diff --git a/assets/shader/basic_pixel_shader.hlsl b/assets/shader/basic_pixel_shader.hlsl
index 04b6293..bbd1db3 100644
--- a/assets/shader/basic_pixel_shader.hlsl
+++ b/assets/shader/basic_pixel_shader.hlsl
@@ -1,13 +1,14 @@
 struct PixelShaderInput {
 	float4 pos : SV_POSITION;
 	float4 uvst : COORDINATES;
+	uint tile_type : TILE_TYPE;
 };
 
 struct PixelShaderOutput {
 	float4 color : SV_TARGET;
 };
 
-Texture2D<float4> tex1 : register(t0);
+Texture2DArray<float4> tex1 : register(t0);
 
 SamplerState texture_sampler : register(s0);
 
@@ -15,7 +16,7 @@ PixelShaderOutput main(PixelShaderInput input) {
 	PixelShaderOutput output;
 
 #if 1
-	output.color = tex1.Sample(texture_sampler, input.uvst.xy);
+	output.color = tex1.Sample(texture_sampler, float3(input.uvst.xy, input.tile_type));
 #else
 	output.color = float4(1, 0, 1, 1);
 #endif
diff --git a/assets/shader/basic_vertex_shader.hlsl b/assets/shader/basic_vertex_shader.hlsl
index 88bd34e..c536c2b 100644
--- a/assets/shader/basic_vertex_shader.hlsl
+++ b/assets/shader/basic_vertex_shader.hlsl
@@ -6,16 +6,16 @@ struct VertexShaderInput {
 
 	// Per Instance
 	float4 pos_size : INSTANCE_POSITION_SIZE;
-
+	uint tile_type : TILE_TYPE;
 };
 
 struct VertexShaderOutput {
 	float4 pos : SV_POSITION;
 	float4 uvst : COORDINATES;
+	uint tile_type : TILE_TYPE;
 };
 
 
-
 VertexShaderOutput main(VertexShaderInput input) {
 	VertexShaderOutput output;
 
@@ -47,6 +47,7 @@ VertexShaderOutput main(VertexShaderInput input) {
 	output.pos.zw = float2(0, 1);
 
 	output.uvst = input.uvst;
+	output.tile_type = input.tile_type;
 
 	return output;
 }
\ No newline at end of file
diff --git a/assets/ss_hg_vorlage.tga b/assets/ss_hg_vorlage.tga
deleted file mode 100644
index 94512e0..0000000
Binary files a/assets/ss_hg_vorlage.tga and /dev/null differ
diff --git a/assets/tile_tall_grass.tga b/assets/tile_tall_grass.tga
index 5dcc32f..9c2ea8d 100644
Binary files a/assets/tile_tall_grass.tga and b/assets/tile_tall_grass.tga differ
diff --git a/assets/tile_water.tga b/assets/tile_water.tga
index 3fdaa44..39c089e 100644
Binary files a/assets/tile_water.tga and b/assets/tile_water.tga differ
diff --git a/assets/tile_water_2.tga b/assets/tile_water_2.tga
new file mode 100644
index 0000000..b7c5f2d
Binary files /dev/null and b/assets/tile_water_2.tga differ
diff --git a/bin/pokemon.exe b/bin/pokemon.exe
index a519eca..b0fefca 100644
Binary files a/bin/pokemon.exe and b/bin/pokemon.exe differ
diff --git a/bin/pokemon.pdb b/bin/pokemon.pdb
index 691aec5..c78d54c 100644
Binary files a/bin/pokemon.pdb and b/bin/pokemon.pdb differ
diff --git a/pokemon.vcxproj b/pokemon.vcxproj
index 28b34c6..02cc5e1 100644
--- a/pokemon.vcxproj
+++ b/pokemon.vcxproj
@@ -121,6 +121,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\create_window.h" />
+    <ClInclude Include="src\defer.h" />
     <ClInclude Include="src\load_entire_file.h" />
     <ClInclude Include="src\load_tga_file.h" />
     <ClInclude Include="src\log.h" />
diff --git a/pokemon.vcxproj.filters b/pokemon.vcxproj.filters
index 5d3cdf8..26c345c 100644
--- a/pokemon.vcxproj.filters
+++ b/pokemon.vcxproj.filters
@@ -50,5 +50,8 @@
     <ClInclude Include="src\load_tga_file.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="src\defer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/defer.h b/src/defer.h
new file mode 100644
index 0000000..419e734
--- /dev/null
+++ b/src/defer.h
@@ -0,0 +1,16 @@
+#pragma once
+template <typename F>
+struct _defer {
+	F f;
+	_defer(F f) : f(f) {};
+	~_defer() { f(); };
+};
+
+template <typename F>
+_defer<F> MakeDefer(F f) {
+	return _defer<F>(f);
+}
+
+#define STRING_JOIN(a, b) _STRING_JOIN(a, b)
+#define _STRING_JOIN(a, b) a ## b
+#define defer(x) auto STRING_JOIN(_defer_, __LINE__) = MakeDefer([=](){x;})
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 94bdde3..c22b759 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,6 +11,7 @@
 #include <stdint.h>
 #include <math.h>
 
