square transition problem

espace3d · July 6, 2014, 9:27am

Hi,

i have a problem to do a simple task : a transition of a square to produce a shadow effect of a projectile.

my problem is that the square1 is delete too fast. Normaly, he must be deleted after the local deplacement and not before…why?

&nbsp;&nbsp;&nbsp; local square = display.newRect( 100, 100, 30, 30 ) &nbsp;&nbsp;&nbsp; square.yScale=1 &nbsp;&nbsp;&nbsp; square.xScale=1 &nbsp;&nbsp;&nbsp; local deplacement=transition.to( square, { time=500, x=150, y=10, yScale=2, xScale=2, onComplete=deplacement, } ) &nbsp;&nbsp;&nbsp; display.remove (square) &nbsp;&nbsp;&nbsp; square=nil &nbsp;&nbsp;&nbsp; local square2 = display.newRect( 150, 100, 60, 60 ) &nbsp;&nbsp;&nbsp; square2.yScale=1 &nbsp;&nbsp;&nbsp; square2.xScale=1 &nbsp;&nbsp;&nbsp; square2.alpha=0.9 &nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square2, { delay=500, time=500, x=300, y=100, yScale=0.5, xScale=0.5, onComplete=deplacement2 } )

espace3d · July 6, 2014, 5:03pm

half solved.

for the first part but I found… the second square that should appear after a period of time I can not find …

&nbsp;local square = display.newRect( 100, 100, 30, 30 ) &nbsp;&nbsp;&nbsp; square.yScale=1 &nbsp;&nbsp;&nbsp; square.xScale=1 &nbsp;&nbsp;&nbsp; local function removeob( square ) &nbsp;&nbsp;&nbsp; square:removeSelf() &nbsp;&nbsp;&nbsp; end &nbsp;&nbsp;&nbsp; local deplacement=transition.to( square, { time=200, x=150, y=100, yScale=2, xScale=2, onComplete=removeob } ) --square 2 appear to fast in same time than square!!!&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp; local function app() &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local square2=display display.newRect( 150, 100, 60, 60 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) &nbsp;&nbsp;&nbsp; end &nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp; timer.performWithDelay(190, app) &nbsp;&nbsp; &nbsp;

&nbsp;

espace3d · July 7, 2014, 7:58am

sorry to pollute the forum but no one for me?

jonathan.simananda · July 7, 2014, 8:20am

in the code you only called a timer to show the second square without waiting for the first square transition to be done first.

you should change into something like this:

 local function app() local square2=display display.newRect( 150, 100, 60, 60 ) local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) end local square = display.newRect( 100, 100, 30, 30 ) square.yScale=1 square.xScale=1 local function removeob() square:removeSelf() timer.performWithDelay(190, app) end local deplacement=transition.to( square, { time=200, x=150, y=100, yScale=2, xScale=2, onComplete=removeob } )

espace3d · July 7, 2014, 8:24am

thanks but your solution don’t work,

The square2 don’t make the transition. idon’t knwo why because what you wrote is correct and logic.

jonathan.simananda · July 7, 2014, 8:28am

can you tell me more what happened after you change the code? Does it gives any error, or just no transition?

espace3d · July 7, 2014, 8:31am

no error.

just the second transition and the local square2 which does not appear

jonathan.simananda · July 7, 2014, 8:41am

try this:

 local function app() local square2=display display.newRect( 150, 100, 60, 60 ) local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) end local square = display.newRect( 100, 100, 30, 30 ) local function removeob(obj) obj:removeSelf() timer.performWithDelay(190, app) end local deplacement = transition.to( square, { time=200, x=150, y=100, yScale=2, xScale=2, onComplete=function() removeob(square) end} )

espace3d · July 7, 2014, 9:12am

I tried your code but still the same concern.
I corrected the line with remove (obj) by remove (square)

