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-rw-r--r--src/Blocks/BlockPiston.cpp59
-rw-r--r--src/ChunkMap.cpp22
-rw-r--r--src/ChunkMap.h4
-rw-r--r--src/ClientHandle.cpp10
-rw-r--r--src/Entities/Player.cpp7
-rw-r--r--src/Items/ItemBed.h5
-rw-r--r--src/Items/ItemBigFlower.h5
-rw-r--r--src/Items/ItemDoor.h5
-rw-r--r--src/Items/ItemDye.h6
-rw-r--r--src/Items/ItemEyeOfEnder.h4
-rw-r--r--src/Items/ItemHoe.h5
-rw-r--r--src/Items/ItemShears.h5
-rw-r--r--src/UI/SlotArea.cpp7
-rw-r--r--src/World.cpp34
14 files changed, 129 insertions, 49 deletions
diff --git a/src/Blocks/BlockPiston.cpp b/src/Blocks/BlockPiston.cpp
index 124757b44..568e2eaa5 100644
--- a/src/Blocks/BlockPiston.cpp
+++ b/src/Blocks/BlockPiston.cpp
@@ -48,8 +48,12 @@ void cBlockPistonHandler::ExtendPiston(Vector3i a_BlockPos, cWorld & a_World)
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
- a_World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta);
- a_World.BroadcastBlockAction(a_BlockPos, PistonExtendAction, pistonMeta, pistonBlock);
+ if (a_World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta))
+ {
+ a_World.BroadcastBlockAction(
+ a_BlockPos, PistonExtendAction, pistonMeta, pistonBlock
+ );
+ }
}
// Client expects the server to "play" the animation before setting the final blocks
@@ -60,9 +64,12 @@ void cBlockPistonHandler::ExtendPiston(Vector3i a_BlockPos, cWorld & a_World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
- World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta);
- if ((pistonBlock != E_BLOCK_PISTON) && !IsSticky(pistonBlock))
+
+ if (
+ !World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta) ||
+ ((pistonBlock != E_BLOCK_PISTON) && !IsSticky(pistonBlock))
+ )
{
// Ensure we operate on a piston to avoid spurious behaviour
// Note that the scheduled task may result in the block type of a_BlockPos changing
@@ -104,17 +111,23 @@ void cBlockPistonHandler::RetractPiston(Vector3i a_BlockPos, cWorld & a_World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
- a_World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta);
- a_World.BroadcastBlockAction(a_BlockPos, PistonRetractAction, pistonMeta, pistonBlock);
+ if (a_World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta))
+ {
+ a_World.BroadcastBlockAction(
+ a_BlockPos, PistonRetractAction, pistonMeta, pistonBlock
+ );
+ }
}
a_World.ScheduleTask(1_tick, [a_BlockPos](cWorld & World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
- World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta);
- if ((pistonBlock != E_BLOCK_PISTON) && !IsSticky(pistonBlock))
+ if (
+ !World.GetBlockTypeMeta(a_BlockPos, pistonBlock, pistonMeta) ||
+ ((pistonBlock != E_BLOCK_PISTON) && !IsSticky(pistonBlock))
+ )
{
// Ensure we operate on a piston to avoid spurious behaviour
// Note that the scheduled task may result in the block type of a_BlockPos changing
@@ -189,19 +202,20 @@ void cBlockPistonHandler::PushBlocks(
NIBBLETYPE moveMeta;
for (auto & moveBlockPos : sortedBlocks)
{
- a_World.GetBlockTypeMeta(moveBlockPos, moveBlock, moveMeta);
-
- if (cBlockInfo::IsPistonBreakable(moveBlock))
