Method drawMinimap

game/ui/components/basegraphics.cpp:222–276

}

sp<RGBImage> BaseGraphics::drawMinimap(sp<GameState> state, const Building &selected)
{
	// FIXME: add city ref to building
	auto city = state->cities["CITYMAP_HUMAN"];
	auto minimap = mksp<RGBImage>(Vec2<unsigned int>{100, 100});
	RGBImageLock l(minimap);

	// Offset for 'endless grass' outside of city borders
	static Vec2<int> offset(20, 20);

	// Draw the city tiles
	std::map<Vec2<int>, int> minimap_z;
	for (auto &pair : city->initial_tiles)
	{
		auto &pos = pair.first;
		auto &tile = pair.second;
		if (pos.x < offset.x || pos.x > city->size.x - offset.x || pos.y < offset.y ||
		    pos.y > city->size.y - offset.y)
			continue;

		Vec2<int> pos2d = {pos.x - offset.x, pos.y - offset.y};
		auto it = minimap_z.find(pos2d);
		if (it == minimap_z.end() || it->second < pos.z)
		{
			if (tile->minimap_colour.a == 0)
				continue;
			minimap_z[pos2d] = pos.z;
			l.set(pos2d, tile->minimap_colour);
		}
	}

	// Draw all bases as yellow blocks
	for (auto &pair : state->player_bases)
	{
		auto &base = pair.second;
		for (int y = base->building->bounds.p0.y; y < base->building->bounds.p1.y; y++)
		{
			for (int x = base->building->bounds.p0.x; x < base->building->bounds.p1.x; x++)
			{
				l.set({x - offset.x, y - offset.y}, {255, 255, 0, 255});
			}
		}
	}

	// Draw the current base as a red block
	for (int y = selected.bounds.p0.y; y < selected.bounds.p1.y; y++)
	{
		for (int x = selected.bounds.p0.x; x < selected.bounds.p1.x; x++)
		{
			l.set({x - offset.x, y - offset.y}, {255, 0, 0, 255});
		}
	}

	return minimap;
}

}; // namespace OpenApoc