projectile augs

use impactforce to applyimpulse for stock physics too
add an optional explodeOnTmeout
for nonballistic projectiles, track if they hit something before their armingdelay is up, and delete them next simulation cycle

Engine/source/T3D/projectile.cpp

@@ -56,6 +56,7 @@
 #include "T3D/decal/decalData.h"
 #include "T3D/lightDescription.h"
 #include "console/engineAPI.h"
+#include "T3D/rigidShape.h"
 
 
 IMPLEMENT_CO_DATABLOCK_V1(ProjectileData);
@@ -163,6 +164,7 @@ ProjectileData::ProjectileData()
    scale.set( 1.0f, 1.0f, 1.0f );
 
    isBallistic = false;
+   mExplodeOnTmeout = false;
 
 	velInheritFactor = 1.0f;
 	muzzleVelocity = 50;
@@ -203,6 +205,7 @@ ProjectileData::ProjectileData(const ProjectileData& other, bool temp_clone) : G
    muzzleVelocity = other.muzzleVelocity;
    impactForce = other.impactForce;
    isBallistic = other.isBallistic;
+   mExplodeOnTmeout = other.mExplodeOnTmeout;
    bounceElasticity = other.bounceElasticity;
    bounceFriction = other.bounceFriction;
    gravityMod = other.gravityMod;
@@ -285,6 +288,8 @@ void ProjectileData::initPersistFields()
       addProtectedFieldV("fadeDelay", TypeRangedS32, Offset(fadeDelay, ProjectileData), &setFadeDelay, &getScaledValue, &CommonValidators::NaturalNumber,
          "@brief Amount of time, in milliseconds, before the projectile begins to fade out.\n\n"
          "This value must be smaller than the projectile's lifetime to have an affect.");
+      addField("explodeOnTmeout", TypeBool, Offset(mExplodeOnTmeout, ProjectileData),
+         "@brief Detetmines if the projectile should explode on timeout");      
       addField("isBallistic", TypeBool, Offset(isBallistic, ProjectileData),
          "@brief Detetmines if the projectile should be affected by gravity and whether or not "
          "it bounces before exploding.\n\n");
@@ -455,6 +460,7 @@ void ProjectileData::packData(BitStream* stream)
    stream->write(armingDelay);
    stream->write(fadeDelay);
 
+   stream->writeFlag(mExplodeOnTmeout);
    if(stream->writeFlag(isBallistic))
    {
       stream->write(gravityMod);
@@ -514,6 +520,7 @@ void ProjectileData::unpackData(BitStream* stream)
    stream->read(&armingDelay);
    stream->read(&fadeDelay);
 
+   mExplodeOnTmeout = stream->readFlag();
    isBallistic = stream->readFlag();
    if(isBallistic)
    {
@@ -611,6 +618,7 @@ Projectile::Projectile()
    mProjectileShape( NULL ),
    mActivateThread( NULL ),
    mMaintainThread( NULL ),
+   mHasHit(false),
    mHasExploded( false ),
    mFadeValue( 1.0f )
 {
@@ -1128,11 +1136,19 @@ void Projectile::processTick( const Move *move )
 
 void Projectile::simulate( F32 dt )
 {         
-   if ( isServerObject() && mCurrTick >= mDataBlock->lifetime )
+   if ( isServerObject()  )
+   {
+      if (mCurrTick >= (mDataBlock->lifetime - TickMs))
+      {
+         if (mDataBlock->mExplodeOnTmeout)
+            explode(mCurrPosition, Point3F::UnitZ, VehicleObjectType);
+      }
+      if (mCurrTick >= mDataBlock->lifetime || (mHasHit && mCurrTick < mDataBlock->armingDelay))
       {
          deleteObject();
          return;
       }
+   }
    
    if ( mHasExploded )
       return;
@@ -1168,8 +1184,15 @@ void Projectile::simulate( F32 dt )
    if ( mPhysicsWorld )
       hit = mPhysicsWorld->castRay( oldPosition, newPosition, &rInfo, Point3F( newPosition - oldPosition) * mDataBlock->impactForce );            
    else
+   {
       hit = getContainer()->castRay(oldPosition, newPosition, dynamicCollisionMask | staticCollisionMask, &rInfo);
-
+      if (hit && rInfo.object->getTypeMask() & VehicleObjectType)
+      {
+         RigidShape* aRigid = dynamic_cast<RigidShape*>(rInfo.object);
+         if (aRigid)
+            aRigid->applyImpulse(rInfo.point, Point3F(newPosition - oldPosition) * mDataBlock->impactForce);
+      }
+   }
    if ( hit )
    {
       // make sure the client knows to bounce
@@ -1237,6 +1260,8 @@ void Projectile::simulate( F32 dt )
       else
       {
          mCurrVelocity    = Point3F::Zero;
+         newPosition = oldPosition = rInfo.point + rInfo.normal * 0.05f;
+         mHasHit = true;
       }
    }
 

Engine/source/T3D/projectile.h

@@ -87,9 +87,9 @@ public:
    /// Force imparted on a hit object.
    F32 impactForce;
 
+   bool mExplodeOnTmeout;
    /// Should it arc?
    bool isBallistic;
-
    /// How HIGH should it bounce (parallel to normal), [0,1]
    F32 bounceElasticity;
    /// How much momentum should be lost when it bounces (perpendicular to normal), [0,1]
@@ -274,7 +274,7 @@ protected:
    
    LightInfo *mLight;
    LightState mLightState;   
-
+   bool             mHasHit;
    bool             mHasExploded;   ///< Prevent rendering, lighting, and duplicate explosions.
    F32              mFadeValue;     ///< set in processTick, interpolation between fadeDelay and lifetime
                                     ///< in data block