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-rw-r--r--src/Entities/ProjectileEntity.cpp98
1 files changed, 58 insertions, 40 deletions
diff --git a/src/Entities/ProjectileEntity.cpp b/src/Entities/ProjectileEntity.cpp
index 95c494569..43023ec28 100644
--- a/src/Entities/ProjectileEntity.cpp
+++ b/src/Entities/ProjectileEntity.cpp
@@ -21,6 +21,9 @@
#include "FireChargeEntity.h"
#include "FireworkEntity.h"
#include "GhastFireballEntity.h"
+#include "WitherSkullEntity.h"
+#include "SplashPotionEntity.h"
+#include "Player.h"
@@ -33,7 +36,7 @@
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
// cProjectileTracerCallback:
class cProjectileTracerCallback :
@@ -67,16 +70,17 @@ protected:
if (cBlockInfo::IsSolid(a_BlockType))
{
- // The projectile hit a solid block
- // Calculate the exact hit coords:
- cBoundingBox bb(a_BlockX, a_BlockX + 1, a_BlockY, a_BlockY + 1, a_BlockZ, a_BlockZ + 1);
- Vector3d Line1 = m_Projectile->GetPosition();
- Vector3d Line2 = Line1 + m_Projectile->GetSpeed();
- double LineCoeff = 0;
- eBlockFace Face;
- if (bb.CalcLineIntersection(Line1, Line2, LineCoeff, Face))
+ // The projectile hit a solid block, calculate the exact hit coords:
+ cBoundingBox bb(a_BlockX, a_BlockX + 1, a_BlockY, a_BlockY + 1, a_BlockZ, a_BlockZ + 1); // Bounding box of the block hit
+ const Vector3d LineStart = m_Projectile->GetPosition(); // Start point for the imaginary line that goes through the block hit
+ const Vector3d LineEnd = LineStart + m_Projectile->GetSpeed(); // End point for the imaginary line that goes through the block hit
+ double LineCoeff = 0; // Used to calculate where along the line an intersection with the bounding box occurs
+ eBlockFace Face; // Face hit
+
+ if (bb.CalcLineIntersection(LineStart, LineEnd, LineCoeff, Face))
{
- Vector3d Intersection = Line1 + m_Projectile->GetSpeed() * LineCoeff;
+ Vector3d Intersection = LineStart + m_Projectile->GetSpeed() * LineCoeff; // Point where projectile goes into the hit block
+
if (cPluginManager::Get()->CallHookProjectileHitBlock(*m_Projectile, a_BlockX, a_BlockY, a_BlockZ, Face, &Intersection))
{
return false;
@@ -119,7 +123,7 @@ protected:
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
// cProjectileEntityCollisionCallback:
class cProjectileEntityCollisionCallback :
@@ -140,12 +144,14 @@ public:
{
if (
(a_Entity == m_Projectile) || // Do not check collisions with self
- (a_Entity == m_Projectile->GetCreator()) // Do not check whoever shot the projectile
+ (a_Entity->GetUniqueID() == m_Projectile->GetCreatorUniqueID()) // Do not check whoever shot the projectile
)
{
- // TODO: Don't check creator only for the first 5 ticks
- // so that arrows stuck in ground and dug up can hurt the player
- return false;
+ // Don't check creator only for the first 5 ticks so that projectiles can collide with the creator
+ if (m_Projectile->GetTicksAlive() <= 5)
+ {
+ return false;
+ }
}
cBoundingBox EntBox(a_Entity->GetPosition(), a_Entity->GetWidth() / 2, a_Entity->GetHeight());
@@ -161,7 +167,12 @@ public:
return false;
}
- // TODO: Some entities don't interact with the projectiles (pickups, falling blocks)
+ if (!a_Entity->IsMob() && !a_Entity->IsMinecart() && !a_Entity->IsPlayer() && !a_Entity->IsBoat())
+ {
+ // Not an entity that interacts with a projectile
+ return false;
+ }
+
if (cPluginManager::Get()->CallHookProjectileHitEntity(*m_Projectile, *a_Entity))
{
// A plugin disagreed.
