void MapViewer::render() {
CHECK_NOTNULL(map);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
render_map();
render_objects(false);
render_sprites();
render_objects(true);
render_gui();
}
int main()
{
SDL_Window* win;
// initialize SDL
if(SDL_Init(SDL_INIT_EVERYTHING) != 0) {
fprintf(stderr, "\nUnable to initialize SDL: %s\n", SDL_GetError());
}
// initialize window and renderer
if(SDL_CreateWindowAndRenderer(800, 600, SDL_WINDOW_RESIZABLE, &win,
&ren) != 0) {
fprintf(stderr, "\nUnable to intialize window: %s\n", SDL_GetError());
}
init_physics();
// main lopp
for(;;) {
Uint32 t = SDL_GetTicks() + 1000/60;
// physics step
update_friction(0);
update_drive();
update_turn();
cpSpaceStep(space, 1.0/60.0);
debug_physics();
// events
SDL_Event e;
while(SDL_PollEvent(&e)) {
switch(e.type) {
case SDL_QUIT:
exit(0);
break;
}
}
const Uint8* k = SDL_GetKeyboardState(NULL);
controls.forward = k[SDL_SCANCODE_UP];
controls.back = k[SDL_SCANCODE_DOWN];
controls.left = k[SDL_SCANCODE_LEFT];
controls.right = k[SDL_SCANCODE_RIGHT];
// render
SDL_SetRenderDrawColor(ren, 255, 255, 255, 255);
SDL_RenderClear(ren);
SDL_SetRenderDrawColor(ren, 0, 0, 0, 255);
render_objects();
SDL_RenderPresent(ren);
// time
if(SDL_GetTicks() < t) {
SDL_Delay(t - SDL_GetTicks());
}
}
return 0;
}
void render_draw(r_context_t *c)
{
c->r_leafcount = 0;
/* Find eye cluster for PVS checks. Now in uicommon.c
if (!(g->r_lockpvs))
c->r_eyecluster = find_cluster(c->r_eyepos);
*/
if (g->r_setup_projection) {
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
/* Set up camera - old way
gluLookAt(g->r_eyepos[0], g->r_eyepos[1], g->r_eyepos[2],
g->r_eyepos[0]+g->r_movedir[0], g->r_eyepos[1]+g->r_movedir[1],
g->r_eyepos[2]+g->r_movedir[2], 0.0, 0.0, 1.0);
*/
glPushMatrix();
// Rotate the camera in Q3A world coords (x=right, y=ahead, z=up)
glRotatef(-(c->r_eye_el)-90.0f, 1.0, 0.0f, 0.0f);
glRotatef(c->r_eye_roll, 0.0, 1.0f, 0.0f);
glRotatef(-(c->r_eye_az)+90.0f, 0.0, 0.0f, 1.0f);
glGetFloatv(GL_MODELVIEW_MATRIX, mtxC);
// Invert the camera rotation matrix (orthonormal: inverse = transpose)
mtxCli[0]=mtxC[0];
mtxCli[1]=mtxC[4];
mtxCli[2]=mtxC[8];
mtxCli[4]=mtxC[1];
mtxCli[5]=mtxC[5];
mtxCli[6]=mtxC[9];
mtxCli[8]=mtxC[2];
mtxCli[9]=mtxC[6];
mtxCli[10]=mtxC[10];
// (The remaining seven elements never change)
c->mtxCli = mtxCli;
if (!(g->r_setup_projection)) {
/* for CAVE, scale units to feet! */
glScalef(g->r_scale, g->r_scale, g->r_scale);
}
glTranslatef(-(c->r_eyepos[0]), -(c->r_eyepos[1]), -(c->r_eyepos[2]));
render_objects(c);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
#if 0
/* Enable for speeds reporting (like g->r_speeds 1) */
printf("faces: %d, leafs: %d\n", facelist.numfaces + translist.numfaces,
g->r_leafcount);
#endif
}
