IEnumerator CheckIfHittingEnemyTarget()
{
while (true)
{
FasterReadOnlyList <EnemyTargetEntityView> targetEntitiesView = entityViewsDB.QueryEntityViews <EnemyTargetEntityView>();
//there is a sneaky bug that can be caused by this routine. It can be solved in several
//ways once it has been understood.
//the targetDamageSequence.Next can trigger a sequence that could lead to the immediate
//death of the player, this would mean that the inner loop should stop when the
//enemytarget (the player) dies. However this engine doens't know when the player dies
//We can solve this problem in several ways including
//- iterating over the enemy target, if the entity has been removed because dead, the for will be skipped
//(which is the solution I chose here)
//- removing the entity the frame after and not immediatly (a bit hacky)
//- add this engine in the sequencer to know when the player is death to stop
//this taskroutine
FasterReadOnlyList <EnemyEntityView> enemiesAttackList = entityViewsDB.QueryEntityViews <EnemyEntityView>();
for (int enemyIndex = enemiesAttackList.Count - 1; enemyIndex >= 0; --enemyIndex)
{
var enemyAttackEntityView = enemiesAttackList[enemyIndex];
EnemyCollisionData enemyCollisionData = enemyAttackEntityView.targetTriggerComponent.entityInRange;
for (int enemyTargetIndex = 0; enemyTargetIndex < targetEntitiesView.Count; enemyTargetIndex++)
{
var targetEntityView = targetEntitiesView[enemyTargetIndex];
//the IEnemyTriggerComponent implementors sets a the collides boolean
//whenever anything enters in the trigger range, but there is not more logic
//we have to check here if the colliding entity is actually an EnemyTarget
if (enemyCollisionData.collides == true &&
enemyCollisionData.otherEntityID == targetEntityView.ID)
{
var attackDamageComponent = enemyAttackEntityView.attackDamageComponent;
attackDamageComponent.timer += _time.deltaTime;
if (attackDamageComponent.timer >= attackDamageComponent.attackInterval)
{
attackDamageComponent.timer = 0.0f;
var damageInfo = new DamageInfo(attackDamageComponent.damage, Vector3.zero,
targetEntityView.ID, EntityDamagedType.EnemyTarget);
_targetDamageSequence.Next(this, ref damageInfo);
}
}
}
}
yield return(null);
}
}
void OnTriggerExit(Collider other)
{
entityInRange = new EnemyCollisionData(other.gameObject.GetInstanceID(), false);
}
void OnTriggerEnter(Collider other)
{
entityInRange = new EnemyCollisionData(new EGID(other.gameObject.GetInstanceID()), true);
}