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https://github.com/aseprite/aseprite.git
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73 lines
1.5 KiB
Lua
73 lines
1.5 KiB
Lua
-- Copyright (C) 2018 David Capello
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--
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-- This file is released under the terms of the MIT license.
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-- Read LICENSE.txt for more information.
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local pc = app.pixelColor
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-- Iterate pixels
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do
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local spr = Sprite(2, 2)
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local image = app.site.image
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local colors = { pc.rgba(255, 0, 0, 255),
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pc.rgba(0, 255, 0, 255),
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pc.rgba(255, 0, 255, 255),
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pc.rgba(255, 0, 255, 255) }
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local xy = {
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{ x=0, y=0 },
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{ x=1, y=0 },
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{ x=0, y=1 },
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{ x=1, y=1 } }
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local c = 1
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for y=0,image.height-1 do
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for x=0,image.width-1 do
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image:putPixel(x, y, colors[c])
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c = c+1
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end
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end
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c = 1
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for y=0,image.height-1 do
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for x=0,image.width-1 do
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assert(colors[c] == image:getPixel(x, y))
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c = c+1
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end
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end
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c = 1
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for it in image:pixels() do
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assert(colors[c] == it())
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assert(xy[c].x == it.x)
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assert(xy[c].y == it.y)
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c = c+1
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end
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c = 0
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for it in image:pixels{x=1, y=0, width=1, height=2} do
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local i = 1 + it.y*2 + it.x
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assert(colors[i] == it())
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assert(xy[i].x == it.x)
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assert(xy[i].y == it.y)
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c = c + 1
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end
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assert(c == 2)
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-- Iterating outside
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for it in image:pixels{x=2, y=0, width=2, height=2} do
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assert(false)
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end
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c = 1
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for it in image:pixels() do
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it(pc.rgba(255, 32*c, 0, 255))
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c = c+1
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end
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c = 1
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for it in image:pixels() do
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assert(pc.rgba(255, 32*c, 0, 255) == it())
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c = c+1
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end
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end
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