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84 lines
2.7 KiB
84 lines
2.7 KiB
namespace Oculus.Platform.Samples.VrHoops
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{
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using UnityEngine;
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// This script moves to goal around in a random direction to add a bit more difficulty
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// to the game.
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public class GoalMover : MonoBehaviour {
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// how far to from the center before changing direction
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[SerializeField] private float MAX_OFFSET = 2.0f;
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// how fast the backboard will move
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[SerializeField] private float m_speed = 0.005f;
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// maximum interpolation distance allow to correct per update
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private const float MOVE_TOLERANCE = 0.1f;
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// the position the goal should be in - only differs if network updates come in
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private Vector3 m_expectedPosition;
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// the current move vector * m_speed;
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private Vector3 m_moveDirection;
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// the direction to move when we run into the boundary
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private Vector3 m_nextMoveDirection;
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public Vector3 ExpectedPosition
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{
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get { return m_expectedPosition; }
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set { m_expectedPosition = value; }
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}
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public Vector3 MoveDirection
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{
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get { return m_moveDirection; }
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set { m_moveDirection = value; }
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}
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public Vector3 NextMoveDirection
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{
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get { return m_nextMoveDirection; }
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set { m_nextMoveDirection = value; }
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}
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void Start ()
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{
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ExpectedPosition = transform.localPosition;
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m_moveDirection.x = Random.Range(-1.0f, 1.0f);
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m_moveDirection.y = Random.Range(-1.0f, 1.0f);
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m_moveDirection = Vector3.ClampMagnitude(m_moveDirection, m_speed);
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m_nextMoveDirection.x = -Mathf.Sign(m_moveDirection.x) * Random.Range(0f, 1.0f);
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m_nextMoveDirection.y = -Mathf.Sign(m_moveDirection.y) * Random.Range(0f, 1.0f);
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m_nextMoveDirection = Vector3.ClampMagnitude(m_nextMoveDirection, m_speed);
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}
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void FixedUpdate ()
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{
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// move a bit along our random direction
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transform.localPosition += MoveDirection;
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ExpectedPosition += MoveDirection;
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// make a slight correction to the position if we're not where we should be
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Vector3 correction = ExpectedPosition - transform.localPosition;
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correction = Vector3.ClampMagnitude(correction, MOVE_TOLERANCE);
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transform.localPosition += correction;
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// if we've gone too far from the center point, correct and change direction
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if (transform.localPosition.sqrMagnitude > (MAX_OFFSET*MAX_OFFSET))
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{
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transform.localPosition = Vector3.ClampMagnitude(transform.localPosition, MAX_OFFSET);
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ExpectedPosition = transform.localPosition;
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MoveDirection = NextMoveDirection;
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// select a the next randomish direction to move in
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m_nextMoveDirection.x = -Mathf.Sign(m_moveDirection.x) * Random.Range(0f, 1.0f);
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m_nextMoveDirection.y = -Mathf.Sign(m_moveDirection.y) * Random.Range(0f, 1.0f);
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m_nextMoveDirection = Vector3.ClampMagnitude(m_nextMoveDirection, m_speed);
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}
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}
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}
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}
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