Scaling Question

Ninjadoodle

Hi guys

I've set my sprites anchor point to (0.5, 0.5) and put it in the middle of the screen.

Prop = Core.class(Sprite)   function Prop:init(atlas, texture, x, y, container) local sprite = Bitmap.new(atlas:getTextureRegion(texture, true)) sprite:setAnchorPoint(0.5, 0.5) sprite:setPosition(x, y) self:addChild(sprite) container:addChild(self) end

When I try to scale the sprite down tho (inside the scene), it seems to be scaled into a corner of the screen.

function Scene1:onTransitionInBegin()   createContainers(self)   self.hole = Prop.new(self.pack, "splashHole.png", 160, 224, mg) self.hole:setScale(0.25, 0.25)     end

It works when I set scale within the class itself.

Am I doing something wrong?

Thank you in advance for any help!

keszegh

you scale the prop itself, and not the bitmap, so do it like this:

self.hole.sprite:setScale(0.25, 0.25)

it's a homework then to think over why scaling the prop will result in what you have seen (as it's the logical thing what happened).

1. in general a bitmap i would call bitmap and not sprite, it's easier to keep track i guess
2. i've seen somebody recommender using this container in the init, personally i think it's easier to keep track if you add the prop afterwards to the appropriate sprite, so leaving out container and the last line of init and adding after

prop=Prop.new(a,t,x,y) parentSprite:addChild(prop)

then in your main code you see that it's added and to which sprite. but that's a personal choice, i agree.

keszegh

also you can do that you don't position your sprite, only your prop, that would again work:

Prop = Core.class(Sprite)   function Prop:init(atlas, texture, x, y, container) local sprite = Bitmap.new(atlas:getTextureRegion(texture, true)) sprite:setAnchorPoint(0.5, 0.5) self:setPosition(x, y) self:addChild(sprite) container:addChild(self) end

and then the transitionin function of yours would work, i think.

Ninjadoodle

Hi @keszegh

I understand now how it all works. Thank you heaps for your help

I'm using another engine as well at the moment, and thing work slightly differently.

Thank you again!