New structure

[dragonblocks3d.git] / src / render_engine.cpp

diff --git a/src/render_engine.cpp b/src/render_engine.cpp
new file mode 100644 (file)
index 0000000..eeebd0c
--- /dev/null
+++ b/src/render_engine.cpp
@@ -0,0 +1,71 @@
+#include <stdexcept>
+#include <glm/gtc/matrix_transform.hpp>
+#include "FrustumCull.h"
+#include "camera.hpp"
+#include "input_handler.hpp"
+#include "render_engine.hpp"
+#include "scene.hpp"
+#include "shader_program.hpp"
+#include "window.hpp"
+
+using namespace std;
+using namespace glm;
+using namespace dragonblocks;
+
+void RenderEngine::render(double dtime)
+{
+       glClearColor(sky.r, sky.g, sky.b, 1.0); CHECKERR
+       
+       /*
+               glEnable(GL_CULL_FACE); CHECKERR
+               glCullFace(GL_BACK); CHECKERR
+               glFrontFace(GL_CW); CHECKERR
+       */
+       
+       glEnable(GL_DEPTH_TEST); CHECKERR
+       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); CHECKERR
+       
+
+       dvec2 window_size = window->getSize();
+       mat4 projection_matrix = perspective(radians(fov), window_size.x / window_size.y, 0.01, render_distance);
+       
+       mat4 view_matrix = camera->getViewMatrix();
+       
+       Frustum frustum(projection_matrix * view_matrix);
+       
+       scene->render(dtime, &frustum, projection_matrix, view_matrix, sky);
+       
+       window->swapBuffers(); CHECKERR
+       glfwPollEvents(); CHECKERR
+}
+
+bool RenderEngine::running()
+{
+       return ! window->shouldClose();
+}
+
+RenderEngine::RenderEngine()
+{
+       if (! glfwInit()) {
+               throw runtime_error("Failed to initialize GLFW");
+       }
+       glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+       glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+       glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+       
+       window = Window::create(this);
+       camera = new Camera;
+       scene = new Scene;
+       
+       GLenum glew_init_err = glewInit();
+       if (glew_init_err != GLEW_OK) {
+               throw runtime_error("Failed to initialize GLEW");
+       }
+}
+
+RenderEngine::~RenderEngine()
+{
+       delete window;
+       delete camera;
+       delete scene;
+}