInChain = &grid_shader_source.chain,
.label = { .data = "grid_shader module", .length = WGPU_STRLEN },
};
WGPUShaderModule grid_shader = wgpuDeviceCreateShaderModule(device, &grid_shader_descriptor);
WGPUVertexAttribute vertex_buffer_attributes[] = {
{
.format = WGPUVertexFormat_Float32x3,
.offset = offsetof(Vertex, pos),
.shaderLocation = 0,
},
};
WGPUVertexAttribute instance_buffer_attributes[] = {
};
WGPUVertexBufferLayout vertex_buffer_layouts[] = {
{
.stepMode = WGPUVertexStepMode_Vertex,
.arrayStride = sizeof(Vertex),
.attributeCount = SDL_arraysize(vertex_buffer_attributes),
.attributes = vertex_buffer_attributes,
},
};
WGPUFragmentState grid_fragment_state = {
.module = grid_shader,
.entryPoint = { .data = "main_fragment", .length = WGPU_STRLEN },
.constantCount = 0,
.constants = NULL,
.targetCount = 1,
.targets = &color_target_state,
};
WGPURenderPipelineDescriptor grid_render_pipeline_descriptor = {
.label = { .data = "grid_render_pipeline", .length = WGPU_STRLEN },
.layout = grid_pipeline_layout,
.vertex = {
.module = grid_shader,
.entryPoint = { .data = "main_vertex", .length = WGPU_STRLEN },
.constantCount = 0,
.constants = NULL,
.bufferCount = SDL_arraysize(vertex_buffer_layouts),
.buffers = vertex_buffer_layouts,
},
.primitive = {
.topology = WGPUPrimitiveTopology_TriangleList,
.stripIndexFormat = WGPUIndexFormat_Undefined,
.frontFace = WGPUFrontFace_CCW,
.cullMode = WGPUCullMode_Back,
.unclippedDepth = false,
},
.depthStencil = NULL,
.multisample = {
.count = 4,
.mask = ~0u,
.alphaToCoverageEnabled = false,
},
.fragment = &grid_fragment_state,
};
grid_render_pipeline = wgpuDeviceCreateRenderPipeline(device, &grid_render_pipeline_descriptor);
wgpuPipelineLayoutRelease(grid_pipeline_layout);
wgpuShaderModuleRelease(grid_shader);
}
wgpuBindGroupLayoutRelease(frame_data_bind_group_layout);
return true;
}
static bool recreate_tile_textures() {
WGPUTextureFormat view_formats[] = {
WGPUTextureFormat_RGBA8Unorm,
};
WGPUTextureDescriptor descriptor = {
.label = { .data = "tile_textures_array", .length = WGPU_STRLEN },
.usage = WGPUTextureUsage_TextureBinding | WGPUTextureUsage_CopyDst,
.dimension = WGPUTextureDimension_2D,
.size = { .width = TILE_SIZE, .height = TILE_SIZE, .depthOrArrayLayers = SDL_arraysize(tile_infos) },
.format = WGPUTextureFormat_RGBA8UnormSrgb,
.mipLevelCount = 1,
.sampleCount = 1,
.viewFormatCount = SDL_arraysize(view_formats),
.viewFormats = view_formats,
};
tile_textures_array = wgpuDeviceCreateTexture(device, &descriptor);
if (!tile_textures_array) {
log_error("Failed to create texture.");
return WGPUOptionalBool_False;
}
tile_textures_array_view = wgpuTextureCreateView(tile_textures_array, NULL);
tile_textures_array_view_individual = (WGPUTextureView *)malloc(SDL_arraysize(tile_infos) * sizeof(WGPUTextureView));
for (Uint32 i = 0; i < SDL_arraysize(tile_infos); i++) {
WGPUTextureViewDescriptor descriptor = {
.format = WGPUTextureFormat_RGBA8Unorm,
.dimension = WGPUTextureViewDimension_2D,
.mipLevelCount = 1,
.baseArrayLayer = i,
.arrayLayerCount = 1,
};
tile_textures_array_view_individual[i] = wgpuTextureCreateView(tile_textures_array, &descriptor);
}
for (Uint32 i = 0; i < SDL_arraysize(tile_infos); i++) {
char path[256] = ASSETS_PATH;
SDL_strlcat(path, tile_infos[i].asset_path, SDL_arraysize(path));
int width = 0, height = 0;
stbi_uc *data = stbi_load(path, &width, &height, NULL, 4);
if (!data) {
log_error("Failed to load texture (\"%s\"). Exiting.", path);
wgpuTextureRelease(tile_textures_array);
return false;
}
SDL_assert_always(width == TILE_SIZE);
SDL_assert_always(height == TILE_SIZE);
cpu_tile_infos_buffer[i] = V4_(0, 0, 1, 1);
WGPUTexelCopyTextureInfo texel_copy_texture_info = {
.texture = tile_textures_array,
.mipLevel = 0,
.origin = { .x = 0, .y = 0, .z = i },
.aspect = WGPUTextureAspect_All,
};
WGPUTexelCopyBufferLayout texel_copy_buffer_layout = {
.offset = 0,
.bytesPerRow = TILE_SIZE * 4,
.rowsPerImage = TILE_SIZE,
};
WGPUExtent3D extent = {
.width = TILE_SIZE,
.height = TILE_SIZE,
.depthOrArrayLayers = 1,
};
wgpuQueueWriteTexture(queue, &texel_copy_texture_info, data, width * height * 4, &texel_copy_buffer_layout, &extent);
stbi_image_free(data);
}
return true;
}
static int real_mod(int a, int b) {
int result = a % b;
return result >= 0 ? result : result + b;
}
static bool imgui_time_picker(const char *label, int time[3]) {
bool result = ImGui::DragScalarN(label, ImGuiDataType_S32, time, 3);
time[1] += time[2] >= 0 ? time[2] / 60 : -1;
time[0] += time[1] >= 0 ? time[1] / 60 : -1;
time[2] = real_mod(time[2], 60);
time[1] = real_mod(time[1], 60);
time[0] = real_mod(time[0], 24);
return result;
}
static Uint32 get_corner_info(Sint32 tile_pos_x, Sint32 tile_pos_y) {
if (tile_pos_x < 0 || tile_pos_x >= current_map.width || tile_pos_y < 0 || tile_pos_y >= current_map.height)
return 0;
Uint32 tile = current_map.tiles[tile_pos_y * current_map.width + tile_pos_x];
Uint32 index = tile & 0xffff;
Uint32 rotation = (tile & 0x30000) >> 16;
Uint32 base_corner_info = tile_infos[index].corner_info;
switch (rotation) {
case 0: return base_corner_info;
case 1: return std::rotl(base_corner_info, 8);
case 2: return std::rotl(base_corner_info, 16);
case 3: return std::rotl(base_corner_info, 24);
default: return tile_infos[0].corner_info;
}
}
static Uint32 find_matching_tile(Uint32 corner_info) {
