//The agent will use a random peice of cover that satisfies the line of sight requirements.
TacticalAI.CoverData FindRandomCover(Vector3 targetTransformPos, Transform transformToDefend)
{
int i = 0;
TacticalAI.CoverNodeScript currentCoverNodeScript = null;
List <TacticalAI.CoverNodeScript> availableCoverNodeScripts = new List <TacticalAI.CoverNodeScript>();
//Fill a list with potential nodes
for (i = 0; i < coverNodeScripts.Length; i++)
{
if (!coverNodeScripts[i].isOccupied())
{
if (coverNodeScripts[i].ValidCoverCheck(targetTransformPos) && (!transformToDefend || Vector3.SqrMagnitude(coverNodeScripts[i].GetPosition() - transformToDefend.position) < defendingDistSquared))
{
availableCoverNodeScripts.Add(coverNodeScripts[i]);
}
}
}
if (availableCoverNodeScripts.Count > 0)
{
//Pick a random node
currentCoverNodeScript = availableCoverNodeScripts[Random.Range(0, availableCoverNodeScripts.Count)];
lastCoverPos = currentCoverNodeScript.GetPosition();
return(new TacticalAI.CoverData(true, currentCoverNodeScript.GetPosition(), currentCoverNodeScript.GetSightNodePosition(), false, currentCoverNodeScript));
}
//Only bother with dynamic cover if we need it
if (shouldUseDynamicCover && !ControllerScript.pMode)
{
return(FindDynamicCover(targetTransformPos, transformToDefend));
}
return(new TacticalAI.CoverData());
}
//Agent will try and find cover that is within a given range of the target.
TacticalAI.CoverData FindCoverWithinCombatRange(Vector3 targetTransformPos, Transform transformToDefend)
{
int i = 0;
Vector3 myPos = myTransform.position;
TacticalAI.CoverNodeScript currentCoverNodeScript = null;
float closestDistSquared = maxDistToCover;
float nodeCheckingNowDistSquared;
float distToTargetSquared;
//We will take cover outside of the desired range if we can't find any within.
bool foundCoverWithinAcceptableRange = false;
for (i = 0; i < coverNodeScripts.Length; i++)
{
//Check if the node we are checking is occupied and within acceptable distances to key points
if (!coverNodeScripts[i].isOccupied() && coverNodeGroup == coverNodeScripts[i].coverNodeGroup && Vector3.SqrMagnitude(coverNodeScripts[i].GetPosition() - lastCoverPos) > minDistBetweenLastCoverSquared &&
(!transformToDefend || Vector3.SqrMagnitude(coverNodeScripts[i].GetPosition() - transformToDefend.position) < defendingDistSquared))
{
distToTargetSquared = Vector3.SqrMagnitude(coverNodeScripts[i].GetPosition() - targetTransformPos);
nodeCheckingNowDistSquared = Vector3.SqrMagnitude(myPos - coverNodeScripts[i].GetPosition());
//Check for line of sight
if (coverNodeScripts[i].ValidCoverCheck(targetTransformPos))
{
//Prefer nodes within othe agent's combat range
if (minCoverDistSqrd < distToTargetSquared && maxCoverDistSqrd > distToTargetSquared)
{
if (!foundCoverWithinAcceptableRange || (nodeCheckingNowDistSquared < closestDistSquared))
{
closestDistSquared = nodeCheckingNowDistSquared;
currentCoverNodeScript = coverNodeScripts[i];
foundCoverWithinAcceptableRange = true;
}
}
//Check if this is the closest so far
else if (!foundCoverWithinAcceptableRange && nodeCheckingNowDistSquared < closestDistSquared)
{
closestDistSquared = nodeCheckingNowDistSquared;
currentCoverNodeScript = coverNodeScripts[i];
}
}
}
}
//pass the data to the script that asked for cover
if (currentCoverNodeScript != null)
{
lastCoverPos = currentCoverNodeScript.GetPosition();
return(new TacticalAI.CoverData(true, currentCoverNodeScript.GetPosition(), currentCoverNodeScript.GetSightNodePosition(), false, currentCoverNodeScript));
}
//Only bother with dynamic cover if we need it
if (shouldUseDynamicCover && !ControllerScript.pMode)
{
return(FindDynamicCover(targetTransformPos, transformToDefend));
}
return(new TacticalAI.CoverData());
}
public CoverData(bool f, Vector3 hp, Vector3 fP, bool d, TacticalAI.CoverNodeScript cns)
{
foundCover = f;
hidingPosition = hp;
firingPosition = fP;
isDynamicCover = d;
coverNodeScript = cns;
}
//The agent will find cover that is closer to their target each time they change cover locations
TacticalAI.CoverData FindAdvancingCover(Vector3 targetTransformPos, Transform transformToDefend)
{
int i = 0;
Vector3 myPos = myTransform.position;
TacticalAI.CoverNodeScript currentCoverNodeScript = null;
//Will find closest cover that is nearer than the last one we have if possible.
//If not, we'll move to the target.
Vector3 posToAdvanceTo;
if (transformToDefend)
{
posToAdvanceTo = transformToDefend.position;
}
else
{
posToAdvanceTo = targetTransformPos;
}
float distBetweenMeAndTarget = Vector3.SqrMagnitude(myPos - posToAdvanceTo) - minDistToAdvance;
float closestDistBetweenMeAndCover = distBetweenMeAndTarget;
for (i = 0; i < coverNodeScripts.Length; i++)
{
if (!coverNodeScripts[i].isOccupied())
{
float sqrDistBetweenNodeAndTargetPos = Vector3.SqrMagnitude(coverNodeScripts[i].GetPosition() - posToAdvanceTo);
//Check if we'll be closer to target than we stand now
if (sqrDistBetweenNodeAndTargetPos < distBetweenMeAndTarget)
{
//Check if this node is closest to us
if (Vector3.SqrMagnitude(coverNodeScripts[i].GetPosition() - myPos) < closestDistBetweenMeAndCover)
{
//Check if node is safe
if (coverNodeScripts[i].ValidCoverCheck(targetTransformPos))
{
closestDistBetweenMeAndCover = sqrDistBetweenNodeAndTargetPos;
currentCoverNodeScript = coverNodeScripts[i];
}
}
}
}
}
if (currentCoverNodeScript != null)
{
lastCoverPos = currentCoverNodeScript.GetPosition();
return(new TacticalAI.CoverData(true, currentCoverNodeScript.GetPosition(), currentCoverNodeScript.GetSightNodePosition(), false, currentCoverNodeScript));
}
//Dynamic advancing cover is NOT supported
return(new TacticalAI.CoverData());
}
//Used to set variables once cover is found.
void SetCover(Vector3 newCoverPos, Vector3 newCoverFiringSpot, bool isDynamicCover, TacticalAI.CoverNodeScript newCoverNodeScript)
{
timeTilNoCoverCharge = maxTimeTilNoCoverCharge;
baseScript.currentCoverNodePos = newCoverPos;
baseScript.currentCoverNodeFiringPos = newCoverFiringSpot;
navI.SetStoppingDistance(0);
if (isDynamicCover)
{
foundDynamicCover = true;
TacticalAI.ControllerScript.currentController.AddACoverSpot(baseScript.currentCoverNodeFiringPos);
}
else
{
baseScript.currentCoverNodeScript = newCoverNodeScript;
baseScript.currentCoverNodeScript.setOccupied(true);
if (baseScript.useAdvancedCover)
{
animationScript.StartAdvancedCover(baseScript.currentCoverNodeScript.advancedCoverDirection, baseScript.currentCoverNodeScript.faceDir);
}
}
}
