CODEWITHSUNDEEP
luacoronasdk
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referf erferferferf

Reputation: 17

How do you change an objects transparency when it is moved in corona sdk?

I am trying to create a drag-able square, which changes its transparency the closer it goes to the center of the screen (from being invisible in the sides to being completely visible in the center, like in the pictures below)

enter image description here

enter image description here

enter image description here

Upvotes: 0

Views: 374

Answers (1)

Omar Dhanish
Omar Dhanish

Reputation: 875

you can use alpha and transition to achieve that try below code , It should work .. below code changes square opacity from 0 to 100% over a time period of 1.5 seconds while moving

display.setDefault( "background", 80/255 )
local square = display.newRect(  0, display.contentHeight/2, 100, 100 )
square.anchorChildren = true
square:setFillColor( 255,255,0 )
square.alpha = 0

local w,h = display.contentWidth, display.contentHeight


transition.moveTo( square, { x = w/2, y = h/2, time=1500 , alpha = 1.0} )

Upvotes: 1

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