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--- A little bit more than just a Canvas.
-- TODO: Scaled and RealScaled support should be extended.
Layer = require "not.Object":extends()
function Layer:new (width, height)
self.canvas = love.graphics.newCanvas(width, height)
self.scale = false
self.ratio = false
end
function Layer:delete ()
self.canvas = nil
end
--- Sets this layer as current canvas for drawing with love.graphics functions.
-- @return old canvas used by love
function Layer:setAsCanvas ()
local c = love.graphics.getCanvas()
love.graphics.setCanvas(self.canvas)
return c
end
function Layer:renderTo (func, ...)
local c = self:setAsCanvas()
func(...)
love.graphics.setCanvas(c)
end
function Layer:renderToWith (camera, func, ...)
camera:push()
camera:scale(self.scale)
camera:translate(self.ratio)
self:renderTo(func, ...)
camera:pop()
end
function Layer:clear ()
self:renderTo(love.graphics.clear)
end
function Layer:draw ()
local scale = 1
if self.scale then
scale = getScale() / self.scale
end
love.graphics.setColor(255, 255, 255, 255)
love.graphics.draw(self.canvas, nil, nil, nil, scale, scale)
end
return Layer
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