/// <summary>
/// Adds a new agent to the scene
/// </summary>
public NavAgent Spawn(Vector3 position)
{
int index = Random.Range(0, agentsToSpawn.Count);
NavAgent agent = Poolable.TryGetPoolable <NavAgent>(
agentsToSpawn[index].gameObject);
agent.transform.localScale = Vector3.one * world.scale;
agent.transform.rotation = world.transform.rotation;
agent.transform.position = position;
agent.gameObject.SetActive(true);
NavAgentArchetype archetype = agent.configuration.archetype;
int archetypeIndex = agentManager.archetypes.IndexOf(archetype);
NativeArray <AgentBehaviors> behaviors = agentManager.agentBehaviors[archetypeIndex];
// set the agent's navigation behaviors
AgentBehaviors flags = AgentBehaviors.Active
| AgentBehaviors.Queueing
| AgentBehaviors.Avoiding
| AgentBehaviors.Seeking;
NativeSlice <AgentBehaviors> slice = behaviors.Slice(agent.index, 1);
SetAgentBehaviors activation = new SetAgentBehaviors()
{
flags = flags, behaviors = slice
};
activation.Schedule(1, 1).Complete();
return(agent);
}
/// <summary>
/// Adds multiple agents randomly in the scene
/// </summary>
public void SpawnAgents(int count)
{
Vector3 position = Vector3.zero;
Vector3Int grid = Vector3Int.zero;
Vector2 center = new Vector2(
world.size.x / 2,
world.size.z / 2
);
for (int i = 0; i < count; i++)
{
// choose a random (x,z) position inside a circle
Vector2 randomXZ = Random.insideUnitCircle;
randomXZ *= world.size.x / 2;
randomXZ += center;
// update the agents grid position and
// convert the grid position to world space
grid.x = (int)randomXZ.x; grid.z = (int)randomXZ.y;
grid.y = heightMap.Read(grid.x, grid.z) + 1;
position = world.GridToScene(grid);
// spawn the new enemy agent
int index = Random.Range(0, agentsToSpawn.Count);
NavAgent agent = Poolable.TryGetPoolable <NavAgent>(
agentsToSpawn[index].gameObject);
agent.transform.localScale = Vector3.one * world.scale;
agent.transform.rotation = world.transform.rotation;
agent.transform.position = position;
agent.gameObject.SetActive(true);
// enable the agents navigation behaviors to SEEK, QUEUE, and AVOID
NavAgentArchetype archetype = agent.configuration.archetype;
int archetypeIndex = agentManager.archetypes.IndexOf(archetype);
NativeArray <AgentBehaviors> behaviors = agentManager.agentBehaviors[archetypeIndex];
AgentBehaviors flags = AgentBehaviors.Active
| AgentBehaviors.Queueing
| AgentBehaviors.Avoiding
| AgentBehaviors.Seeking;
NativeSlice <AgentBehaviors> slice = behaviors.Slice(agent.index, 1);
SetAgentBehaviors activation = new SetAgentBehaviors()
{
flags = flags, behaviors = slice
};
activation.Schedule(1, 1).Complete();
}
}
/// <summary>
/// Removes an agent from the scene
/// </summary>
public void Remove(Enemy enemy)
{
NavAgent agent = enemy.GetComponent <NavAgent>();
Poolable.TryPool(agent.gameObject);
// set the agent's navigation behaviors to NONE
NavAgentArchetype archetype = agent.configuration.archetype;
int archetypeIndex = agentManager.archetypes.IndexOf(archetype);
NativeArray <AgentBehaviors> behaviors = agentManager.agentBehaviors[archetypeIndex];
AgentBehaviors flags = AgentBehaviors.None;
NativeSlice <AgentBehaviors> slice = behaviors.Slice(agent.index, 1);
SetAgentBehaviors activation = new SetAgentBehaviors()
{
flags = flags, behaviors = slice
};
activation.Schedule(1, 1).Complete();
}
