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AppGameKit Classic Chat / Detect an area of a sprite?

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2D Analyst
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Joined: 2nd May 2004
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Posted: 9th Apr 2016 19:49
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I would like to use 1 sprite if possible. The sprite I have is a rectangle shape and the player needs to left tap and right tap, repeat, etc on this block to score block.

Is there a built in function that does this already? If not, I'm thinking of using a math formula to get the center of the rectangle and then check to see whether touch point is left or right of it.
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Markus
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Joined: 10th Apr 2004
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Posted: 10th Apr 2016 10:17
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u need
GetSpriteXByOffset ( iSpriteIndex )
GetSpriteYByOffset ( iSpriteIndex )
GetSpriteHit ( x, y )
GetSpriteHitCategory ( categories, x, y )
GetSpriteHitGroup ( group, x, y )
GetSpriteHitTest ( iSpriteIndex, x, y )

GetPointerPressed () or GetPointerReleased ()
GetPointerX ()
GetPointerY ()
u can make a function with parameter spriteindex and it returns 1-4 for the edges.
just call hit test 4 times and add/sub a value at the pointer
example.
d#=1.0
GetSpriteHitTest ( iSpriteIndex, x-d#, y-d# )
GetSpriteHitTest ( iSpriteIndex, x+d#, y-d# )
GetSpriteHitTest ( iSpriteIndex, x+d#, y+d# )
GetSpriteHitTest ( iSpriteIndex, x-d#, y+d# )
AGK (Steam) V2.0.18 : Windows 10 Pro 64 Bit : AMD (15.30.1025) Radeon R7 265 : Mac mini OS X 10.10 (Yosemite)
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2D Analyst
AGK Developer
20
Years of Service
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Joined: 2nd May 2004
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Posted: 12th Apr 2016 03:57
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Thanks, this is exactly what I'm looking for!
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Markus
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Joined: 10th Apr 2004
Location: Germany
Posted: 12th Apr 2016 07:46
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emmm, today i think hit test will always return 1 over your sprite.
after hit you can use a if then condition if the x is left or right from sprite center.
else maybe u can change the shape after hittest and make another hittest for left/right.
AGK (Steam) V2.0.18 : Windows 10 Pro 64 Bit : AMD (15.30.1025) Radeon R7 265 : Mac mini OS X 10.10 (Yosemite)
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