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nuclear@1
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1 #include <stdio.h>
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nuclear@1
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2 #include <stdlib.h>
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nuclear@1
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3 #include <assert.h>
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4 #include "opengl.h"
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5 #include "level.h"
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6 #include "camera.h"
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7
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8 void disp();
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9 void reshape(int x, int y);
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10 void keyb(unsigned char key, int x, int y);
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11 void mouse(int bn, int state, int x, int y);
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12 void motion(int x, int y);
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13
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14 static Level *level;
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15 static OrbitCamera cam;
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16
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17 int main(int argc, char **argv)
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18 {
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19 glutInit(&argc, argv);
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20 glutInitWindowSize(800, 600);
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21 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | GLUT_MULTISAMPLE);
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22 glutCreateWindow("prototype");
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23
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24 glutDisplayFunc(disp);
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25 glutReshapeFunc(reshape);
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26 glutKeyboardFunc(keyb);
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27 glutMouseFunc(mouse);
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28 glutMotionFunc(motion);
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29
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30 glewInit();
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31
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32 glEnable(GL_LIGHTING);
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33 glEnable(GL_LIGHT0);
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34 float ldir[] = {-1, 1, 2, 0};
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35 glLightfv(GL_LIGHT0, GL_POSITION, ldir);
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36 glEnable(GL_NORMALIZE);
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37
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38 glEnable(GL_DEPTH_TEST);
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39 glEnable(GL_CULL_FACE);
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40 glEnable(GL_MULTISAMPLE);
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41
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42 level = new Level;
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43 if(!level->load("foobar")) {
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44 return 1;
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45 }
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46
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47 glutMainLoop();
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48 }
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49
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50 void disp()
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51 {
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52 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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53
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54 glMatrixMode(GL_MODELVIEW);
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55 glLoadIdentity();
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56 cam.use();
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57
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58 level->draw();
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59
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60 glutSwapBuffers();
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61 assert(glGetError() == GL_NO_ERROR);
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62 }
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63
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64 void reshape(int x, int y)
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65 {
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66 glViewport(0, 0, x, y);
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67 glMatrixMode(GL_PROJECTION);
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68 glLoadIdentity();
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69 gluPerspective(45.0, (float)x / (float)y, 1.0, 1000.0);
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70 }
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71
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72 void keyb(unsigned char key, int x, int y)
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73 {
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74 switch(key) {
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75 case 27:
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76 exit(0);
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77 }
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78 }
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79
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80 static int prev_x, prev_y;
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81 static bool bnstate[32];
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82
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83 void mouse(int bn, int state, int x, int y)
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84 {
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85 prev_x = x;
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86 prev_y = y;
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87 bnstate[bn - GLUT_LEFT_BUTTON] = state == GLUT_DOWN;
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88 }
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89
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90 void motion(int x, int y)
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91 {
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92 int dx = x - prev_x;
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93 int dy = y - prev_y;
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94 prev_x = x;
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95 prev_y = y;
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96
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97 if(bnstate[0]) {
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98 cam.input_rotate(dx * 0.01, dy * 0.01, 0);
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99 glutPostRedisplay();
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100 }
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101 if(bnstate[2]) {
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102 cam.input_zoom(dy * 0.1);
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103 glutPostRedisplay();
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104 }
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105 }
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