Stuff

headers/renderer.hpp

@@ -1,7 +1,9 @@
 #pragma once
 
 #include <glm/fwd.hpp>
+#include <glm/glm.hpp>
 #include <vector>
+
 #include "shaders.hpp"
 #include "textures.hpp"
 
@@ -12,21 +14,33 @@
 #define VERT_SHADER_SRC_FILE "shaders/vertex.glsl"
 #define FRAG_SHADER_SRC_FILE "shaders/fragment.glsl"
 
-#define RUSTY_METAL_TEXTURE "assets/textures/rusty_metal.jpg"
+#define DEFAULT_FOV 45.0f
+#define NEAR_PLANE 0.1f
+#define FAR_PLANE 100.0f
 
 namespace Renderer {
-	class RenderObject {};
+	class RenderObject {
+		public:
+			RenderObject();
+			void render(GLFWwindow* win, glm::mat4 cameraTransform, glm::mat4 projectionTransform);
+		private:
+			std::vector<float> verts;
+			std::vector<unsigned int> indices;
+	};
 
 	class Renderer3D {
 		public:
-			Renderer3D();
-			Renderer3D(std::vector<RenderObject> ROs);
+			Renderer3D(GLFWwindow* win);
+			Renderer3D(GLFWwindow* win, std::vector<RenderObject> ROs);
 
 			void setCamera(glm::vec3 pos);
 			void setFOV(float deg);
-			void render(GLFWwindow* win);
+			void render();
 		private:
-			std::vector<RenderObject> RenderObjects;
+			std::vector<RenderObject> renderObjects = std::vector<RenderObject>();
+			GLFWwindow* window;
+			glm::mat4 cameraTransform = glm::mat4(1.0f);
+			glm::mat4 projectionTransform = glm::mat4(1.0f);
 	};
 
 	class Obj2D {

src/renderer.cpp

@@ -2,19 +2,45 @@
 #include <glm/glm.hpp>
 #include <glm/gtc/matrix_transform.hpp>
 
+#include "GLFW/glfw3.h"
 #include "renderer.hpp"
 #include "shaders.hpp"
 
 namespace Renderer {
 
-	Renderer3D::Renderer3D() {
-		// TODO: Make more OOP
+	// Renderer3D
+	Renderer3D::Renderer3D(GLFWwindow* win) {
+		window = win;	
+
+		setFOV(DEFAULT_FOV);
+	}
+
+	Renderer3D::Renderer3D(GLFWwindow* win, std::vector<RenderObject> ROs) : Renderer3D(win) {
+		renderObjects = ROs;
+	}
+
+	void Renderer3D::setFOV(float fov) {
+		int width, height;
+		glfwGetWindowSize(window, &width, &height);
+		projectionTransform = glm::perspective(glm::radians(fov), (float)width / (float)height, NEAR_PLANE, FAR_PLANE);
+	}
+
+	void Renderer3D::setCamera(glm::vec3 pos) {
+		cameraTransform = glm::translate(cameraTransform, pos); 
 	}
 
-	Renderer3D::Renderer3D(std::vector<RenderObject> ROs) : Renderer3D() {
-		RenderObjects = ROs;
+	void Renderer3D::render() {
+		for ( RenderObject ro: renderObjects ) 
+			ro.render(window, cameraTransform, projectionTransform);
 	}
 
+	// RenderObject
+	RenderObject::RenderObject() {
+
+	}
+
+	void RenderObject::render(GLFWwindow* win, glm::mat4 cameraTransform, glm::mat4 projectionTransform) {}
+
 	void Obj2D::transform(glm::mat4 T) {
 		shader.setMat4("model", T);
 	}
@@ -49,20 +75,17 @@ namespace Renderer {
 	Obj2D::Obj2D(unsigned int indices[], unsigned int icount, float verts[], unsigned int vcount) 
 		: shader(VERT_SHADER_SRC_FILE, FRAG_SHADER_SRC_FILE) {
 
-		// Vertex buffer object
-		glGenBuffers(1, &VBO);
-
 		// Vertex Array Object
 		glGenVertexArrays(1, &VAO); // gen the VAO
 		glBindVertexArray(VAO); // bind it
 
-		// Copy verts into buffer
+		// Copy the verts into the buffer
+		glGenBuffers(1, &VBO);
 		glBindBuffer(GL_ARRAY_BUFFER, VBO);
 		glBufferData(GL_ARRAY_BUFFER, vcount, verts, GL_DYNAMIC_DRAW); // for moving stuff
-		//glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
 
+		// Copy the indices for the verts into another buffer
 		glGenBuffers(1, &EBO);
-
 		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
 		glBufferData(GL_ELEMENT_ARRAY_BUFFER, icount, indices, GL_STATIC_DRAW);