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minetest-engine-minecheat
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Fix "ghost" blocks if block update is "on wire" while player digs nodes

stable-0.4
sapier 2014-07-12 20:20:11 +02:00
parent 247a1ebf23
commit 8e9d896f2d
3 changed files with 31 additions and 7 deletions
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7
src/clientiface.cpp
View File

@ -52,6 +52,13 @@ std::string ClientInterface::state2Name(ClientState state)
return statenames[state];
}
void RemoteClient::ResendBlockIfOnWire(v3s16 p)
{
// if this block is on wire, mark it for sending again as soon as possible
if (m_blocks_sending.find(p) != m_blocks_sending.end()) {
SetBlockNotSent(p);
}
}
void RemoteClient::GetNextBlocks(
ServerEnvironment *env,

8
src/clientiface.h
View File

@ -238,6 +238,14 @@ public:
void SetBlockNotSent(v3s16 p);
void SetBlocksNotSent(std::map<v3s16, MapBlock*> &blocks);
/**
* tell client about this block being modified right now.
* this information is required to requeue the block in case it's "on wire"
* while modification is processed by server
* @param p position of modified block
*/
void ResendBlockIfOnWire(v3s16 p);
s32 SendingCount()
{
return m_blocks_sending.size();

19
src/server.cpp
View File

@ -2545,14 +2545,17 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
m_script->node_on_dig(p_under, n, playersao);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
RemoteClient *client = getClient(peer_id);
// Send unusual result (that is, node not being removed)
if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR)
{
// Re-send block to revert change on client-side
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
client->SetBlockNotSent(blockpos);
}
else {
client->ResendBlockIfOnWire(blockpos);
}
}
} // action == 2
@ -2594,15 +2597,21 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
// If item has node placement prediction, always send the
// blocks to make sure the client knows what exactly happened
if(item.getDefinition(m_itemdef).node_placement_prediction != ""){
RemoteClient *client = getClient(peer_id);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
client->SetBlockNotSent(blockpos);
v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
if(blockpos2 != blockpos){
if(item.getDefinition(m_itemdef).node_placement_prediction != "") {
client->SetBlockNotSent(blockpos);
if(blockpos2 != blockpos) {
client->SetBlockNotSent(blockpos2);
}
}
else {
client->ResendBlockIfOnWire(blockpos);
if(blockpos2 != blockpos) {
client->ResendBlockIfOnWire(blockpos2);
}
}
} // action == 3
/*