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-rw-r--r--src/Entities/ArrowEntity.cpp4
-rw-r--r--src/Entities/Boat.cpp4
-rw-r--r--src/Entities/Entity.cpp20
-rw-r--r--src/Entities/Entity.h10
-rw-r--r--src/Entities/FallingBlock.cpp2
-rw-r--r--src/Entities/FireChargeEntity.cpp1
-rw-r--r--src/Entities/FireworkEntity.cpp2
-rw-r--r--src/Entities/GhastFireballEntity.cpp1
-rw-r--r--src/Entities/Minecart.cpp4
-rw-r--r--src/Entities/Pawn.cpp2
-rw-r--r--src/Entities/Pickup.cpp3
-rw-r--r--src/Entities/ProjectileEntity.cpp14
-rw-r--r--src/Entities/TNTEntity.cpp4
-rw-r--r--src/Entities/WitherSkullEntity.cpp2
14 files changed, 57 insertions, 16 deletions
diff --git a/src/Entities/ArrowEntity.cpp b/src/Entities/ArrowEntity.cpp
index 3c1fabb1b..32952100c 100644
--- a/src/Entities/ArrowEntity.cpp
+++ b/src/Entities/ArrowEntity.cpp
@@ -21,6 +21,8 @@ cArrowEntity::cArrowEntity(cEntity * a_Creator, double a_X, double a_Y, double a
{
SetSpeed(a_Speed);
SetMass(0.1);
+ SetGravity(-20.0f);
+ SetAirDrag(0.2f);
SetYawFromSpeed();
SetPitchFromSpeed();
LOGD("Created arrow %d with speed {%.02f, %.02f, %.02f} and rot {%.02f, %.02f}",
@@ -48,6 +50,8 @@ cArrowEntity::cArrowEntity(cPlayer & a_Player, double a_Force) :
{
m_PickupState = psInCreative;
}
+ SetGravity(-20.0f);
+ SetAirDrag(0.01f);
}
diff --git a/src/Entities/Boat.cpp b/src/Entities/Boat.cpp
index 6177eb32f..4ad418be4 100644
--- a/src/Entities/Boat.cpp
+++ b/src/Entities/Boat.cpp
@@ -16,7 +16,9 @@
cBoat::cBoat(double a_X, double a_Y, double a_Z) :
super(etBoat, a_X, a_Y, a_Z, 0.98, 0.7)
{
- SetMass(20.f);
+ SetMass(20.0f);
+ SetGravity(-16.0f);
+ SetAirDrag(0.05f);
SetMaxHealth(6);
SetHealth(6);
}
diff --git a/src/Entities/Entity.cpp b/src/Entities/Entity.cpp
index c8df6b4b1..51cee248e 100644
--- a/src/Entities/Entity.cpp
+++ b/src/Entities/Entity.cpp
@@ -36,6 +36,7 @@ cEntity::cEntity(eEntityType a_EntityType, double a_X, double a_Y, double a_Z, d
m_bHasSentNoSpeed(true),
m_bOnGround(false),
m_Gravity(-9.81f),
+ m_AirDrag(0.02f),
m_LastPos(a_X, a_Y, a_Z),
m_IsInitialized(false),
m_WorldTravellingFrom(nullptr),
@@ -943,6 +944,7 @@ void cEntity::HandlePhysics(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
{
// Normal gravity
fallspeed = m_Gravity * DtSec.count();
+ NextSpeed -= NextSpeed * (m_AirDrag * 20.0f) * DtSec.count();
}
NextSpeed.y += static_cast<float>(fallspeed);
}
@@ -999,7 +1001,7 @@ void cEntity::HandlePhysics(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
NextSpeed += m_WaterSpeed;
- if (NextSpeed.SqrLength() > 0.f)
+ if (NextSpeed.SqrLength() > 0.0f)
{
cTracer Tracer(GetWorld());
// Distance traced is an integer, so we round up from the distance we should go (Speed * Delta), else we will encounter collision detection failurse
@@ -1015,20 +1017,20 @@ void cEntity::HandlePhysics(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
// Block hit was within our projected path
// Begin by stopping movement in the direction that we hit something. The Normal is the line perpendicular to a 2D face and in this case, stores what block face was hit through either -1 or 1.
