75 lines
1.6 KiB
Lua
75 lines
1.6 KiB
Lua
local Object = require "lib/classic"
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local NineSlice = Object:extend()
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function NineSlice:new(atlas, sprites)
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self.atlas = atlas
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self.sprites = sprites
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end
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function NineSlice:draw(x, y, width, height)
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local function draw(sprite, tx, ty)
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local atlas = self.atlas
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local sw = atlas.sw
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local sh = atlas.sh
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local gx = x + tx * sw
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local gy = y + ty * sh
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if sprite then
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atlas:draw(sprite, gx, gy)
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else
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love.graphics.rectangle("fill", gx, gy, sw, sh)
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end
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end
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--common variables
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local right = width - 1
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local bottom = height - 1
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local sprites = self.sprites
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if width == 1 and height == 1 then
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draw(sprites.only_center, 0, 0)
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elseif width == 1 then
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draw(sprites.vert_top, 0, 0)
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draw(sprites.vert_bottom, 0, bottom)
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for cy = 1, bottom - 1 do
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draw(sprites.vert_center, 0, cy)
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end
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elseif height == 1 then
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draw(sprites.hori_left, 0, 0)
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draw(sprites.hori_right, right, 0)
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for cx = 1, right - 1 do
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draw(sprites.hori_center, cx, 0)
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end
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else
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--draw corners
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draw(sprites.tl, 0, 0)
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draw(sprites.tr, right, 0)
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draw(sprites.bl, 0, bottom)
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draw(sprites.br, right, bottom)
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--horizontal edges
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for cx = 1, right - 1 do
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draw(sprites.top, cx, 0)
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draw(sprites.bottom, cx, bottom)
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end
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--vertical edges
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for cy = 1, bottom - 1 do
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draw(sprites.left, 0, cy)
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draw(sprites.right, right, cy)
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end
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--draw center
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for cx = 1, right - 1 do
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for cy = 1, bottom - 1 do
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draw(sprites.center, cx, cy)
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end
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end
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end
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end
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return NineSlice
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