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-rw-r--r--src/Entities/Minecart.cpp305
-rw-r--r--src/Entities/Minecart.h7
2 files changed, 242 insertions, 70 deletions
diff --git a/src/Entities/Minecart.cpp b/src/Entities/Minecart.cpp
index 7f3fea5ec..ad63f848e 100644
--- a/src/Entities/Minecart.cpp
+++ b/src/Entities/Minecart.cpp
@@ -19,6 +19,70 @@
+class cMinecartCollisionCallback :
+ public cEntityCallback
+{
+public:
+ cMinecartCollisionCallback(Vector3d a_Pos, double a_Height, double a_Width, int a_UniqueID, int a_AttacheeUniqueID) :
+ m_Pos(a_Pos),
+ m_Height(a_Height),
+ m_Width(a_Width),
+ m_DoesInteserct(false),
+ m_CollidedEntityPos(0, 0, 0),
+ m_UniqueID(a_UniqueID),
+ m_AttacheeUniqueID(a_AttacheeUniqueID)
+ {
+ }
+
+ virtual bool Item(cEntity * a_Entity) override
+ {
+ ASSERT(a_Entity != NULL);
+
+ if (!a_Entity->IsPlayer() && !a_Entity->IsMob() && !a_Entity->IsMinecart() && !a_Entity->IsBoat())
+ {
+ return false;
+ }
+ else if ((a_Entity->GetUniqueID() == m_UniqueID) || (a_Entity->GetUniqueID() == m_AttacheeUniqueID))
+ {
+ return false;
+ }
+
+ cBoundingBox bbEntity(a_Entity->GetPosition(), a_Entity->GetWidth() / 2, a_Entity->GetHeight());
+ cBoundingBox bbMinecart(Vector3d(m_Pos.x, floor(m_Pos.y), m_Pos.z), m_Width / 2, m_Height);
+
+ if (bbEntity.DoesIntersect(bbMinecart))
+ {
+ m_CollidedEntityPos = a_Entity->GetPosition();
+ m_DoesInteserct = true;
+ return true;
+ }
+ return false;
+ }
+
+ bool FoundIntersection(void) const
+ {
+ return m_DoesInteserct;
+ }
+
+ Vector3d GetCollidedEntityPosition(void) const
+ {
+ return m_CollidedEntityPos;
+ }
+
+protected:
+ bool m_DoesInteserct;
+
+ Vector3d m_CollidedEntityPos;
+
+ Vector3d m_Pos;
+ double m_Height, m_Width;
+ int m_UniqueID;
+ int m_AttacheeUniqueID;
+};
+
+
+
+
cMinecart::cMinecart(ePayload a_Payload, double a_X, double a_Y, double a_Z) :
super(etMinecart, a_X, a_Y, a_Z, 0.98, 0.7),
@@ -30,7 +94,7 @@ cMinecart::cMinecart(ePayload a_Payload, double a_X, double a_Y, double a_Z) :
SetMass(20.f);
SetMaxHealth(6);
SetHealth(6);
- SetWidth(1.2);
+ SetWidth(1);
SetHeight(0.9);
}
@@ -153,7 +217,9 @@ void cMinecart::HandleRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt)
SetSpeedY(0); // Don't move vertically as on ground
SetSpeedX(0); // Correct diagonal movement from curved rails
- if (TestBlockCollision(a_RailMeta)) return;
+ // Execute both the entity and block collision checks
+ bool BlckCol = TestBlockCollision(a_RailMeta), EntCol = TestEntityCollision(a_RailMeta);
+ if (EntCol || BlckCol) return;
if (GetSpeedZ() != 0) // Don't do anything if cart is stationary
{
@@ -177,7 +243,8 @@ void cMinecart::HandleRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt)
SetSpeedY(0);
SetSpeedZ(0);
- if (TestBlockCollision(a_RailMeta)) return;
+ bool BlckCol = TestBlockCollision(a_RailMeta), EntCol = TestEntityCollision(a_RailMeta);
+ if (EntCol || BlckCol) return;
if (GetSpeedX() != 0)
{
@@ -281,24 +348,11 @@ void cMinecart::HandleRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt)
SetRotation(315); // Set correct rotation server side
SetPosY(floor(GetPosY()) + 0.55); // Levitate dat cart
- if (TestBlockCollision(a_RailMeta)) return;
+ TestBlockCollision(a_RailMeta);
+ TestEntityCollision(a_RailMeta);
+
+ // SnapToRail handles turning
- if (GetSpeedZ() > 0) // Cart moving south
- {
- int OldX = (int)floor(GetPosX());
- AddSpeedX(-GetSpeedZ() + 0.5); // See below
- AddPosX(-GetSpeedZ() * (a_Dt / 1000)); // Diagonally move southwest (which will make cart hit a southwest rail)
- // If we are already at southwest rail, set Z speed to zero as we can be moving so fast, MCS doesn't tick fast enough to active the handle for the rail...