- {
- // Block is breakable, drop it:
- a_World.DropBlockAsPickups(moveBlockPos, nullptr, nullptr);
- }
- else
+ if (a_World.GetBlockTypeMeta(moveBlockPos, moveBlock, moveMeta))
{
- // Not breakable, just move it
- a_World.SetBlock(moveBlockPos, E_BLOCK_AIR, 0);
- moveBlockPos += a_PushDir;
- a_World.SetBlock(moveBlockPos, moveBlock, moveMeta);
+ if (cBlockInfo::IsPistonBreakable(moveBlock))
+ {
+ // Block is breakable, drop it:
+ a_World.DropBlockAsPickups(moveBlockPos, nullptr, nullptr);
+ }
+ else
+ {
+ // Not breakable, just move it
+ a_World.SetBlock(moveBlockPos, E_BLOCK_AIR, 0);
+ moveBlockPos += a_PushDir;
+ a_World.SetBlock(moveBlockPos, moveBlock, moveMeta);
+ }
}
}
}
@@ -232,7 +246,10 @@ bool cBlockPistonHandler::CanPushBlock(
BLOCKTYPE currBlock;
NIBBLETYPE currMeta;
- a_World.GetBlockTypeMeta(a_BlockPos, currBlock, currMeta);
+ if (!a_World.GetBlockTypeMeta(a_BlockPos, currBlock, currMeta))
+ {
+ return !a_RequirePushable;
+ }
if (currBlock == E_BLOCK_AIR)
{
diff --git a/src/ChunkMap.cpp b/src/ChunkMap.cpp
index a2bc50fe9..d982d0cf3 100644
--- a/src/ChunkMap.cpp
+++ b/src/ChunkMap.cpp
@@ -474,6 +474,11 @@ void cChunkMap::CollectPickupsByEntity(cEntity & a_Entity)
BLOCKTYPE cChunkMap::GetBlock(Vector3i a_BlockPos) const
{
+ if (!cChunkDef::IsValidHeight(a_BlockPos))
+ {
+ return 0;
+ }
+
auto chunkPos = cChunkDef::BlockToChunk(a_BlockPos);
auto relPos = cChunkDef::AbsoluteToRelative(a_BlockPos, chunkPos);
@@ -493,6 +498,11 @@ BLOCKTYPE cChunkMap::GetBlock(Vector3i a_BlockPos) const
NIBBLETYPE cChunkMap::GetBlockMeta(Vector3i a_BlockPos) const
{
+ if (!cChunkDef::IsValidHeight(a_BlockPos))
+ {
+ return 0;
+ }
+
auto chunkPos = cChunkDef::BlockToChunk(a_BlockPos);
auto relPos = cChunkDef::AbsoluteToRelative(a_BlockPos, chunkPos);
@@ -585,6 +595,14 @@ void cChunkMap::SetBlock(Vector3i a_BlockPos, BLOCKTYPE a_BlockType, NIBBLETYPE
bool cChunkMap::GetBlockTypeMeta(Vector3i a_BlockPos, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) const
{
+ if (!cChunkDef::IsValidHeight(a_BlockPos))
+ {
+ // Initialise the params to fulfil our contract.
+ a_BlockType = 0;
+ a_BlockMeta = 0;
+ return false;
+ }
+
auto chunkCoord = cChunkDef::BlockToChunk(a_BlockPos);
auto relPos = cChunkDef::AbsoluteToRelative(a_BlockPos, chunkCoord);
@@ -595,6 +613,10 @@ bool cChunkMap::GetBlockTypeMeta(Vector3i a_BlockPos, BLOCKTYPE & a_BlockType, N
Chunk->GetBlockTypeMeta(relPos, a_BlockType, a_BlockMeta);
return true;
}
+
+ // Initialise the params to fulfil our contract.
+ a_BlockType = 0;
+ a_BlockMeta = 0;
return false;
}
diff --git a/src/ChunkMap.h b/src/ChunkMap.h
index 578c49b8a..8538b7624 100644
--- a/src/ChunkMap.h
+++ b/src/ChunkMap.h
@@ -115,6 +115,10 @@ public:
void SetBlockMeta(Vector3i a_BlockPos, NIBBLETYPE a_BlockMeta);
void SetBlock (Vector3i a_BlockPos, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+ /** Get the block type and meta at the specified coords
+ Will always initialise a_BlockType and a_BlockMeta if called.
+ Returns false if the data could not be retrieved, either because the chunk is invalid or the height is invalid.
