From 340a3a4b92de5495b47e8e1e102178edfd97514f Mon Sep 17 00:00:00 2001
From: Aki <nthirtyone@gmail.com>
Date: Sun, 19 Mar 2017 00:21:02 +0100
Subject: Night commit, added PhysicalBody, newImage to sprite

---
 not/Sprite.lua | 66 ++++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 44 insertions(+), 22 deletions(-)

(limited to 'not/Sprite.lua')

diff --git a/not/Sprite.lua b/not/Sprite.lua
index 1cc46f7..905816b 100644
--- a/not/Sprite.lua
+++ b/not/Sprite.lua
@@ -1,32 +1,54 @@
 -- `Sprite`
 -- Abstract class for drawable animated entities.
-
--- Metatable
 Sprite = {
-	animations--[[table with animations]],
-	current--[[animations.default]],
-	image--[[love.graphics.newImage()]],
+	animations =--[[table with animations]]nil,
+	current =--[[animations.default]]nil,
+	image =--[[love.graphics.newImage]]nil,
 	frame = 1,
 	delay = .1,
 }
 Sprite.__index = Sprite
 
+-- Constructor of `Sprite`.
+function Sprite:new (imagePath)
+	local o = setmetatable({}, self)
+	if type(imagePath) == "string" then
+		o:setImage(self.newImage(imagePath))
+	end
+	return o
+end
+
 -- Cleans up reference to image on deletion.
-function Sprite:delete()
+function Sprite:delete ()
 	self.image = nil
 end
 
--- Sets an Image as a image.
-function Sprite:setImage(image)
+-- Creates new Image object from path. Key-colours two shades of green. Static.
+function Sprite.newImage (path)
+	local imagedata = love.image.newImageData(path)
+	local transparency = function(x, y, r, g, b, a)
+		if (r == 0 and g == 128 and b == 64) or
+		   (r == 0 and g == 240 and b ==  6) then
+			a = 0
+		end
+		return r, g, b, a
+	end
+	imagedata:mapPixel(transparency)
+	local image = love.graphics.newImage(imagedata)
+	return image
+end
+
+-- Sets an Image as an image.
+function Sprite:setImage (image)
 	self.image = image
 end
 -- Returns current image Image.
-function Sprite:getImage()
+function Sprite:getImage ()
 	return self.image
 end
 
 -- Sets new animations list.
-function Sprite:setAnimationsList(t)
+function Sprite:setAnimationsList (t)
 	if t then
 		self.animations = t
 		self:setAnimation("default")
@@ -34,45 +56,45 @@ function Sprite:setAnimationsList(t)
 end
 
 -- Sets current animation by table key.
-function Sprite:setAnimation(animation)
+function Sprite:setAnimation (animation)
 	self.frame = 1
 	self.delay = Sprite.delay -- INITIAL from metatable
 	self.current = self.animations[animation]
 end
 -- Returns current animation table.
-function Sprite:getAnimation()
+function Sprite:getAnimation ()
 	return self.current
 end
 
 -- Get frame quad for drawing.
-function Sprite:getQuad()
+function Sprite:getQuad ()
 	if self.animations and self.current then
 		return self.current[self.frame]
 	end
 end
 
 -- Drawing self to LOVE2D buffer.
--- If there is no Quad, it will draw entire image.
-function Sprite:draw(...)
-	local s, q = self:getImage(), self:getQuad()
-	if s then
+-- If there is no Quad, it will draw entire image. It won't draw anything if there is no image.
+function Sprite:draw (...)
+	local i, q = self:getImage(), self:getQuad()
+	if i then
 		love.graphics.setColor(255,255,255,255)
-		if q then love.graphics.draw(s, q, ...)
-		else love.graphics.draw(s, ...) end
+		if q then love.graphics.draw(i, q, ...)
+		else love.graphics.draw(i, ...) end
 	end
 end
 -- Animation updating.
-function Sprite:update(dt)
+function Sprite:update (dt)
 	if self.animations and self.current then
 		self.delay = self.delay - dt
 		if self.delay < 0 then
 			self.delay = self.delay + Sprite.delay -- INITIAL from metatable
-			self:nextFrame()
+			self:goToNextFrame()
 		end
 	end
 end
 -- Moving to the next frame.
-function Sprite:nextFrame()
+function Sprite:goToNextFrame ()
 	if self.current.repeated or not (self.frame == self.current.frames) then
 		self.frame = (self.frame % self.current.frames) + 1
 	else
-- 
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