function Animation:Draw()
	if self.sprite ~= nil then
		local relative_position_x = self.pos.x - Camera.pos.x
		local relative_position_y = self.pos.y - Camera.pos.y
		local origin_compensation_x = - ( (self.sprite_offset.x) * math.cos(self.sprite_rotation) - (self.sprite_offset.y) * math.sin(self.sprite_rotation))
		local origin_compensation_y = - ( (self.sprite_offset.x) * math.sin(self.sprite_rotation) + (self.sprite_offset.y) * math.cos(self.sprite_rotation))
		local dimensions_x = self.sprite_scale.x * self.sprite_flip.x
		local dimensions_y = self.sprite_scale.y * self.sprite_flip.y
		love.graphics.draw(
			self.sprite,
			relative_position_x + origin_compensation_x * dimensions_x,
			relative_position_y + origin_compensation_y * dimensions_y,
			self.sprite_rotation,
			self.sprite_scale.x * self.sprite_flip.x,
			self.sprite_scale.y * self.sprite_flip.y
		)
		if debug_collision then
		  love.graphics.setColor(1, 0, 0)
		  love.graphics.circle( "line", relative_position_x, relative_position_y, 2 )
		  love.graphics.setColor(0, 1 ,0)
		  love.graphics.circle( "line",
				relative_position_x + origin_compensation_x * dimensions_x,
				relative_position_y + origin_compensation_y * dimensions_y,
		    2
			)
		 end
	  love.graphics.setColor(1, 1 ,1)
	end
end

function Animation:New(anim,frames,speed)
	local anim_data = {
		frame = 1,
		subframe = 1,
		path = anim.path,
		frames = anim.frames,
		speed = anim.speed,
		imgs = anim.imgs
	}
	self.animations[#self.animations+1] = anim_data

	return self.animations[#self.animations]
end

function DrawAnimationFrame(animation, frame, x, y, rotate, sx, sy)
	local x = x or 0
	local y = y or 0
	local sx = sx or 1
	local sy = sy or 1
	love.graphics.draw(
		animation.imgs[frame],
		x - Camera.pos.x,
		y - Camera.pos.y,
		rotate,
		sx,
		sy
	)
end

function DrawAnimation(animation, x, y, rotate, sx, sy)
	local x = x or 0
	local y = y or 0
	local sx = sx or 1
	local sy = sy or 1
	if game_paused ~= true then
			-- try to animate
			animation.subframe = animation.subframe + current_dt

			if animation.subframe >= animation.speed then
				animation.frame = animation.frame + 1
				animation.subframe = animation.subframe - animation.speed
			end

			-- cycle
			if animation.frame >= animation.frames+1 then
				animation.frame = animation.frame - animation.frames
			end
		end
		love.graphics.draw(
			animation.imgs[animation.frame],
		  x - Camera.pos.x,
		  y - Camera.pos.y,
			rotate,
			sx,
			sy
		)
end

function Entity:Animate()
	if game_paused ~= true and self.anim.path ~= nil then
			-- try to animate
			self.anim.subframe = self.anim.subframe + current_dt

			if self.anim.subframe >= self.anim.speed then
				self.anim.frame = self.anim.frame + 1
				self.anim.subframe = self.anim.subframe - self.anim.speed
			end

			-- cycle
			if self.anim.frame >= self.anim.frames+1 then
				self.anim.frame = self.anim.frame - self.anim.frames
			end

			-- change
			self.sprite = self.anim.imgs[self.anim.frame]
		end
end

function Entity:LoadAnimation(anim,frames,speed)
	if self.anim.path ~= anim and self.anim.path ~= anim.path then
		if frames ~= nil and speed ~= nil then
			self.anim.path = anim or nil
			self.anim.frames = frames or 4
			self.anim.speed = speed or frames
		else
			self.anim.path = anim.path
			self.anim.frames = anim.frames
			self.anim.speed = anim.speed
		end

		self.anim.imgs = anim.imgs
	end
end

require "data/scripts/entities/kupo"
require "data/scripts/entities/arrow"
require "data/scripts/entities/player"