65 lines
2 KiB
Lua
65 lines
2 KiB
Lua
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-- rect.lua :: a 2D rectangle.
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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 Point = require "birb.objects.2D.point"
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local Rect = Point:extend()
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function Rect:new(x, y, w, h)
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Rect.super.new(self, x, y)
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self:setSize(w, h)
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end
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function Rect:setSize(w, h)
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self.w = w or self.w
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self.h = h or self.h
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end
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function Rect:getArea()
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local x, y = self:getPosition()
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return x, y, self.w, self.h
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end
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function Rect:getCorners()
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local x, y, w, h = self:getArea()
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return x, y, x + w, y + h
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end
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function Rect:getCenter()
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local x, y, w, h = self:getArea()
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return math.floor(x + (w/2)), math.floor(y + (h/2))
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end
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function Rect:areCoordInside(dx, dy)
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local x, y, w, h = self:getArea()
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return ((dx > x) and (dx < x + w) and (dy > y) and (dy < y + h))
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end
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function Rect:getRelativeCoordinate(dx, dy)
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return dx - self.x, dy - self.y
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end
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function Rect:drawBox()
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utils.graphics.box(self.x, self.y, self.w, self.h)
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end
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return Rect
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