- // ...and so we derail unexpectedly.
- if (GetPosX() <= OldX - 1) SetSpeedZ(0);
- }
- else if (GetSpeedX() > 0) // Cart moving east
- {
- int OldZ = (int)floor(GetPosZ());
- AddSpeedZ(-GetSpeedX() + 0.5);
- AddPosZ(-GetSpeedX() * (a_Dt / 1000)); // Diagonally move northeast
- if (GetPosZ() <= OldZ - 1) SetSpeedX(0);
- }
break;
}
case E_META_RAIL_CURVED_ZM_XP: // Curved NORTH EAST
@@ -306,22 +360,9 @@ void cMinecart::HandleRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt)
SetRotation(225);
SetPosY(floor(GetPosY()) + 0.55);
- if (TestBlockCollision(a_RailMeta)) return;
+ TestBlockCollision(a_RailMeta);
+ TestEntityCollision(a_RailMeta);
- if (GetSpeedZ() > 0)
- {
- int OldX = (int)floor(GetPosX());
- AddSpeedX(GetSpeedZ() - 0.5);
- AddPosX(GetSpeedZ() * (a_Dt / 1000));
- if (GetPosX() >= OldX + 1) SetSpeedZ(0);
- }
- else if (GetSpeedX() < 0)
- {
- int OldZ = (int)floor(GetPosZ());
- AddSpeedZ(GetSpeedX() + 0.5);
- AddPosZ(GetSpeedX() * (a_Dt / 1000));
- if (GetPosZ() <= OldZ - 1) SetSpeedX(0);
- }
break;
}
case E_META_RAIL_CURVED_ZP_XM: // Curved SOUTH WEST
@@ -329,22 +370,9 @@ void cMinecart::HandleRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt)
SetRotation(135);
SetPosY(floor(GetPosY()) + 0.55);
- if (TestBlockCollision(a_RailMeta)) return;
+ TestBlockCollision(a_RailMeta);
+ TestEntityCollision(a_RailMeta);
- if (GetSpeedZ() < 0)
- {
- int OldX = (int)floor(GetPosX());
- AddSpeedX(GetSpeedZ() + 0.5);
- AddPosX(GetSpeedZ() * (a_Dt / 1000));
- if (GetPosX() <= OldX - 1) SetSpeedZ(0);
- }
- else if (GetSpeedX() > 0)
- {
- int OldZ = (int)floor(GetPosZ());
- AddSpeedZ(GetSpeedX() - 0.5);
- AddPosZ(GetSpeedX() * (a_Dt / 1000));
- if (GetPosZ() >= OldZ + 1) SetSpeedX(0);
- }
break;
}
case E_META_RAIL_CURVED_ZP_XP: // Curved SOUTH EAST
@@ -352,22 +380,9 @@ void cMinecart::HandleRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt)
SetRotation(45);
SetPosY(floor(GetPosY()) + 0.55);
- if (TestBlockCollision(a_RailMeta)) return;
+ TestBlockCollision(a_RailMeta);
+ TestEntityCollision(a_RailMeta);
- if (GetSpeedZ() < 0)
- {
- int OldX = (int)floor(GetPosX());
- AddSpeedX(-GetSpeedZ() - 0.5);
- AddPosX(-GetSpeedZ() * (a_Dt / 1000));
- if (GetPosX() >= OldX + 1) SetSpeedZ(0);
- }
- else if (GetSpeedX() < 0)
- {
- int OldZ = (int)floor(GetPosZ());