&nbsp;local function app() &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local square2=display display.newRect( 150, 100, 60, 60 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) &nbsp;&nbsp;&nbsp; end local square = display.newRect( 100, 100, 30, 30 ) local function removeob(square) &nbsp;&nbsp;&nbsp; square:removeSelf() &nbsp;&nbsp;&nbsp; timer.performWithDelay(190, app) end local deplacement = transition.to( square, { time=200, x=150, y=100, yScale=2, xScale=2, onComplete=function() &nbsp;&nbsp;&nbsp; removeob(square) end} )

jonathan.simananda · July 7, 2014, 9:17am

try print something inside the remove function to check whether the function runs correctly

local function removeob(square) square:removeSelf() print('call square 2') app() //try calling it without any timer end

espace3d · July 7, 2014, 9:24am

it’s seems that the local square2 is not considered

result = nil

local function removeob(square) &nbsp;&nbsp;&nbsp; square:removeSelf() &nbsp;&nbsp;&nbsp; app() &nbsp;&nbsp;&nbsp; print(square2) end

i have modified my code with but it’s the same

&nbsp;local function app() &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local square2=display display.newRect( 150, 100, 60, 60 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return square2, deplacement2 &nbsp;&nbsp;&nbsp; end

espace3d · July 7, 2014, 9:51am

writing different and the problem is the local essai wich don’t work

&nbsp;local square = display.newRect( 100, 100, 30, 30 ) &nbsp;local essai = function (square, square2, deplacement2) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; square:removeSelf() &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local square2=display display.newRect( 150, 100, 60, 60 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) &nbsp;&nbsp;&nbsp; end local deplacement = transition.to( square, { time=200, x=150, y=100, yScale=2, xScale=2, onComplete=essai})

nick_sherman · July 7, 2014, 10:42am

In your app function you have display written twice…the code posted by Jonathan should work with that error corrected.

[lua]

local function app()

local square2 = display.newRect( 150 , 100 , 60 , 60 )

local deplacement2=transition.to( square2, { time= 200 , x= 200 , y= 100 , yScale= 0.5 , xScale= 0.5 })

end

local square = display.newRect( 100 , 100 , 30 , 30 )

local function removeob(obj)

obj:removeSelf()

timer.performWithDelay( 190 , app)

end

local deplacement = transition.to( square, { time= 200 , x= 150 , y= 100 , yScale= 2 , xScale= 2 , onComplete=function()

removeob(square)

end} )

[/lua]

espace3d · July 7, 2014, 10:49am

thanks nick sherman

the code I wrote earlier works now

thank you both

&nbsp;local square = display.newRect( 100, 100, 30, 30 ) &nbsp;local function essai(square) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; square:removeSelf() &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local square2=display.newRect( 150, 100, 60, 60 ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square2, { time=200, x=200, y=100, yScale=0.5, xScale=0.5}) &nbsp;&nbsp;&nbsp; end local deplacement = transition.to( square, { time=200, x=150, y=100, yScale=2, xScale=2, onComplete=essai })

espace3d · July 7, 2014, 10:57am

thanks again a nice jump effect

local eventx=300 local eventy=300 local persox=100 local persoy=100 if eventx==persox then nouvelleCoordonneex=eventx else nouvelleCoordonneex=eventx-persox end if eventy==persoy then nouvelleCoordonneey=eventy else nouvelleCoordonneey=eventy-persoy end &nbsp;local function jump() &nbsp;local square = display.newImage( "my2.png" ) &nbsp;square.x=persox &nbsp;square.y=persoy &nbsp;local function essai(square) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; square:removeSelf() &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local square=display.newImage( "my2.png" ) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; square.x=nouvelleCoordonneex &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; square.y=nouvelleCoordonneey &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; local deplacement2=transition.to( square, { time=250, x=eventx, y=eventy, yScale=0.5, xScale=0.5, transition=easing.outElastic}) &nbsp;&nbsp;&nbsp; end local deplacement = transition.to( square, { time=100, x=nouvelleCoordonneex, y=nouvelleCoordonneey, yScale=2, xScale=2, onComplete=essai, transition=easing.inBounce }) end jump()

espace3d · July 6, 2014, 5:03pm