Uint32 corner_info_1 = std::rotr(corner_info, 8);
Uint32 corner_info_2 = std::rotr(corner_info, 16);
Uint32 corner_info_3 = std::rotr(corner_info, 24);
for (Uint32 i = 0; i < SDL_arraysize(tile_infos); i++) {
if (corner_info == tile_infos[i].corner_info)
return i;
if (corner_info_1 == tile_infos[i].corner_info)
return (1 << 16) | i;
if (corner_info_2 == tile_infos[i].corner_info)
return (2 << 16) | i;
if (corner_info_3 == tile_infos[i].corner_info)
return (3 << 16) | i;
}
return 0;
}
static void change_map_tile(Sint32 pos_x, Sint32 pos_y, TileKind kind) {
__m128i corner_infos = _mm_setr_epi32(get_corner_info(pos_x, pos_y + 1), get_corner_info(pos_x + 1, pos_y + 1), get_corner_info(pos_x + 1, pos_y), get_corner_info(pos_x, pos_y));
__m128i none_mask = _mm_cmpeq_epi8(corner_infos, _mm_set1_epi8(TILEKIND_NONE));
__m128i error_mask = _mm_cmpeq_epi8(corner_infos, _mm_set1_epi8(TILEKIND_ERROR));
__m128i kind_mask = _mm_setr_epi32(0x0000ff00, 0x000000ff, 0xff000000, 0x00ff0000);
__m128i replace_mask = _mm_or_si128(_mm_or_si128(none_mask, kind_mask), error_mask);
corner_infos = _mm_andnot_si128(replace_mask, corner_infos);
corner_infos = _mm_or_si128(corner_infos, _mm_and_si128(replace_mask, _mm_set1_epi8(kind)));
Uint32 corner_infos_u32[4];
_mm_storeu_si128((__m128i *)&corner_infos_u32, corner_infos);
if (0 <= pos_x + 0 && pos_x + 0 < current_map.width && 0 <= pos_y + 1 && pos_y + 1 < current_map.height)
current_map.tiles[(pos_y + 1) * current_map.width + pos_x + 0] = find_matching_tile(corner_infos_u32[0]);
if (0 <= pos_x + 1 && pos_x + 1 < current_map.width && 0 <= pos_y + 1 && pos_y + 1 < current_map.height)
current_map.tiles[(pos_y + 1) * current_map.width + pos_x + 1] = find_matching_tile(corner_infos_u32[1]);
if (0 <= pos_x + 1 && pos_x + 1 < current_map.width && 0 <= pos_y + 0 && pos_y + 0 < current_map.height)
current_map.tiles[(pos_y + 0) * current_map.width + pos_x + 1] = find_matching_tile(corner_infos_u32[2]);
if (0 <= pos_x + 0 && pos_x + 0 < current_map.width && 0 <= pos_y + 0 && pos_y + 0 < current_map.height)
current_map.tiles[(pos_y + 0) * current_map.width + pos_x + 0] = find_matching_tile(corner_infos_u32[3]);
update_buffer(current_map.gpu_buffer, 0, current_map.width * current_map.height * sizeof(Uint32), current_map.tiles);
}
static void SameLineOrWrap(const ImVec2& size) {
ImGuiWindow *window = ImGui::GetCurrentWindow();
ImVec2 pos = ImVec2(window->DC.CursorPosPrevLine.x + ImGui::GetStyle().ItemSpacing.x, window->DC.CursorPosPrevLine.y);
if (window->WorkRect.Contains(ImRect(pos, pos + size)))
ImGui::SameLine();
}
static Sint32x2 grid_tile_pos_from_floor_intersection(V2 floor_intersection) {
return {
(Sint32)SDL_floorf(floor_intersection.x + (selected_tile == -1 ? 0.5f : 1.0f)),
(Sint32)SDL_floorf(floor_intersection.y + (selected_tile == -1 ? 0.5f : 1.0f)),
};
}
void request_device_callback(WGPURequestDeviceStatus status, WGPUDevice device_, WGPUStringView message, void *userdata1, void *userdata2) {
if (status != WGPURequestDeviceStatus_Success) {
log_error("Failed to request webgpu device.");
wgpu_init_done = true;
return;
}
device = device_;
queue = wgpuDeviceGetQueue(device);
wgpu_init_done = true;
}
void adapter_request_callback(WGPURequestAdapterStatus status, WGPUAdapter adapter, WGPUStringView message, void *userdata1, void *userdata2) {
if (status != WGPURequestAdapterStatus_Success) {
log_error("Failed to request webgpu adapter.");
wgpu_init_done = true;
return;
}
WGPURequestDeviceCallbackInfo request_device_callback_info = {
.mode = WGPUCallbackMode_AllowProcessEvents,
.callback = request_device_callback,
};
WGPUDeviceDescriptor device_descriptor = {
.label = {},
.requiredFeatureCount = 0,
.requiredFeatures = NULL,
.requiredLimits = NULL,
.defaultQueue = {},
.deviceLostCallbackInfo = {},
.uncapturedErrorCallbackInfo = {},
};
wgpuAdapterRequestDevice(adapter, &device_descriptor, request_device_callback_info);
}
WGPUSurface create_wgpu_surface_for_SDL_window(SDL_Window *window) {
SDL_PropertiesID properties = SDL_GetWindowProperties(window);
#if defined(SDL_PLATFORM_LINUX)
const char *display_system = SDL_GetCurrentVideoDriver();
if (SDL_strcmp(display_system, "wayland") == 0) {
void *display = SDL_GetPointerProperty(properties, SDL_PROP_WINDOW_WAYLAND_DISPLAY_POINTER, NULL);
void *surface = SDL_GetPointerProperty(properties, SDL_PROP_WINDOW_WAYLAND_SURFACE_POINTER, NULL);
if (!display || !surface) return NULL;
WGPUSurfaceSourceWaylandSurface surface_source = {
.chain = { .next = NULL, .sType = WGPUSType_SurfaceSourceWaylandSurface },
.display = display,
.surface = surface,
};
WGPUSurfaceDescriptor descriptor = {
.nextInChain = &surface_source.chain,
.label = { .data = NULL, .length = WGPU_STRLEN },
};
return wgpuInstanceCreateSurface(instance, &descriptor);
} else if (SDL_strcmp(display_system, "x11") == 0) {
void *display = SDL_GetPointerProperty(properties, SDL_PROP_WINDOW_X11_DISPLAY_POINTER, NULL);
uint64_t xlib_window = SDL_GetNumberProperty (properties, SDL_PROP_WINDOW_X11_WINDOW_NUMBER, NULL);
if (!display || !xlib_window) return NULL;
WGPUSurfaceSourceXlibWindow surface_source = {
.chain = { .next = NULL, .sType = WGPUSType_SurfaceSourceXlibWindow },
.display = display,
.window = xlib_window,
};
WGPUSurfaceDescriptor descriptor = {
.nextInChain = &surface_source.chain,
.label = { .data = NULL, .length = WGPU_STRLEN },
