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add follow logic

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select follow target and toggle follow for a specific object. Only way to unfollow is to move the following bot to an arbitrary location
This commit is contained in:
marauder2k7 2025-07-27 17:25:09 +01:00
parent 0b96579ada
commit 3946017556
6 changed files with 155 additions and 55 deletions
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68
Engine/source/T3D/AI/AINavigation.cpp
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@ -23,7 +23,7 @@
#include "AIController.h"
#include "T3D/shapeBase.h"
static U32 sAILoSMask = TerrainObjectType | StaticShapeObjectType | StaticObjectType | AIObjectType;
static U32 sAILoSMask = TerrainObjectType | StaticShapeObjectType | StaticObjectType;
AINavigation::AINavigation(AIController* controller)
{
@ -339,11 +339,11 @@ void AINavigation::repath()
if (mPathData.path.isNull() || !mPathData.owned)
return;
if (mRandI(0, 100) < getCtrl()->mControllerData->mFlocking.mChance && flock())
if (avoidObstacles())
{
mPathData.path->mTo = mMoveDestination;
}
else if (avoidObstacles())
else if (mRandI(0, 100) < getCtrl()->mControllerData->mFlocking.mChance && flock())
{
mPathData.path->mTo = mMoveDestination;
}
@ -401,7 +401,7 @@ bool AINavigation::avoidObstacles()
leftDir.normalizeSafe();
rightDir.normalizeSafe();
F32 rayLength = getCtrl()->mMovement.getMoveSpeed();
F32 rayLength = obj->getVelocity().lenSquared() * TickSec * 2 + getCtrl()->getAIInfo()->mRadius;
Point3F directions[3] = {
forward,
leftDir,
@ -445,9 +445,10 @@ bool AINavigation::flock()
obj->disableCollision();
Point3F pos = obj->getBoxCenter();
Point3F searchArea = Point3F(flockingData.mMin / 2, flockingData.mMax / 2, getCtrl()->getAIInfo()->mObj->getObjBox().maxExtents.z / 2);
F32 maxFlocksq = flockingData.mMax * flockingData.mMax;
Point3F searchArea = Point3F(maxFlocksq, maxFlocksq, getCtrl()->getAIInfo()->mObj->getObjBox().maxExtents.z / 2);
bool flocking = false;
U32 found = 0;
if (getCtrl()->getGoal())
@ -471,41 +472,35 @@ bool AINavigation::flock()
sql.mList.remove(obj);
Point3F avoidanceOffset = Point3F::Zero;
F32 avoidanceAmtSq = 0;
//avoid objects in the way
RayInfo info;
if (obj->getContainer()->castRay(pos, dest + Point3F(0, 0, obj->getObjBox().len_z() / 2), sAILoSMask, &info))
{
Point3F blockerOffset = (info.point - dest);
blockerOffset.z = 0;
avoidanceOffset += blockerOffset;
}
//avoid bots that are too close
for (U32 i = 0; i < sql.mList.size(); i++)
{
ShapeBase* other = dynamic_cast<ShapeBase*>(sql.mList[i]);
Point3F objectCenter = other->getBoxCenter();
F32 sumRad = flockingData.mMin + other->getAIController()->mControllerData->mFlocking.mMin;
F32 sumMinRad = flockingData.mMin + other->getAIController()->mControllerData->mFlocking.mMin;
F32 separation = getCtrl()->getAIInfo()->mRadius + other->getAIController()->getAIInfo()->mRadius;
sumRad += separation;
separation += sumMinRad;
Point3F offset = (pos - objectCenter);
F32 offsetLensq = offset.lenSquared(); //square roots are expensive, so use squared val compares
if ((flockingData.mMin > 0) && (offsetLensq < (sumRad * sumRad)))
if ((flockingData.mMin > 0) && (offsetLensq < (sumMinRad * sumMinRad)))
{
other->disableCollision();
if (!obj->getContainer()->castRay(pos, other->getBoxCenter(), sAILoSMask, &info))
if (!obj->getContainer()->castRay(pos, other->getBoxCenter(), sAILoSMask | AIObjectType, &info))
{
found++;
offset.normalizeSafe();
offset *= sumRad + separation;
offset *= separation;
avoidanceOffset += offset; //accumulate total group, move away from that
avoidanceAmtSq += offsetLensq;
}
other->enableCollision();
}
}
//if we don't have to worry about bumping into one another (nothing found lower than minFLock), see about grouping up
if (found == 0)
{
@ -514,20 +509,20 @@ bool AINavigation::flock()
ShapeBase* other = static_cast<ShapeBase*>(sql.mList[i]);
Point3F objectCenter = other->getBoxCenter();
F32 sumRad = flockingData.mMin + other->getAIController()->mControllerData->mFlocking.mMin;
F32 sumMaxRad = flockingData.mMax + other->getAIController()->mControllerData->mFlocking.mMax;
F32 separation = getCtrl()->getAIInfo()->mRadius + other->getAIController()->getAIInfo()->mRadius;
sumRad += separation;
separation += sumMaxRad;
Point3F offset = (pos - objectCenter);
if ((flockingData.mMin > 0) && ((sumRad * sumRad) < (maxFlocksq)))
F32 offsetLensq = offset.lenSquared(); //square roots are expensive, so use squared val compares
if ((flockingData.mMax > 0) && (offsetLensq < (sumMaxRad * sumMaxRad)))
{
other->disableCollision();
if (!obj->getContainer()->castRay(pos, other->getBoxCenter(), sAILoSMask, &info))
if (!obj->getContainer()->castRay(pos, other->getBoxCenter(), sAILoSMask | AIObjectType, &info))
{
found++;
offset.normalizeSafe();
offset *= sumRad + separation;
avoidanceOffset -= offset; // subtract total group, move toward it
avoidanceAmtSq -= offsetLensq;
}
other->enableCollision();
}
@ -535,27 +530,36 @@ bool AINavigation::flock()
}
if (found > 0)
{
//ephasize the *side* portion of sidestep to better avoid clumps
if (avoidanceOffset.x < avoidanceOffset.y)
avoidanceOffset.x *= 2.0;
else
avoidanceOffset.y *= 2.0;
//add fuzz to sidestepping
avoidanceOffset.z = 0;
avoidanceOffset.x = (mRandF() * avoidanceOffset.x) * 0.5 + avoidanceOffset.x * 0.75;
avoidanceOffset.y = (mRandF() * avoidanceOffset.y) * 0.5 + avoidanceOffset.y * 0.75;
if (avoidanceOffset.lenSquared() < (maxFlocksq))
avoidanceOffset.normalizeSafe();
avoidanceOffset *= avoidanceAmtSq;
if ((avoidanceAmtSq) > flockingData.mMin * flockingData.mMin)
{
dest += avoidanceOffset;
dest = obj->getPosition()+avoidanceOffset;
}
//if we're not jumping...
if (mJump == None)
{
dest.z = obj->getPosition().z;
//make sure we don't run off a cliff
Point3F zlen(0, 0, getCtrl()->mControllerData->mHeightTolerance);
if (obj->getContainer()->castRay(dest + zlen, dest - zlen, TerrainObjectType | StaticShapeObjectType | StaticObjectType, &info))
{
if ((mMoveDestination - dest).len() > getCtrl()->mControllerData->mMoveTolerance)
{
mMoveDestination = dest;
flocking = true;
}
mMoveDestination = dest;
flocking = true;
}
}
}