Gridlocked

function love.load()
	player = {
		grid_x = 256,
		grid_y = 256,
		act_x = 256,
		act_y = 256,
		speed = 10
	}
	
	map = {
		{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
		{ 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 },
		{ 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1 },
		{ 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1 },
		{ 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1 },
		{ 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 },
		{ 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
		{ 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
		{ 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
		{ 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1 },
		{ 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 },
		{ 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 },
		{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }
	}
end

function love.update(dt)
	player.act_y = player.act_y - ((player.act_y - player.grid_y) * player.speed * dt)
	player.act_x = player.act_x - ((player.act_x - player.grid_x) * player.speed * dt)
end

function love.draw()
	love.graphics.rectangle("fill", player.act_x, player.act_y, 32, 32)
	if up == 1 then
	love.graphics.rectangle("line", player.act_x, player.act_y-32, 32, 32)
	end
end

function love.keypressed (key)
	if key == "up" then
		if testMap (0, -1) then
			player.grid_y = player.grid_y - 32
		else up=1
		end
	elseif key == "down" then
		if testMap (0, 1) then
			player.grid_y = player.grid_y + 32
		end
	elseif key == "left" then
		if testMap (-1, 0) then
			player.grid_x = player.grid_x - 32
		end
	elseif key == "right" then
		if testMap (1, 0) then
			player.grid_x = player.grid_x + 32
		end
	end
end

function testMap (x, y)
	if map[(player.grid_y / 32) + y][(player.grid_x / 32) + x] == 1 then
		return false
	end
	return true
end