24 void reshape(int x, int y);
25 void keyb(unsigned char key, int x, int y);
26 void keyb_up(unsigned char key, int x, int y);
27 void mouse(int bn, int st, int x, int y);
28 void motion(int x, int y);
30 int win_width, win_height;
34 unsigned int fb[FB_W * FB_H];
36 int mouse_x, mouse_y, mwarp, mbstate[3];
39 int32_t pos[2], angle;
43 #define COLOR_HORIZON 0xcc77ff
44 #define COLOR_ZENITH 0x5588cc
47 int main(int argc, char **argv)
49 glutInit(&argc, argv);
50 glutInitWindowSize(1280, 960);
51 glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
52 glutCreateWindow("voxel landscape test");
54 glutDisplayFunc(display);
56 glutReshapeFunc(reshape);
57 glutKeyboardFunc(keyb);
58 glutKeyboardUpFunc(keyb_up);
60 glutMotionFunc(motion);
79 if(!(vox = vox_open("data/height.png", "data/color.png"))) {
82 vox_framebuf(vox, FB_W, FB_H, fb, -1);
83 vox_proj(vox, 45, 1, 300);
84 vox_fog(vox, 260, COLOR_HORIZON);
86 glfb_setup(FB_W, FB_H, GLFB_RGBA32, FB_W * 4);
95 #define WALK_SPEED 0x40000
96 #define TURN_SPEED 0x100
100 int32_t fwd[2], right[2];
102 if(input & INP_LTURN) angle += TURN_SPEED;
103 if(input & INP_RTURN) angle -= TURN_SPEED;
105 fwd[0] = -SIN(angle);
110 if(input & INP_FWD) {
114 if(input & INP_BACK) {
118 if(input & INP_RIGHT) {
122 if(input & INP_LEFT) {
127 vox_view(vox, pos[0], pos[1], -30, angle);
134 memset(fb, 0, sizeof fb);
137 vox_sky_grad(vox, COLOR_HORIZON, COLOR_ZENITH);
143 assert(glGetError() == GL_NO_ERROR);
147 glutWarpPointer(win_width / 2, win_height / 2);
156 void reshape(int x, int y)
158 glViewport(0, 0, x, y);
164 void keyb(unsigned char key, int x, int y)
194 void keyb_up(unsigned char key, int x, int y)
221 void mouse(int bn, int st, int x, int y)
223 int bidx = bn - GLUT_LEFT_BUTTON;
226 mbstate[bidx] = st == GLUT_DOWN;
231 if(st == GLUT_DOWN) {
232 glutSetCursor(GLUT_CURSOR_NONE);
234 glutSetCursor(GLUT_CURSOR_LEFT_ARROW);
238 void motion(int x, int y)
240 int dx = x - mouse_x;
241 int dy = y - mouse_y;
249 if(!(dx | dy)) return;