static void invaders_DrawScene()
{
aliens_slow--;
if(aliens_slow <= 0) {
GrSetGCForeground(invaders_gc, GR_RGB(255,255,255));
aliens_draw(itest);
itest = (itest != 0) ? 0 : 1;
aliens_update_position();
GrSetGCForeground(invaders_gc, GR_RGB(0,0,0));
aliens_draw(itest);
aliens_slow = aliens_left / 4 - level + 4;
}
/* evaluate if fire or not */
if((rand() % 10) == 0 && alien_firing < ALIEN_MAX_FIRES) {
/* find cols active and set relative row tostart */
int cols[ALIENS_COLS];
int i, j, ncol, hitcol;
alien_firing++;
ncol = 0;
for(i = 0; i < ALIENS_COLS; i++){
for(j = aliens_rows - 1; j >= 0; j--){
if(alien_status[i * aliens_rows + j] > 0) {
cols[ncol++] = j;
break;
}
}
}
hitcol=rand() % ncol;
Dprintf("%d\n", hitcol);
alienfire[alien_firing - 1].posx = cell_minx + hitcol *
ALIEN_CELL_WIDTH + ALIEN_CELL_WIDTH / 2;
alienfire[alien_firing - 1].posy = cell_miny + cols[hitcol] *
ALIEN_CELL_HEIGHT + ALIEN_CELL_HEIGHT;
alienfire[alien_firing-1].dir = 1;
}
GrSetGCForeground(invaders_gc, GR_RGB(255,255,255));
me_draw();
fire_draw();
fire_update();
GrSetGCForeground(invaders_gc, GR_RGB(0,0,0));
me_draw();
fire_draw();
}
void aliens_tick(){
alien* iterator = invaders->head;
if(ufo != NULL){
if(ufo->state == ALIEN_DESTROYED){
ufo->ticks++;
if(ufo->ticks > 60)
ufo_destruct();
}
}
while(iterator != NULL){
if(iterator->state == ALIEN_DESTROYED){
iterator->ticks++;
if(iterator->ticks > 30){
if(alien_remove(iterator) == 1)
return;
}
}
iterator = iterator->next;
}
if(invaders->alien_num != 0){
aliens_draw();
}
}
