Bullet = Object:extend()

function Bullet:new(x, y, p, image)
	self.image = love.graphics.newImage(image)
	self.x = x
	self.y = y
	self.p = p
	self.width = self.image:getWidth()
	self.height = self.image:getHeight()
end

function Bullet:update(dt)
	--if bullet belongs to player 1, travel upwards
	if self.p == 1 then
		self.y = self.y - (500 * dt)
	--if bullet belongs to player 2, travel downwards
	elseif self.p == 2 then
		self.y = self.y + (500 * dt)
	end

	--check if the bullet has hit a player
	if self.p == 1 then
		if
			self.x < UserPlayer2.x + UserPlayer2.width
			and UserPlayer2.x < self.x + self.width
			and self.y < UserPlayer2.y + UserPlayer2.height
			and UserPlayer2.y < self.y + self.height
		then
			UserPlayer2.health = UserPlayer2.health - 1
			Bullets1 = {}
		end
	end

	--check if the bullet has hit a player
	if self.p == 2 then
		if
			self.x < UserPlayer1.x + UserPlayer1.width
			and UserPlayer1.x < self.x + self.width
			and self.y < UserPlayer1.y + UserPlayer1.height
			and UserPlayer1.y < self.y + self.height
		then
			UserPlayer1.health = UserPlayer1.health - 1
			Bullets2 = {}
		end
	end

	--check if the bullet has hit a wall
	for i, v in ipairs(Walls) do
		if self.x < v.x + v.w and v.x < self.x + self.width and self.y < v.y + v.h and v.y < self.y + self.height then
			if self.p == 1 then
				Bullets1 = {}
			elseif self.p == 2 then
				Bullets2 = {}
			end
		end
	end
end

function Bullet:clear()
	Bullets1 = {}
	Bullets2 = {}
end

function Bullet:draw()
	for _, v in ipairs(Bullets1) do
		love.graphics.draw(self.image, self.x, self.y)
	end
	for _, v in ipairs(Bullets2) do
		love.graphics.draw(self.image, self.x, self.y)
	end
end