Transform.lua


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local component = require 'component'

-- component for objects that have a position in the world
local Transform = component()
function Transform:init(inst)
	inst.pos = inst.pos or {0, 0}
	inst.angle = inst.angle or 0
	inst.scale = inst.scale or {1, 1}
	if type(inst.scale) == 'number' then
		inst.scale = {inst.scale, inst.scale}
	end
end

function Transform:love(trans)
	local trans = trans or love.math.newTransform()
	local x, y = unpack(self.i.pos)
	local sx, sy = unpack(self.i.scale)
	trans:setTransformation(x, y, self.i.angle, sx, sy)
	return trans
end

local trans = love.math.newTransform()
function Transform:use()
	self:love(trans) -- this is literally me
	love.graphics.applyTransform(trans)
end

return Transform