+#include "defer.h"
 #include "create_window.h"
 #include "log.h"
 #include "m_string.h"
@@ -50,6 +51,9 @@ ID3D11VertexShader* vertex_shader;
 ID3DBlob* pixel_shader_code;
 ID3D11PixelShader* pixel_shader;
 
+int16 window_width;
+int16 window_height;
+
 bool Running = true;
 //
 
@@ -75,6 +79,7 @@ uint16 indices[] = {
 
 struct Instance {
 	V4 pos_size;
+	uint32 tile_type;
 };
 
 Instance tiles_instances[view_width * view_height] = {
@@ -123,6 +128,8 @@ LRESULT WindowMsgs(HWND Window, UINT Message, WPARAM wParam, LPARAM lParam) {
 
 	switch (Message) {
 	case WM_SIZE: {
+		window_width = (int16)(lParam & 0xffff);
+		window_height = (int16)((lParam & 0xffff0000) >> 16);
 		if(swap_chain)
 			swap_chain->ResizeBuffers(0, 0, 0, DXGI_FORMAT_UNKNOWN, 0);
 		printf("size\n");
@@ -142,6 +149,16 @@ LRESULT WindowMsgs(HWND Window, UINT Message, WPARAM wParam, LPARAM lParam) {
 		printf("app\n");
 	} break;
 
+	case WM_LBUTTONDOWN: {
+		int16 mouse_x = (int16)(lParam & 0xffff);
+		int16 mouse_y = (int16)((lParam & 0xffff0000) >> 16); 
+		float tile_width = window_width / (float) view_width;
+		float tile_height = window_height / (float) view_height;
+		int tile_x = mouse_x / tile_width;
+		int tile_y = mouse_y / tile_height;
+		tiles_instances[tile_x + view_width * tile_y].tile_type = (tiles_instances[tile_x + view_width * tile_y].tile_type + 1) % 3;
+
+	} break;
 
 	case WM_KEYDOWN: {
 		if (!(lParam & (1 << 30))) {
@@ -287,6 +304,7 @@ bool init_directx11(HWND Window) {
 		{ "VERTEX_POSITION", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0 },
 		{ "COORDINATES", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0, 16, D3D11_INPUT_PER_VERTEX_DATA, 0 },
 		{ "INSTANCE_POSITION_SIZE", 0, DXGI_FORMAT_R32G32B32A32_FLOAT, 1, 0, D3D11_INPUT_PER_INSTANCE_DATA, 1 },
+		{ "TILE_TYPE", 0, DXGI_FORMAT_R32_UINT, 1, 16, D3D11_INPUT_PER_INSTANCE_DATA, 1},
 	};
 
 	if (device->CreateInputLayout(input_element_desc, sizeof(input_element_desc) / sizeof(*input_element_desc), vertex_shader_code->GetBufferPointer(), vertex_shader_code->GetBufferSize(), &input_layout)) {
@@ -360,6 +378,70 @@ bool init_directx11(HWND Window) {
 	return 0;
 }
 
