Merge branch 'animations'

1 files changed, 81 insertions, 0 deletions

diff --git a/animated.lua b/animated.lua
new file mode 100644
index 0000000..160ee44
--- /dev/null
+++ b/animated.lua
@@ -0,0 +1,81 @@
+-- `Animated`
+-- Abstract class for drawable animated entities.
+
+-- Metatable
+Animated = {
+	animations--[[table with animations]],
+	current--[[animations.default]],
+	sprite--[[love.graphics.newImage()]],
+	frame = 1,
+	delay = .1,
+}
+Animated.__index = Animated
+
+-- Cleans up reference to sprite on deletion.
+function Animated:delete()
+	self.sprite = nil
+end
+
+-- Sets an Image as a sprite.
+function Animated:setSprite(image)
+	self.sprite = image
+end
+-- Returns current sprite Image.
+function Animated:getSprite()
+	return self.sprite
+end
+
+-- Sets new animations list.
+function Animated:setAnimationsList(t)
+	if t then
+		self.animations = t
+		self:setAnimation("default")
+	end
+end
+
+-- Sets current animation by table key.
+function Animated:setAnimation(animation)
+	self.frame = 1
+	self.delay = Animated.delay -- INITIAL from metatable
+	self.current = self.animations[animation]
+end
+-- Returns current animation table.
+function Animated:getAnimation()
+	return self.current
+end
+
+-- Get frame quad for drawing.
+function Animated: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 sprite.
+function Animated:draw(...)
+	local s, q = self:getSprite(), self:getQuad()
+	if s then
+		love.graphics.setColor(255,255,255,255)
+		if q then love.graphics.draw(s, q, ...)
+		else love.graphics.draw(s, ...) end
+	end
+end
+-- Animation updating.
+function Animated:update(dt)
+	if self.animations and self.current then
+		self.delay = self.delay - dt
+		if self.delay < 0 then
+			self.delay = self.delay + Animated.delay -- INITIAL from metatable
+			self:nextFrame()
+		end
+	end
+end
+-- Moving to the next frame.
+function Animated:nextFrame()
+	if self.current.repeated or not (self.frame == self.current.frames) then
+		self.frame = (self.frame % self.current.frames) + 1
+	else
+		self:setAnimation("default")
+	end
+end
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