COMMENT <p>This action happens in 3 stages. Stage 0 signals that the drag has begun, and stage 2 signals that the drag has ended. In between multiple stage 1s signal which slots were dragged on.
COMMENT <p>The stage is packed into the click data along with the mouse button that was clicked. See {@link net.minecraft.screen.ScreenHandler#packQuickCraftData(int, int) ScreenHandler.packQuickCraftData(int, int)} for details.
COMMENT Performs a normal slot click. This can pickup or place items in the slot, possibly merging the cursor stack into the slot, or swapping the slot stack with the cursor stack if they can't be merged.
COMMENT Exchanges items between a slot and a hotbar slot. This is usually triggered by the player pressing a 1-9 number key while hovering over a slot.
COMMENT Throws the item out of the inventory. This is usually triggered by the player pressing Q while hovering over a slot, or clicking outside the window.