func (c *Client) handleBlock(g *Game, w *game.World, m *proto.MsgBlock) {
// Eventually we should simulate block placement/removal entirely
// on the server side, but for now, this works fairly well.
inv := c.player.Inventory()
curBlock := w.Block(m.Pos)
if curBlock == mapgen.BLOCK_AIR {
// If we are changing AIR to AIR (caused by a race condition) ignore it.
if m.Type == mapgen.BLOCK_AIR {
return
}
// Placing a block
item := game.ItemFromBlock(m.Type)
if inv.RemoveItem(item) {
w.ChangeBlock(m.Pos, m.Type)
} else {
log.Println("Rejecting attempt to place block that is not in inventory!")
c.sendBlockChanged(m.Pos, curBlock)
}
} else {
if !curBlock.Mineable() {
log.Println("Attempt to mine unmineable block rejected!")
c.sendBlockChanged(m.Pos, curBlock)
return
}
// Removing a block
item := game.ItemFromBlock(curBlock)
w.AddEntity(game.NewWorldItem(item, m.Pos.Center()))
w.ChangeBlock(m.Pos, mapgen.BLOCK_AIR)
}
c.Send(&proto.MsgInventoryState{
Items: c.player.Inventory().ItemsToByteArray(),
})
}
