void ChangeHouseAnimationFrame(const GRFFile *file, TileIndex tile, uint16 callback_result)
{
switch (callback_result & 0xFF) {
case 0xFD: /* Do nothing. */ break;
case 0xFE: AddAnimatedTile(tile); break;
case 0xFF: DeleteAnimatedTile(tile); break;
default:
SetHouseAnimationFrame(tile, callback_result & 0xFF);
AddAnimatedTile(tile);
break;
}
/* If the lower 7 bits of the upper byte of the callback
* result are not empty, it is a sound effect. */
if (GB(callback_result, 8, 7) != 0) PlayTileSound(file, GB(callback_result, 8, 7), tile);
}
static bool BubbleTick(EffectVehicle *v)
{
uint anim_state;
v->progress++;
if ((v->progress & 3) != 0) return true;
if (v->spritenum == 0) {
v->cur_image++;
if (v->cur_image < SPR_BUBBLE_GENERATE_3) {
v->UpdatePositionAndViewport();
return true;
}
if (v->animation_substate != 0) {
v->spritenum = GB(Random(), 0, 2) + 1;
} else {
v->spritenum = 6;
}
anim_state = 0;
} else {
anim_state = v->animation_state + 1;
}
const BubbleMovement *b = &_bubble_movement[v->spritenum - 1][anim_state];
if (b->y == 4 && b->x == 0) {
delete v;
return false;
}
if (b->y == 4 && b->x == 1) {
if (v->z_pos > 180 || Chance16I(1, 96, Random())) {
v->spritenum = 5;
if (_settings_client.sound.ambient) SndPlayVehicleFx(SND_2F_POP, v);
}
anim_state = 0;
}
if (b->y == 4 && b->x == 2) {
TileIndex tile;
anim_state++;
if (_settings_client.sound.ambient) SndPlayVehicleFx(SND_31_EXTRACT, v);
tile = TileVirtXY(v->x_pos, v->y_pos);
if (IsTileType(tile, MP_INDUSTRY) && GetIndustryGfx(tile) == GFX_BUBBLE_CATCHER) AddAnimatedTile(tile);
}
v->animation_state = anim_state;
b = &_bubble_movement[v->spritenum - 1][anim_state];
v->x_pos += b->x;
v->y_pos += b->y;
v->z_pos += b->z;
v->cur_image = SPR_BUBBLE_0 + b->image;
v->UpdatePositionAndViewport();
return true;
}