Space to change colour, 'a' for a 5 second lag spike. - Drag cards in. All moving cards (e.g. Paladin) spawn and they move around. - Health bars appear on top of each castle and each unit. - Added card effect by @26averyj - TODO: Add damage. The health list contains 5 elements for each troop and castle: health max health health bar x health bar y troop type (for other troops to see if they should attack)