dungeon_crawler

annotate prototype/src/main.cc @ 24:e122ba214ee1

find changesets by author, revision, files, or words in the commit message
implementing the command console
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 23 Aug 2012 18:03:11 +0300
parents fa8f89d06f6f
children 527fede30057
rev   line source
nuclear@1 1 #include <stdio.h>
nuclear@1 2 #include <stdlib.h>
nuclear@1 3 #include <assert.h>
nuclear@7 4 #include <unistd.h>
nuclear@1 5 #include "opengl.h"
nuclear@1 6 #include "level.h"
nuclear@1 7 #include "camera.h"
nuclear@5 8 #include "datapath.h"
nuclear@5 9 #include "tileset.h"
nuclear@15 10 #include "renderer.h"
nuclear@24 11 #include "cmdcon.h"
nuclear@18 12 #include "cfg.h"
nuclear@1 13
nuclear@17 14 bool init(int xsz, int ysz);
nuclear@5 15 void cleanup();
nuclear@7 16 void idle();
nuclear@1 17 void disp();
nuclear@15 18 void draw();
nuclear@18 19 void view_matrix(int eye);
nuclear@18 20 void proj_matrix(int eye);
nuclear@7 21 void update(unsigned long msec);
nuclear@1 22 void reshape(int x, int y);
nuclear@1 23 void keyb(unsigned char key, int x, int y);
nuclear@7 24 void key_release(unsigned char key, int x, int y);
nuclear@24 25 void keyb_con(unsigned char key, int x, int y);
nuclear@1 26 void mouse(int bn, int state, int x, int y);
nuclear@1 27 void motion(int x, int y);
nuclear@1 28
nuclear@5 29 static TileSet *tileset;
nuclear@1 30 static Level *level;
nuclear@7 31
nuclear@7 32 static FpsCamera cam;
nuclear@7 33 static bool keystate[256];
nuclear@1 34
nuclear@18 35 static float stereo_focus_dist = 0.25;
nuclear@18 36 static float stereo_eye_sep = stereo_focus_dist / 30.0;
nuclear@18 37
nuclear@24 38 static bool show_con;
nuclear@5 39
nuclear@1 40 int main(int argc, char **argv)
nuclear@1 41 {
nuclear@1 42 glutInit(&argc, argv);
nuclear@5 43
nuclear@18 44 if(!cfg.parse_args(argc, argv)) {
nuclear@18 45 return 1;
nuclear@5 46 }
nuclear@5 47
nuclear@18 48 glutInitWindowSize(cfg.width, cfg.height);
nuclear@18 49 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | (cfg.stereo ? GLUT_STEREO : 0));
nuclear@18 50 glutCreateWindow("dungeon crawler prototype");
nuclear@1 51
nuclear@7 52 glutIdleFunc(idle);
nuclear@1 53 glutDisplayFunc(disp);
nuclear@1 54 glutReshapeFunc(reshape);
nuclear@1 55 glutKeyboardFunc(keyb);
nuclear@7 56 glutKeyboardUpFunc(key_release);
nuclear@1 57 glutMouseFunc(mouse);
nuclear@1 58 glutMotionFunc(motion);
nuclear@1 59
nuclear@1 60 glewInit();
nuclear@1 61
nuclear@18 62 if(!init(cfg.width, cfg.height)) {
nuclear@5 63 return 1;
nuclear@5 64 }
nuclear@5 65
nuclear@5 66 glutMainLoop();
nuclear@5 67 }
nuclear@5 68
nuclear@17 69 bool init(int xsz, int ysz)
nuclear@5 70 {
nuclear@1 71 glEnable(GL_LIGHTING);
nuclear@1 72 glEnable(GL_LIGHT0);
nuclear@1 73 float ldir[] = {-1, 1, 2, 0};
nuclear@1 74 glLightfv(GL_LIGHT0, GL_POSITION, ldir);
nuclear@1 75 glEnable(GL_NORMALIZE);
nuclear@1 76
nuclear@1 77 glEnable(GL_DEPTH_TEST);
nuclear@1 78 glEnable(GL_CULL_FACE);
nuclear@1 79 glEnable(GL_MULTISAMPLE);
nuclear@1 80
nuclear@5 81 add_data_path("data");
nuclear@16 82 add_data_path("sdr");
nuclear@5 83
nuclear@17 84 if(!init_renderer(xsz, ysz)) {
nuclear@15 85 return false;
nuclear@15 86 }
nuclear@15 87
nuclear@5 88 // load a tileset
nuclear@5 89 tileset = new TileSet;
nuclear@18 90 printf("loading tileset: %s\n", cfg.tileset_file);
nuclear@18 91 if(!tileset->load(datafile_path(cfg.tileset_file))) {
nuclear@5 92 return false;
nuclear@5 93 }
nuclear@5 94 set_active_tileset(tileset);
nuclear@5 95
