public override bool Handle(IEvent evt)
{
ComponentRemovedEvent <LaserBeamComponent> laserBeamComponentRemovedEvent = evt as ComponentRemovedEvent <LaserBeamComponent>;
if (laserBeamComponentRemovedEvent != null)
{
LaserBeamComponent laserBeamComp = laserBeamComponentRemovedEvent.Component;
// Laser beam destruction
Entity reflectionBeamEntity = laserBeamComp.ReflectionBeamEntity;
while (reflectionBeamEntity != null)
{
Entity entityToDestroy = reflectionBeamEntity;
LaserBeamComponent reflectionBeamComp = entityToDestroy.GetComponent <LaserBeamComponent>();
if (reflectionBeamComp != null)
{
reflectionBeamEntity = reflectionBeamComp.ReflectionBeamEntity;
}
Engine.DestroyEntity(entityToDestroy);
}
}
ComponentRemovedEvent <LaserEnemyComponent> laserEnemyComponentRemovedEvent = evt as ComponentRemovedEvent <LaserEnemyComponent>;
if (laserEnemyComponentRemovedEvent != null)
{
LaserEnemyComponent laserEnemyComp = laserEnemyComponentRemovedEvent.Component;
if (laserEnemyComp.LaserBeamEntity != null)
{
Engine.DestroyEntity(laserEnemyComp.LaserBeamEntity);
}
}
return(false);
}
public override void Update(float dt)
{
foreach (Entity laserEnemyEntity in _laserEnemyEntities)
{
LaserEnemyComponent laserEnemyComp = laserEnemyEntity.GetComponent <LaserEnemyComponent>();
Entity laserBeamEntity = laserEnemyComp.LaserBeamEntity;
if (laserBeamEntity != null)
{
LaserBeamComponent laserBeamComp = laserBeamEntity.GetComponent <LaserBeamComponent>();
if (laserBeamComp == null)
{
throw new Exception("Laser beam does not have a `LaserBeamComponent`.");
}
TransformComponent transformComp = laserEnemyEntity.GetComponent <TransformComponent>();
float cos = (float)Math.Cos(transformComp.Rotation),
sin = (float)Math.Sin(transformComp.Rotation);
Vector2 laserEnemyTip = new Vector2(4 + 0.35f / 1.5f, 0); // Right-most extent of laser enemy
laserEnemyTip = new Vector2(cos * laserEnemyTip.X - sin * laserEnemyTip.Y,
sin * laserEnemyTip.X + cos * laserEnemyTip.Y);
laserEnemyTip *= transformComp.Scale;
laserEnemyTip += transformComp.Position;
Vector2 laserEnemyDirection = new Vector2((float)Math.Cos(transformComp.Rotation), (float)Math.Sin(transformComp.Rotation)); // laserEnemyTip - transformComp.Position;
laserEnemyDirection.Normalize();
// Simple raycast to find edge/shield this laser touches
RaycastHit laserHit = Raycast(laserBeamComp.InteractWithShield ? _raycastWithShieldEntities : _raycastEntities, laserEnemyTip, laserEnemyDirection);
if (laserHit.Other.HasComponent <PlayerShieldComponent>() /*&& laserHit.Other.GetComponent<PlayerShieldComponent>().LaserReflectionActive == true*/ && laserBeamComp.ComputeReflection)
{
Vector2 shieldNormal = laserHit.Position - laserHit.Other.GetComponent <PlayerShieldComponent>().ShipEntity.GetComponent <TransformComponent>().Position;
if (Vector2.Dot(shieldNormal, laserHit.Normal) > 0)
{
if (laserBeamComp.ReflectionBeamEntity == null)
{
laserBeamComp.ReflectionBeamEntity = LaserBeamEntity.Create(Engine, Vector2.Zero, laserBeamEntity.HasComponent <CollisionComponent>());
laserBeamComp.ReflectionBeamEntity.AddComponent(new LaserBeamReflectionComponent());
if (laserHit.Other.HasComponent <PlayerComponent>())
{
laserBeamComp.ReflectionBeamEntity.GetComponent <LaserBeamReflectionComponent>().ReflectedBy
= laserHit.Other.GetComponent <PlayerComponent>().Player;
}
}
Entity reflectionBeamEntity = laserBeamComp.ReflectionBeamEntity;
reflectionBeamEntity.GetComponent <LaserBeamComponent>().Thickness = laserBeamComp.Thickness;
Vector2 laserDirection = laserHit.Position - laserEnemyTip;
Vector2 beamOutDirection = GetReflectionVector(laserDirection, laserHit.Normal);
// Simple raycast to find edge this laser touches
RaycastHit reflectionHit = Raycast(_raycastEntities, laserHit.Position, beamOutDirection);
SetLaserBeamProperties(reflectionBeamEntity,
laserHit.Position,
reflectionHit.Position,
(float)Math.Atan2(beamOutDirection.Y, beamOutDirection.X),
reflectionBeamEntity.GetComponent <LaserBeamComponent>().Thickness);
}
}
else
{
if (laserBeamComp.ReflectionBeamEntity != null)
{
Engine.DestroyEntity(laserBeamComp.ReflectionBeamEntity);
laserBeamComp.ReflectionBeamEntity = null;
}
}
SetLaserBeamProperties(laserBeamEntity, laserEnemyTip, laserHit.Position, transformComp.Rotation, laserBeamComp.Thickness);
}
}
}