+// Textur Array erzeugen
+ID3D11ShaderResourceView* create_shader_texture_array(int num_textures, char** bmp_texture_paths, String debug_name) {
+	assert(num_textures >= 1);
+
+	BMP_Texture* bmp_textures = (BMP_Texture*) malloc(num_textures * sizeof(BMP_Texture));
+	defer(free(bmp_textures));
+
+	for (int i = 0; i < num_textures; i++) {
+		bmp_textures[i] = load_tga_file(bmp_texture_paths[i]);
+		if (!bmp_textures[i].pixel) {
+			log_error("Loading texture %s has failed. ", bmp_texture_paths[i]);
+			return 0;
+		}
+	}
+
+	defer(for (int i = 0; i < num_textures; i++) { free(bmp_textures[i].pixel); });
+
+	for (int i = 1; i < num_textures; i++) {
+		assert(bmp_textures[i].bmp_width == bmp_textures[i - 1].bmp_width);
+		assert(bmp_textures[i].bmp_height == bmp_textures[i - 1].bmp_height);
+	}
+
+	D3D11_TEXTURE2D_DESC texture_desc = {
+		.Width = (UINT) bmp_textures[0].bmp_width,
+		.Height = (UINT) bmp_textures[0].bmp_height,
+		.MipLevels = 1,
+		.ArraySize = (UINT) num_textures,
+		.Format = DXGI_FORMAT_B8G8R8A8_UNORM,
+		.SampleDesc = {.Count = 1, .Quality = 0},
+		.Usage = D3D11_USAGE_DEFAULT,
+		.BindFlags = D3D11_BIND_SHADER_RESOURCE,
+		.CPUAccessFlags = 0,
+		.MiscFlags = 0,
+	};
+
+	D3D11_SUBRESOURCE_DATA* initial_data = (D3D11_SUBRESOURCE_DATA*) malloc(num_textures * sizeof(D3D11_SUBRESOURCE_DATA));
+	defer(free(initial_data));
+
+	for (int i = 0; i < num_textures; i++) {
+		initial_data[i] = {
+			.pSysMem = bmp_textures[i].pixel,
+			.SysMemPitch = (UINT)bmp_textures[i].bmp_width * 4,
+		};
+	}
+
+	ID3D11Texture2D* texture;
+	if ((hresult = device->CreateTexture2D(&texture_desc, initial_data, &texture)) != S_OK) {
+		log_error("CreateTexture2D has failed. %ld", hresult);
+		return 0;
+	}
+	DX11SetDebugName(texture, debug_name);
+
+	ID3D11ShaderResourceView* resource_view;
+	if ((hresult = device->CreateShaderResourceView(texture, 0, &resource_view)) != S_OK) {
+		log_error("CreateShaderResourceView failed. %ld", hresult);
+		return 0;
+	}
+	DX11SetDebugName(resource_view, debug_name);
+
+	return resource_view;
+}
+
+
+// 1 Texture erzeugen
 ID3D11ShaderResourceView* create_shader_texture(char* bmp_texture_path) {
 	BMP_Texture bmp_texture = load_tga_file(bmp_texture_path);
 
@@ -420,8 +502,9 @@ int main() {
 	if (init_directx11(Window))
 		return 1;
 
+	// Eine Textur erzeugen
 	ID3D11ShaderResourceView* tile_texture = 0;
-	if (!(tile_texture = create_shader_texture("../assets/tile_grass_1.tga"))) {
+	if (!(tile_texture = create_shader_texture("../assets/tile_grass_2.tga"))) {
 		log_error("CreateShaderTexture has failed.");
 		return 1;
 	}
@@ -432,6 +515,15 @@ int main() {
 		return 1;
 	}
 
+	//mehrere Texturen erzeugen
+	char* tile_texture_array[] = { "../assets/tile_grass_2.tga" , "../assets/tile_dirt.tga" , "../assets/tile_water.tga" };
+	if (!(tile_texture = create_shader_texture_array(3, tile_texture_array, "tile_textures"))) {
+		log_error("CreateShaderTextrueArray has failed.");
+			return 1;
+	}
+
+	tiles_instances[17].tile_type = 1;
+
 	MSG Message;
 	while (Running) {
 		while (PeekMessage(&Message, 0, 0, 0, PM_REMOVE)) {
@@ -442,6 +534,12 @@ int main() {
 			TranslateMessage(&Message);
 			DispatchMessage(&Message);
 		}
+		//Grafikkarte updaten
+		D3D11_MAPPED_SUBRESOURCE mapped_subressource;
+		devicecontext->Map(tiles_instance_buffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_subressource);
+		memcpy(mapped_subressource.pData, tiles_instances, sizeof(tiles_instances));
+		devicecontext->Unmap(tiles_instance_buffer, 0);
+
 		devicecontext->OMSetRenderTargets(1, &render_target_view, 0);
 		V4 clear_color = { 0, 0, 0, 1 };
 		devicecontext->ClearRenderTargetView(render_target_view, clear_color.E);