Add sprite renderer and sprite shaders

grk/project/SpriteRenderer.cpp

@@ -0,0 +1,96 @@
+#include "SpriteRenderer.h"
+
+Core::SpriteRenderer::SpriteRenderer()
+{
+    this->initRenderData();
+}
+
+Core::SpriteRenderer::~SpriteRenderer()
+{
+    glDeleteVertexArrays(1, &this ->VAO);
+    glDeleteBuffers(1, &this->VBO);
+    glDeleteBuffers(1, &this->EBO);
+}
+void Core::SpriteRenderer::DrawSprite(GLuint spriteTexture, const glm::mat4 modelMatrix, GLuint program) {
+
+	Spaceship* spaceship = Spaceship::getInstance();
+
+	// Pobierz pozycjê kamery
+	glm::vec3 cameraPosition = spaceship->cameraPos;
+
+	// Twórz macierz lookAt miêdzy kwadratem a kamer¹
+	glm::mat4 billboardModelMatrix = glm::lookAt(glm::vec3(modelMatrix[3]), cameraPosition, glm::vec3(0.0f, 1.0f, 0.0f));
+
+	// Reset the rotation part of the matrix to make it face the camera
+	//billboardModelMatrix[0][0] = 1.0f;
+	//billboardModelMatrix[0][1] = 0.0f;
+	//billboardModelMatrix[0][2] = 0.0f;
+
+	billboardModelMatrix[1][0] = 0.0f;
+	billboardModelMatrix[1][1] = 1.0f;
+	billboardModelMatrix[1][2] = 0.0f;
+
+	billboardModelMatrix[2][0] = 0.0f;
+	billboardModelMatrix[2][1] = 0.0f;
+	billboardModelMatrix[2][2] = 1.0f;
+
+	// Utwórz macierz widoku-projekcji
+	glm::mat4 viewProjectionMatrix = Core::createPerspectiveMatrix() * spaceship->createCameraMatrix();
+
+	// Kombinuj macierze transformacji
+	glm::mat4 transformation = viewProjectionMatrix * billboardModelMatrix * modelMatrix;
+
+	// Przeka¿ macierze do shadera
+	glUniformMatrix4fv(glGetUniformLocation(program, "transformation"), 1, GL_FALSE, glm::value_ptr(transformation));
+	glUniformMatrix4fv(glGetUniformLocation(program, "modelMatrix"), 1, GL_FALSE, glm::value_ptr(billboardModelMatrix));
+	Core::SetActiveTexture(spriteTexture, "colorTexture", program, 0);
+
+	glBindVertexArray(this->VAO);
+	glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+	glBindVertexArray(0);
+}
+
+void Core::SpriteRenderer::initRenderData()
+{
+	// Definicja wierzcho³ków kwadratu
+	float vertices[] = {
+		// Postions						//colors		// texture coordiantes
+		-0.5f, -0.5f, 0.0f,		1.0f, 0.0f, 0.0f,	0.0f, 0.0f, // Left down
+		-0.5f, 0.5f, 0.0f,		0.0f, 1.0f, 0.0f,	0.0f,1.0f, // Left up
+		 0.5f, 0.5f, 0.0f,		0.0f, 0.0f, 1.0f,	1.0f, 1.0f,// Right up
+		 0.5f, -0.5f, 0.0f,		1.0f, 1.0f, 1.0f,   1.0f,0.0f// Right down
+	};
+
+	// Definicja indeksów wierzcho³ków dla kwadratu
+	unsigned int indices[] = {
+		0, 2, 1, // Upper triangle
+		0, 3, 2  // Lower triangle
+	};
+	
+	glGenVertexArrays(1, &this->VAO);
+	glGenBuffers(1, &this->VBO);
+	glGenBuffers(1, &this->EBO);
+
+	glBindVertexArray(this->VAO);
+
+	// Wype³nij bufor wierzcho³ków
+	glBindBuffer(GL_ARRAY_BUFFER, this->VBO);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+
+	// Wype³nij bufor indeksów
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->EBO);
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
+
+	glEnableVertexAttribArray(0);
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)0);
+
+	glEnableVertexAttribArray(1);
+	// Konfiguracja atrybutu koordynatow kolorow
+	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(3 * sizeof(float)));
+
+	glEnableVertexAttribArray(2);
+	// Konfiguracja atrybutu koordynatow tekstury
+	glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(6 * sizeof(float)));
+
+	glBindVertexArray(0);
+}

