public void Execute(int i, TransformAccess transform)
{
AgentBehaviors mask = AgentBehaviors.Active;
if ((behaviors[i] & mask) == 0)
{
return;
}
float mass = movementConfigs[movement[i]].mass;
int3 grid = GridPosition(transform.position);
int3 bucket = new int3(
grid.x / size.x,
grid.y / size.y,
grid.z / size.z
);
Agents.AgentKinematics agent = agents[i];
agent.position = transform.position;
agents[i] = agent;
SpatialMapData data = new SpatialMapData();
data.position = transform.position;
data.height = collision.height;
data.radius = collision.radius;
data.mass = mass;
spatialMap.Add(bucket, data);
}
/// <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);
}
public void Execute(int i)
{
AgentBehaviors mask = AgentBehaviors.Active;
if ((behaviors[i] & mask) == 0)
{
return;
}
AgentKinematics agent = agents[i];
float3 min = agent.position + new float3(-collision.radius, -collision.radius, -collision.radius);
float3 max = agent.position + new float3(collision.radius, collision.radius, collision.radius);
int3 minBucket = GetSpatialBucket(min);
int3 maxBucket = GetSpatialBucket(max);
if (minBucket.Equals(maxBucket))
{
ResolveCollisions(i, minBucket);
}
else
{
ResolveCollisions(i, minBucket, maxBucket);
}
}
public void Execute(int i)
{
AgentBehaviors mask = AgentBehaviors.Queueing;
if ((behaviors[i] & mask) == 0)
{
return;
}
AgentKinematics agent = agents[i];
float3 direction = math.normalizesafe(agent.velocity, float3.zero);
float3 ahead = agent.position + direction * maxQueueAhead;
float3 min = ahead + new float3(-maxQueueRadius, -maxQueueRadius, -maxQueueRadius);
float3 max = ahead + new float3(maxQueueRadius, maxQueueRadius, maxQueueRadius);
int3 minBucket = GetSpatialBucket(min);
int3 maxBucket = GetSpatialBucket(max);
bool obstructed;
if (minBucket.Equals(maxBucket))
{
obstructed = DetectCollision(i, ahead, minBucket);
}
else
{
obstructed = DetectCollision(i, ahead, minBucket, maxBucket);
}
if (obstructed)
{
ApplyBrakeForce(i);
}
}
public void Execute(int i)
{
AgentBehaviors mask = AgentBehaviors.Active;
if ((behaviors[i] & mask) == 0)
{
return;
}
AgentKinematics agent = agents[i];
int3 grid = GridPosition(agent.position);
grid += new int3(0, -1, 0);
byte voxel = voxels[Flatten(grid)];
if (OverAir(voxel))
{
steering[i] += gravity;
}
if (InSolid(voxel))
{
steering[i] += gravity * -0.5f;
}
}
public void Execute(int i)
{
AgentBehaviors mask = AgentBehaviors.Stopping;
if ((behaviors[i] & mask) == 0)
{
return;
}
ApplyBrakeForce(i);
}
/// <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();
}
}
public void Execute(int i)
{
AgentBehaviors mask = AgentBehaviors.Avoiding;
if ((behaviors[i] & mask) == 0)
{
return;
}
AgentKinematics agent = agents[i];
float dynamicLength = math.length(agent.velocity) / avoidDistance;
float3 direction = math.normalizesafe(agent.velocity, float3.zero);
float3 closest = new float3(float.MaxValue, float.MaxValue, float.MaxValue);
float3 ahead = agent.position + direction * dynamicLength;
float3 ahead2 = agent.position + direction * dynamicLength * 0.5f;
float3 min = ahead + new float3(-avoidRadius, -avoidRadius, -avoidRadius);
float3 max = ahead + new float3(avoidRadius, avoidRadius, avoidRadius);
float3 min2 = ahead2 + new float3(-avoidRadius, -avoidRadius, -avoidRadius);
float3 max2 = ahead2 + new float3(avoidRadius, avoidRadius, avoidRadius);
int3 minBucket = math.min(GetSpatialBucket(min), GetSpatialBucket(min2));
int3 maxBucket = math.max(GetSpatialBucket(max), GetSpatialBucket(max2));
bool shouldAvoid;
if (minBucket.Equals(maxBucket))
{
shouldAvoid = DetectObstruction(i, ahead, ahead2, minBucket, ref closest);
}
else
{
