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-rw-r--r--src/Entities/Minecart.cpp92
-rw-r--r--src/Entities/Minecart.h2
2 files changed, 62 insertions, 32 deletions
diff --git a/src/Entities/Minecart.cpp b/src/Entities/Minecart.cpp
index 88b5959d5..c75c8288c 100644
--- a/src/Entities/Minecart.cpp
+++ b/src/Entities/Minecart.cpp
@@ -445,6 +445,21 @@ void cMinecart::HandlePoweredRailPhysics(NIBBLETYPE a_RailMeta)
AddSpeedZ(AccelDecelNegSpeed);
}
}
+ // If rail is powered check for nearby blocks that could kick-start the minecart
+ else if ((a_RailMeta & 0x8) == 0x8)
+ {
+ bool IsBlockZP = IsSolidBlockAtOffset(0, 0, 1);
+ bool IsBlockZM = IsSolidBlockAtOffset(0, 0, -1);
+ // Only kick-start the minecart if a block is on one side, but not both
+ if (IsBlockZM && !IsBlockZP)
+ {
+ AddSpeedZ(AccelDecelSpeed);
+ }
+ else if (!IsBlockZM && IsBlockZP)
+ {
+ AddSpeedZ(AccelDecelNegSpeed);
+ }
+ }
break;
}
case E_META_RAIL_XM_XP: // EASTWEST
@@ -471,6 +486,21 @@ void cMinecart::HandlePoweredRailPhysics(NIBBLETYPE a_RailMeta)
AddSpeedX(AccelDecelNegSpeed);
}
}
+ // If rail is powered check for nearby blocks that could kick-start the minecart
+ else if ((a_RailMeta & 0x8) == 0x8)
+ {
+ bool IsBlockXP = IsSolidBlockAtOffset(1, 0, 0);
+ bool IsBlockXM = IsSolidBlockAtOffset(-1, 0, 0);
+ // Only kick-start the minecart if a block is on one side, but not both
+ if (IsBlockXM && !IsBlockXP)
+ {
+ AddSpeedX(AccelDecelSpeed);
+ }
+ else if (!IsBlockXM && IsBlockXP)
+ {
+ AddSpeedX(AccelDecelNegSpeed);
+ }
+ }
break;
}
case E_META_RAIL_ASCEND_XM: // ASCEND EAST
@@ -698,6 +728,20 @@ void cMinecart::SnapToRail(NIBBLETYPE a_RailMeta)
+bool cMinecart::IsSolidBlockAtOffset(int a_XOffset, int a_YOffset, int a_ZOffset)
+{
+ BLOCKTYPE Block = m_World->GetBlock(POSX_TOINT + a_XOffset, POSY_TOINT + a_YOffset, POSZ_TOINT + a_ZOffset);
+ if (IsBlockRail(Block) || !cBlockInfo::IsSolid(Block))
+ {
+ return false;
+ }
+ return true;
+}
+
+
+
+
+
bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
{
switch (a_RailMeta)
@@ -706,8 +750,7 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
{
if (GetSpeedZ() > 0)
{
- BLOCKTYPE Block = m_World->GetBlock(POSX_TOINT, POSY_TOINT, static_cast<int>(ceil(GetPosZ())));
- if (!IsBlockRail(Block) && cBlockInfo::IsSolid(Block))
+ if (IsSolidBlockAtOffset(0, 0, 1))
{
// We could try to detect a block in front based purely on coordinates, but xoft made a bounding box system - why not use? :P
cBoundingBox bbBlock(Vector3d(POSX_TOINT, POSY_TOINT, static_cast<int>(ceil(GetPosZ()))), 0.5, 1);
@@ -723,8 +766,7 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
else if (GetSpeedZ() < 0)
{
- BLOCKTYPE Block = m_World->GetBlock(POSX_TOINT, POSY_TOINT, POSZ_TOINT - 1);
- if (!IsBlockRail(Block) && cBlockInfo::IsSolid(Block))
+ if (IsSolidBlockAtOffset(0, 0, -1))
{
cBoundingBox bbBlock(Vector3d(POSX_TOINT, POSY_TOINT, POSZ_TOINT - 1), 0.5, 1);
cBoundingBox bbMinecart(Vector3d(GetPosX(), floor(GetPosY()), GetPosZ() - 1), GetWidth() / 2, GetHeight());
@@ -743,8 +785,7 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
{
if (GetSpeedX() > 0)
{
- BLOCKTYPE Block = m_World->GetBlock(static_cast<int>(ceil(GetPosX())), POSY_TOINT, POSZ_TOINT);
- if (!IsBlockRail(Block) && cBlockInfo::IsSolid(Block))
+ if (IsSolidBlockAtOffset(1, 0, 0))
{
cBoundingBox bbBlock(Vector3d(static_cast<int>(ceil(GetPosX())), POSY_TOINT, POSZ_TOINT), 0.5, 1);
cBoundingBox bbMinecart(Vector3d(GetPosX(), floor(GetPosY()), GetPosZ()), GetWidth() / 2, GetHeight());
@@ -759,8 +800,7 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
else if (GetSpeedX() < 0)
{
- BLOCKTYPE Block = m_World->GetBlock(POSX_TOINT - 1, POSY_TOINT, POSZ_TOINT);
- if (!IsBlockRail(Block) && cBlockInfo::IsSolid(Block))
+ if (IsSolidBlockAtOffset(-1, 0, 0))
{
