added a timer for cleaner execution, goodbye resolver!

main.lua

@@ -59,6 +59,7 @@ function love.load()
   input:bind(love.keyboard.getKeyFromScancode('d'), 'moveRight')
   input:bind(love.keyboard.getKeyFromScancode('s'), 'moveDown')
   input:bind(love.keyboard.getKeyFromScancode('space'), 'switch')
+  input:bind(love.keyboard.getKeyFromScancode('lshift'), 'detach')
 
   crates:init(world, magnet)
   crates:spawn(120, 400)
@@ -91,6 +92,13 @@ function love.update(dt)
     else
       magnet.side = 'LEFT'
     end
+  elseif input:pressed('detach') then
+    velocity = {0, 0}
+
+    local attached = crates:getAttached()
+    for key in pairs(attached) do
+      crates:detach(key)
+    end
   else
     if input:down('moveUp') or input:down('moveLeft') or input:down('moveRight') or input:down('moveDown') then
       if input:down('moveUp') then velocity[2] = -player.maxSpeed.y