c11db7d444
With LOVE 11.0 it is no longer possible to retrieve an ImageData from an Image and thus there is no posibility to retrieve the alpha value of a single pixel. Another solution would be to additionally supply an ImageData to the ImageButton in order to be able to retrieve the alpha values.
40 lines
1.2 KiB
Lua
40 lines
1.2 KiB
Lua
-- This file is part of SUIT, copyright (c) 2016 Matthias Richter
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local BASE = (...):match('(.-)[^%.]+$')
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return function(core, normal, ...)
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local opt, x,y = core.getOptionsAndSize(...)
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opt.normal = normal or opt.normal or opt[1]
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opt.hovered = opt.hovered or opt[2] or opt.normal
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opt.active = opt.active or opt[3] or opt.hovered
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assert(opt.normal, "Need at least `normal' state image")
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opt.id = opt.id or opt.normal
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opt.state = core:registerMouseHit(opt.id, x,y, function(u,v)
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u, v = math.floor(u+.5), math.floor(v+.5)
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if u < 0 or u >= opt.normal:getWidth() or v < 0 or v >= opt.normal:getHeight() then
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return false
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end
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return true
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end)
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local img = opt.normal
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if core:isActive(opt.id) then
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img = opt.active
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elseif core:isHovered(opt.id) then
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img = opt.hovered
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end
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core:registerDraw(opt.draw or function(img,x,y, r,g,b,a)
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love.graphics.setColor(r,g,b,a)
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love.graphics.draw(img,x,y)
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end, img, x,y, love.graphics.getColor())
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return {
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id = opt.id,
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hit = core:mouseReleasedOn(opt.id),
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hovered = core:isHovered(opt.id),
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entered = core:isHovered(opt.id) and not core:wasHovered(opt.id),
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left = not core:isHovered(opt.id) and core:wasHovered(opt.id)
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}
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end
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