// For example: HitNormal.y = -1 : BLOCK_FACE_YM; HitNormal.y = 1 : BLOCK_FACE_YP
- if (Tracer.HitNormal.x != 0.f)
+ if (Tracer.HitNormal.x != 0.0f)
{
- NextSpeed.x = 0.f;
+ NextSpeed.x = 0.0f;
}
- if (Tracer.HitNormal.y != 0.f)
+ if (Tracer.HitNormal.y != 0.0f)
{
- NextSpeed.y = 0.f;
+ NextSpeed.y = 0.0f;
}
- if (Tracer.HitNormal.z != 0.f)
+ if (Tracer.HitNormal.z != 0.0f)
{
- NextSpeed.z = 0.f;
+ NextSpeed.z = 0.0f;
}
- if (Tracer.HitNormal.y == 1.f) // Hit BLOCK_FACE_YP, we are on the ground
+ if (Tracer.HitNormal.y == 1.0f) // Hit BLOCK_FACE_YP, we are on the ground
{
m_bOnGround = true;
}
@@ -1971,7 +1973,7 @@ void cEntity::SteerVehicle(float a_Forward, float a_Sideways)
{
return;
}
- if ((a_Forward != 0.f) || (a_Sideways != 0.f))
+ if ((a_Forward != 0.0f) || (a_Sideways != 0.0f))
{
m_AttachedTo->HandleSpeedFromAttachee(a_Forward, a_Sideways);
}
diff --git a/src/Entities/Entity.h b/src/Entities/Entity.h
index 9bb1837f1..dd6190ced 100644
--- a/src/Entities/Entity.h
+++ b/src/Entities/Entity.h
@@ -270,6 +270,10 @@ public:
float GetGravity(void) const { return m_Gravity; }
void SetGravity(float a_Gravity) { m_Gravity = a_Gravity; }
+
+ float GetAirDrag(void) const { return m_AirDrag; }
+
+ void SetAirDrag(float a_AirDrag) { m_AirDrag = a_AirDrag; }
/// Sets the rotation to match the speed vector (entity goes "face-forward")
void SetYawFromSpeed(void);
@@ -504,6 +508,12 @@ protected:
For realistic effects, this should be negative. For spaaaaaaace, this can be zero or even positive */
float m_Gravity;
+ /** Stores the air drag that is applied to the entity every tick, measured in speed ratio per tick
+ Acts as air friction and slows down flight
+ Will be interpolated if the server tick rate varies
+ Data: http://minecraft.gamepedia.com/Entity#Motion_of_entities */
+ float m_AirDrag;
+
/** Last position sent to client via the Relative Move or Teleport packets (not Velocity)
Only updated if cEntity::BroadcastMovementUpdate() is called! */
Vector3d m_LastPos;
diff --git a/src/Entities/FallingBlock.cpp b/src/Entities/FallingBlock.cpp
index 7301a3c9d..4a165909a 100644
--- a/src/Entities/FallingBlock.cpp
+++ b/src/Entities/FallingBlock.cpp
@@ -16,6 +16,8 @@ cFallingBlock::cFallingBlock(const Vector3i & a_BlockPosition, BLOCKTYPE a_Block
m_BlockMeta(a_BlockMeta),
m_OriginalPosition(a_BlockPosition)
{
+ SetGravity(-16.0f);
+ SetAirDrag(0.02f);
}
diff --git a/src/Entities/FireChargeEntity.cpp b/src/Entities/FireChargeEntity.cpp
index aba32602f..f6c665156 100644
--- a/src/Entities/FireChargeEntity.cpp
+++ b/src/Entities/FireChargeEntity.cpp
@@ -12,6 +12,7 @@ cFireChargeEntity::cFireChargeEntity(cEntity * a_Creator, double a_X, double a_Y
{
SetSpeed(a_Speed);
SetGravity(0);
+ SetAirDrag(0);
}
diff --git a/src/Entities/FireworkEntity.cpp b/src/Entities/FireworkEntity.cpp
index 32eaf669a..89f69f113 100644
--- a/src/Entities/FireworkEntity.cpp
+++ b/src/Entities/FireworkEntity.cpp
@@ -13,6 +13,8 @@ cFireworkEntity::cFireworkEntity(cEntity * a_Creator, double a_X, double a_Y, do
m_TicksToExplosion(a_Item.m_FireworkItem.m_FlightTimeInTicks),
m_FireworkItem(a_Item)
{
+ SetGravity(0);
+ SetAirDrag(0);
}
diff --git a/src/Entities/GhastFireballEntity.cpp b/src/Entities/GhastFireballEntity.cpp
index 9e4cb387e..c64fb2a17 100644
--- a/src/Entities/GhastFireballEntity.cpp
+++ b/src/Entities/GhastFireballEntity.cpp
@@ -12,6 +12,7 @@ cGhastFireballEntity::cGhastFireballEntity(cEntity * a_Creator, double a_X, doub
{
SetSpeed(a_Speed);
SetGravity(0);
+ SetAirDrag(0);
}
diff --git a/src/Entities/Minecart.cpp b/src/Entities/Minecart.cpp
index ee10cf6b3..3d56570ba 100644
--- a/src/Entities/Minecart.cpp
+++ b/src/Entities/Minecart.cpp