- AddSpeedZ(-GetSpeedX() - 0.5);
- AddPosZ(-GetSpeedX() * (a_Dt / 1000));
- if (GetPosZ() >= OldZ + 1) SetSpeedX(0);
- }
break;
}
default:
@@ -481,6 +496,102 @@ void cMinecart::SnapToRail(NIBBLETYPE a_RailMeta)
SetPosX(floor(GetPosX()) + 0.5);
break;
}
+ case E_META_RAIL_CURVED_ZM_XM:
+ {
+ if (GetPosZ() < floor(GetPosZ()) + 0.5)
+ {
+ if (GetSpeedX() > 0)
+ {
+ SetSpeedZ(-GetSpeedX() * 0.7);
+ }
+
+ SetSpeedX(0);
+ SetPosX(floor(GetPosX()) + 0.5);
+ }
+ else
+ {
+ if (GetSpeedZ() > 0)
+ {
+ SetSpeedX(-GetSpeedZ() * 0.7);
+ }
+
+ SetSpeedZ(0);
+ SetPosZ(floor(GetPosZ()) + 0.5);
+ }
+ break;
+ }
+ case E_META_RAIL_CURVED_ZM_XP:
+ {
+ if (GetPosZ() < floor(GetPosZ()) + 0.5)
+ {
+ if (GetSpeedX() < 0)
+ {
+ SetSpeedZ(GetSpeedX() * 0.7);
+ }
+
+ SetSpeedX(0);
+ SetPosX(floor(GetPosX()) + 0.5);
+ }
+ else
+ {
+ if (GetSpeedZ() > 0)
+ {
+ SetSpeedX(GetSpeedZ() * 0.7);
+ }
+
+ SetSpeedZ(0);
+ SetPosZ(floor(GetPosZ()) + 0.5);
+ }
+ break;
+ }
+ case E_META_RAIL_CURVED_ZP_XM:
+ {
+ if (GetPosZ() < floor(GetPosZ()) + 0.5)
+ {
+ if (GetSpeedZ() < 0)
+ {
+ SetSpeedX(GetSpeedZ() * 0.7);
+ }
+
+ SetSpeedZ(0);
+ SetPosZ(floor(GetPosZ()) + 0.5);
+ }
+ else
+ {
+ if (GetSpeedX() > 0)
+ {
+ SetSpeedZ(GetSpeedX() * 0.7);
+ }
+
+ SetSpeedX(0);
+ SetPosX(floor(GetPosX()) + 0.5);
+ }
+ break;
+ }
+ case E_META_RAIL_CURVED_ZP_XP:
+ {
+ if (GetPosZ() < floor(GetPosZ()) + 0.5)
+ {
+ if (GetSpeedZ() < 0)
+ {
+ SetSpeedX(-GetSpeedZ() * 0.7);
+ }
+
+ SetSpeedZ(0);
+ SetPosZ(floor(GetPosZ()) + 0.5);
+ }
+ else
+ {
+ if (GetSpeedX() < 0)
+ {
+ SetSpeedZ(-GetSpeedX() * 0.7);
+ }
+
+ SetSpeedX(0);
+ SetPosX(floor(GetPosX()) + 0.5);
+ }
+ break;
+ }
default: break;
}
}
@@ -512,7 +623,7 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
}
}
- else
+ else if (GetSpeedZ() < 0)
{
BLOCKTYPE Block = m_World->GetBlock((int)floor(GetPosX()), (int)floor(GetPosY()), (int)floor(GetPosZ()) - 1);
if (!IsBlockRail(Block) && g_BlockIsSolid[Block])
@@ -548,7 +659,7 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
}
}
}
- else
+ else if (GetSpeedX() < 0)
{
BLOCKTYPE Block = m_World->GetBlock((int)floor(GetPosX()) - 1, (int)floor(GetPosY()), (int)floor(GetPosZ()));
if (!IsBlockRail(Block) && g_BlockIsSolid[Block])
@@ -596,10 +707,68 @@ bool cMinecart::TestBlockCollision(NIBBLETYPE a_RailMeta)