};
return wgpuInstanceCreateSurface(instance, &descriptor);
} else {
log_error("create_wgpu_surface_for_SDL_window is not implemented for this display system (%s).", display_system);
return NULL;
}
#elif defined(SDL_PLATFORM_WINDOWS)
void *hinstance = SDL_GetPointerProperty(properties, SDL_PROP_WINDOW_WIN32_INSTANCE_POINTER, NULL);
void *hwnd = SDL_GetPointerProperty(properties, SDL_PROP_WINDOW_WIN32_HWND_POINTER, NULL);
if (!hinstance || !hwnd) return NULL;
WGPUSurfaceSourceWindowsHWND surface_source = {
.chain = { .next = NULL, .sType = WGPUSType_SurfaceSourceWindowsHWND },
.hinstance = hinstance,
.hwnd = hwnd,
};
WGPUSurfaceDescriptor descriptor = {
.nextInChain = &surface_source.chain,
.label = { .data = NULL, .length = WGPU_STRLEN },
};
return wgpuInstanceCreateSurface(instance, &descriptor);
#else
static_assert(false, "create_wgpu_surface_for_SDL_window is not implemented for this platform.");
#endif
return NULL;
}
int main(int argc, char **argv) {
setup_memory_functions();
#ifdef SDL_PLATFORM_LINUX
if (getenv("ENABLE_VULKAN_RENDERDOC_CAPTURE"))
SDL_SetHint(SDL_HINT_VIDEO_DRIVER, "x11,wayland");
#endif
if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_EVENTS | SDL_INIT_GAMEPAD)) {
log_error("Failed to initialize SDL (%s). Exiting.", SDL_GetError());
return 1;
}
if (!Mix_Init(MIX_INIT_OPUS)) {
log_error("Failed to init SDL_mixer. Exiting.");
return 1;
}
instance = wgpuCreateInstance(NULL);
if (!instance) {
log_error("Failed to create webgpu instance. Exiting.");
return 1;
}
window = SDL_CreateWindow("Mikemon", 1280, 720, SDL_WINDOW_RESIZABLE);
if (!window) {
log_error("Failed to create window (%s). Exiting.", SDL_GetError());
return 1;
}
surface = create_wgpu_surface_for_SDL_window(window);
if (!surface) {
log_error("Failed to create webgpu surface for SDL window. Exiting.");
return 1;
}
WGPURequestAdapterCallbackInfo request_adapter_callback_info = {
.mode = WGPUCallbackMode_AllowProcessEvents,
.callback = adapter_request_callback,
};
WGPURequestAdapterOptions request_adapter_options = {
.featureLevel = WGPUFeatureLevel_Core,
.powerPreference = WGPUPowerPreference_HighPerformance,
.forceFallbackAdapter = false,
.backendType = WGPUBackendType_Vulkan,
.compatibleSurface = surface,
};
wgpuInstanceRequestAdapter(instance, &request_adapter_options, request_adapter_callback_info);
while (!wgpu_init_done) {
wgpuInstanceProcessEvents(instance);
}
if (!device) {
log_error("Failed to initialize webgpu. Exiting.");
return 1;
}
WGPUSurfaceConfiguration surface_configuration = {
.device = device,
.format = WGPUTextureFormat_BGRA8UnormSrgb,
.usage = WGPUTextureUsage_RenderAttachment,
.width = 1280,
.height = 720,
.viewFormatCount = 0,
.viewFormats = NULL,
.alphaMode = WGPUCompositeAlphaMode_Opaque,
.presentMode = WGPUPresentMode_Fifo,
};
wgpuSurfaceConfigure(surface, &surface_configuration);
if (!recreate_graphics_pipelines()) {
log_error("Failed to create graphics pipelines. Exiting.");
return 1;
}
if (!load_map("map.sv", &current_map)) {
log_error("Failed to load initial map. Exiting.");
return 1;
}
WGPUTexture player_texture = create_shader_texture("decorations/strawberry.png");
if (!player_texture) {
log_error("Failed to create shader texture. Exiting.");
return 1;
}
WGPUTextureView player_texture_view = wgpuTextureCreateView(player_texture, NULL);
if (!recreate_tile_textures()) {
log_error("Failed to create tile textures. Exiting.");
return 1;
}
WGPUSamplerDescriptor pixel_sampler_descriptor = {
.label = { .data = "pixel_sampler", .length = WGPU_STRLEN },
.addressModeU = WGPUAddressMode_ClampToEdge,
.addressModeV = WGPUAddressMode_ClampToEdge,
.addressModeW = WGPUAddressMode_ClampToEdge,
.magFilter = WGPUFilterMode_Linear,
.minFilter = WGPUFilterMode_Linear,
.mipmapFilter = WGPUMipmapFilterMode_Linear,
.maxAnisotropy = 16,
};
pixel_sampler = wgpuDeviceCreateSampler(device, &pixel_sampler_descriptor);
view_projection_matrix_buffer = create_buffer(WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, sizeof(M4x4), NULL, "view_projection_matrix_buffer");
if (!view_projection_matrix_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
per_frame_buffer = create_buffer(WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, sizeof(per_frame), NULL, "per_frame_buffer");
if (!per_frame_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
tint_color_buffer = create_buffer(WGPUBufferUsage_Uniform | WGPUBufferUsage_CopyDst, sizeof(V3), NULL, "tint_color_buffer");
if (!tint_color_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
vertex_buffer = create_buffer(WGPUBufferUsage_Vertex, sizeof(vertices), vertices, "vertex_buffer");
if (!vertex_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
index_buffer = create_buffer(WGPUBufferUsage_Index, sizeof(indices), indices, "index_buffer");
if (!index_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
grid_vertex_buffer = create_buffer(WGPUBufferUsage_Vertex, sizeof(grid_vertices), grid_vertices, "grid_vertex_buffer");
if (!grid_vertex_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
grid_index_buffer = create_buffer(WGPUBufferUsage_Index, sizeof(grid_indices), grid_indices, "grid_index_buffer");
if (!grid_index_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
player_instance_buffer = create_buffer(WGPUBufferUsage_Vertex | WGPUBufferUsage_CopyDst, sizeof(player_instance), &player_instance, "player_instance_buffer");