shouldAvoid = DetectObstruction(i, ahead, ahead2, minBucket, maxBucket, ref closest);
}
if (shouldAvoid)
{
ApplyAvoidanceForce(i, ahead, closest);
}
}
/// <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();
}
public void Execute(int i)
{
AgentBehaviors mask = AgentBehaviors.Seeking;
if ((behaviors[i] & mask) == 0)
{
return;
}
AgentKinematics agent = agents[i];
int3 grid = GridPosition(agent.position);
grid += new int3(0, -1, 0);
if (OutOfBounds(grid))
{
steering[i] = float3.zero;
return;
}
int fieldIndex = Flatten(grid);
byte directionIndex = flowField[fieldIndex];
if (directionIndex == 0) // no direction
{
steering[i] = float3.zero;
return;
}
int3 flowDirection = flowDirections[directionIndex];
int3 nextGrid = grid + flowDirection + new int3(0, 1, 0);
float3 nextPosition = ScenePosition(nextGrid);
float3 desired = nextPosition - agent.position;
desired = math.normalizesafe(desired, float3.zero);
desired *= movementTypes[agentMovement[i]].topSpeed;
steering[i] = desired - agent.velocity;
}
public void Execute(int i, TransformAccess transform)
{
AgentBehaviors mask = AgentBehaviors.Active;
if ((behaviors[i] & mask) == 0)
{
return;
}
float3 up = new float3(0, 1, 0);
float3 position = transform.position;
quaternion rotation = transform.rotation;
AgentMovement movement = movementTypes[agentMovement[i]];
AgentKinematics agent = agents[i];
steering[i] = Clamp(steering[i], maxForce);
steering[i] = steering[i] / movement.mass;
agent.velocity = Clamp(agent.velocity + steering[i], agent.maxSpeed);
steering[i] = float3.zero; // reset steering forces for next frame
agents[i] = agent; // update the kinematics for the next frame
float3 nextPosition = agent.position + agent.velocity * deltaTime;
int3 nextGrid = GridPosition(nextPosition);
if (OutOfBounds(nextGrid))
{
return;
}
transform.position = nextPosition;
if (agent.velocity.Equals(float3.zero))
{
return;
}
quaternion look = quaternion.LookRotation(agent.velocity, up);
transform.rotation = math.slerp(rotation, look, movement.turnSpeed * deltaTime);
}
public void AvoidsNearbyAgents()
{
float3 position1 = float3.zero;
float3 position2 = new float3(0f, 1f, 0f);
float3 max = new float3(float.MaxValue, float.MaxValue, float.MaxValue);
NativeMultiHashMap <int3, SpatialMapData> spatialMap = new NativeMultiHashMap <int3, SpatialMapData>(1, Allocator.Persistent);
spatialMap.Add(int3.zero, new SpatialMapData()
{
position = position1
});
spatialMap.Add(int3.zero, new SpatialMapData()
{
position = position2
});
NativeArray <AgentKinematics> agents = new NativeArray <AgentKinematics>(2, Allocator.Persistent);
agents[0] = new AgentKinematics()
{
position = position1, velocity = new float3(0, 0, 0)
};
agents[1] = new AgentKinematics()
{
position = position2, velocity = new float3(0, 1, 0)
};
NativeArray <float3> steering = new NativeArray <float3>(2, Allocator.Persistent);
NativeArray <AgentBehaviors> active = new NativeArray <AgentBehaviors>(2, Allocator.Persistent);
AgentBehaviors flags = AgentBehaviors.Avoiding;
for (int i = 0; i < 2; i++)
{
active[i] = flags;
}
AgentWorld world = new AgentWorld()
{
scale = 1f,
offset = float3.zero,
center = new float3(0.5f, 0.5f, 0.5f),
rotation = quaternion.identity,
};
AvoidCollisionBehavior job = new AvoidCollisionBehavior()
{
avoidDistance = 1f,
avoidRadius = 1f,
avoidForce = 1f,
maxDepth = 100,
world = world,
size = new int3(1, 1, 1),
spatialMap = spatialMap,
steering = steering,
behaviors = active,
agents = agents,
};
job.Schedule(2, 1).Complete();
Assert.AreEqual(new float3(0, -1, 0), steering[0]);
Assert.AreEqual(new float3(0, 0, 0), steering[1]);
spatialMap.Dispose();
steering.Dispose();
agents.Dispose();
active.Dispose();
}