How to re-enable Footprint decals

It took some trial and error ... but I have managed to get footprints "added back" to the RTS Kit, as they were disabled by default. I kept comparing it to TGE until it worked.

It requires editing the RTSUnit.cc file, so back it up first.

Here goes ...

~line 13, add this include;

#include "sim/decalManager.h" // JY

at the end of the function RTSUnitData::RTSUnitData() add this;

decalData      = NULL; 
    decalID        = 0; 
    decalOffset    = 0.0f;

then add this at the end of the next function, RTSUnitData::packData

if( stream->writeFlag( decalData ) ) 
    { 
       stream->writeRangedU32( decalData->getId(), DataBlockObjectIdFirst,  DataBlockObjectIdLast ); 
    } 
    stream->write(decalOffset);

at the end of the next function, unpackData();

if( stream->readFlag() ) 
    { 
       decalID = (S32) stream->readRangedU32(DataBlockObjectIdFirst, DataBlockObjectIdLast); 
    } 
    stream->read(&decalOffset);

... end of InitPersistFields() add this;

addField("decalData",           TypeDecalDataPtr, Offset(decalData,      RTSUnitData)); 
    addField("decalOffset",         TypeF32,       Offset(decalOffset,       RTSUnitData));

next, go down until you find RTSUnit::updateActionThread() ... I uncommented and modified the code to look like this

if (isGhost())  
   {
      bool triggeredLeft = false;
      bool triggeredRight = false;
      F32 offset = 0.0f;
      
      if(mShapeInstance->getTriggerState(1)) 
      {
         triggeredLeft = true;
         offset = -mDataBlock->decalOffset;
         mShapeInstance->setTriggerState(2,true); // JY
         mShapeInstance->setTriggerState(1,false); // JY - off
      }
      else if (mShapeInstance->getTriggerState(2)) 
      {
         triggeredRight = true;
         offset = mDataBlock->decalOffset;
         mShapeInstance->setTriggerState(2,false); // JY - off
      }
      else
      {
         mShapeInstance->setTriggerState(1,true); // JY skip a step
      }

      if (triggeredLeft || triggeredRight)
      {
         Point3F rot, pos;
         RayInfo rInfo;
         MatrixF mat = getRenderTransform();
         mat.getColumn(1, &rot);
         mat.mulP(Point3F(offset,0.0f,0.0f), &pos);
         if (gClientContainer.castRay(Point3F(pos.x, pos.y, pos.z + 0.01f),
            Point3F(pos.x, pos.y, pos.z - 2.0f ),
            TerrainObjectType | InteriorObjectType | VehicleObjectType, &rInfo))
         {
            S32 sound = -1;
            // Footprint... // JY - trying to turn this back on
            if (mDataBlock->decalData != NULL)
               mSceneManager->getCurrentDecalManager()->addDecal(rInfo.point, rot, Point3F(rInfo.normal), getScale(), mDataBlock->decalData);

            // Play footstep sounds
            //playFootstepSound(triggeredLeft, sound);
         }
      } // if triggeredLeft|Right
   } // if isGhost()

I think this covers it ... I skipped the updatePack/Unpack ... since the footprint data should never change for a given unit once transmitted -- not sure if I missed anything else.

But This works, just not as cleanly as TGE "stock" does ... you see the footprints!

But I couldn't figure out where the mShapeInstance->setTriggerState(2) or mShapeInstance->setTriggerState(1) was supposed to be happening ... so I fudged it a bit.

If anyone knows how thats supposed to get "triggered" with Stock TGE - would be great help! But doesnt appear to happen in the modified RTS Kit.