public static float PredictCollisionBySimulation(MovementAgent aMovement, MovementAgent bMovement, float minDistance, float timeStep)
{
if (aMovement == null || bMovement == null)
{
return(-1f);
}
float time = 0f;
Vector3 posA;
Vector3 posB;
var upperBound = Camera.main.ScreenToWorldPoint(new Vector3(0, Screen.height, 0)) + Vector3.up;
var downBound = Camera.main.ScreenToWorldPoint(new Vector3(0, 0, 0)) + Vector3.down;
do
{
posA = aMovement.GetPosition(aMovement.CurrentTime + time);
posB = bMovement.GetPosition(bMovement.CurrentTime + time);
if (Mathf.Abs(Vector3.Distance(posA, posB)) <= minDistance)
{
return(time);
}
time += timeStep;
}while(posA.y > downBound.y && posA.y < upperBound.y && posB.y > downBound.y && posB.y < upperBound.y);
return(-1f);
}
public void SetupAI(bool aiActivation)
{
IsAIActive = aiActivation;
if (!IsAIActive)
{
MovementAgent.StopMovement();
ChaseTarget = null;
}
}
/// <summary>
/// Initialize object from pool or create new
/// </summary>
/// <param name="movement">Movement type</param>
/// <param name="position">Start position</param>
/// <returns></returns>
GameObject InitObject(MovementAgent movement, Vector3 position)
{
var obj = pool.GetObject(movement.MovementType, PrepareObj, CreateObject);
obj.transform.position = position;
obj.GetComponent <MovementComponent>().MovementAgent = movement;
var hit = obj.GetComponent <SphereHit>();
hit.OnHit += HandleOnHit;
return(obj);
}
public static float PredictLineCollision(MovementAgent aMovement, MovementAgent bMovement, float minDistance)
{
if (aMovement == null || bMovement == null)
{
return(-1);
}
return(PredictLineCollision(aMovement.CurrentPosition,
aMovement.Rotation,
aMovement.Speed,
bMovement.CurrentPosition,
bMovement.Rotation,
bMovement.Speed,
minDistance));
}
void Spawn()
{
float minX = (extentsBound.x - originBound.x);
float maxX = Screen.width - minX;
float y = spawnFromTop ? Screen.height : 0;
Quaternion rotation = Quaternion.identity;
Vector3 position = Vector3.zero;
//Choose random movement type
var movements = Enum.GetValues(typeof(MovementType));
MovementType currentMovementType = (MovementType)movements.GetValue(UnityEngine.Random.Range(0, movements.Length));
MovementAgent movement = null;
int countTries = numberOfTries;
bool hasCollision = false;
do
{
countTries--;
var x = UnityEngine.Random.Range(minX, maxX);
position = mainCamera.ScreenToWorldPoint(new Vector3(x, y, 5f));
var screenPoint = mainCamera.WorldToScreenPoint(position);
rotation = GeometryUtils.FindRotation(screenPoint, minX, maxX, spawnFromTop);
movement = GetMovementByType(currentMovementType, speed, position, rotation);
foreach (var otherObj in objects)
{
float time;
var otherObjMovement = otherObj.GetComponent <MovementComponent>().MovementAgent;
if (otherObjMovement.MovementType == MovementType.Line && currentMovementType == MovementType.Line)
{
time = GeometryUtils.PredictLineCollision(movement, otherObjMovement, collisionDistance);
}
else
{
time = GeometryUtils.PredictCollisionBySimulation(movement, otherObjMovement, collisionDistance, Time.fixedDeltaTime);
}
if (time >= 0f)
{
hasCollision = true;
break;
}
}
}while(hasCollision && countTries > 0);
if (!hasCollision)
{
var obj = InitObject(movement, position);
objects.Add(obj);
StatisticSystem.InGame++;
StatisticSystem.Started++;
}
else
{
StatisticSystem.Canceled++;
}
spawnFromTop = !spawnFromTop;//switch side
}