if (!player_instance_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
tile_infos_buffer = create_buffer(WGPUBufferUsage_Storage, SDL_arraysize(cpu_tile_infos_buffer) * sizeof(*cpu_tile_infos_buffer), cpu_tile_infos_buffer, "tile_infos_buffer");
if (!tile_infos_buffer) {
log_error("Failed to create buffer. Exiting.");
return 1;
}
WGPUBindGroupEntry per_frame_bind_group_entries[] = {
{ .binding = 0, .buffer = view_projection_matrix_buffer, .offset = 0, .size = WGPU_WHOLE_SIZE },
{ .binding = 1, .buffer = per_frame_buffer, .offset = 0, .size = WGPU_WHOLE_SIZE },
};
WGPUBindGroupDescriptor per_frame_bind_group_descriptor = {
.label = { .data = "per_frame_bind_group", .length = WGPU_STRLEN },
.layout = wgpuRenderPipelineGetBindGroupLayout(world_render_pipeline, 0),
.entryCount = SDL_arraysize(per_frame_bind_group_entries),
.entries = per_frame_bind_group_entries,
};
per_frame_bind_group = wgpuDeviceCreateBindGroup(device, &per_frame_bind_group_descriptor);
WGPUBindGroupEntry world_bind_group_entries[] = {
{ .binding = 0, .textureView = tile_textures_array_view },
{ .binding = 1, .sampler = pixel_sampler },
{ .binding = 2, .buffer = tint_color_buffer, .offset = 0, .size = WGPU_WHOLE_SIZE },
{ .binding = 3, .buffer = tile_infos_buffer, .offset = 0, .size = WGPU_WHOLE_SIZE },
};
WGPUBindGroupDescriptor world_bind_group_descriptor = {
.label = { .data = "world_bind_group", .length = WGPU_STRLEN },
.layout = wgpuRenderPipelineGetBindGroupLayout(world_render_pipeline, 1),
.entryCount = SDL_arraysize(world_bind_group_entries),
.entries = world_bind_group_entries,
};
world_bind_group = wgpuDeviceCreateBindGroup(device, &world_bind_group_descriptor);
WGPUBindGroupEntry basic_bind_group_entries[] = {
{ .binding = 0, .textureView = player_texture_view },
{ .binding = 1, .sampler = pixel_sampler },
{ .binding = 2, .buffer = tint_color_buffer, .offset = 0, .size = WGPU_WHOLE_SIZE },
};
WGPUBindGroupDescriptor basic_bind_group_descriptor = {
.label = { .data = "basic_bind_group", .length = WGPU_STRLEN },
.layout = wgpuRenderPipelineGetBindGroupLayout(basic_render_pipeline, 1),
.entryCount = SDL_arraysize(basic_bind_group_entries),
.entries = basic_bind_group_entries,
};
basic_bind_group = wgpuDeviceCreateBindGroup(device, &basic_bind_group_descriptor);
SDL_AudioSpec audio_spec = {
.format = SDL_AUDIO_F32,
.channels = 2,
.freq = 48000,
};
if (!Mix_OpenAudio(0, &audio_spec)) {
log_error("Failed to open default audio device. Ignoring.");
}
music_setting_off_piano = Mix_LoadMUS(ASSETS_PATH "music/setting_off_piano.opus");
if (!music_setting_off_piano) {
log_error("Failed to load music setting_off_piano.opus. Ignoring.");
}
IMGUI_CHECKVERSION();
ImGuiContext *imgui_context = ImGui::CreateContext();
ImGuiIO &io = ImGui::GetIO();
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad;
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
ImGui::StyleColorsDark();
ImGui_ImplSDL3_InitForOther(window);
ImGui_ImplWGPU_InitInfo imgui_init_info = {};
imgui_init_info.Device = device;
imgui_init_info.RenderTargetFormat = WGPUTextureFormat_BGRA8UnormSrgb;
imgui_init_info.PipelineMultisampleState = {
.count = 4,
.mask = ~0u,
.alphaToCoverageEnabled = false,
};
ImGui_ImplWGPU_Init(&imgui_init_info);
ImGuiSettingsHandler time_tints_settings_handler = {};
time_tints_settings_handler.TypeName = "TimeTints";
time_tints_settings_handler.TypeHash = ImHashStr("TimeTints");
time_tints_settings_handler.ReadOpenFn = [](ImGuiContext *context, ImGuiSettingsHandler *handler, const char *name) -> void * {
if (strcmp(name, "num") == 0)
return (void *)-1;
int num = atoi(name) + 1;
return (void *)(Sint64)num;
};
time_tints_settings_handler.ReadLineFn = [](ImGuiContext *context, ImGuiSettingsHandler *handler, void *entry, const char *line) {
if (entry == (void *)-1) {
SDL_sscanf(line, "num=%d", &num_used_tint_times);
return;
}
if (strncmp(line, "time", 4) == 0) {
SDL_sscanf(line, "time=%d %d %d", &time_tints_times[(size_t)entry - 1][0], &time_tints_times[(size_t)entry - 1][1], &time_tints_times[(size_t)entry - 1][2]);
} else if(strncmp(line, "color", 5) == 0) {
SDL_sscanf(line, "color=%g %g %g", &time_tints[(size_t)entry - 1][0], &time_tints[(size_t)entry - 1][1], &time_tints[(size_t)entry - 1][2]);
}
};
time_tints_settings_handler.WriteAllFn = [](ImGuiContext *context, ImGuiSettingsHandler *handler, ImGuiTextBuffer *buffer) {
buffer->append("[TimeTints][num]\n");
buffer->appendf("num=%d\n\n", num_used_tint_times);
for (int i = 0; i < num_used_tint_times; i++) {
buffer->appendf("[TimeTints][%d]\n", i);
buffer->appendf("time=%d %d %d\n", time_tints_times[i][0], time_tints_times[i][1], time_tints_times[i][2]);
buffer->appendf("color=%g %g %g\n\n", time_tints[i][0], time_tints[i][1], time_tints[i][2]);
}
};
ImGui::AddSettingsHandler(&time_tints_settings_handler);
ImGuiSettingsHandler settings_handler = {};
settings_handler.TypeName = "Settings";
settings_handler.TypeHash = ImHashStr("Settings");
settings_handler.ReadOpenFn = [](ImGuiContext *context, ImGuiSettingsHandler *handler, const char *name) -> void * {
if (strcmp(name, "Audio") == 0)
return (void *)SETTINGS_AUDIO;
return (void *)SETTINGS_UNKNOWN;
};
settings_handler.ReadLineFn = [](ImGuiContext *context, ImGuiSettingsHandler *handler, void *entry, const char *line) {
if (entry == (void *)SETTINGS_AUDIO) {
