62 lines
2.3 KiB
Lua
62 lines
2.3 KiB
Lua
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-- assets/texture :: the texture object, essentially used to be able to draw easily
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-- the mask of the texture (used for stuff like flashing sprite, etc)
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--[[
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Copyright © 2019 Kazhnuz
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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]]
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local Texture = Object:extend()
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local function getMask(x, y, r, g, b, a)
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-- template for defining your own pixel mapping function
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-- perform computations giving the new values for r, g, b and a
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-- ...
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return 1, 1, 1, a
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end
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function Texture:new(filename)
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self.imageData = love.image.newImageData(filename)
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local maskData = self.imageData:clone()
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maskData:mapPixel( getMask )
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self.image = love.graphics.newImage( self.imageData )
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self.mask = love.graphics.newImage( maskData )
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end
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function Texture:draw(x, y, r, sx, sy, ox, oy, kx, ky)
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love.graphics.draw(self.image, x, y, r, sx, sy, ox, oy, kx, ky)
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end
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function Texture:drawQuad(quad, x, y, r, sx, sy, ox, oy, kx, ky)
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love.graphics.draw(self.image, quad, x, y, r, sx, sy, ox, oy, kx, ky)
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end
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function Texture:drawMask(x, y, r, sx, sy, ox, oy, kx, ky)
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love.graphics.draw(self.mask, x, y, r, sx, sy, ox, oy, kx, ky)
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end
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function Texture:drawMaskQuad(quad, x, y, r, sx, sy, ox, oy, kx, ky)
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love.graphics.draw(self.mask, quad, x, y, r, sx, sy, ox, oy, kx, ky)
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end
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return Texture
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