nuclear@1 96 level = new Level;
nuclear@18 97 printf("loading level: %s\n", cfg.level_file);
nuclear@18 98 if(!level->load(datafile_path(cfg.level_file))) {
nuclear@5 99 return false;
nuclear@1 100 }
nuclear@1 101
nuclear@7 102 cam.input_move(0, 0.5, 0);
nuclear@7 103
nuclear@5 104 return true;
nuclear@1 105 }
nuclear@1 106
nuclear@15 107 void cleanup()
nuclear@15 108 {
nuclear@15 109 delete level;
nuclear@15 110 delete tileset;
nuclear@15 111
nuclear@15 112 destroy_renderer();
nuclear@15 113 }
nuclear@15 114
nuclear@7 115 void idle()
nuclear@7 116 {
nuclear@7 117 glutPostRedisplay();
nuclear@7 118 }
nuclear@7 119
nuclear@1 120 void disp()
nuclear@1 121 {
nuclear@7 122 update(glutGet(GLUT_ELAPSED_TIME));
nuclear@7 123
nuclear@18 124 if(cfg.stereo) {
nuclear@18 125 glDrawBuffer(GL_BACK_LEFT);
nuclear@1 126
nuclear@18 127 glMatrixMode(GL_PROJECTION);
nuclear@18 128 glLoadIdentity();
nuclear@18 129 proj_matrix(-1);
nuclear@18 130 glMatrixMode(GL_MODELVIEW);
nuclear@18 131 glLoadIdentity();
nuclear@18 132 view_matrix(-1);
nuclear@1 133
nuclear@24 134 draw();
nuclear@18 135
nuclear@18 136 glDrawBuffer(GL_BACK_RIGHT);
nuclear@18 137
nuclear@18 138 glMatrixMode(GL_PROJECTION);
nuclear@18 139 glLoadIdentity();
nuclear@18 140 proj_matrix(1);
nuclear@18 141 glMatrixMode(GL_MODELVIEW);
nuclear@18 142 glLoadIdentity();
nuclear@18 143 view_matrix(1);
nuclear@18 144
nuclear@24 145 draw();
nuclear@18 146 } else {
nuclear@18 147 glMatrixMode(GL_PROJECTION);
nuclear@18 148 glLoadIdentity();
nuclear@18 149 proj_matrix(0);
nuclear@18 150 glMatrixMode(GL_MODELVIEW);
nuclear@18 151 glLoadIdentity();
nuclear@18 152 view_matrix(0);
nuclear@18 153
nuclear@24 154 draw();
nuclear@18 155 }
nuclear@1 156
nuclear@1 157 glutSwapBuffers();
nuclear@1 158 assert(glGetError() == GL_NO_ERROR);
nuclear@7 159
nuclear@7 160 usleep(10000);
nuclear@7 161 }
nuclear@7 162
nuclear@24 163 void draw()
nuclear@24 164 {
nuclear@24 165 render_deferred(level);
nuclear@24 166
nuclear@24 167 if(show_con) {
nuclear@24 168 draw_cmdcon();
nuclear@24 169 }
nuclear@24 170 }
nuclear@24 171
nuclear@18 172 void view_matrix(int eye)
nuclear@18 173 {
nuclear@18 174 float offs = stereo_eye_sep * eye * 0.5;
nuclear@18 175 glTranslatef(-offs, 0, 0);
nuclear@18 176 cam.use_inverse();
nuclear@18 177 }
nuclear@18 178
nuclear@18 179 void proj_matrix(int eye)
nuclear@18 180 {
nuclear@18 181 static const float fov = M_PI / 4.0;
nuclear@18 182 static const float near_clip = 0.1;
nuclear@18 183 static const float far_clip = 100.0;
nuclear@18 184
nuclear@18 185 float top = near_clip * tan(fov * 0.5);
nuclear@18 186 float right = top * (float)cfg.width / (float)cfg.height;
nuclear@18 187
nuclear@18 188 float frust_shift = -(float)eye * (stereo_eye_sep * 0.5 * near_clip / stereo_focus_dist);
nuclear@18 189 glFrustum(-right + frust_shift, right + frust_shift, -top, top, near_clip, far_clip);
nuclear@18 190 }
nuclear@18 191
nuclear@18 192
nuclear@7 193 void update(unsigned long msec)
nuclear@7 194 {
nuclear@7 195 static unsigned long last_upd;
nuclear@7 196
nuclear@7 197 if(last_upd == 0) {
nuclear@7 198 last_upd = msec;
nuclear@7 199 }
nuclear@7 200 float dt = (float)(msec - last_upd) / 1000.0;
nuclear@7 201
nuclear@9 202 float offs = 2.5 * dt;
nuclear@7 203 float dx = 0, dy = 0;
nuclear@7 204
nuclear@7 205 // handle key input
nuclear@7 206 if(keystate['w'] || keystate['W']) {
nuclear@7 207 dy -= offs;
nuclear@7 208 }
nuclear@7 209 if(keystate['s'] || keystate['S']) {
nuclear@7 210 dy += offs;
nuclear@7 211 }