@@ -203,13 +214,16 @@ protected:
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
// cProjectileEntity:
cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, double a_Width, double a_Height) :
super(etProjectile, a_X, a_Y, a_Z, a_Width, a_Height),
m_ProjectileKind(a_Kind),
- m_Creator(a_Creator),
+ m_CreatorData(
+ ((a_Creator != NULL) ? a_Creator->GetUniqueID() : -1),
+ ((a_Creator != NULL) ? (a_Creator->IsPlayer() ? ((cPlayer *)a_Creator)->GetName() : "") : "")
+ ),
m_IsInGround(false)
{
}
@@ -221,7 +235,7 @@ cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a
cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Vector3d & a_Pos, const Vector3d & a_Speed, double a_Width, double a_Height) :
super(etProjectile, a_Pos.x, a_Pos.y, a_Pos.z, a_Width, a_Height),
m_ProjectileKind(a_Kind),
- m_Creator(a_Creator),
+ m_CreatorData(a_Creator->GetUniqueID(), a_Creator->IsPlayer() ? ((cPlayer *)a_Creator)->GetName() : ""),
m_IsInGround(false)
{
SetSpeed(a_Speed);
@@ -233,7 +247,7 @@ cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, const Ve
-cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const cItem & a_Item, const Vector3d * a_Speed)
+cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, const cItem * a_Item, const Vector3d * a_Speed)
{
Vector3d Speed;
if (a_Speed != NULL)
@@ -250,14 +264,17 @@ cProjectileEntity * cProjectileEntity::Create(eKind a_Kind, cEntity * a_Creator,
case pkGhastFireball: return new cGhastFireballEntity (a_Creator, a_X, a_Y, a_Z, Speed);
case pkFireCharge: return new cFireChargeEntity (a_Creator, a_X, a_Y, a_Z, Speed);
case pkExpBottle: return new cExpBottleEntity (a_Creator, a_X, a_Y, a_Z, Speed);
+ case pkSplashPotion: return new cSplashPotionEntity (a_Creator, a_X, a_Y, a_Z, Speed, *a_Item);
+ case pkWitherSkull: return new cWitherSkullEntity (a_Creator, a_X, a_Y, a_Z, Speed);
case pkFirework:
{
- if (a_Item.m_FireworkItem.m_Colours.empty())
+ ASSERT(a_Item != NULL);
+ if (a_Item->m_FireworkItem.m_Colours.empty())
{
return NULL;
}
- return new cFireworkEntity(a_Creator, a_X, a_Y, a_Z, a_Item);
+ return new cFireworkEntity(a_Creator, a_X, a_Y, a_Z, *a_Item);
}
}
@@ -298,9 +315,9 @@ AString cProjectileEntity::GetMCAClassName(void) const
case pkEgg: return "Egg";
case pkGhastFireball: return "Fireball";
case pkFireCharge: return "SmallFireball";
- case pkEnderPearl: return "ThrownEnderPearl";
+ case pkEnderPearl: return "ThrownEnderpearl";
case pkExpBottle: return "ThrownExpBottle";
- case pkSplashPotion: return "ThrownPotion";
+ case pkSplashPotion: return "SplashPotion";
case pkWitherSkull: return "WitherSkull";
case pkFirework: return "Firework";
case pkFishingFloat: return ""; // Unknown, perhaps MC doesn't save this?
@@ -316,8 +333,9 @@ AString cProjectileEntity::GetMCAClassName(void) const
void cProjectileEntity::Tick(float a_Dt, cChunk & a_Chunk)
{
super::Tick(a_Dt, a_Chunk);
-
- if (GetProjectileKind() != pkArrow) // See cArrow::Tick
+
+ // TODO: see BroadcastMovementUpdate; RelativeMove packet jerkiness affects projectiles too (cause of sympton described in cArrowEntity::Tick())
+ if (GetProjectileKind() != pkArrow)
{
BroadcastMovementUpdate();
}
@@ -335,19 +353,10 @@ void cProjectileEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
return;
}
- Vector3d PerTickSpeed = GetSpeed() / 20;
- Vector3d Pos = GetPosition();
-
- // Trace the tick's worth of movement as a line:
- Vector3d NextPos = Pos + PerTickSpeed;
- cProjectileTracerCallback TracerCallback(this);
- if (!cLineBlockTracer::Trace(*m_World, TracerCallback, Pos, NextPos))
- {
- // Something has been hit, abort all other processing
- return;
- }
- // The tracer also checks the blocks for slowdown blocks - water and lava - and stores it for later in its SlowdownCoeff
-
+ const Vector3d PerTickSpeed = GetSpeed() / 20;
+ const Vector3d Pos = GetPosition();
+ const Vector3d NextPos = Pos + PerTickSpeed;
+
// Test for entity collisions:
cProjectileEntityCollisionCallback EntityCollisionCallback(this, Pos, NextPos);
a_Chunk.ForEachEntity(EntityCollisionCallback);
@@ -364,10 +373,19 @@ void cProjectileEntity::HandlePhysics(float a_Dt, cChunk & a_Chunk)
HitPos.x, HitPos.y, HitPos.z,
EntityCollisionCallback.GetMinCoeff()
);
-
+
OnHitEntity(*(EntityCollisionCallback.GetHitEntity()), HitPos);
}
// TODO: Test the entities in the neighboring chunks, too
+
+ // Trace the tick's worth of movement as a line:
+ cProjectileTracerCallback TracerCallback(this);
+ if (!cLineBlockTracer::Trace(*m_World, TracerCallback, Pos, NextPos))
+ {
+ // Something has been hit, abort all other processing
+ return;
+ }
+ // The tracer also checks the blocks for slowdown blocks - water and lava - and stores it for later in its SlowdownCoeff
// Update the position:
SetPosition(NextPos);