if (SDL_sscanf(line, "Master=%f", &volume_master) == 1) {
Mix_MasterVolume(MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_sfx / 100.0f));
Mix_VolumeMusic (MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_music / 100.0f));
}
if (SDL_sscanf(line, "Music=%f", &volume_music) == 1)
Mix_VolumeMusic(MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_music / 100.0f));
if (SDL_sscanf(line, "SFX=%f", &volume_sfx) == 1)
Mix_MasterVolume(MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_sfx / 100.0f));
return;
}
};
settings_handler.WriteAllFn = [](ImGuiContext *context, ImGuiSettingsHandler *handler, ImGuiTextBuffer *buffer) {
buffer->append("[Settings][Audio]\n");
buffer->appendf("Master=%.0f\n", volume_master);
buffer->appendf("Music=%.0f\n", volume_music);
buffer->appendf("SFX=%.0f\n", volume_sfx);
buffer->append("\n");
};
ImGui::AddSettingsHandler(&settings_handler);
bool first_frame = true;
bool show_demo_window = false;
bool show_tile_picker = false;
bool show_settings = false;
SDL_GetWindowSizeInPixels(window, &window_width, &window_height);
Uint32 framebuffer_width = 0;
Uint32 framebuffer_height = 0;
// MSG Message;
while (Running) {
ZoneScopedN("Loop");
ImGui_ImplWGPU_NewFrame();
ImGui_ImplSDL3_NewFrame();
ImGui::NewFrame();
SDL_GetCurrentTime(&time);
if (use_actual_time)
SDL_TimeToDateTime(time, &calendar_time, true);
calendar_time.minute += calendar_time.second >= 0 ? calendar_time.second / 60 : calendar_time.second / 60 - 1;
calendar_time.hour += calendar_time.minute >= 0 ? calendar_time.minute / 60 : calendar_time.minute / 60 - 1;
calendar_time.second = real_mod(calendar_time.second, 60);
calendar_time.minute = real_mod(calendar_time.minute, 60);
calendar_time.hour = real_mod(calendar_time.hour, 24);
if (ImGui::BeginMainMenuBar()) {
if (ImGui::BeginMenu("File")) {
ImGui::MenuItem("Settings", NULL, &show_settings);
ImGui::MenuItem("Demo Window", NULL, &show_demo_window);
ImGui::Separator();
if (ImGui::MenuItem("Exit")) {
Running = false;
}
ImGui::EndMenu();
}
if (ImGui::BeginMenu("Edit")) {
ImGui::MenuItem("Tile Picker", NULL, &show_tile_picker);
ImGui::EndMenu();
}
ImGui::EndMainMenuBar();
}
ImGuiID main_viewport_dock = ImGui::GetID("main_viewport_dock");
if (!ImGui::DockBuilderGetNode(main_viewport_dock)) {
ImGui::DockBuilderAddNode (main_viewport_dock, (ImGuiDockNodeFlags)ImGuiDockNodeFlags_DockSpace | ImGuiDockNodeFlags_AutoHideTabBar | ImGuiDockNodeFlags_PassthruCentralNode | ImGuiDockNodeFlags_NoDockingOverCentralNode);
ImGui::DockBuilderSetNodePos (main_viewport_dock, ImGui::GetMainViewport()->WorkPos);
ImGui::DockBuilderSetNodeSize(main_viewport_dock, ImGui::GetMainViewport()->WorkSize);
ImGuiID left_dock = ImGui::DockBuilderSplitNode(main_viewport_dock, ImGuiDir_Left, 0.2f, NULL, NULL);
ImGui::DockBuilderDockWindow("Tile Picker", left_dock);
ImGui::DockBuilderFinish(main_viewport_dock);
}
ImGui::DockSpaceOverViewport(main_viewport_dock, ImGui::GetMainViewport(), ImGuiDockNodeFlags_AutoHideTabBar | ImGuiDockNodeFlags_PassthruCentralNode | ImGuiDockNodeFlags_NoDockingOverCentralNode);
if (show_settings) {
ImGui::SetNextWindowSize(ImVec2(400, 0), ImGuiCond_FirstUseEver);
if (ImGui::Begin("Settings", &show_settings)) {
if (ImGui::DragFloat("Master", &volume_master, 1.0f, 0.0f, 100.0f, "%.0f", ImGuiSliderFlags_AlwaysClamp)) {
Mix_MasterVolume(MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_sfx / 100.0f));
Mix_VolumeMusic (MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_music / 100.0f));
};
if (ImGui::DragFloat("Music", &volume_music, 1.0f, 0.0f, 100.0f, "%.0f", ImGuiSliderFlags_AlwaysClamp)) {
Mix_VolumeMusic(MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_music / 100.0f));
}
if (ImGui::DragFloat("SFX", &volume_sfx, 1.0f, 0.0f, 100.0f, "%.0f", ImGuiSliderFlags_AlwaysClamp)) {
Mix_MasterVolume(MIX_MAX_VOLUME * (volume_master / 100.0f) * (volume_sfx / 100.0f));
}
ImGui::NewLine();
ImGui::DragFloat("fovy", &camera_fovy_degrees);
ImGui::DragFloat("camera_distance", &camera_distance, 0.25f, 1.0f, INFINITY);
ImGui::DragFloat("camera_tilt", &camera_tilt, 0.25f, 0.0f, 89.0f);
ImGui::NewLine();
ImGui::BeginDisabled(use_actual_time);
ImGui::DragScalarN("Time", ImGuiDataType_S32, &calendar_time.hour, 3);
ImGui::EndDisabled();
ImGui::Checkbox("use actual time", &use_actual_time);
ImGui::NewLine();
for (int i = 0; i < num_used_tint_times; i++) {
ImGui::PushID(i);
imgui_time_picker("##time", time_tints_times[i]);
ImGui::PopID();
}
if (ImGui::Button("Add")) num_used_tint_times = clamp(1, num_used_tint_times + 1, MAX_TINT_TIMES);
ImGui::SameLine();
if (ImGui::Button("Remove")) num_used_tint_times = clamp(1, num_used_tint_times - 1, MAX_TINT_TIMES);
ImGui::NewLine();
for (int i = 0; i < num_used_tint_times; i++) {
ImGui::PushID(i);
ImGui::ColorEdit3("##color", time_tints[i].E);
ImGui::PopID();
}
if (!ImGui::IsAnyItemActive()) {
for (int j = 0; j < num_used_tint_times; j++) {
for (int i = 0; i < num_used_tint_times - 1; i++) {
if (time_tints_times[i][0] > time_tints_times[i + 1][0] ||
time_tints_times[i][0] == time_tints_times[i + 1][0] && time_tints_times[i][1] > time_tints_times[i + 1][1] ||
time_tints_times[i][0] == time_tints_times[i + 1][0] && time_tints_times[i][1] == time_tints_times[i + 1][1] && time_tints_times[i][2] > time_tints_times[i + 1][2]) {
