// Project: test_Tween 
// Created: 2017-12-01
// v01.05
// for this you need two pictures in .png format, Sprint1.png and Sprite2.png, in project folder "media" 
// Try with a picture of the Earth and the other of the Moon :)

	SetScreenResolution(1280,790)
	SetDisplayAspect(1.618) // golden aspect ratio

type tTweens
    iSprite
    iTween
endtype
Global gTweens as tTweens[0]

local idx as integer

for idx = 1 to 2 // two sprites
	idSprite = CreateTween(idx, 50 + idx * 10, 1 + (idx -1) * 15, 0, 2*360 ) // create the sprite number idx, at start (50) and end (5) X positions, 2 rotations from 0º to 360º
	PlayTweenSprite(gTweens[idSprite].iTween, gTweens[idSprite].iSprite,1)
next idx

repeat
	UpdateAllTweens(GetFrameTime())
	sync()
	Until GetPointerPressed() //press any key to exit APP
end

for n = idSprite to idx step -1 // delete the created sprites and array too
    DeleteSprite(gTweens[n].iSprite)
		DeleteTween(gTweens[n].iTween)
    gTweens.remove(n)
next n

end
// ------- End APP ---------

function CreateTween(pSprite, pX1, pX2, pA1, pA2) // we are just passing the start and end X positions for images
     
    local newTween as tTweens
		// create new sprite
    newTween.iSprite = LoadSprite("Sprite"+str(pSprite)+".png")
    setSpriteSize(newTween.iSprite,1,-1) // maintain the image proportion
		// create new tween
    newTween.iTween=CreateTweenSprite(newTween.iSprite)
    SetTweenSpriteSizeX(newTween.iTween,80,0,6) // size 80 to 0, interpolation TweenEaseOut2()
		SetTweenSpriteSizeY(newTween.iTween,80*GetSpriteHeight(newTween.iSprite),0,6)
		SetTweenSpriteX(newTween.iTween, pX1, pX2, 6)
		SetTweenSpritey(newTween.iTween, 0, 50, 6)
		if pA1 <> pA2 then SetTweenSpriteAngle(newTween.iTween, pA1, pA2, 0) //rotating
    SetTweenDuration(newTween.iTween, 50 )

		gTweens.insert(newTween) //insert as new element in array
		
endfunction gTweens.length // return the sprite id