s&box

Player/LongJump.cs

A player item component that gives a long-jump ability. It monitors when the local player ducks while moving, times that state, and when the player jumps within 0.5s it applies a strong forward and upward impulse and optionally plays a sound.

Native Interop

public sealed class LongJump : Item, IPlayerEvent
{
	[Property] float HorizontalForce { get; set; } = 1000;
	[Property] float VerticalForce { get; set; } = 350;
	[Property] SoundEvent JumpSound { get; set; }
	TimeSince timeSinceDucked { get; set; }

	protected override void OnAdded( BaseInventoryComponent inventory )
	{
		base.OnAdded( inventory );

		// The inventory stows what it adds, but this is passive - it has to keep running while
		// nothing is holding it.
		GameObject.Enabled = true;
		GameObject.Network.Refresh();
	}

	protected override void OnFixedUpdate()
	{
		if ( !Owner.IsValid() ) return;
		if ( !Owner.IsLocalPlayer ) return;
		if ( !Owner.Controller.IsValid() || !Owner.Controller.IsOnGround ) return;

		if ( Owner.Controller.Velocity.Length > 0 && Input.Pressed( "duck" ) )
		{
			timeSinceDucked = 0;
		}
	}

	void IPlayerEvent.OnJump()
	{
		if ( timeSinceDucked < 0.5f )
		{
			var rot = Owner.EyeTransform.Rotation;
			rot = rot.Angles().WithPitch( 0f );

			Owner.Controller.Jump( rot.Forward * HorizontalForce + Vector3.Up * VerticalForce );

			if ( JumpSound.IsValid() )
			{
				GameObject.PlaySound( JumpSound );
			}
		}
	}
}