int temp_time[3] = { time_tints_times[i][0], time_tints_times[i][1], time_tints_times[i][2] };
V3 temp_color = time_tints[i];
time_tints_times[i][0] = time_tints_times[i + 1][0];
time_tints_times[i][1] = time_tints_times[i + 1][1];
time_tints_times[i][2] = time_tints_times[i + 1][2];
time_tints[i] = time_tints[i + 1];
time_tints_times[i + 1][0] = temp_time[0];
time_tints_times[i + 1][1] = temp_time[1];
time_tints_times[i + 1][2] = temp_time[2];
time_tints[i + 1] = temp_color;
}
}
}
}
}
ImGui::End();
}
if (show_tile_picker) {
if (ImGui::Begin("Tile Picker", &show_tile_picker, ImGuiWindowFlags_NoFocusOnAppearing)) {
if (ImGui::Selectable("None", selected_tile_kind == -1 && selected_tile == -1)) {
selected_tile_kind = -1;
selected_tile = -1;
}
if (ImGui::Selectable("Grass", selected_tile_kind == TILEKIND_GRASS)) {
selected_tile_kind = TILEKIND_GRASS;
selected_tile = -1;
}
if (ImGui::Selectable("Ground", selected_tile_kind == TILEKIND_GROUND)) {
selected_tile_kind = TILEKIND_GROUND;
selected_tile = -1;
}
for (int i = 0; i < SDL_arraysize(tile_infos); i++) {
ImGui::PushID(i);
ImVec2 uv0 = ImVec2(0, 0);
ImVec2 uv1 = ImVec2(1, 1);
if (i != 0)
SameLineOrWrap(ImVec2(32, 32));
if (SelectableTile("##tile", selected_tile == i, i, ImVec2(32, 32), uv0, uv1, SDL_max(selected_rotation, 0))) {
selected_tile_kind = -1;
selected_tile = i;
}
ImGui::PopID();
}
if (selected_tile != -1) {
ImGui::Text("Rotation:");
ImVec2 uv0 = ImVec2(0, 0);
ImVec2 uv1 = ImVec2(1, 1);
if (SelectableTile("##None", selected_rotation == 0, selected_tile, ImVec2(32, 32), uv0, uv1, 0))
selected_rotation = 0;
SameLineOrWrap(ImVec2(32, 32));
if (SelectableTile("##90", selected_rotation == 1, selected_tile, ImVec2(32, 32), uv0, uv1, 1))
selected_rotation = 1;
SameLineOrWrap(ImVec2(32, 32));
if (SelectableTile("##180", selected_rotation == 2, selected_tile, ImVec2(32, 32), uv0, uv1, 2))
selected_rotation = 2;
SameLineOrWrap(ImVec2(32, 32));
if (SelectableTile("##270", selected_rotation == 3, selected_tile, ImVec2(32, 32), uv0, uv1, 3))
selected_rotation = 3;
if (ImGui::Selectable("Random", selected_rotation == -1))
selected_rotation = -1;
}
if (selected_tile != -1 && ImGui::IsWindowFocused() && ImGui::IsKeyPressed(ImGuiKey_R, false)) {
if (ImGui::IsKeyDown(ImGuiKey_LeftShift)) {
selected_rotation = (selected_rotation - 1) & 3;
} else {
selected_rotation = (selected_rotation + 1) & 3;
}
}
}
ImGui::End();
} else {
selected_tile = -1;
selected_tile_kind = -1;
}
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);
if (first_frame) {
ImGui::SetWindowFocus(NULL);
first_frame = false;
}
TracyCZoneN(tracy_wgpuSurfaceGetCurrentTexture, "wgpuSurfaceGetCurrentTexture", true);
WGPUSurfaceTexture surface_texture = {};
wgpuSurfaceGetCurrentTexture(surface, &surface_texture);
if (surface_texture.status != WGPUSurfaceGetCurrentTextureStatus_SuccessOptimal && surface_texture.status != WGPUSurfaceGetCurrentTextureStatus_SuccessSuboptimal) {
log_error("Failed to get current surface texture (%x). Exiting.", surface_texture.status);
return 1;
}
WGPUTextureView surface_texture_view = wgpuTextureCreateView(surface_texture.texture, NULL);
TracyCZoneEnd(tracy_wgpuSurfaceGetCurrentTexture);
{
ZoneScopedN("Events");
SDL_Event event;
while (SDL_PollEvent(&event)) {
ZoneScopedN("Event");
ImGui_ImplSDL3_ProcessEvent(&event);
switch (event.type) {
case SDL_EVENT_QUIT: {
Running = false;
} break;
case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED: {
window_width = event.window.data1;
window_height = event.window.data2;
} break;
case SDL_EVENT_KEY_DOWN: {
if (io.WantCaptureKeyboard)
continue;
SDL_Keymod modifiers = SDL_GetModState();
if (event.key.key == SDLK_UP || event.key.key == SDLK_W) {
player.pos_y = clamp(0, player.pos_y + 1, current_map.height - 2);
}
if (event.key.key == SDLK_LEFT || event.key.key == SDLK_A) {
player.pos_x = clamp(0, player.pos_x - 1, current_map.width - 2);
}
if (event.key.key == SDLK_DOWN || event.key.key == SDLK_S) {
player.pos_y = clamp(0, player.pos_y - 1, current_map.height - 2);
}
if (event.key.key == SDLK_RIGHT || event.key.key == SDLK_D) {
player.pos_x = clamp(0, player.pos_x + 1, current_map.width - 2);
}
if (event.key.key == SDLK_F1) {
save_map(current_map);
}
if (event.key.key == SDLK_F4) {
char *map_path = SDL_strdup(current_map.name);
unload_map(&current_map);
load_map(map_path, &current_map);
SDL_free(map_path);
}
if (event.key.key == SDLK_R) {
if (selected_tile != -1 && selected_rotation != -1) {
if (modifiers & SDL_KMOD_SHIFT) {
selected_rotation = (selected_rotation - 1) & 3;
} else {
selected_rotation = (selected_rotation + 1) & 3;
}
}
}
} break;
case SDL_EVENT_MOUSE_BUTTON_DOWN: {
if (io.WantCaptureMouse)
continue;
V2 floor_intersection = get_floor_intersection_of_mouse(V2_(event.button.x, event.button.y));
Sint32x2 tile_pos = grid_tile_pos_from_floor_intersection(floor_intersection);
drag_start_pos = floor_intersection;
if (selected_tile_kind != -1) {
change_map_tile(tile_pos.x, tile_pos.y, (TileKind)selected_tile_kind);
if (-1 <= tile_pos.x && tile_pos.x < current_map.width && -1 <= tile_pos.y && tile_pos.y < current_map.height) {
dragging_tile_change = true;
}
}
if (0 <= tile_pos.x && tile_pos.x < current_map.width && 0 <= tile_pos.y && tile_pos.y < current_map.height) {
dragging_tile_change = true;
}
SDL_Keymod modifiers = SDL_GetModState();
if (modifiers & SDL_KMOD_SHIFT && tile_pos.x <= -1) {