+ Otherwise, returns true. */
bool GetBlockTypeMeta (Vector3i a_BlockPos, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) const;
bool GetBlockInfo (Vector3i, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_Meta, NIBBLETYPE & a_SkyLight, NIBBLETYPE & a_BlockLight) const;
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp
index 01c95095a..2b32c5c07 100644
--- a/src/ClientHandle.cpp
+++ b/src/ClientHandle.cpp
@@ -1254,7 +1254,10 @@ void cClientHandle::HandleBlockDigStarted(Vector3i a_BlockPos, eBlockFace a_Bloc
BLOCKTYPE DiggingBlock;
NIBBLETYPE DiggingMeta;
- m_Player->GetWorld()->GetBlockTypeMeta(a_BlockPos, DiggingBlock, DiggingMeta);
+ if (!m_Player->GetWorld()->GetBlockTypeMeta(a_BlockPos, DiggingBlock, DiggingMeta))
+ {
+ return;
+ }
if (
m_Player->IsGameModeCreative() &&
@@ -1322,7 +1325,10 @@ void cClientHandle::HandleBlockDigFinished(Vector3i a_BlockPos, eBlockFace a_Blo
BLOCKTYPE DugBlock;
NIBBLETYPE DugMeta;
- m_Player->GetWorld()->GetBlockTypeMeta(a_BlockPos, DugBlock, DugMeta);
+ if (!m_Player->GetWorld()->GetBlockTypeMeta(a_BlockPos, DugBlock, DugMeta))
+ {
+ return;
+ }
if (!m_Player->IsGameModeCreative())
{
diff --git a/src/Entities/Player.cpp b/src/Entities/Player.cpp
index de99a299d..50fd034a5 100644
--- a/src/Entities/Player.cpp
+++ b/src/Entities/Player.cpp
@@ -2594,9 +2594,10 @@ bool cPlayer::IsInsideWater()
BLOCKTYPE Block;
NIBBLETYPE Meta;
- m_World->GetBlockTypeMeta(EyePos, Block, Meta);
-
- if ((Block != E_BLOCK_WATER) && (Block != E_BLOCK_STATIONARY_WATER))
+ if (
+ !m_World->GetBlockTypeMeta(GetEyePosition().Floor(), Block, Meta) ||
+ ((Block != E_BLOCK_WATER) && (Block != E_BLOCK_STATIONARY_WATER))
+ )
{
return false;
}
diff --git a/src/Items/ItemBed.h b/src/Items/ItemBed.h
index a2e254171..77818e7c7 100644
--- a/src/Items/ItemBed.h
+++ b/src/Items/ItemBed.h
@@ -27,7 +27,10 @@ public:
auto & World = *a_Player.GetWorld();
BLOCKTYPE HeadType;
NIBBLETYPE HeadMeta;
- World.GetBlockTypeMeta(HeadPosition, HeadType, HeadMeta);
+ if (!World.GetBlockTypeMeta(HeadPosition, HeadType, HeadMeta))
+ {
+ return false;
+ }
// Vanilla only allows beds to be placed into air.
// Check if there is empty space for the "head" block:
diff --git a/src/Items/ItemBigFlower.h b/src/Items/ItemBigFlower.h
index cbdecbed7..a135a220d 100644
--- a/src/Items/ItemBigFlower.h
+++ b/src/Items/ItemBigFlower.h
@@ -29,7 +29,10 @@ public:
const auto TopPos = a_PlacePosition.addedY(1);
BLOCKTYPE TopType;
NIBBLETYPE TopMeta;
- World.GetBlockTypeMeta(TopPos, TopType, TopMeta);
+ if (!World.GetBlockTypeMeta(TopPos, TopType, TopMeta))
+ {
+ return false;
+ }
if (!cBlockHandler::For(TopType).DoesIgnoreBuildCollision(World, a_HeldItem, TopPos, TopMeta, a_ClickedBlockFace, false))
{
diff --git a/src/Items/ItemDoor.h b/src/Items/ItemDoor.h
index 6538a5bef..f28d3ad36 100644
--- a/src/Items/ItemDoor.h
+++ b/src/Items/ItemDoor.h
@@ -54,7 +54,10 @@ public:
{
BLOCKTYPE TopType;
NIBBLETYPE TopMeta;
- World.GetBlockTypeMeta(UpperBlockPosition, TopType, TopMeta);
+ if (!World.GetBlockTypeMeta(UpperBlockPosition, TopType, TopMeta))
+ {
+ return false;
+ }
if (!cBlockHandler::For(TopType).DoesIgnoreBuildCollision(World, a_HeldItem, UpperBlockPosition, TopMeta, a_ClickedBlockFace, false))
{
diff --git a/src/Items/ItemDye.h b/src/Items/ItemDye.h
index 636a1b477..b0f00b9ba 100644
--- a/src/Items/ItemDye.h
+++ b/src/Items/ItemDye.h
@@ -54,10 +54,12 @@ public:
// Cocoa (brown dye) can be planted on jungle logs:
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
- a_World->GetBlockTypeMeta(a_ClickedBlockPos, BlockType, BlockMeta);
// Check if the block that the player clicked is a jungle log.