@@ -92,7 +92,9 @@ cMinecart::cMinecart(ePayload a_Payload, double a_X, double a_Y, double a_Z) :
m_DetectorRailPosition(0, 0, 0),
m_bIsOnDetectorRail(false)
{
- SetMass(20.f);
+ SetMass(20.0f);
+ SetGravity(-16.0f);
+ SetAirDrag(0.05f);
SetMaxHealth(6);
SetHealth(6);
SetWidth(1);
diff --git a/src/Entities/Pawn.cpp b/src/Entities/Pawn.cpp
index baf8a2f3b..fcb686e28 100644
--- a/src/Entities/Pawn.cpp
+++ b/src/Entities/Pawn.cpp
@@ -13,6 +13,8 @@ cPawn::cPawn(eEntityType a_EntityType, double a_Width, double a_Height) :
super(a_EntityType, 0, 0, 0, a_Width, a_Height)
, m_EntityEffects(tEffectMap())
{
+ SetGravity(-32.0f);
+ SetAirDrag(0.02f);
}
diff --git a/src/Entities/Pickup.cpp b/src/Entities/Pickup.cpp
index 9f2609894..f2f76dbf9 100644
--- a/src/Entities/Pickup.cpp
+++ b/src/Entities/Pickup.cpp
@@ -91,7 +91,8 @@ cPickup::cPickup(double a_PosX, double a_PosY, double a_PosZ, const cItem & a_It
, m_bCollected(false)
, m_bIsPlayerCreated(IsPlayerCreated)
{
- SetGravity(-10.5f);
+ SetGravity(-16.0f);
+ SetAirDrag(0.02f);
SetMaxHealth(5);
SetHealth(5);
SetSpeed(a_SpeedX, a_SpeedY, a_SpeedZ);
diff --git a/src/Entities/ProjectileEntity.cpp b/src/Entities/ProjectileEntity.cpp
index 4684e3e09..05b7669cd 100644
--- a/src/Entities/ProjectileEntity.cpp
+++ b/src/Entities/ProjectileEntity.cpp
@@ -227,6 +227,8 @@ cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a
),
m_IsInGround(false)
{
+ SetGravity(-12.0f);
+ SetAirDrag(0.01f);
}
@@ -242,6 +244,8 @@ cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Ve
SetSpeed(a_Speed);
SetYawFromSpeed();
SetPitchFromSpeed();
+ SetGravity(-12.0f);
+ SetAirDrag(0.01f);
}
@@ -349,9 +353,11 @@ void cProjectileEntity::HandlePhysics(std::chrono::milliseconds a_Dt, cChunk & a
return;
}
- const Vector3d PerTickSpeed = GetSpeed() / 20;
+ auto DtSec = std::chrono::duration_cast<std::chrono::duration<double>>(a_Dt);
+
+ const Vector3d DeltaSpeed = GetSpeed() * DtSec.count();
const Vector3d Pos = GetPosition();
- const Vector3d NextPos = Pos + PerTickSpeed;
+ const Vector3d NextPos = Pos + DeltaSpeed;
// Test for entity collisions:
cProjectileEntityCollisionCallback EntityCollisionCallback(this, Pos, NextPos);
@@ -388,8 +394,8 @@ void cProjectileEntity::HandlePhysics(std::chrono::milliseconds a_Dt, cChunk & a
// Add slowdown and gravity effect to the speed:
Vector3d NewSpeed(GetSpeed());
- NewSpeed.y += m_Gravity / 20;
- NewSpeed *= TracerCallback.GetSlowdownCoeff();
+ NewSpeed.y += m_Gravity * DtSec.count();
+ NewSpeed -= NewSpeed * (m_AirDrag * 20.0f) * DtSec.count();
SetSpeed(NewSpeed);
SetYawFromSpeed();
SetPitchFromSpeed();
diff --git a/src/Entities/TNTEntity.cpp b/src/Entities/TNTEntity.cpp
index a89d2f300..d849bd4c9 100644
--- a/src/Entities/TNTEntity.cpp
+++ b/src/Entities/TNTEntity.cpp
@@ -12,6 +12,8 @@ cTNTEntity::cTNTEntity(double a_X, double a_Y, double a_Z, int a_FuseTicks) :
super(etTNT, a_X, a_Y, a_Z, 0.98, 0.98),
m_FuseTicks(a_FuseTicks)
{
+ SetGravity(-16.0f);
+ SetAirDrag(0.02f);
}
@@ -22,6 +24,8 @@ cTNTEntity::cTNTEntity(const Vector3d & a_Pos, int a_FuseTicks) :
super(etTNT, a_Pos.x, a_Pos.y, a_Pos.z, 0.98, 0.98),
m_FuseTicks(a_FuseTicks)
{
+ SetGravity(-16.0f);
+ SetAirDrag(0.4f);
}
diff --git a/src/Entities/WitherSkullEntity.cpp b/src/Entities/WitherSkullEntity.cpp
index a7e774bba..dc95e3edd 100644
--- a/src/Entities/WitherSkullEntity.cpp
+++ b/src/Entities/WitherSkullEntity.cpp
@@ -16,6 +16,8 @@ cWitherSkullEntity::cWitherSkullEntity(cEntity * a_Creator, double a_X, double a
super(pkWitherSkull, a_Creator, a_X, a_Y, a_Z, 0.25, 0.25)
{
SetSpeed(a_Speed);
+ SetGravity(0);
+ SetAirDrag(0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 19:35:21 +0100