if(modifiers & SDL_KMOD_CTRL)
change_map_size(&current_map, 'W', -1);
else
change_map_size(&current_map, 'W', 1);
}
if (modifiers & SDL_KMOD_SHIFT && tile_pos.x == current_map.width) {
if (modifiers & SDL_KMOD_CTRL)
change_map_size(&current_map, 'E', -1);
else
change_map_size(&current_map, 'E', 1);
}
if (modifiers & SDL_KMOD_SHIFT && tile_pos.y <= -1) {
if (modifiers & SDL_KMOD_CTRL)
change_map_size(&current_map, 'N', -1);
else
change_map_size(&current_map, 'N', 1);
}
if (modifiers & SDL_KMOD_SHIFT && tile_pos.y == current_map.height) {
if (modifiers & SDL_KMOD_CTRL)
change_map_size(&current_map, 'S', -1);
else
change_map_size(&current_map, 'S', 1);
}
} break;
case SDL_EVENT_MOUSE_BUTTON_UP: {
if (io.WantCaptureMouse)
continue;
if (selected_tile != -1 && dragging_tile_change) {
V2 floor_intersection = get_floor_intersection_of_mouse(V2_(event.button.x, event.button.y));
Sint32x2 tile_pos = grid_tile_pos_from_floor_intersection(floor_intersection);
Sint32 tile_x = clamp(0, tile_pos.x, current_map.width - 1);
Sint32 tile_y = clamp(0, tile_pos.y, current_map.height - 1);
Sint32x2 drag_start = grid_tile_pos_from_floor_intersection(drag_start_pos);
Sint32 start_x = min(tile_x, drag_start.x);
Sint32 start_y = min(tile_y, drag_start.y);
Sint32 end_x = max(tile_x, drag_start.x);
Sint32 end_y = max(tile_y, drag_start.y);
for (Sint32 y = start_y; y <= end_y; y++) {
for (Sint32 x = start_x; x <= end_x; x++) {
if (selected_rotation == -1) {
Sint32 rotation = SDL_rand(4);
current_map.tiles[x + current_map.width * y] = ((rotation & 3) << 16) | selected_tile;
} else {
current_map.tiles[x + current_map.width * y] = ((selected_rotation & 3) << 16) | selected_tile;
}
}
}
update_buffer(current_map.gpu_buffer, 0, current_map.width * current_map.height * sizeof(Uint32), current_map.tiles);
}
dragging_tile_change = false;
} break;
case SDL_EVENT_MOUSE_MOTION: {
mouse_pos = V2_(event.motion.x, event.motion.y);
if (selected_tile_kind != -1 && dragging_tile_change) {
V2 floor_intersection = get_floor_intersection_of_mouse(mouse_pos);
Sint32x2 tile_pos = grid_tile_pos_from_floor_intersection(floor_intersection);
change_map_tile(tile_pos.x, tile_pos.y, (TileKind)selected_tile_kind);
}
} break;
case SDL_EVENT_GAMEPAD_BUTTON_DOWN: {
if (io.WantCaptureKeyboard)
continue;
if (event.gbutton.button == SDL_GAMEPAD_BUTTON_DPAD_UP) {
player.pos_y = clamp(0, player.pos_y + 1, current_map.height - 2);
}
if (event.gbutton.button == SDL_GAMEPAD_BUTTON_DPAD_LEFT) {
player.pos_x = clamp(0, player.pos_x - 1, current_map.width - 2);
}
if (event.gbutton.button == SDL_GAMEPAD_BUTTON_DPAD_DOWN) {
player.pos_y = clamp(0, player.pos_y - 1, current_map.height - 2);
}
if (event.gbutton.button == SDL_GAMEPAD_BUTTON_DPAD_RIGHT) {
player.pos_x = clamp(0, player.pos_x + 1, current_map.width - 2);
}
} break;
}
}
}
if (!Mix_PlayingMusic()) {
Mix_PlayMusic(music_setting_off_piano, -1);
}
Uint32 surface_width = wgpuTextureGetWidth (surface_texture.texture);
Uint32 surface_height = wgpuTextureGetHeight(surface_texture.texture);
if (surface_width != window_width || surface_height != window_height) {
wgpuTextureViewRelease(surface_texture_view);
wgpuTextureRelease(surface_texture.texture);
ImGui::EndFrame();
surface_configuration.width = window_width;
surface_configuration.height = window_height;
wgpuSurfaceConfigure(surface, &surface_configuration);
continue;
}
if (framebuffer_width != surface_width || framebuffer_height != surface_height) {
if (framebuffer) wgpuTextureRelease(framebuffer);
WGPUTextureDescriptor descriptor = {
.label = { .data = "framebuffer", .length = WGPU_STRLEN },
.usage = WGPUTextureUsage_RenderAttachment,
.dimension = WGPUTextureDimension_2D,
.size = { .width = surface_width, .height = surface_height, .depthOrArrayLayers = 1 },
.format = surface_configuration.format,
.mipLevelCount = 1,
.sampleCount = 4,
.viewFormatCount = 0,
.viewFormats = NULL,
};
framebuffer = wgpuDeviceCreateTexture(device, &descriptor);
framebuffer_width = surface_width;
framebuffer_height = surface_height;
}
WGPUTextureView framebuffer_view = wgpuTextureCreateView(framebuffer, NULL);
WGPUCommandEncoderDescriptor command_encoder_descriptor = {};
WGPUCommandEncoder command_encoder = wgpuDeviceCreateCommandEncoder(device, &command_encoder_descriptor);
{
ZoneScopedN("Update");
{
ZoneScopedN("player_instance_buffer");
player_instance.pos.x = player.pos_x;
player_instance.pos.y = player.pos_y;
update_buffer(player_instance_buffer, 0, sizeof(player_instance), &player_instance);
}
{
ZoneScopedN("per_frame");
float aspect_ratio = ((float) window_width / (float) window_height);
view_matrix = view (V3_((float)player.pos_x, (float)player.pos_y, 0), radians(camera_tilt), camera_distance);
inverse_view_matrix = inverse_view(V3_((float)player.pos_x, (float)player.pos_y, 0), radians(camera_tilt), camera_distance);
projection_matrix = projection (radians(camera_fovy_degrees), aspect_ratio, NEAR_PLANE);
inverse_projection_matrix = inverse_projection(radians(camera_fovy_degrees), aspect_ratio, NEAR_PLANE);
M4x4 view_projection_matrix = projection_matrix * view_matrix;
update_buffer(view_projection_matrix_buffer, 0, sizeof(view_projection_matrix), &view_projection_matrix);
V2 floor_intersection = get_floor_intersection_of_mouse(mouse_pos);
Sint32x2 tile_pos = grid_tile_pos_from_floor_intersection(floor_intersection);