- if ((BlockType != E_BLOCK_LOG) || ((BlockMeta & 0x03) != E_META_LOG_JUNGLE))
+ if (
+ !a_World->GetBlockTypeMeta(a_ClickedBlockPos, BlockType, BlockMeta) ||
+ ((BlockType != E_BLOCK_LOG) || ((BlockMeta & 0x03) != E_META_LOG_JUNGLE))
+ )
{
return false;
}
diff --git a/src/Items/ItemEyeOfEnder.h b/src/Items/ItemEyeOfEnder.h
index fc6fac336..414d81c39 100644
--- a/src/Items/ItemEyeOfEnder.h
+++ b/src/Items/ItemEyeOfEnder.h
@@ -35,8 +35,8 @@ public:
{
BLOCKTYPE FacingBlock;
NIBBLETYPE FacingMeta;
- a_World->GetBlockTypeMeta(a_ClickedBlockPos, FacingBlock, FacingMeta);
- if (FacingBlock == E_BLOCK_END_PORTAL_FRAME)
+
+ if (a_World->GetBlockTypeMeta(a_ClickedBlockPos, FacingBlock, FacingMeta) && (FacingBlock == E_BLOCK_END_PORTAL_FRAME))
{
// Fill the portal frame. E_META_END_PORTAL_EYE is the bit for holding the eye of ender.
if ((FacingMeta & E_META_END_PORTAL_FRAME_EYE) != E_META_END_PORTAL_FRAME_EYE)
diff --git a/src/Items/ItemHoe.h b/src/Items/ItemHoe.h
index 2bca5f5ca..503047328 100644
--- a/src/Items/ItemHoe.h
+++ b/src/Items/ItemHoe.h
@@ -46,7 +46,10 @@ public:
// Can only transform dirt or grass blocks:
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
- a_World->GetBlockTypeMeta(a_ClickedBlockPos, BlockType, BlockMeta);
+ if (!a_World->GetBlockTypeMeta(a_ClickedBlockPos, BlockType, BlockMeta))
+ {
+ return false;
+ }
if ((BlockType != E_BLOCK_DIRT) && (BlockType != E_BLOCK_GRASS))
{
return false;
diff --git a/src/Items/ItemShears.h b/src/Items/ItemShears.h
index 5f8e9e2f1..00504884c 100644
--- a/src/Items/ItemShears.h
+++ b/src/Items/ItemShears.h
@@ -32,7 +32,10 @@ public:
{
BLOCKTYPE Block;
NIBBLETYPE BlockMeta;
- a_World->GetBlockTypeMeta(a_ClickedBlockPos, Block, BlockMeta);
+ if (!a_World->GetBlockTypeMeta(a_ClickedBlockPos, Block, BlockMeta))
+ {
+ return false;
+ }
if ((Block == E_BLOCK_LEAVES) || (Block == E_BLOCK_NEW_LEAVES))
{
diff --git a/src/UI/SlotArea.cpp b/src/UI/SlotArea.cpp
index 4085dc816..ef5f7382e 100644
--- a/src/UI/SlotArea.cpp
+++ b/src/UI/SlotArea.cpp
@@ -1065,9 +1065,12 @@ void cSlotAreaAnvil::OnTakeResult(cPlayer & a_Player)
BLOCKTYPE Block;
NIBBLETYPE BlockMeta;
- a_Player.GetWorld()->GetBlockTypeMeta(BlockPos, Block, BlockMeta);
- if (!a_Player.IsGameModeCreative() && (Block == E_BLOCK_ANVIL) && GetRandomProvider().RandBool(0.12))
+ if (
+ a_Player.GetWorld()->GetBlockTypeMeta(BlockPos, Block, BlockMeta) &&
+ !a_Player.IsGameModeCreative() && (Block == E_BLOCK_ANVIL) &&
+ GetRandomProvider().RandBool(0.12)
+ )
{
NIBBLETYPE Orientation = BlockMeta & 0x3;
NIBBLETYPE AnvilDamage = BlockMeta >> 2;
diff --git a/src/World.cpp b/src/World.cpp
index 2f92020bf..781d44c3a 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -1539,8 +1539,7 @@ bool cWorld::GetLargeTreeAdjustment(Vector3i & a_BlockPos, NIBBLETYPE a_Meta)
{
NIBBLETYPE meta;
BLOCKTYPE type;
- GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta);
