LÖVE

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function mode_jump(mode)
	--Sets jump
	if mode == 'ground' then
		player.mode = 'jump'
		player.yvel = -400
	end
	--Idea is to double jump with this
	if mode == 'double jump' then
		player.mode = 'dJump'
		player.yvel = player.y - 400
	end
end

function player.jump(dt)
	player.yvel = player.yvel + gravity * dt

	-- player.mode is set to ground, when space is pressed it runs mode_jump('ground')
	if love.keyboard.isDown(' ') and player.mode == 'ground' then
		mode_jump('ground')
	end
	
	--the idea of this script is to grant the ability to double jump
	--checks if player is in the air
	if player.mode == 'jump' and player.yvel > 0 then
		player.mode = 'air'
		--if player is in the air
		if player.mode == 'air' then
			--idea is to let them jump again while player.dJump = true
			--my idea is to make double jump a power-up
			if love.keyboard.isDown(' ') and player.dJump == true then
				mode_jump('double jump')
			end
		end
	--resets player.mode so you can jump again
	elseif player.mode == 'air' or 'dJump' and player.y == ground_level - player.height and player.yvel >= 0 then
		player.mode = 'ground'
	end

	player.x = player.x + player.xvel * dt
	player.y = player.y + player.yvel * dt

end

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function jump_mode(mode)
	if mode == 'ground' then
		if player.mode == 'ground' then
			player.mode = 'jump'
			player.yv = -400
		end
	end
end

function player.jump(dt)
	player.yv = player.yv + gravity * dt
	
	if player.mode == 'jump' and player.yv > 0 then
		player.mode = 'air'
	end
	if player.mode == 'air' then 
		if player.dJump == false and player.y == ground_level - player.height and player.yv > 0 then
			player.jumpsleft = 1
			player.mode = 'ground'
		elseif player.dJump == true and player.y == ground_level - player.height and player.yv > 0 then
			player.jumpsleft = 2
			player.mode = 'ground'
		end
	end
	
	player.x = player.x + player.xv * dt
	player.y = player.y + player.yv * dt
end

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function love.keypressed(key, isrepeat)
	if gameState == "playing" then
		if player.dJump == false then
			player.jumpsleft = 1
		end
		if player.dJump == true then
			player.jumpsleft = 2
		end
		if key == ' ' then
		jump_mode('ground')
		player.jumpsleft = player.jumpsleft - 1
			if player.jumpsleft == 1 then
				jump_mode('ground')
				player.jumpsleft = 0
			end
		end
	end
end

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function love.keypressed(key, isrepeat)
   if key == ' ' then
      player:jump()
   end
end

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function player:jump()
   if self.jumpsLeft > 0 and self.mode ~= 'jump' then
      self.jumpsLeft = self.jumpsLeft - 1
      self.mode = 'jump'
      self.yv = -400
   end
end

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function player:update(dt)
   -- Move player based on velocity and gravity
   self.yv = self.yv + gravity * dt
   self.x = self.x + self.xv * dt
   self.y = self.y + self.yv * dt

   -- move to ground if necesarry
   if self.y + self.height >= ground_level then
      self.mode = 'ground'
      self.yv = 0
      self.y = ground_level - self.height
   end

   -- reset jump count if on ground
   if self.mode == 'ground' then
      if self.dJump then
         self.jumpsLeft = 2
      else
         self.jumpsLeft = 1
      end
   end

   -- switch mode to 'air' if moving down and not on ground.
   if self.mode == 'jump' and self.yv > 0 then
      self.mode = 'air'
   end
end