132 lines
4.9 KiB
Lua
132 lines
4.9 KiB
Lua
-- push.lua v0.1
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-- Copyright (c) 2016 Ulysse Ramage
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-- Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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-- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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local push = {}
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setmetatable(push, push)
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function push:setupScreen(WWIDTH, WHEIGHT, RWIDTH, RHEIGHT, f)
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f = f or {}
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self._WWIDTH, self._WHEIGHT = WWIDTH, WHEIGHT
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self._RWIDTH, self._RHEIGHT = RWIDTH, RHEIGHT
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self._fullscreen = f.fullscreen or self._fullscreen or false
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self._resizable = f.resizable or self._resizable or false
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if f.canvas == nil then f.canvas = true end
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love.window.setMode( self._RWIDTH, self._RHEIGHT, {fullscreen = self._fullscreen, borderless = false, resizable = self._resizable} )
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self:initValues()
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if f.canvas then self:createCanvas() end
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self._borderColor = {0, 0, 0}
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self._drawFunctions = {["start"]=push.start, ["end"]=push.finish}
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end
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function push:createCanvas()
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self._canvas = love.graphics.newCanvas(self._WWIDTH, self._WHEIGHT)
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end
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function push:initValues()
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self._SCALEX, self._SCALEY = self._RWIDTH/self._WWIDTH, self._RHEIGHT/self._WHEIGHT
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self._SCALE = math.min(self._SCALEX, self._SCALEY)
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self._OFFSET = {x = (self._SCALEX - self._SCALE) * (self._WWIDTH/2), y = (self._SCALEY - self._SCALE) * (self._WHEIGHT/2)}
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self._GWIDTH, self._GHEIGHT = self._RWIDTH-self._OFFSET.x*2, self._RHEIGHT-self._OFFSET.y*2
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self._INV_SCALE = 1/self._SCALE
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end
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function push:setShader(shader)
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self._shader = shader
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end
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--[[ DEPRECATED ]]--
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function push:apply(operation, shader)
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if operation == "start" then
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self:start()
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elseif operation == "finish" or operation == "end" then
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self:finish(shader)
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end
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end
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function push:start()
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if self._canvas then
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love.graphics.push()
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love.graphics.setCanvas(self._canvas)
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else
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love.graphics.translate(self._OFFSET.x, self._OFFSET.y)
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love.graphics.setScissor(self._OFFSET.x, self._OFFSET.y, self._WWIDTH*self._SCALE, self._WHEIGHT*self._SCALE)
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love.graphics.push()
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love.graphics.scale(self._SCALE)
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end
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end
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function push:finish(shader)
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love.graphics.setBackgroundColor(unpack(self._borderColor))
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if self._canvas then
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love.graphics.pop()
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love.graphics.setCanvas()
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love.graphics.translate(self._OFFSET.x, self._OFFSET.y)
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love.graphics.setColor(1.0, 1.0, 1.0)
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love.graphics.setShader(shader or self._shader)
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love.graphics.draw(self._canvas, 0, 0, 0, self._SCALE, self._SCALE)
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love.graphics.setCanvas(self._canvas)
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love.graphics.clear()
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love.graphics.setCanvas()
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love.graphics.setShader()
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else
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love.graphics.pop()
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love.graphics.setScissor()
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end
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end
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function push:calculateScale(offset)
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self._SCALEX, self._SCALEY = self._RWIDTH/self._WWIDTH, self._RHEIGHT/self._WHEIGHT
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self._SCALE = math.min(self._SCALEX, self._SCALEY)+offset
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self._OFFSET = {x = (self._SCALEX - self._SCALE) * (self._WWIDTH/2), y = (self._SCALEY - self._SCALE) * (self._WHEIGHT/2)}
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end
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function push:setBorderColor(color, g, b)
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self._borderColor = g and {color, g, b} or color
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end
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function push:toGame(x, y)
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x, y = x-self._OFFSET.x, y-self._OFFSET.y
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local normalX, normalY = x/self._GWIDTH, y/self._GHEIGHT
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x, y = (x>=0 and x<=self._WWIDTH*self._SCALE) and normalX*self._WWIDTH or nil, (y>=0 and y<=self._WHEIGHT*self._SCALE) and normalY*self._WHEIGHT or nil
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return x, y
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end
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--doesn't work - TODO
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function push:toReal(x, y)
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return x+self._OFFSET.x, y+self._OFFSET.y
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end
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function push:switchFullscreen(winw, winh)
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self._fullscreen = not self._fullscreen
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local windowWidth, windowHeight = love.window.getDesktopDimensions()
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self._RWIDTH = self._fullscreen and windowWidth or winw or windowWidth*.5
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self._RHEIGHT = self._fullscreen and windowHeight or winh or windowHeight*.5
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self:initValues()
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love.window.setFullscreen(self._fullscreen, "desktop")
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end
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function push:resize(w, h)
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self._RWIDTH = w
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self._RHEIGHT = h
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self:initValues()
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end
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function push:getWidth() return self._WWIDTH end
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function push:getHeight() return self._WHEIGHT end
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function push:getDimensions() return self._WWIDTH, self._WHEIGHT end
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return push
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