From eb8b36111c308deed093c1eda6794cb52fcbe227 Mon Sep 17 00:00:00 2001
From: Aki <nthirtyone@gmail.com>
Date: Tue, 17 May 2016 00:55:02 +0200
Subject: Effects added

---
 effect.lua | 97 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 effect.lua

(limited to 'effect.lua')

diff --git a/effect.lua b/effect.lua
new file mode 100644
index 0000000..6651916
--- /dev/null
+++ b/effect.lua
@@ -0,0 +1,97 @@
+-- `Effect`
+-- Short animation with graphics that plays in various situation.
+
+-- Metatable of `Effect`
+-- nils initialized in constructor
+Effect = {
+	x = 0,
+	y = 0,
+	delay = 0.08,
+	initial = nil,
+	frame = 1,
+	animation = nil,
+	sprite = love.graphics.newImage("assets/effects.png"),
+	quads = {
+		jump = {
+			[1] = love.graphics.newQuad(  0,  0, 24,24, 168,120),
+			[2] = love.graphics.newQuad( 24,  0, 24,24, 168,120),
+			[3] = love.graphics.newQuad( 48,  0, 24,24, 168,120),
+			[4] = love.graphics.newQuad( 72,  0, 24,24, 168,120),
+			frames = 4
+		},
+		doublejump = {
+			[1] = love.graphics.newQuad(  0, 24, 24,24, 168,120),
+			[2] = love.graphics.newQuad( 24, 24, 24,24, 168,120),
+			[3] = love.graphics.newQuad( 48, 24, 24,24, 168,120),
+			[4] = love.graphics.newQuad( 72, 24, 24,24, 168,120),
+			frames = 4
+		},
+		land = {
+			[1] = love.graphics.newQuad(  0, 48, 24,24, 168,120),
+			[2] = love.graphics.newQuad( 24, 48, 24,24, 168,120),
+			[3] = love.graphics.newQuad( 48, 48, 24,24, 168,120),
+			[4] = love.graphics.newQuad( 72, 48, 24,24, 168,120),
+			[5] = love.graphics.newQuad( 96, 48, 24,24, 168,120),
+			frames = 5
+		},
+		respawn = {},
+		clash = {},
+		trail = {},
+		hit = {}
+	}
+}
+
+-- NAME      :POSITION :SIZE :FRAMES
+-- jump      :x  0 y  0: 24px: 4
+-- doublejump:x  0 y 24: 24px: 4
+-- land      :x  0 y 48: 24px: 5
+-- respawn   :x  0 y 72: 24px: 7
+-- clash     :x  0 y 96: 24px: 6
+-- trail     :x104 y  0: 16px: 4
+-- hit       :x106 y 18: 16px: 3
+
+-- Construct of `Effect`
+function Effect:new(name, x, y)
+	-- Meta
+	local o = {}
+	setmetatable(o, self)
+	self.__index = self
+	-- Set filter
+	local min, mag = self.sprite:getFilter()
+	if min ~= "nearest" or
+	   mag ~= "nearest" then
+		self.sprite:setFilter("nearest", "nearest")
+	end
+	-- Init
+	o.initial = o.delay
+	o.animation = name
+	o.x = x or self.x
+	o.y = y or self.y
+	return o
+end
+
+-- Animation and return flag for deletion after completion
+-- returns true if completed and ready to delete
+function Effect:update(dt)
+	self.delay = self.delay - dt
+	if self.delay < 0 then
+		if self.frame < self.quads[self.animation].frames then
+			self.frame = self.frame + 1
+			self.delay = self.delay + self.initial
+		else
+			return true -- delete
+		end
+	end
+	return false
+end
+
+-- Draw me with scale and offsets, senpai
+function Effect:draw(offset_x, offset_y, scale)
+	-- defaults
+	local offset_x = offset_x or 0
+	local offset_y = offset_y or 0
+	local scale = scale or 1
+	-- draw
+	love.graphics.setColor(255,255,255,255)
+	love.graphics.draw(self.sprite, self.quads[self.animation][self.frame], (self.x+offset_x)*scale, (self.y+offset_y)*scale, 0, scale, scale)
+end
\ No newline at end of file
-- 
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