+bool cMinecart::TestEntityCollision(NIBBLETYPE a_RailMeta)
+{
+ switch (a_RailMeta)
+ {
+ case E_META_RAIL_ZM_ZP:
+ {
+ cMinecartCollisionCallback MinecartCollisionCallback(GetPosition(), GetHeight(), GetWidth(), GetUniqueID(), ((m_Attachee == NULL) ? -1 : m_Attachee->GetUniqueID()));
+ m_World->ForEachEntity(MinecartCollisionCallback);
+
+ if (MinecartCollisionCallback.FoundIntersection())
+ {
+ if (MinecartCollisionCallback.GetCollidedEntityPosition().z >= GetPosZ())
+ {
+ if (((-GetSpeedZ()) * 0.4) < 0.01)
+ {
+ AddSpeedZ(-4);
+ }
+ else
+ {
+ SetSpeedZ((-GetSpeedZ()) * 0.4);
+ }
+ }
+ else
+ {
+ if ((GetSpeedZ() * 0.4) < 0.01)
+ {
+ AddSpeedZ(4);
+ }
+ else
+ {
+ SetSpeedZ(GetSpeedZ() * 0.4);
+ }
+ }
+ return true;
+ }
+ break;
+ }
+ case E_META_RAIL_XM_XP:
+ {
+
+ break;
+ }
+ case E_META_RAIL_CURVED_ZM_XM:
+ case E_META_RAIL_CURVED_ZM_XP:
+ case E_META_RAIL_CURVED_ZP_XM:
+ case E_META_RAIL_CURVED_ZP_XP:
+ {
+
+ break;
+ }
+ default: break;
+ }
+ return false;
+}
+
+
+
+
void cMinecart::DoTakeDamage(TakeDamageInfo & TDI)
{
- if (TDI.Attacker->IsPlayer() && ((cPlayer *)TDI.Attacker)->IsGameModeCreative())
+ if ((TDI.Attacker != NULL) && TDI.Attacker->IsPlayer() && ((cPlayer *)TDI.Attacker)->IsGameModeCreative())
{
Destroy();
TDI.FinalDamage = GetMaxHealth(); // Instant hit for creative
diff --git a/src/Entities/Minecart.h b/src/Entities/Minecart.h
index 1ebddfdda..1c3ea3220 100644
--- a/src/Entities/Minecart.h
+++ b/src/Entities/Minecart.h
@@ -79,10 +79,13 @@ protected:
*/
void HandleDetectorRailPhysics(NIBBLETYPE a_RailMeta, float a_Dt);
- /** Snaps a minecart to a rail's axis, resetting its speed */
+ /** Snaps a mincecart to a rail's axis, resetting its speed
+ For curved rails, it changes the cart's direction as well as snapping it to axis */
void SnapToRail(NIBBLETYPE a_RailMeta);
- /** Tests is a solid block is in front of a cart, and stops the cart (and returns true) if so; returns false if no obstruction*/
+ /** 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 this mincecart's bounding box is intersecting another entity's bounding box (collision) and pushes mincecart away */
+ bool TestEntityCollision(NIBBLETYPE a_RailMeta);
} ;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 17:48:52 +0100