per_frame.map_width = current_map.width;
per_frame.grid_width = selected_tile != -1 ? current_map.width : current_map.width + 1;
per_frame.grid_offset = selected_tile != -1 ? V2_(-0.5f, -0.5f) : V2_(-1.0f, -1.0f);
per_frame.mouse = tile_pos;
if (dragging_tile_change && selected_tile != -1) {
Sint32x2 grid_tile_pos = grid_tile_pos_from_floor_intersection(drag_start_pos);
per_frame.drag_start = grid_tile_pos;
} else {
per_frame.drag_start = tile_pos;
}
update_buffer(per_frame_buffer, 0, sizeof(per_frame), &per_frame);
}
{
ZoneScopedN("tint color");
Sint64 tint_times_ns[MAX_TINT_TIMES];
for (int i = 0; i < num_used_tint_times; i++)
tint_times_ns[i] = (time_tints_times[i][0] * 60 * 60 + time_tints_times[i][1] * 60 + time_tints_times[i][2]) * SDL_NS_PER_SECOND;
tint_times_ns[num_used_tint_times] = (24 * 60 * 60 + 60 * 60 + 60) * SDL_NS_PER_SECOND + tint_times_ns[0];
Sint64 calendar_time_ns = (calendar_time.hour * 60 * 60 + calendar_time.minute * 60 + calendar_time.second) * SDL_NS_PER_SECOND + (Sint64)calendar_time.nanosecond;
int last_time_index = num_used_tint_times - 1;
for (int i = 0; i < num_used_tint_times; i++) {
if (calendar_time_ns > tint_times_ns[i])
last_time_index = i;
}
if (calendar_time_ns <= tint_times_ns[0]) calendar_time_ns += (24 * 60 * 60 + 60 * 60 + 60) * SDL_NS_PER_SECOND;
Sint64 v = calendar_time_ns - tint_times_ns[last_time_index];
Sint64 time_between = tint_times_ns[last_time_index + 1] - tint_times_ns[last_time_index];
double t = v / (double)time_between;
V3 tint_color = lerp(time_tints[last_time_index], time_tints[(last_time_index + 1) % num_used_tint_times], t);
update_buffer(tint_color_buffer, 0, sizeof(tint_color), &tint_color);
}
}
WGPURenderPassColorAttachment render_pass_color_attachment = {
.view = framebuffer_view,
.depthSlice = 0,
.resolveTarget = surface_texture_view,
.loadOp = WGPULoadOp_Clear,
.storeOp = WGPUStoreOp_Discard,
.clearValue = { .r = 0.01f, .g = 0.01f, .b = 0.01f, .a = 1.0f },
};
WGPURenderPassDescriptor render_pass_descriptor = {
.label = { .data = "main_render_pass", .length = WGPU_STRLEN },
.colorAttachmentCount = 1,
.colorAttachments = &render_pass_color_attachment,
.depthStencilAttachment = NULL,
.occlusionQuerySet = NULL,
.timestampWrites = NULL,
};
WGPURenderPassEncoder render_pass_encoder = wgpuCommandEncoderBeginRenderPass(command_encoder, &render_pass_descriptor);
wgpuRenderPassEncoderSetBindGroup(render_pass_encoder, 0, per_frame_bind_group, 0, NULL);
{ // Draw Map
ZoneScopedN("Draw Map");
wgpuRenderPassEncoderSetPipeline(render_pass_encoder, world_render_pipeline);
wgpuRenderPassEncoderSetIndexBuffer(render_pass_encoder, index_buffer, WGPUIndexFormat_Uint16, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetVertexBuffer(render_pass_encoder, 0, vertex_buffer, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetVertexBuffer(render_pass_encoder, 1, current_map.gpu_buffer, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetBindGroup(render_pass_encoder, 1, world_bind_group, 0, NULL);
wgpuRenderPassEncoderDrawIndexed(render_pass_encoder, 6, current_map.height * current_map.width, 0, 0, 0);
}
{ // Draw Player
ZoneScopedN("Draw Player");
wgpuRenderPassEncoderSetPipeline(render_pass_encoder, basic_render_pipeline);
wgpuRenderPassEncoderSetIndexBuffer(render_pass_encoder, index_buffer, WGPUIndexFormat_Uint16, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetVertexBuffer(render_pass_encoder, 0, vertex_buffer, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetVertexBuffer(render_pass_encoder, 1, player_instance_buffer, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetBindGroup(render_pass_encoder, 1, basic_bind_group, 0, NULL);
wgpuRenderPassEncoderDrawIndexed(render_pass_encoder, 6, 1, 0, 0, 0);
}
if (show_tile_picker) { // Draw Grid
ZoneScopedN("Draw Grid");
Uint32 num_grid_cells = current_map.height * current_map.width;
if (selected_tile == -1)
num_grid_cells = (current_map.height + 1) * (current_map.width + 1);
wgpuRenderPassEncoderSetPipeline(render_pass_encoder, grid_render_pipeline);
wgpuRenderPassEncoderSetIndexBuffer(render_pass_encoder, grid_index_buffer, WGPUIndexFormat_Uint16, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderSetVertexBuffer(render_pass_encoder, 0, grid_vertex_buffer, 0, WGPU_WHOLE_SIZE);
wgpuRenderPassEncoderDrawIndexed(render_pass_encoder, SDL_arraysize(grid_indices), num_grid_cells, 0, 0, 0);
}
{
ZoneScopedN("ImGui Render");
ImGui::Render();
ImDrawData *draw_data = ImGui::GetDrawData();
ImGui_ImplWGPU_RenderDrawData(draw_data, render_pass_encoder);
}
wgpuRenderPassEncoderEnd(render_pass_encoder);
wgpuRenderPassEncoderRelease(render_pass_encoder);
{
ZoneScopedN("SubmitGPUCommandBuffer");
WGPUCommandBufferDescriptor command_buffer_descriptor = {};
WGPUCommandBuffer command_buffer = wgpuCommandEncoderFinish(command_encoder, &command_buffer_descriptor);
wgpuCommandEncoderRelease(command_encoder);
wgpuQueueSubmit(queue, 1, &command_buffer);
wgpuCommandBufferRelease(command_buffer);
}
{
ZoneScopedN("wgpuSurfacePresent");
wgpuSurfacePresent(surface);
}
wgpuTextureViewRelease(framebuffer_view);
wgpuTextureViewRelease(surface_texture_view);
wgpuTextureRelease(surface_texture.texture);
FrameMark;
}
ImGui_ImplWGPU_Shutdown();
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
return 0;
}
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