main.cpp

   1
   2 // For initializing the random number generator.
   3 #include <ctime>
   4 #include <cstdlib>
   5 using std::time;
   6 using std::srand;
   7
   8 #include <string>
   9 #include <vector>
  10 using std::string;
  11 using std::vector;
  12
  13 extern "C" {
  14 #include <GL/freeglut.h>
  15 }
  16
  17 #include <cassert>
  18
  19 #include "output.hpp"
  20 #include "shady.hpp"
  21
  22
  23 static Shady * shady;
  24
  25
  26 static void render() {
  27         shady->render();
  28         glutSwapBuffers();
  29 }
  30
  31 static void resized(int width, int height) {
  32         shady->resized(width, height);
  33 }
  34
  35 static void normalKeyPressed(unsigned char key, int x, int y) {
  36         shady->normalKeyPressed(key, x, y);
  37 }
  38
  39 static void specialKeyPressed(int key, int x, int y) {
  40         shady->specialKeyPressed(key, x, y);
  41 }
  42
  43 static void mouseDragged(int x,int y) {
  44         shady->mouseDragged(x, y);
  45 }
  46
  47 static void mouseClicked(int button, int state, int x, int y) {
  48         shady->mouseClicked(button, state, x, y);
  49 }
  50
  51
  52 int main(int argc, char ** argv) {
  53
  54         OUT(OUT_SHELLCOMMAND(OUT_BRIGHT) "Shady - OpenGL playground" OUT_SHELLCOMMAND(OUT_RESET));
  55
  56         OUT("usage: shady <postprocess>...");
  57
  58         glutInit(&argc, argv);
  59
  60         vector<string> pps;
  61         for(int i = 1; i < argc; i++) {
  62                 pps.push_back(argv[i]);
  63         }
  64
  65         // TODO generalize keybindings
  66         OUT("Movement: " OUT_COLORED(OUT_GREEN, "WASD"));
  67         OUT("Height: " OUT_COLORED(OUT_GREEN, "Q/E"));
  68         OUT("Rotation: " OUT_COLORED(OUT_GREEN, "mouse") " (drag) and " OUT_COLORED(OUT_GREEN, "arrow keys"));
  69         OUT("Radius: " OUT_COLORED(OUT_GREEN, "+/-"));
  70         OUT("Var: " OUT_COLORED(OUT_GREEN, "*") " and " OUT_COLORED(OUT_GREEN, "/"));
  71         OUT("Reset view: " OUT_COLORED(OUT_GREEN, "backspace"));
  72         OUT("New world: " OUT_COLORED(OUT_GREEN, "space"));
  73
  74         // Initialize the random number generator for unique worlds.
  75         srand(time(NULL) / 2);
  76
  77         shady = new Shady(pps);
  78
  79         glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
  80         glutInitWindowSize(1024, 860);
  81
  82         glutCreateWindow("Shady");
  83
  84         if(!shady->init()) {
  85                 ERROR("initializing shady");
  86                 delete shady;
  87                 return 1;
  88         }
  89
  90         // TODO disable key repeating for smoother movement
  91
  92         glutDisplayFunc(render);
  93         glutIdleFunc(render);
  94         glutReshapeFunc(resized);
  95         glutKeyboardFunc(normalKeyPressed);
  96         glutSpecialFunc(specialKeyPressed);
  97         glutMouseFunc(mouseClicked);
  98         glutMotionFunc(mouseDragged);
  99
 100         glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_CONTINUE_EXECUTION);
 101
 102         glutMainLoop();
 103
 104         // Cleanup.
 105         delete shady;
 106
 107         OUT("clean exit");
 108
 109         return 0;
 110 }