Why is size resetting on sprite when an animation plays?

benny5 · April 27, 2013, 2:47pm

I have an animation of an elevator opening when I push a button. The original image is too large for where its supposed to be in the background so I set width and height on the sprite. Problem is, whenever I start the animation the sprite resets to its original image.

Even if I set width and height after calling animation:play() only the first frame is the size I wanted, from the next frame and onwards all frames are again reset to its original size! Is this intended behaviour? Why is it happening?

I know I could just resize the original image but I’d like to be able to control this in code if possible for experimentation.

&nbsp;&nbsp;&nbsp;&nbsp;local sheetData = { width=449, height=925, numFrames=3, sheetContentWidth=1347, sheetContentHeight=925 } &nbsp;&nbsp; &nbsp; local mySheet = graphics.newImageSheet("images/elevator.png", sheetData) &nbsp;&nbsp;&nbsp;&nbsp;local sequenceData = { &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{ name = "open", start=1, count=3, time=800 }, &nbsp;&nbsp;&nbsp;&nbsp;} &nbsp;&nbsp;&nbsp;&nbsp;local animation = display.newSprite(mySheet, sequenceData) &nbsp;&nbsp;&nbsp;&nbsp;animation.x = 100 &nbsp;&nbsp;&nbsp;&nbsp;animation.y = 0 &nbsp; common.room:addObject(1, animation) &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;local elevatorButtonTrigger = display.newRect(-240, 0, 50, 100) &nbsp; elevatorButtonTrigger.alpha = 0.2 &nbsp; elevatorButtonTrigger:setFillColor(0) &nbsp;&nbsp;&nbsp;&nbsp;elevatorButtonTrigger.isHitTestable = true &nbsp; elevatorButtonTrigger.tap = function() &nbsp; &nbsp; &nbsp; if animation.isPlaying then&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; animation:pause() &nbsp; &nbsp; &nbsp; else &nbsp; &nbsp; &nbsp; &nbsp; animation:play() &nbsp; &nbsp; &nbsp; &nbsp; animation.width = 100--animation.width / 2048 \* 480 &nbsp; &nbsp; &nbsp; &nbsp; animation.height = 100--animation.height / 1536 \* 360 &nbsp; &nbsp; &nbsp; end &nbsp; &nbsp; end &nbsp; elevatorButtonTrigger:addEventListener("tap", elevatorButtonTrigger) &nbsp;