chroma_solstice/door.lua

require "entity"

Door = class("Door", Entity)

function Door:initialize(x, y, color)
	self.doorColor = color
	Entity.initialize(self, {
		x = x,
		y = y,
		color = color,
		collision = "unmoveable",
		sprite = loadSprite("art/game/door_" .. color:sub(1, 1) .. ".png"),
	})
	self.locked = true
	self:refreshSprites()
end

-- A door is one normal, colour-layered entity. The editor can therefore place,
-- delete, and serialize its red/green/blue instances independently.
function Door:refreshSprites()
	local sprite
	if self.locked then
		sprite = loadSprite("art/game/door_" .. self.doorColor:sub(1, 1) .. ".png")
	else
		sprite = loadSprite("art/game/door_unlocked.png")
	end
	self.sprites = { [self.doorColor] = sprite }
end

function Door:setColors(colors)
	if colors[self.doorColor] then
		if self.locked then self:unlock() end
	else
		if not self.locked then self:lock() end
	end

	self:refreshSprites()
end

function Door:unlock()
	self.locked = false
	self.collision = "none"
end

function Door:lock()
	self.locked = true
	self.collision = "unmoveable"
end