cBoundingBox bbBlock(Vector3d(POSX_TOINT - 1, POSY_TOINT, POSZ_TOINT), 0.5, 1);
cBoundingBox bbMinecart(Vector3d(GetPosX() - 1, floor(GetPosY()), GetPosZ()), GetWidth() / 2, GetHeight());
@@ -777,13 +817,10 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
case E_META_RAIL_CURVED_ZM_XM:
{
- BLOCKTYPE BlockXM = m_World->GetBlock(POSX_TOINT - 1, POSY_TOINT, POSZ_TOINT);
- BLOCKTYPE BlockZM = m_World->GetBlock(POSX_TOINT, POSY_TOINT, POSZ_TOINT - 1);
+ bool IsBlockXM = IsSolidBlockAtOffset(-1, 0, 0);
+ bool IsBlockZM = IsSolidBlockAtOffset(0, 0, -1);
- if (
- ((GetSpeedZ() < 0) && (!IsBlockRail(BlockZM) && cBlockInfo::IsSolid(BlockZM))) ||
- ((GetSpeedX() < 0) && (!IsBlockRail(BlockXM) && cBlockInfo::IsSolid(BlockXM)))
- )
+ if (((GetSpeedZ() < 0) && IsBlockZM) || ((GetSpeedX() < 0) && IsBlockXM))
{
SetSpeed(0, 0, 0);
SetPosition(POSX_TOINT + 0.5, GetPosY(), POSZ_TOINT + 0.5);
@@ -794,13 +831,10 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
case E_META_RAIL_CURVED_ZM_XP:
{
- BLOCKTYPE BlockXP = m_World->GetBlock(POSX_TOINT + 1, POSY_TOINT, POSZ_TOINT);
- BLOCKTYPE BlockZM = m_World->GetBlock(POSX_TOINT, POSY_TOINT, POSZ_TOINT - 1);
+ bool IsBlockXP = IsSolidBlockAtOffset(1, 0, 0);
+ bool IsBlockZM = IsSolidBlockAtOffset(0, 0, -1);
- if (
- ((GetSpeedZ() < 0) && (!IsBlockRail(BlockZM) && cBlockInfo::IsSolid(BlockZM))) ||
- ((GetSpeedX() > 0) && (!IsBlockRail(BlockXP) && cBlockInfo::IsSolid(BlockXP)))
- )
+ if (((GetSpeedZ() < 0) && IsBlockZM) || ((GetSpeedX() > 0) && IsBlockXP))
{
SetSpeed(0, 0, 0);
SetPosition(POSX_TOINT + 0.5, GetPosY(), POSZ_TOINT + 0.5);
@@ -811,13 +845,10 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
case E_META_RAIL_CURVED_ZP_XM:
{
- BLOCKTYPE BlockXM = m_World->GetBlock(POSX_TOINT - 1, POSY_TOINT, POSZ_TOINT);
- BLOCKTYPE BlockZP = m_World->GetBlock(POSX_TOINT, POSY_TOINT, POSZ_TOINT + 1);
+ bool IsBlockXM = IsSolidBlockAtOffset(-1, 0, 0);
+ bool IsBlockZP = IsSolidBlockAtOffset(0, 0, +1);
- if (
- ((GetSpeedZ() > 0) && (!IsBlockRail(BlockZP) && cBlockInfo::IsSolid(BlockZP))) ||
- ((GetSpeedX() < 0) && (!IsBlockRail(BlockXM) && cBlockInfo::IsSolid(BlockXM)))
- )
+ if (((GetSpeedZ() > 0) && IsBlockZP) || ((GetSpeedX() < 0) && IsBlockXM))
{
SetSpeed(0, 0, 0);
SetPosition(POSX_TOINT + 0.5, GetPosY(), POSZ_TOINT + 0.5);
@@ -828,13 +859,10 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
case E_META_RAIL_CURVED_ZP_XP:
{
- BLOCKTYPE BlockXP = m_World->GetBlock(POSX_TOINT + 1, POSY_TOINT, POSZ_TOINT);
- BLOCKTYPE BlockZP = m_World->GetBlock(POSX_TOINT, POSY_TOINT, POSZ_TOINT + 1);
+ bool IsBlockXP = IsSolidBlockAtOffset(1, 0, 0);
+ bool IsBlockZP = IsSolidBlockAtOffset(0, 0, 1);
- if (
- ((GetSpeedZ() > 0) && (!IsBlockRail(BlockZP) && cBlockInfo::IsSolid(BlockZP))) ||
- ((GetSpeedX() > 0) && (!IsBlockRail(BlockXP) && cBlockInfo::IsSolid(BlockXP)))
- )
+ if (((GetSpeedZ() > 0) && IsBlockZP) || ((GetSpeedX() > 0) && IsBlockXP))
{
SetSpeed(0, 0, 0);
SetPosition(POSX_TOINT + 0.5, GetPosY(), POSZ_TOINT + 0.5);
diff --git a/src/Entities/Minecart.h b/src/Entities/Minecart.h
index f68b2f72b..f1f499328 100644
--- a/src/Entities/Minecart.h
+++ b/src/Entities/Minecart.h
@@ -78,6 +78,8 @@ protected:
void SnapToRail(NIBBLETYPE a_RailMeta);
/** Tests if a solid block is in front of a cart, and stops the cart (and returns true) if so; returns false if no obstruction */
bool TestBlockCollision(NIBBLETYPE a_RailMeta);
+ /** Tests if a solid block is at a specific offset of the minecart position */
+ bool IsSolidBlockAtOffset(int a_XOffset, int a_YOffset, int a_ZOffset);
/** Tests if this mincecart's bounding box is intersecting another entity's bounding box (collision) and pushes mincecart away if necessary */
bool TestEntityCollision(NIBBLETYPE a_RailMeta);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 00:24:08 +0100