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-- push.lua v0.1
-- Copyright (c) 2016 Ulysse Ramage
-- 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:
-- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-- 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.
local push = {}
setmetatable(push, push)
function push:setupScreen(WWIDTH, WHEIGHT, RWIDTH, RHEIGHT, f)
f = f or {}
self._WWIDTH, self._WHEIGHT = WWIDTH, WHEIGHT
self._RWIDTH, self._RHEIGHT = RWIDTH, RHEIGHT
self._fullscreen = f.fullscreen or self._fullscreen or false
self._resizable = f.resizable or self._resizable or false
if f.canvas == nil then f.canvas = true end
love.window.setMode( self._RWIDTH, self._RHEIGHT, {fullscreen = self._fullscreen, borderless = false, resizable = self._resizable} )
self:initValues()
if f.canvas then self:createCanvas() end
self._borderColor = {0, 0, 0}
self._drawFunctions = {["start"]=push.start, ["end"]=push.finish}
end
function push:createCanvas()
self._canvas = love.graphics.newCanvas(self._WWIDTH, self._WHEIGHT)
end
function push:initValues()
self._SCALEX, self._SCALEY = self._RWIDTH/self._WWIDTH, self._RHEIGHT/self._WHEIGHT
self._SCALE = math.min(self._SCALEX, self._SCALEY)
self._OFFSET = {x = (self._SCALEX - self._SCALE) * (self._WWIDTH/2), y = (self._SCALEY - self._SCALE) * (self._WHEIGHT/2)}
self._GWIDTH, self._GHEIGHT = self._RWIDTH-self._OFFSET.x*2, self._RHEIGHT-self._OFFSET.y*2
self._INV_SCALE = 1/self._SCALE
end
function push:setShader(shader)
self._shader = shader
end
--[[ DEPRECATED ]]--
function push:apply(operation, shader)
if operation == "start" then
self:start()
elseif operation == "finish" or operation == "end" then
self:finish(shader)
end
end
function push:start()
if self._canvas then
love.graphics.push()
love.graphics.setCanvas(self._canvas)
else
love.graphics.translate(self._OFFSET.x, self._OFFSET.y)
love.graphics.setScissor(self._OFFSET.x, self._OFFSET.y, self._WWIDTH*self._SCALE, self._WHEIGHT*self._SCALE)
love.graphics.push()
love.graphics.scale(self._SCALE)
end
end
function push:finish(shader)
love.graphics.setBackgroundColor(unpack(self._borderColor))
if self._canvas then
love.graphics.pop()
love.graphics.setCanvas()
love.graphics.translate(self._OFFSET.x, self._OFFSET.y)
love.graphics.setColor(255, 255, 255)
love.graphics.setShader(shader or self._shader)
love.graphics.draw(self._canvas, 0, 0, 0, self._SCALE, self._SCALE)
love.graphics.setCanvas(self._canvas)
love.graphics.clear()
love.graphics.setCanvas()
love.graphics.setShader()
else
love.graphics.pop()
love.graphics.setScissor()
end
end
function push:calculateScale(offset)
self._SCALEX, self._SCALEY = self._RWIDTH/self._WWIDTH, self._RHEIGHT/self._WHEIGHT
self._SCALE = math.min(self._SCALEX, self._SCALEY)+offset
self._OFFSET = {x = (self._SCALEX - self._SCALE) * (self._WWIDTH/2), y = (self._SCALEY - self._SCALE) * (self._WHEIGHT/2)}
end
function push:setBorderColor(color, g, b)
self._borderColor = g and {color, g, b} or color
end
function push:toGame(x, y)
x, y = x-self._OFFSET.x, y-self._OFFSET.y
local normalX, normalY = x/self._GWIDTH, y/self._GHEIGHT
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
return x, y
end
--doesn't work - TODO
function push:toReal(x, y)
return x+self._OFFSET.x, y+self._OFFSET.y
end
function push:switchFullscreen(winw, winh)
self._fullscreen = not self._fullscreen
local windowWidth, windowHeight = love.window.getDesktopDimensions()
self._RWIDTH = self._fullscreen and windowWidth or winw or windowWidth*.5
self._RHEIGHT = self._fullscreen and windowHeight or winh or windowHeight*.5
self:initValues()
love.window.setFullscreen(self._fullscreen, "desktop")
end
function push:resize(w, h)
self._RWIDTH = w
self._RHEIGHT = h
self:initValues()
end
function push:getWidth() return self._WWIDTH end
function push:getHeight() return self._WHEIGHT end
function push:getDimensions() return self._WWIDTH, self._WHEIGHT end
return push
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