- IsLarge = IsLarge && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
+ IsLarge = IsLarge && GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta) && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
}
}
@@ -1557,8 +1556,7 @@ bool cWorld::GetLargeTreeAdjustment(Vector3i & a_BlockPos, NIBBLETYPE a_Meta)
{
NIBBLETYPE meta;
BLOCKTYPE type;
- GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta);
- IsLarge = IsLarge && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
+ IsLarge = IsLarge && GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta) && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
}
}
@@ -1576,8 +1574,7 @@ bool cWorld::GetLargeTreeAdjustment(Vector3i & a_BlockPos, NIBBLETYPE a_Meta)
{
NIBBLETYPE meta;
BLOCKTYPE type;
- GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta);
- IsLarge = IsLarge && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
+ IsLarge = IsLarge && GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta) && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
}
}
@@ -1596,8 +1593,7 @@ bool cWorld::GetLargeTreeAdjustment(Vector3i & a_BlockPos, NIBBLETYPE a_Meta)
{
NIBBLETYPE meta;
BLOCKTYPE type;
- GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta);
- IsLarge = IsLarge && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
+ IsLarge = IsLarge && GetBlockTypeMeta(a_BlockPos.addedXZ(x, z), type, meta) && (type == E_BLOCK_SAPLING) && ((meta & 0x07) == a_Meta);
}
}
@@ -2044,7 +2040,10 @@ void cWorld::PlaceBlock(const Vector3i a_Position, const BLOCKTYPE a_BlockType,
{
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
- GetBlockTypeMeta(a_Position, BlockType, BlockMeta);
+ if (!GetBlockTypeMeta(a_Position, BlockType, BlockMeta))
+ {
+ return;
+ }
SetBlock(a_Position, a_BlockType, a_BlockMeta);
@@ -2070,7 +2069,10 @@ bool cWorld::DigBlock(Vector3i a_BlockPos, const cEntity * a_Digger)
{
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
- GetBlockTypeMeta(a_BlockPos, BlockType, BlockMeta);
+ if (!GetBlockTypeMeta(a_BlockPos, BlockType, BlockMeta))
+ {
+ return false;
+ }
if (!m_ChunkMap.DigBlock(a_BlockPos))
{
@@ -2617,7 +2619,11 @@ bool cWorld::IsTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ)
{
BLOCKTYPE Block;
NIBBLETYPE Meta;
- GetBlockTypeMeta({ a_BlockX, a_BlockY, a_BlockZ }, Block, Meta);
+ if (!GetBlockTypeMeta({ a_BlockX, a_BlockY, a_BlockZ }, Block, Meta))
+ {
+ return false;
+ }
+
if ((Block != E_BLOCK_TRAPDOOR) && (Block != E_BLOCK_IRON_TRAPDOOR))
{
return false;
@@ -2634,7 +2640,11 @@ bool cWorld::SetTrapdoorOpen(int a_BlockX, int a_BlockY, int a_BlockZ, bool a_Op
{
BLOCKTYPE Block;
NIBBLETYPE Meta;
- GetBlockTypeMeta({ a_BlockX, a_BlockY, a_BlockZ }, Block, Meta);
+ if (!GetBlockTypeMeta({ a_BlockX, a_BlockY, a_BlockZ }, Block, Meta))
+ {
+ return false;
+ }
+
if ((Block != E_BLOCK_TRAPDOOR) && (Block != E_BLOCK_IRON_TRAPDOOR))
{
return false;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 04:07:58 +0100