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AppGameKit Classic Chat / [SOLVED] Cropping sprites

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marvin944

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Joined: 27th Aug 2013

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Posted: 16th Jun 2018 12:55

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What would be the easiest way to crop a sprite? Or before attaching the image to it, the image... I would love to have a crop command on images...

Marvin

Dutch

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marvin944

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Joined: 27th Aug 2013

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Posted: 16th Jun 2018 12:57

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I should have done a search first

Found sprite scissor! (but still, cropping original image would save memory)

Dutch

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PartTimeCoder

AGK Tool Maker

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Joined: 9th Mar 2015

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Posted: 16th Jun 2018 14:17

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you can loadup the original image, grab the area you want and unload the original.

a quick and crude example

+ Code Snippet

crop_down_x=-1
crop_down_y=-1
crop_up_x=-1
crop_up_y=-1

global spr_test

img_source=LoadImage("test.png")
spr_test=CreateSprite(img_source)

do
	
	mouse_x=GetPointerX()
	mouse_y=GetPointerY()
	
    if GetRawMouseLeftPressed()
		crop_down_x=mouse_x
		crop_down_y=mouse_y
	endif 
    if GetRawMouseLeftState()
		DrawBox(crop_down_x, crop_down_y, mouse_x, mouse_y, c_red, c_red, c_red, c_red, 0)
	endif
    if GetRawMouseLeftReleased()
		crop_up_x=mouse_x
		crop_up_y=mouse_y
		CropImage(crop_down_x, crop_down_y, crop_up_x, crop_up_y)
	endif 
    
    Print( ScreenFPS() )
    Sync()
loop

function CropImage(x1, y1, x2, y2)
	old_image=GetSpriteImageID(spr_test)
	render()
	new_image=GetImage(x1, y1, x2-x1, y2-y1)
	ClearScreen ()
	SetSpriteImage(spr_test, new_image)
	SetSpriteSize(spr_test, x2-x1, y2-y1)
	deleteimage(old_image)
endfunction