LÖVE 02 EXTRA - Videoaula em: https://youtu.be/1L3D-P8tZ0Q

main.lua

function love.load()
	Player       = {}
	Player.x     = 0
	Player.y     = 0
	Player.r     = 20
	Player.speed = 300
	Player.xvel  = Player.speed * math.cos(math.pi / 4)
	Player.yvel  = Player.speed * math.sin(math.pi / 4)

end

function love.update(dt)
	if love.keyboard.isDown("w") and love.keyboard.isDown("a") then
		Player.y = Player.y - Player.yvel * dt
		Player.x = Player.x - Player.xvel * dt
	elseif love.keyboard.isDown("a") and love.keyboard.isDown("s") then
		Player.y = Player.y + Player.yvel * dt
		Player.x = Player.x - Player.xvel * dt
	elseif love.keyboard.isDown("s") and love.keyboard.isDown("d") then
		Player.y = Player.y + Player.yvel * dt
		Player.x = Player.x + Player.xvel * dt
	elseif love.keyboard.isDown("d") and love.keyboard.isDown("w") then
		Player.y = Player.y - Player.yvel * dt
		Player.x = Player.x + Player.xvel * dt
	elseif love.keyboard.isDown("w") then
		Player.y = Player.y - Player.speed * dt
	elseif love.keyboard.isDown("a") then
		Player.x = Player.x - Player.speed * dt
	elseif love.keyboard.isDown("s") then
		Player.y = Player.y + Player.speed * dt
	elseif love.keyboard.isDown("d") then
		Player.x = Player.x + Player.speed * dt
	end

end

function love.draw()
	love.graphics.circle("line", Player.x, Player.y, Player.r)
end