grk/project/SpriteRenderer.h

@@ -0,0 +1,27 @@
+#include "src/Render_Utils.h"
+#include "src/Texture.h"
+#include "Spaceship.h"
+#include "./Enemy.h"
+
+#pragma once
+namespace Core {
+	class SpriteRenderer
+	{
+    public:
+        SpriteRenderer();
+        ~SpriteRenderer();
+        void DrawSprite(GLuint spriteTexture, const glm::mat4 modelMatrix, GLuint program);
+
+    private:
+
+        unsigned int VAO;
+        unsigned int VBO;
+        unsigned int EBO;
+        // Initializes and configures the quad's buffer and vertex attributes
+        void initRenderData();
+
+
+
+	};
+}
+

grk/project/grk-project.vcxproj

@@ -13,6 +13,7 @@
   <ItemGroup>
     <ClCompile Include="GameObject.cpp" />
     <ClCompile Include="Planet.cpp" />
+    <ClCompile Include="SpriteRenderer.cpp" />
     <ClCompile Include="src\Box.cpp" />
     <ClCompile Include="src\Camera.cpp" />
     <ClCompile Include="src\main.cpp" />
@@ -26,10 +27,12 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Bullet.h" />
+    <ClInclude Include="Enemy.h" />
     <ClInclude Include="GameObject.h" />
     <ClInclude Include="GameUtils.h" />
     <ClInclude Include="Planet.h" />
     <ClInclude Include="Spaceship.h" />
+    <ClInclude Include="SpriteRenderer.h" />
     <ClInclude Include="src\Camera.h" />
     <ClInclude Include="src\ex_9_1.hpp" />
     <ClInclude Include="src\objload.h" />
@@ -53,6 +56,8 @@
     <None Include="shaders\shader_8_sun.vert" />
     <None Include="shaders\shader_skybox.frag" />
     <None Include="shaders\shader_skybox.vert" />
+    <None Include="shaders\shader_sprite.frag" />
+    <None Include="shaders\shader_sprite.vert" />
     <None Include="shaders\test.frag" />
     <None Include="shaders\test.vert" />
   </ItemGroup>

grk/project/grk-project.vcxproj.filters

@@ -57,6 +57,9 @@
     <ClCompile Include="Planet.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="SpriteRenderer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\objload.h">
@@ -113,6 +116,12 @@
     <ClInclude Include="Bullet.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="Enemy.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="SpriteRenderer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="shaders\shader_8_sun.vert">
@@ -139,5 +148,13 @@
     <None Include="shaders\shader_skybox.vert">
       <Filter>Shader Files</Filter>
     </None>
+    <None Include="fireball.frag" />
+    <None Include="fireball.vert" />
+    <None Include="shaders\shader_sprite.frag">
+      <Filter>Shader Files</Filter>
+    </None>
+    <None Include="shaders\shader_sprite.vert">
+      <Filter>Shader Files</Filter>
+    </None>
   </ItemGroup>
 </Project>

grk/project/shaders/shader_sprite.frag

@@ -0,0 +1,16 @@
+#version 430 core
+
+uniform sampler2D colorTexture;
+
+in vec3 worldPos;
+in vec2 texCoord;
+in vec3 color;
+
+out vec4 outColor;
+void main()
+{
+
+	outColor = texture(colorTexture, texCoord);
+	outColor *= vec4(color, 1.0);
+
+}

grk/project/shaders/shader_sprite.vert

@@ -0,0 +1,21 @@
+#version 430 core
+
+layout(location = 0) in vec3 vertexPosition;
+layout(location = 1) in vec3 aColor;
+layout(location = 2) in vec2 vertexTexCoord;
+
+uniform mat4 transformation;
+uniform mat4 modelMatrix;	
+
+out vec3 worldPos;
+out vec2 texCoord;
+out vec3 color;
+
+void main()
+{
+	worldPos = (modelMatrix* vec4(vertexPosition,1)).xyz;
+	gl_Position = transformation * vec4(worldPos, 1.0);
+	texCoord = vertexTexCoord;
+	texCoord.y = 1.0 - texCoord.y; // so that it is turned correctly
+	color = aColor;
+}