private void DroneOnAlertedChanged(Drone drone, bool newState)
{
UpdateAlertZoneRadius();
}
public override void Update()
{
base.Update();
Vector2 logicalMovement = Vector2.Zero;
if (Input.IsKeyDown(Keys.A))
{
logicalMovement.X = -1.0f;
}
if (Input.IsKeyDown(Keys.D))
{
logicalMovement.X = 1.0f;
}
if (Input.IsKeyDown(Keys.W))
{
logicalMovement.Y = 1.0f;
}
if (Input.IsKeyDown(Keys.S))
{
logicalMovement.Y = -1.0f;
}
Vector3 worldMovement = Vector3.UnitX * logicalMovement.X + Vector3.UnitZ * -logicalMovement.Y;
worldMovement.Normalize();
Drone.SetMovement(worldMovement);
if (worldMovement != Vector3.Zero)
{
Drone.UpdateBodyRotation(worldMovement);
}
if (Input.IsMousePositionLocked)
{
Size3 backbufferSize = Game.GraphicsDevice.Presenter.BackBuffer.Size;
Vector2 screenSize = new Vector2(backbufferSize.Width, backbufferSize.Height);
Vector2 logicalHeadMovement = Input.MouseDelta * screenSize;
logicalHeadMovement.Y = -logicalHeadMovement.Y;
float headRotationDelta = -logicalHeadMovement.X * MathUtil.Pi / 500.0f;
Drone.UpdateHeadRotation(Drone.HeadRotation + headRotationDelta);
if (Input.IsKeyPressed(Keys.Space) || Input.IsMouseButtonPressed(MouseButton.Left))
{
Drone.Weapon?.TryShoot(null);
}
if (Input.IsKeyPressed(Keys.Escape))
{
Input.UnlockMousePosition();
}
}
else
{
if (Input.IsMouseButtonPressed(MouseButton.Left))
{
Input.LockMousePosition(true);
}
}
}
private void ChaseUpdate()
{
Drone.Alerted = true;
ChaseState chaseState = stateMachine.GetCurrentState <ChaseState>();
if (chaseState == null)
{
throw new InvalidOperationException("ChaseUpdate can only be used with ChaseState");
}
if (chaseState.ChaseTarget == null)
{
// Stop chasing
stateMachine.SwitchTo(PatrolState.Name);
return;
}
IDestructible destructible = Utils.GetDestructible(chaseState.ChaseTarget);
if (destructible == null)
{
throw new InvalidOperationException("ChaseTarget can only target IDestructibles");
}
if (destructible.IsDead)
{
// Stop chasing
stateMachine.SwitchTo(PatrolState.Name);
return;
}
// Check if still overlapping
bool withinRange = false;
foreach (var collision in alertZoneTrigger.Collisions)
{
var targetCollider = collision.ColliderA.Entity != alertZoneTrigger.Entity
? collision.ColliderA
: collision.ColliderB;
if (targetCollider == chaseState.ChaseColliderTarget)
{
withinRange = true;
break;
}
}
if (!withinRange)
{
// Stop chasing
stateMachine.SwitchTo(PatrolState.Name);
return;
}
// Recalculate path to player?
Vector3 actualTargetPos = chaseState.ChaseTarget.Transform.WorldMatrix.TranslationVector;
var source = Entity.Transform.WorldMatrix.TranslationVector;
var target = actualTargetPos;
source.Y = 1.5f;
target.Y = 1.5f;
Vector3 aimDir = target - source;
float distToTarget = aimDir.Length();
aimDir.Normalize();
var playerTargeted = Drone.UpdateHeadRotation(aimDir);
// Process move step
if (chaseState.MoveOperation != null)
{
if (!chaseState.MoveOperation.MoveNext())
{
chaseState.MoveOperation = null;
}
}
bool hasLineOfSight = CheckLineOfSight(Entity, chaseState.ChaseColliderTarget);
if (hasLineOfSight)
{
if (distToTarget < 6.0f)
{
// No longer need to move, player is in line of sight, and drone is pretty close
chaseState.MoveOperation = null;
Drone.SetMovement(Vector3.Zero);
}
if (playerTargeted)
{
// Shoot the player
Drone.Weapon?.TryShoot(chaseState.ChaseTarget);
}
}
// Update path towards player when either not moving or
// the current path would end up too far from the player
float targetDistance = (actualTargetPos - chaseState.CurrentChaseTargetPosition).Length();
if (chaseState.MoveOperation == null || targetDistance > 1.0f)
{
chaseState.CurrentChaseTargetPosition = chaseState.ChaseTarget.Transform.WorldMatrix.TranslationVector;
chaseState.MoveOperation = Move(chaseState.CurrentChaseTargetPosition);
}
}
private void PatrolUpdate()
{
PatrolState patrolState = stateMachine.GetCurrentState <PatrolState>();
if (patrolState == null)
{
throw new InvalidOperationException("PatrolUpdate can only be used with PatrolState");
}
// Move the drone on the current path, until the end of the move target is reached
if (patrolState.MoveOperation != null)
{
if (!patrolState.MoveOperation.MoveNext())
{
// Continue on path (if assigned)
if (PathToFollow != null)
{
// Done moving
patrolState.NextWaypoint = patrolState.NextWaypoint.Next;
if (patrolState.NextWaypoint == null)
{
patrolState.NextWaypoint = PathToFollow.Path.Waypoints[0]; // Loop back to first waypoint
}
patrolState.MoveOperation = Move(patrolState.NextWaypoint.Position);
}
else
{
// No move moving, this was a single target move
patrolState.MoveOperation = null;
}
}
}
else
{
// Not moving and no path to follow, reset to spawn rotation
Drone.UpdateBodyRotation(Drone.RotationToWorldDirection(spawnOrientation.Item1));
Drone.UpdateHeadRotation(spawnOrientation.Item2);
}
// Look in moving direction
Vector3 dir = Drone.CurrentVelocity;
dir.Normalize();
if (dir != Vector3.Zero)
{
Drone.UpdateHeadRotation(dir);
}
Drone.Alerted = false;
// Check for enemies
foreach (var collision in alertZoneTrigger.Collisions)
{
var targetCollider = collision.ColliderA.Entity != alertZoneTrigger.Entity
? collision.ColliderA
: collision.ColliderB;
if (Drone.Stunned)
{
if (targetCollider.CollisionGroup != CollisionFilterGroups.CustomFilter3)
{
continue;
}
}
else
{
if (targetCollider.CollisionGroup != CollisionFilterGroups.CharacterFilter &&
targetCollider.CollisionGroup != CollisionFilterGroups.CustomFilter1)
{
continue;
}
}
var enemy = Utils.GetDestructible(targetCollider.Entity);
if (targetCollider.Entity == Entity || enemy == null || enemy.IsDead)
{
continue;
}
// Visibility check
bool hasLineOfSight = CheckLineOfSight(Entity, targetCollider);
if (hasLineOfSight)
{
// Start chasing state
patrolState.ChaseTarget = targetCollider.Entity;
patrolState.ChaseColliderTarget = targetCollider;
stateMachine.SwitchTo(ChaseState.Name);
}
break;
}
}
public virtual void Init(Drone drone)
{
Drone = drone;
}
public override void Init(Drone drone)
{
base.Init(drone);
shootSoundSelector = new RandomSoundSelector(ProjectileSpawnPoint.Get <AudioEmitterComponent>(), "Fire");
}
public override void Init(Drone drone)
{
base.Init(drone);
shootSound = ProjectileSpawnPoint.Get <AudioEmitterComponent>()["Fire"];
}
