func (player *Player) PacketWindowClick(windowId WindowId, slotId SlotId, rightClick bool, txId TxId, shiftClick bool, expectedSlot *proto.WindowSlot) {
player.lock.Lock()
defer player.lock.Unlock()
// Note that the expectedSlot parameter is currently ignored. The item(s)
// involved are worked out from the server-side data.
// TODO use the expectedSlot as a conditions for the click, and base the
// transaction result on that.
// Determine which inventory window is involved.
// TODO support for more windows
var clickedWindow window.IWindow
if windowId == WindowIdInventory {
clickedWindow = &player.inventory
} else if player.curWindow != nil && player.curWindow.WindowId() == windowId {
clickedWindow = player.curWindow
} else {
log.Printf(
"Warning: ignored window click on unknown window ID %d",
windowId)
}
expectedSlotContent := &gamerules.Slot{
ItemTypeId: expectedSlot.ItemTypeId,
Count: expectedSlot.Count,
Data: expectedSlot.Data,
}
// The client tends to send item IDs even when the count is zero.
expectedSlotContent.Normalize()
txState := TxStateRejected
click := gamerules.Click{
SlotId: slotId,
Cursor: player.cursor,
RightClick: rightClick,
ShiftClick: shiftClick,
TxId: txId,
}
click.ExpectedSlot.SetWindowSlot(expectedSlot)
if clickedWindow != nil {
txState = clickedWindow.Click(&click)
}
switch txState {
case TxStateAccepted, TxStateRejected:
// Inform client of operation status.
buf := new(bytes.Buffer)
proto.WriteWindowTransaction(buf, windowId, txId, txState == TxStateAccepted)
player.cursor = click.Cursor
player.cursor.SendUpdate(buf, WindowIdCursor, SlotIdCursor)
player.TransmitPacket(buf.Bytes())
case TxStateDeferred:
// The remote inventory should send the transaction outcome.
}
}
func (player *Player) inventoryTxState(block *BlockXyz, txId TxId, accepted bool) {
if player.remoteInv == nil || !player.remoteInv.IsForBlock(block) || player.curWindow == nil {
return
}
buf := new(bytes.Buffer)
proto.WriteWindowTransaction(buf, player.curWindow.WindowId(), txId, accepted)
player.TransmitPacket(buf.Bytes())
}