Pixel

Supported platforms:
Available since: Gideros 2016.06
Inherits from: Sprite

Description

A rectangular Sprite which can be filled with solid colors, gradients or textures. Pixel aims at being a simpler and faster alternative to Shape when needing to display a coloured box or box with a gradient. It is also useful as Bitmap replacement since every texture will be fitted into Pixel dimensions automatically.

Examples

local mypixel = Pixel.new(0x0000FF, 0.75, 128, 128)
mypixel:setAnchorPoint(0.5, 0.5)
mypixel:setPosition(application:getContentWidth() / 2, 64)

stage:addChild(mypixel)

application:setBackgroundColor(0x323232)
local p = Pixel.new(0xffffff, 1, 32, 32)
 
p:set("redMultiplier", 1) -- OK
p:set("greenMultiplier", 0) -- OK
p:set("blueMultiplier", 0) -- OK
p:set("alphaMultiplier", 1) -- OK
--p:set("anchorX", .5) -- NOT OK
--p:set("anchorY", .5) -- NOT OK
p:set("anchorX", 16) -- OK
p:set("anchorY", 16) -- OK
p:set("alpha", .5) -- OK
p:set("scaleX", 1.5) -- OK
p:set("rotation", 10) -- OK
p:set("x", 32) -- OK
p:set("y", 32) -- OK

stage:addChild(p)

Moving stars in a gradient sky

-- moving stars in a gradient sky by: @PaulH
local width, height = 640, 360
-- a gradient sky
local sky = Pixel.new(0xffffff, 1, width, height)
sky:setColor(0x3a597c, 1, 0x4d0074, 1, 90) -- a gradient set horizontally
-- stars
local spritestars = Sprite.new() -- a sprite to hold all star shapes
for i = 1, 256 do -- @PaulH
	local s = Shape.new()
	s:setLineStyle(2, 0xffffff)
	s:moveTo(0, 0)
	s:lineTo(1, 1)
	s:endPath()
	s:setPosition(math.random(0, width), math.random(0, 2.2*height/3))
	s:setScale(math.random(5, 15) / 10)
	s:setAlpha(math.random(10, 50) / 50)
	spritestars:addChild(s)
end
-- render stars to a render target
local rtstars = RenderTarget.new(width, height, nil, { wrap="repeat", extend=false, })
rtstars:draw(spritestars)
-- create an image (Pixel) of the stars
local stars = Pixel.new(rtstars, width, height)
stars:setColorTransform(7/255, 221/255, 219/255, 1) -- stars color
-- order
stage:addChild(sky)
stage:addChild(stars)

-- game loop
local velx = 0
function onEnterFrame(e)
	-- move the stars
	velx -= e.deltaTime * 32 -- 128
	stars:setTexturePosition(velx, 0)
end
stage:addEventListener(Event.ENTER_FRAME, onEnterFrame)

Methods Pixel.new creates a new Pixel Pixel.new constructor to create a Pixel with texture in letterbox mode Pixel:getColor returns the color(s) of the Pixel Pixel:getDimensions returns the current size of the Pixel Pixel:getTexturePosition returns the texture position Pixel:getTextureScale returns the texture scale Pixel:setColor sets the color of the Pixel Pixel:setColor sets a gradient Pixel:setColor sets a 4-colour gradient Pixel:setDimensions sets both width and height of the Pixel Pixel:setHeight sets the height of the Pixel sprite Pixel:setNinePatch sets a 9-patch style texture rendering Pixel:setTexture attaches a texture to the Pixel Pixel:setTextureMatrix specifies a transform matrix for the texture Pixel:setTexturePosition sets a texture position Pixel:setTextureScale sets a texture scale Pixel:setWidth sets the width of the Pixel sprite

Events Constants

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