1 files changed, 68 insertions, 0 deletions
diff --git a/not/Effect.lua b/not/Effect.lua
new file mode 100644
index 0000000..4e327a1
--- /dev/null
+++ b/not/Effect.lua
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+-- `Effect`
+-- Short animation with graphics that plays in various situation.
+
+-- Metatable of `Effect`
+-- nils initialized in constructor
+Effect = {
+	x = 0,
+	y = 0,
+	delay = 0.06,
+	initial = nil,
+	frame = 1,
+	animation = nil,
+	sprite = nil,
+	quads = require "effects"
+}
+
+-- Construct of `Effect`
+function Effect:new(name, x, y)
+	-- Meta
+	local o = {}
+	setmetatable(o, self)
+	self.__index = self
+	-- Load spritesheet to metatable if not yet loaded
+	if self.sprite == nil then
+		self.sprite = love.graphics.newImage("assets/effects.png")
+	end
+	-- Init
+	o.initial = o.delay
+	o.animation = name
+	o.x = x or self.x
+	o.y = y or self.y
+	return o
+end
+
+-- Position
+function Effect:getPosition()
+	return self.x, self.y
+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)
+	-- locals
+	local offset_x = offset_x or 0
+	local offset_y = offset_y or 0
+	local scale = scale or 1
+	local x, y = self:getPosition()
+	-- pixel grid
+	local draw_x = (math.floor(x) + offset_x) * scale
+	local draw_y = (math.floor(y) + offset_y) * scale
+	-- draw
+	love.graphics.setColor(255,255,255,255)
+	love.graphics.draw(self.sprite, self.quads[self.animation][self.frame], draw_x, draw_y, 0, scale, scale)
+end
+\ No newline at end of file