/// <summary>
/// 设置敌机子弹的直线运动参数
/// <para>bullet</para>
/// <para>v</para>
/// <para>vAngle</para>
/// <para>bool isAimToPlayer</para>
/// <para>acce</para>
/// <para>accAngle</para>
/// <para>maxV</para>
/// </summary>
/// <param name="luaState"></param>
/// <returns></returns>
public static int EnemyBulletSetStraightParas(ILuaState luaState)
{
EnemyBulletBase bullet = luaState.ToUserData(-6) as EnemyBulletBase;
float v = (float)luaState.ToNumber(-5);
float angle = (float)luaState.ToNumber(-4);
bool isAimToPlayer = luaState.ToBoolean(-3);
float acce = (float)luaState.ToNumber(-2);
float accAngle;
if (luaState.Type(-1) == LuaType.LUA_TBOOLEAN)
{
accAngle = angle;
}
else
{
accAngle = (float)luaState.ToNumber(-1);
}
if (isAimToPlayer)
{
Vector2 playerPos = PlayerInterface.GetInstance().GetCharacter().GetPosition();
float relAngle = MathUtil.GetAngleBetweenXAxis(playerPos - bullet.GetPosition());
angle += relAngle;
accAngle += relAngle;
}
bullet.SetStraightParas(v, angle, acce, accAngle);
return(0);
}