private ObjectEmitCalculateResult OnCalculate(ObjectEmitCalculateParams args, ref ObjectEmitCalculateResult result)
{
switch (args.emitter.launchType)
{
//存在一次发射不同方向的可能
case EObjectEmitLaunchType.Line:
{
float lAngle = args.emitter.launchLineAngle * Mathf.Deg2Rad;
result.startMoveSpeed.x = args.emitter.launchMoveSpeed * Mathf.Cos(lAngle);
result.startMoveSpeed.y = args.emitter.launchMoveSpeed * Mathf.Sin(lAngle);
args.emitter.launchLineAngle += args.emitter.launchLineRPT;
result.startPosition.x = args.emitter.launchLineDistance * Mathf.Cos(lAngle);
result.startPosition.y = args.emitter.launchLineDistance * Mathf.Sin(lAngle);
result.startEulerAngles.z = (lAngle * Mathf.Rad2Deg) - 90;
result.startAngleSpeed.z = args.emitter.launchAngleSpeed;
}
break;
case EObjectEmitLaunchType.Sector:
{
float sectorAnglePerTimes = args.emitter.launchSectorSpreadAngle / args.emitter.launchNum;
float sectorAngle = (sectorAnglePerTimes * args.index + args.emitter.launchSectorStartAngle) * Mathf.Deg2Rad;
result.startPosition.x = args.emitter.launchSectorRadius * Mathf.Cos(sectorAngle);
result.startPosition.y = args.emitter.launchSectorRadius * Mathf.Sin(sectorAngle);
result.startMoveSpeed.x = args.emitter.launchMoveSpeed * Mathf.Cos(sectorAngle);
result.startMoveSpeed.y = args.emitter.launchMoveSpeed * Mathf.Sin(sectorAngle);
result.startAngleSpeed.z = args.emitter.launchAngleSpeed;
result.startEulerAngles.z = (sectorAngle * Mathf.Rad2Deg) - 90;
}
break;
case EObjectEmitLaunchType.Random:
{
//随机位置
float minR = args.emitter.launchRandomMinRadius;
float maxR = args.emitter.launchRandomMaxRadius;
float r = ObjectEmitManager.GetInstance().GetRandom().Next((int)(minR * 100), (int)((maxR * 100) + 1)) / 100f;
float angle = ObjectEmitManager.GetInstance().GetRandom().Next(0, 361) * Mathf.Deg2Rad;
float rX = r * Mathf.Cos(angle);
float rY = r * Mathf.Sin(angle);
result.startPosition.x = rX;
result.startPosition.y = rY;
result.startMoveSpeed.x = args.emitter.launchMoveSpeed * (float)Mathf.Cos(angle);
result.startMoveSpeed.y = args.emitter.launchMoveSpeed * (float)Mathf.Sin(angle);
result.startAngleSpeed.z = args.emitter.launchAngleSpeed;
result.startEulerAngles.z = (angle * Mathf.Rad2Deg) - 90;
}
break;
case EObjectEmitLaunchType.FixedPoint:
{
//固定位置
if (args.emitter.launchFixedPointPoints.Length > 0)
{
var ponit = args.emitter.launchFixedPointPoints[(args.index + args.times) % args.emitter.launchFixedPointPoints.Length];
result.startPosition.x = ponit.x;
result.startPosition.y = ponit.y;
result.startPosition.z = ponit.z;
}
}
break;
case EObjectEmitLaunchType.Custom:
{
if (args.emitter.launchCustomCallback != null)
{
result = args.emitter.launchCustomCallback.Calculate(args);
}
}
break;
}
return(result);
}
public abstract ObjectEmitCalculateResult Calculate(ObjectEmitCalculateParams args);