Created mesh class

headers/mesh.hpp

@@ -0,0 +1,28 @@
+#ifndef MESH_H
+#define MESH_H
+#include "camera.hpp"
+#include "shader.hpp"
+#include <glm/glm.hpp>
+#include <glm/gtc/quaternion.hpp>
+
+class Mesh {
+public:
+  Mesh(Shader *s, unsigned int VAO, int count);
+  ~Mesh();
+  void draw(Camera *c);
+  void setPosition(glm::vec3 p);
+  void setScale(glm::vec3 s);
+  void setRotation(glm::quat r);
+  void setOwned(bool o);
+  Shader *getShader();
+
+private:
+  bool buffersOwned;
+  int count;
+  unsigned int VAO;
+  Shader *shader;
+  glm::vec3 position; /*0,0,0*/
+  glm::vec3 scale;    /*1,1,1*/
+  glm::quat rotation; /*1,0,0,0*/
+};
+#endif

src/main.cpp

@@ -1,9 +1,10 @@
-#include <glad/glad.h> /*Must be before GLFW*/
 #include "camera.hpp"
+#include <glad/glad.h> /*Must be before GLFW*/
 #include <GLFW/glfw3.h>
 #include <cassert>
 #include <glm/ext/matrix_transform.hpp>
 #include <glm/glm.hpp>
+#include <mesh.hpp>
 #include <shader.hpp>
 #include <shapes.h>
 #include <texture.hpp>
@@ -56,6 +57,9 @@ int main(void) {
   Shader *shaderProgram = new Shader("./shaders/MVPTexNoRGBVert.glsl",
                                      "./shaders/TexNoRGBFrag.glsl");
 
+  Mesh *mesh = new Mesh(shaderProgram, VAO, 36);
+  mesh->setOwned(true);
+
   Texture *texture = new Texture(GL_TEXTURE_2D, "./texture/container.jpg");
   Texture *texture2 = new Texture(GL_TEXTURE_2D, "./texture/brick.jpg");
 
@@ -69,28 +73,21 @@ int main(void) {
     glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-    shaderProgram->use();
-    shaderProgram->setMat4("view", cam->getView());
-    shaderProgram->setMat4("projection", cam->getProjection());
-
-    glBindVertexArray(VAO);
-
     texture->bind(GL_TEXTURE0);
     texture2->bind(GL_TEXTURE1);
     glActiveTexture(GL_TEXTURE0);
     for (unsigned int i = 0; i < 10; i++) {
-      shaderProgram->setInt("tex0", i%2);
-      glm::mat4 model = glm::mat4(1.0f);
-      model = glm::translate(model, cubePositions[i]);
+      mesh->setPosition(cubePositions[i]);
+      mesh->getShader()->setInt("tex0", i % 2);
 
+      glm::mat4 rotate = glm::mat4(1);
       float angle = 20.0f * i;
-      model =
-          glm::rotate(model, glm::radians(angle), glm::vec3(1.0f, 0.3f, 0.5f));
-      model = glm::rotate(model, (float)glfwGetTime() * glm::radians(55.0f),
-                          glm::vec3(1.0f, 0.5f, 0.0f));
-
-      shaderProgram->setMat4("model", model);
-      glDrawArrays(GL_TRIANGLES, 0, 36);
+      rotate =
+          glm::rotate(rotate, glm::radians(angle), glm::vec3(1.0f, 0.3f, 0.5f));
+      rotate = glm::rotate(rotate, (float)glfwGetTime() * glm::radians(55.0f),
+                           glm::vec3(1.0f, 0.5f, 0.0f));
+      mesh->setRotation(glm::quat_cast(rotate));
+      mesh->draw(cam);
     }
 
     glfwSwapBuffers(window);
@@ -113,5 +110,5 @@ void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
   glViewport(0, 0, width, height);
   Camera *cam = (Camera *)glfwGetWindowUserPointer(window);
   if (cam)
-    cam->aspect = (float)width/height;
+    cam->aspect = (float)width / height;
 }

src/mesh.cpp

@@ -0,0 +1,33 @@
+#include "camera.hpp"
+#include "shader.hpp"
+#include <mesh.hpp>
+
+Mesh::Mesh(Shader *s, unsigned int VAO, int count)
+    : buffersOwned(false), count(count), VAO(VAO), shader(s),
+      position(glm::vec3(0)), scale(glm::vec3(1)),
+      rotation(glm::quat(1.0f, 0.0f, 0.0f, 0.0f)) {}
+
+Mesh::~Mesh() {}
+
+void Mesh::draw(Camera *c) {
+  glm::mat4 model = glm::mat4(1);
+
+  shader->use();
+  shader->setMat4("view", c->getView());
+  shader->setMat4("projection", c->getProjection());
+  model = glm::translate(model, position);
+  model = glm::scale(model, scale);
+  model = model * glm::mat4_cast(rotation);
+  shader->setMat4("model", model);
+  glDrawArrays(GL_TRIANGLES, 0, 36);
+}
+
+void Mesh::setPosition(glm::vec3 p) { position = p; }
+
+void Mesh::setScale(glm::vec3 s) { scale = s; }
+
+void Mesh::setRotation(glm::quat r) { rotation = r; }
+
+void Mesh::setOwned(bool o) { buffersOwned = o; }
+
+Shader *Mesh::getShader() { return shader; }