void TemplateTrack::drawTemplate(QPainter* painter, QRectF& clip_rect, double scale, bool on_screen, float opacity) const
{
Q_UNUSED(clip_rect);
Q_UNUSED(scale);
painter->save();
painter->setOpacity(opacity);
drawTracks(painter, on_screen);
drawWaypoints(painter);
painter->restore();
}
int execAlleg()
{
// init variables from lua
lua_getglobal(L, "Screen");
SCREEN_W = getfield(L, "width");
SCREEN_H = getfield(L, "height");
lua_pop(L, 1);
printf("screen height= %d width= %d\n", SCREEN_H, SCREEN_W);
lua_getglobal(L, "Car");
CAR_WIDTH = getfield(L, "width");
lua_pop(L, 1);
printf("car width= %d\n", CAR_WIDTH);
lua_getglobal(L, "Track");
TRACKS_NUM = getfield(L, "number");
TRACKS_BEGIN = getfield(L, "begin");
TRACKS_FINISH = getfield(L, "finish");
lua_pop(L, 1);
// register C function to Lua
lua_pushcfunction(L, getCar);
lua_setglobal(L, "sendCar");
// end of lua intialization
ALLEGRO_DISPLAY *display = NULL;
ALLEGRO_EVENT_QUEUE *event_queue = NULL;
ALLEGRO_TIMER *timer = NULL;
ALLEGRO_BITMAP *world;
bool doexit = false;
bool redraw = true;
bool KEY_LEFT = false, KEY_RIGHT = false;
if(!al_init()) {
fprintf(stderr, "failed to initialize allegro!\n");
return -1;
}
if(!al_install_keyboard()) {
fprintf(stderr, "failed to initialize the keyboard!\n");
return -1;
}
if(!al_install_mouse()) {
fprintf(stderr, "failed to initialize the mouse!\n");
return -1;
}
timer = al_create_timer(1.0 / FPS);
if(!timer) {
fprintf(stderr, "failed to create timer!\n");
return -1;
}
display = al_create_display(SCREEN_W, SCREEN_H);
if(!display) {
fprintf(stderr, "failed to create display!\n");
al_destroy_timer(timer);
return -1;
}
if (!al_init_primitives_addon()) {
fprintf(stderr, "failed to init primitives addon!\n");
al_destroy_timer(timer);
return -1;
}
event_queue = al_create_event_queue();
if(!event_queue) {
fprintf(stderr, "failed to create event_queue!\n");
al_destroy_display(display);
al_destroy_timer(timer);
return -1;
}
world = al_create_bitmap(SCREEN_W, SCREEN_H);
if(!world) {
fprintf(stderr, "failed to create world bitmap!\n");
al_destroy_display(display);
al_destroy_timer(timer);
return -1;
}
cars_num = (unsigned*)malloc(BAR_W*sizeof(unsigned));
cars_col = (float*)malloc(BAR_W*sizeof(float));
int n;
for (n = 0; n < BAR_W; n++) {
cars_num[n] = 0;
cars_col[n] = 1;
}
al_set_target_bitmap(world);
al_clear_to_color(al_map_rgb(0, 0, 0));
al_set_target_bitmap(al_get_backbuffer(display));
al_register_event_source(event_queue, al_get_display_event_source(display));
al_register_event_source(event_queue, al_get_timer_event_source(timer));
al_register_event_source(event_queue, al_get_keyboard_event_source());
al_register_event_source(event_queue, al_get_mouse_event_source());
al_start_timer(timer);
while(!doexit)
{
ALLEGRO_EVENT ev;
al_wait_for_event(event_queue, &ev);
if(ev.type == ALLEGRO_EVENT_TIMER &&
al_is_event_queue_empty(event_queue) &&
!PAUSE) {
al_set_target_bitmap(world);
al_clear_to_color(al_map_rgb(0,0,0));
// your code here
drawTracks();
lua_getglobal(L, "simulate");
lua_call(L,0,0);
drawBar();
// end of your code
}
else if(ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
break;
}
else if(ev.type == ALLEGRO_EVENT_KEY_DOWN) {
switch(ev.keyboard.keycode) {
case ALLEGRO_KEY_LEFT: KEY_LEFT = true; break;
case ALLEGRO_KEY_RIGHT: KEY_RIGHT = true; break;
case ALLEGRO_KEY_P: PAUSE = (PAUSE) ? false : true; break;
}
}
else if(ev.type == ALLEGRO_EVENT_KEY_UP) {
switch(ev.keyboard.keycode) {
case ALLEGRO_KEY_LEFT: KEY_LEFT = false; break;
case ALLEGRO_KEY_RIGHT: KEY_RIGHT = false; break;
}
}
else if(ev.type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN) {
world_x = ((SCREEN_W - TRACKS_BEGIN - TRACKS_FINISH)*ev.mouse.x)/SCREEN_W;
}
/*
if (ev.type == ALLEGRO_EVENT_MOUSE_AXES ||
ev.type == ALLEGRO_EVENT_MOUSE_ENTER_DISPLAY) {
al_flush_event_queue(event_queue);
}
*/
if (KEY_LEFT) {
if (world_x + 20 <= 0) world_x += 20;
}
if (KEY_RIGHT) {
if (world_x - 20 >= SCREEN_W - TRACKS_BEGIN - TRACKS_FINISH) world_x -= 20;
}
if (redraw) {
al_set_target_bitmap(al_get_backbuffer(display));
al_draw_bitmap(world, 0, 0, 0);
al_flip_display();
}
}
al_destroy_timer(timer);
al_destroy_display(display);
al_destroy_event_queue(event_queue);
al_shutdown_primitives_addon();
return 0;
}
