156 lines
5.1 KiB
C++
156 lines
5.1 KiB
C++
/********************************************************************************
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* ReactPhysics3D physics library, http://www.reactphysics3d.com *
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* Copyright (c) 2010-2015 Daniel Chappuis *
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*********************************************************************************
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* *
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* This software is provided 'as-is', without any express or implied warranty. *
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* In no event will the authors be held liable for any damages arising from the *
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* use of this software. *
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* *
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* Permission is granted to anyone to use this software for any purpose, *
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* including commercial applications, and to alter it and redistribute it *
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* freely, subject to the following restrictions: *
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* *
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* 1. The origin of this software must not be misrepresented; you must not claim *
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* that you wrote the original software. If you use this software in a *
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* product, an acknowledgment in the product documentation would be *
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* appreciated but is not required. *
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* *
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* 2. Altered source versions must be plainly marked as such, and must not be *
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* misrepresented as being the original software. *
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* *
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* 3. This notice may not be removed or altered from any source distribution. *
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* *
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********************************************************************************/
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// Libraries
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#include "Scene.h"
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#include "../common/Viewer.h"
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// Declarations
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void simulate();
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void render();
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void update();
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void mouseButton(GLFWwindow* window, int button, int action, int mods);
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void mouseMotion(GLFWwindow* window, double x, double y);
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void keyboard(GLFWwindow* window, int key, int scancode, int action, int mods);
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void scroll(GLFWwindow* window, double xAxis, double yAxis);
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void init();
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// Namespaces
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using namespace openglframework;
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// Global variables
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Viewer* viewer;
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Scene* scene;
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// Main function
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int main(int argc, char** argv) {
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// Create and initialize the Viewer
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viewer = new Viewer();
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Vector2 windowsSize = Vector2(800, 600);
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Vector2 windowsPosition = Vector2(100, 100);
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viewer->init(argc, argv, "ReactPhysics3D Examples - Raycast",
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windowsSize, windowsPosition, true);
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// If the shaders and meshes folders are not specified as an argument
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if (argc < 3) {
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std::cerr << "Error : You need to specify the shaders folder as the first argument"
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<< " and the meshes folder as the second argument" << std::endl;
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return 1;
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}
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// Get the path of the shaders folder
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std::string shaderFolderPath(argv[1]);
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std::string meshFolderPath(argv[2]);
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// Register callback methods
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viewer->registerUpdateFunction(update);
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viewer->registerKeyboardCallback(keyboard);
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viewer->registerMouseButtonCallback(mouseButton);
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viewer->registerMouseCursorCallback(mouseMotion);
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viewer->registerScrollingCallback(scroll);
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// Create the scene
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scene = new Scene(viewer, shaderFolderPath, meshFolderPath);
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init();
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viewer->startMainLoop();
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delete viewer;
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delete scene;
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return 0;
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}
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// Update function that is called each frame
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void update() {
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// Take a simulation step
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simulate();
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// Render
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render();
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}
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// Simulate function
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void simulate() {
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// Physics simulation
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scene->simulate();
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viewer->computeFPS();
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}
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// Initialization
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void init() {
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// Define the background color (black)
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glClearColor(0.0, 0.0, 0.0, 1.0);
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}
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// Callback method to receive keyboard events
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void keyboard(GLFWwindow* window, int key, int scancode, int action, int mods) {
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if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS) {
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glfwSetWindowShouldClose(window, GL_TRUE);
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}
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if (key == GLFW_KEY_SPACE && action == GLFW_PRESS) {
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scene->changeBody();
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}
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if (key == GLFW_KEY_N && action == GLFW_PRESS) {
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scene->showHideNormals();
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}
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}
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// Callback method to receive scrolling events
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void scroll(GLFWwindow* window, double xAxis, double yAxis) {
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viewer->scrollingEvent(static_cast<float>(yAxis));
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}
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// Called when a mouse button event occurs
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void mouseButton(GLFWwindow* window, int button, int action, int mods) {
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viewer->mouseButtonEvent(button, action);
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}
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// Called when a mouse motion event occurs
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void mouseMotion(GLFWwindow* window, double x, double y) {
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viewer->mouseMotionEvent(x, y);
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}
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// Display the scene
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void render() {
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// Render the scene
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scene->render();
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// Display the FPS
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viewer->displayGUI();
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// Check the OpenGL errors
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Viewer::checkOpenGLErrors();
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}
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