private N_CompositionNode RandomComp()
{
N_CompositionNode randomComp;
int randomComposition = UnityEngine.Random.Range(0, 3);
switch (randomComposition)
{
case 0:
randomComp = new N_Selection();
break;
case 1:
randomComp = new N_Sequence();
break;
case 2:
randomComp = new N_ProbabilitySelector();
break;
default:
randomComp = null;
Debug.LogError("No comp was chosen for generation of BT.");
break;
}
return(randomComp);
}
// Returns failure if enemy in sights or if agent was lost.
// Returns success if enemy was found.
// Returns running if agent is walking towards last seen destination.
public static Node Tree_FollowEnemy(N_AgentNode.AgentType agent)
{
N_Sequence followSequence = new N_Sequence();
followSequence.AddLast(new N_DecFlip(new N_IsEnemyVisible(agent)));
followSequence.AddLast(new N_FollowEnemy(agent));
followSequence.IsSubtree = true;
return(followSequence);
}
// Returns success if agent was shot, no enemy was in sight and agent turned around.
// Returns failure otherwise.
public static Node Tree_TurnWhenShot(N_AgentNode.AgentType agent)
{
N_Sequence turnSequence = new N_Sequence();
turnSequence.AddLast(new N_WasShot(agent));
turnSequence.AddLast(new N_DecFlip(new N_IsEnemyVisible(agent)));
turnSequence.AddLast(new N_TurnAround(agent));
turnSequence.IsSubtree = true;
return(turnSequence);
}
// Returns success if no enemy is in sights *** succ or fail?
// Returns success if in sights and agent shot.
public static Node Tree_ShootAtEnemy(N_AgentNode.AgentType agent)
{
N_Sequence shootTree = new N_Sequence();
shootTree.AddLast(new N_IsEnemyVisible(agent));
shootTree.AddLast(new N_ShootAtEnemy(agent));
N_DecSuccess success = new N_DecSuccess(shootTree);
success.IsSubtree = true;
return(success);
//return shootTree;
}
// Returns success if ammo full.
// Returns failure if not beneath threshold.
// Returns running if in process of reloading.
public static Node Tree_ReloadIfLow(N_AgentNode.AgentType agent, int threshold)
{
// Create nodes.
N_AmmoThreshold ammoCheck = new N_AmmoThreshold(agent, threshold);
N_Reload reload = new N_Reload(agent);
N_Sequence reloadSequence = new N_Sequence();
// Add nodes to sequence. Threshold must be true before attemtping to reload.
reloadSequence.AddLast(ammoCheck);
reloadSequence.AddLast(reload);
reloadSequence.IsSubtree = true;
return(reloadSequence);
}
// Sequence for moving by patroling or kiting.
// If an enemy is spotted, there's a probability of the agent either patroling.
// or kiting. If no enemy, always patrol.
// Returns success if path found and started.
// Returns running if in process of walking towards destination.
public static Node Tree_PatrolOrKite(N_AgentNode.AgentType agent)
{
N_ProbabilitySelector kiteOrPatrol = new N_ProbabilitySelector();
kiteOrPatrol.AddLast(new N_Kite(agent));
kiteOrPatrol.AddLast(new N_Patrol(agent));
//N_DecSuccess kiteOrPatrolSuccess = new N_DecSuccess(kiteOrPatrol);
N_Sequence enemyThenKiteOrPatrol = new N_Sequence();
enemyThenKiteOrPatrol.AddLast(new N_IsEnemyVisible(agent));
enemyThenKiteOrPatrol.AddLast(kiteOrPatrol);
//N_DecSuccess patrolSuccess = new N_DecSuccess(new N_Patrol(agent));
N_Selection enemyOrPatrol = new N_Selection();
enemyOrPatrol.AddLast(enemyThenKiteOrPatrol);
enemyOrPatrol.AddLast(new N_Patrol(agent));
enemyOrPatrol.IsSubtree = true;
return(enemyOrPatrol);
}
