private void CollidedByObject(IAffectedMovableObject affectedObject)
{
int curTime = STGStageManager.GetInstance().GetFrameSinceStageStart();
GravitationParas paras;
if (_affectedObjectDic.TryGetValue(affectedObject, out paras))
{
if (curTime - paras.lastUpdateTime == 1)
{
// 每帧重新计算向心力、离心力的角度
if (_fieldType == GravitationType.Centripetal)
{
paras.vAngle = MathUtil.GetAngleBetweenXAxis(_curPos - affectedObject.GetPosition());
paras.accAngle = paras.vAngle;
}
else if (_fieldType == GravitationType.Centrifugal)
{
paras.vAngle = MathUtil.GetAngleBetweenXAxis(affectedObject.GetPosition() - _curPos);
paras.accAngle = paras.vAngle;
}
paras.timeInGravitationField++;
}
else
{
paras = CreateGravitationParas(affectedObject);
paras.timeInGravitationField = 1;
}
}
else
{
paras = CreateGravitationParas(affectedObject);
paras.timeInGravitationField = 1;
}
paras.lastUpdateTime = curTime;
_affectedObjectDic[affectedObject] = paras;
// 设置额外运动参数
affectedObject.AddExtraSpeedParas(paras.velocity, paras.vAngle, paras.acce * paras.timeInGravitationField, paras.accAngle);
}
