Exemple #1
0
void Xiq::SetPixel(int x, int y, Color color)
{
	SDL_Surface *surface = GetRoot()->GetSurface();
	World *world = GetRoot()->GetWorld();
	Playfield *playfield = world->GetPlayfield();
	Player *player = world->GetPlayer();

	if (x < 0 || y < 0 || x >= surface->w  || y >= surface->h)
	{
		// if we clip against the edge, apply a restorative force
		force += Vector(world->GetMidPoint() - Vector(x,y));
		world->AddImpact(x,y, GetRadius()*6);
		return;
	}

	Playfield::Element element = playfield->At(x, y);
	if (element == Playfield::NewLine)
	{
		if (!player->IsImmune())
		{
			world->AddImpact(x,y, GetRadius()*6);
			player->LoseLife();
		}
	}
	if (element != Playfield::Empty)
	{
		// if we hit something, apply a force to move towards the player
		force += (location - Vector(x,y))*5;
		world->AddImpact(x,y, GetRadius()*6);
	}

	char *pixels = (char *)surface->pixels;
	Color *scanline = (Color *)(pixels + surface->pitch*y);
	scanline[x] = color;
}