4 #include <cgmath/cgmath.h>
11 KEY_F1 = GLUT_KEY_F1 | 0x100,
12 KEY_F2 = GLUT_KEY_F2 | 0x100,
13 KEY_F3 = GLUT_KEY_F3 | 0x100,
14 KEY_F4 = GLUT_KEY_F4 | 0x100,
15 KEY_F5 = GLUT_KEY_F5 | 0x100,
16 KEY_F6 = GLUT_KEY_F6 | 0x100,
17 KEY_F7 = GLUT_KEY_F7 | 0x100,
18 KEY_F8 = GLUT_KEY_F8 | 0x100,
19 KEY_F9 = GLUT_KEY_F9 | 0x100,
20 KEY_F10 = GLUT_KEY_F10 | 0x100,
21 KEY_F11 = GLUT_KEY_F11 | 0x100,
22 KEY_F12 = GLUT_KEY_F12 | 0x100,
23 KEY_LEFT = GLUT_KEY_LEFT | 0x100,
24 KEY_UP = GLUT_KEY_UP | 0x100,
25 KEY_RIGHT = GLUT_KEY_RIGHT | 0x100,
26 KEY_DOWN = GLUT_KEY_DOWN | 0x100,
27 KEY_PGUP = GLUT_KEY_PAGE_UP | 0x100,
28 KEY_PGDN = GLUT_KEY_PAGE_DOWN | 0x100,
29 KEY_HOME = GLUT_KEY_HOME | 0x100,
30 KEY_END = GLUT_KEY_END | 0x100,
31 KEY_INS = GLUT_KEY_INSERT | 0x100
34 enum { INP_FWD, INP_BACK, INP_RIGHT, INP_LEFT, INP_FIRE, NUM_INPUTS };
36 static int init(void);
37 static void cleanup(void);
38 static void display(void);
39 static void idle(void);
40 static void reshape(int x, int y);
41 static void keydown(unsigned char key, int x, int y);
42 static void keyup(unsigned char key, int x, int y);
43 static void skeydown(int key, int x, int y);
44 static void skeyup(int key, int x, int y);
45 static void mouse(int bn, int st, int x, int y);
46 static void motion(int x, int y);
47 static unsigned int nextpow2(unsigned int x);
49 static long start_time;
51 static float cam_theta, cam_phi;
52 static cgm_vec3 cam_pos = {0, 1.6, 0};
54 static int mouse_x, mouse_y;
55 static int bnstate[8];
57 static int inpstate[NUM_INPUTS];
59 static int keymap[NUM_INPUTS][2] = {
67 static unsigned int tex;
68 static int tex_width, tex_height;
69 static int tex_intfmt;
70 static float tex_xform[16];
73 int main(int argc, char **argv)
75 glutInit(&argc, argv);
77 if(init_options(argc, argv) == -1) {
81 glutInitWindowSize(opt.width, opt.height);
82 glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
83 glutCreateWindow("cyberay");
85 glutDisplayFunc(display);
87 glutReshapeFunc(reshape);
88 glutKeyboardFunc(keydown);
89 glutKeyboardUpFunc(keyup);
90 glutSpecialFunc(skeydown);
91 glutSpecialUpFunc(skeyup);
93 glutMotionFunc(motion);
94 glutPassiveMotionFunc(motion);
105 static int init(void)
107 if(!(tpool = tpool_create(0))) {
108 fprintf(stderr, "failed to create thread pool\n");
112 glEnable(GL_CULL_FACE);
115 glGenTextures(1, &tex);
116 glBindTexture(GL_TEXTURE_2D, tex);
117 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
118 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
120 tex_intfmt = GL_RGB16F;
122 if(load_level(&lvl, "data/test.lvl") == -1) {
126 start_time = glutGet(GLUT_ELAPSED_TIME);
130 static void cleanup(void)
134 glDeleteTextures(1, &tex);
136 tpool_destroy(tpool);
139 #define WALK_SPEED 3.0f
140 static void update(void)
142 static unsigned int prev_upd;
144 float dt, vfwd, vright;
146 msec = glutGet(GLUT_ELAPSED_TIME) - start_time;
147 dt = (float)(msec - prev_upd) / 1000.0f;
152 if(inpstate[INP_FWD]) {
153 vfwd -= WALK_SPEED * dt;
155 if(inpstate[INP_BACK]) {
156 vfwd += WALK_SPEED * dt;
158 if(inpstate[INP_RIGHT]) {
159 vright += WALK_SPEED * dt;
161 if(inpstate[INP_LEFT]) {
162 vright -= WALK_SPEED * dt;
165 cam_pos.x += cos(cam_theta) * vright + sin(cam_theta) * vfwd;
166 cam_pos.z += -sin(cam_theta) * vright + cos(cam_theta) * vfwd;
168 cgm_midentity(view_xform);
169 cgm_mrotate_x(view_xform, cam_phi);
170 cgm_mrotate_y(view_xform, cam_theta);
171 cgm_mtranslate(view_xform, cam_pos.x, cam_pos.y, cam_pos.z);
174 static void display(void)
179 glBindTexture(GL_TEXTURE_2D, tex);
180 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, fb.width, fb.height, GL_RGB, GL_FLOAT, fb.pixels);
181 glEnable(GL_TEXTURE_2D);
195 assert(glGetError() == GL_NO_ERROR);
198 static void idle(void)
203 static void reshape(int x, int y)
205 glViewport(0, 0, x, y);
207 if(x > tex_width || y > tex_height) {
208 tex_width = nextpow2(x);
209 tex_height = nextpow2(y);
211 glBindTexture(GL_TEXTURE_2D, tex);
212 glTexImage2D(GL_TEXTURE_2D, 0, tex_intfmt, tex_width, tex_height, 0, GL_RGB, GL_FLOAT, 0);
215 cgm_mscaling(tex_xform, (float)x / tex_width, (float)y / tex_height, 1.0f);
217 glMatrixMode(GL_TEXTURE);
218 glLoadMatrixf(tex_xform);
221 static void keyb(int key, int press)
225 for(i=0; i<NUM_INPUTS; i++) {
226 if(keymap[i][0] == key || keymap[i][1] == key) {
232 static void keydown(unsigned char key, int x, int y)
234 if(key == 27) exit(0);
238 static void keyup(unsigned char key, int x, int y)
243 static void skeydown(int key, int x, int y)
245 keyb(key | 0x100, 1);
248 static void skeyup(int key, int x, int y)
250 keyb(key | 0x100, 0);
253 static void mouse(int bn, int st, int x, int y)
257 bnstate[bn - GLUT_LEFT_BUTTON] = st == GLUT_DOWN ? 1 : 0;
260 static void motion(int x, int y)
262 int dx = x - mouse_x;
263 int dy = y - mouse_y;
267 if(!(dx | dy)) return;
270 cam_theta -= dx * 0.01;
271 cam_phi -= dy * 0.01;
273 if(cam_phi < -M_PI) cam_phi = -M_PI;
274 if(cam_phi > M_PI) cam_phi = M_PI;
278 static unsigned int nextpow2(unsigned int x)