nuclear@7 212 if(keystate['d'] || keystate['D']) {
nuclear@7 213 dx += offs;
nuclear@7 214 }
nuclear@7 215 if(keystate['a'] || keystate['A']) {
nuclear@7 216 dx -= offs;
nuclear@7 217 }
nuclear@7 218
nuclear@7 219 cam.input_move(dx, 0, dy);
nuclear@7 220
nuclear@7 221 last_upd = msec;
nuclear@1 222 }
nuclear@1 223
nuclear@1 224 void reshape(int x, int y)
nuclear@1 225 {
nuclear@1 226 glViewport(0, 0, x, y);
nuclear@18 227 cfg.width = x;
nuclear@18 228 cfg.height = y;
nuclear@1 229 }
nuclear@1 230
nuclear@18 231 static bool stereo_shift_pressed;
nuclear@18 232
nuclear@1 233 void keyb(unsigned char key, int x, int y)
nuclear@1 234 {
nuclear@1 235 switch(key) {
nuclear@1 236 case 27:
nuclear@1 237 exit(0);
nuclear@18 238
nuclear@24 239 case '`':
nuclear@24 240 show_con = true;
nuclear@24 241 glutKeyboardFunc(keyb_con);
nuclear@24 242 glutKeyboardUpFunc(0);
nuclear@24 243 glutPostRedisplay();
nuclear@24 244 break;
nuclear@24 245
nuclear@18 246 case 'z':
nuclear@18 247 stereo_shift_pressed = true;
nuclear@18 248 break;
nuclear@18 249
nuclear@18 250 case '\n':
nuclear@18 251 case '\r':
nuclear@18 252 {
nuclear@18 253 static bool fullscr;
nuclear@18 254 if(glutGetModifiers() & GLUT_ACTIVE_ALT) {
nuclear@18 255 fullscr = !fullscr;
nuclear@18 256 if(fullscr) {
nuclear@18 257 glutFullScreen();
nuclear@18 258 } else {
nuclear@18 259 glutPositionWindow(20, 20);
nuclear@18 260 }
nuclear@18 261 }
nuclear@18 262 }
nuclear@18 263 break;
nuclear@18 264
nuclear@18 265 default:
nuclear@18 266 break;
nuclear@1 267 }
nuclear@7 268
nuclear@7 269 keystate[key] = true;
nuclear@7 270 }
nuclear@7 271
nuclear@7 272 void key_release(unsigned char key, int x, int y)
nuclear@7 273 {
nuclear@18 274 switch(key) {
nuclear@18 275 case 'z':
nuclear@18 276 stereo_shift_pressed = false;
nuclear@18 277 break;
nuclear@18 278
nuclear@18 279 default:
nuclear@18 280 break;
nuclear@18 281 }
nuclear@18 282
nuclear@7 283 keystate[key] = false;
nuclear@1 284 }
nuclear@1 285
nuclear@24 286 void keyb_con(unsigned char key, int x, int y)
nuclear@24 287 {
nuclear@24 288 if(key == '`' || key == 27) {
nuclear@24 289 show_con = false;
nuclear@24 290 glutKeyboardFunc(keyb);
nuclear@24 291 glutKeyboardUpFunc(key_release);
nuclear@24 292 glutPostRedisplay();
nuclear@24 293 } else {
nuclear@24 294 cmdcon_keypress(key);
nuclear@24 295 }
nuclear@24 296 }
nuclear@24 297
nuclear@1 298 static int prev_x, prev_y;
nuclear@1 299 static bool bnstate[32];
nuclear@1 300
nuclear@1 301 void mouse(int bn, int state, int x, int y)
nuclear@1 302 {
nuclear@1 303 prev_x = x;
nuclear@1 304 prev_y = y;
nuclear@1 305 bnstate[bn - GLUT_LEFT_BUTTON] = state == GLUT_DOWN;
nuclear@1 306 }
nuclear@1 307
nuclear@1 308 void motion(int x, int y)
nuclear@1 309 {
nuclear@1 310 int dx = x - prev_x;
nuclear@1 311 int dy = y - prev_y;
nuclear@1 312 prev_x = x;
nuclear@1 313 prev_y = y;
nuclear@1 314
nuclear@18 315 if(stereo_shift_pressed) {
nuclear@18 316 if(dy != 0) {
nuclear@18 317 stereo_focus_dist += dy * 0.01;
nuclear@18 318 stereo_eye_sep = stereo_focus_dist / 30.0;
nuclear@18 319 printf("foc: %f, sep: %f\n", stereo_focus_dist, stereo_eye_sep);
nuclear@18 320 glutPostRedisplay();
nuclear@18 321 }
nuclear@18 322 return;
nuclear@18 323 }
nuclear@18 324
nuclear@1 325 if(bnstate[0]) {
nuclear@7 326 cam.input_rotate(dy * 0.01, dx * 0.01, 0);
nuclear@1 327 glutPostRedisplay();
nuclear@1 328 }
nuclear@1 329 if(bnstate[2]) {
nuclear@1 330 cam.input_zoom(dy * 0.1);
nuclear@1 331 glutPostRedisplay();
nuclear@1 332 }
nuclear@1 333 }