109 lines
4.1 KiB
C#
109 lines
4.1 KiB
C#
using UnityEngine;
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namespace Unity.Cinemachine.Samples
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{
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/// <summary>
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/// This is a very basic 2D implementation of SimplePlayerControllerBase.
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///
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/// It requires a [Rigidbody2D](https://docs.unity3d.com/ScriptReference/Rigidbody2D.html) component
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/// to be placed on the player GameObject. Because it works with a Rigidbody2D, motion control is
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/// implemented in the `FixedUpdate()` method.
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///
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/// Ground detection only works if the player has a small trigger collider under its feet.
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/// </summary>
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[RequireComponent(typeof(Rigidbody2D))]
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public class SimplePlayerController2D : SimplePlayerControllerBase
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{
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[Tooltip("Reference to the child object that holds the player's visible geometry. "
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+ "'It is rotated to face the direction of motion")]
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public Transform PlayerGeometry;
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[Tooltip("Makes possible to influence the direction of motion while the character is "
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+ "in the air. Otherwise, the more realistic rule that the feet must be touching the ground applies.")]
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public bool MotionControlWhileInAir;
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bool m_IsSprinting;
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bool m_IsGrounded;
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Rigidbody2D m_Rigidbody2D;
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#if UNITY_6000_1_OR_NEWER
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public override bool IsMoving => Mathf.Abs(m_Rigidbody2D.linearVelocity.x) > 0.01f;
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#else
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#pragma warning disable CS0618 // obsolete for 6000.0.0f11 and newer
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public override bool IsMoving => Mathf.Abs(m_Rigidbody2D.velocity.x) > 0.01f;
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#pragma warning restore CS0618
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#endif
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public bool IsSprinting => m_IsSprinting;
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public bool IsJumping => !m_IsGrounded;
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void Start() => TryGetComponent(out m_Rigidbody2D);
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private void OnEnable()
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{
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m_IsGrounded = true;
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m_IsSprinting = false;
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}
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void FixedUpdate()
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{
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PreUpdate?.Invoke();
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#if UNITY_6000_1_OR_NEWER
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var vel = m_Rigidbody2D.linearVelocity;
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#else
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#pragma warning disable CS0618 // obsolete for 6000.0.0f11 and newer
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var vel = m_Rigidbody2D.velocity;
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#pragma warning restore CS0618
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#endif
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// Compute the new velocity and move the player, but only if not mid-jump
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if (m_IsGrounded || MotionControlWhileInAir)
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{
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// Read the input from the user
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m_IsSprinting = Sprint.Value > 0.5f;
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vel.x = MoveX.Value * (m_IsSprinting ? SprintSpeed : Speed);
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if (m_IsGrounded && Mathf.Max(MoveZ.Value, Jump.Value) > 0.01f)
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vel.y = m_IsSprinting ? SprintJumpSpeed : JumpSpeed;
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}
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// Rotate the player to face movement direction
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if (PlayerGeometry.rotation != null)
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{
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if (vel.x > Speed * 0.5f)
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PlayerGeometry.rotation = Quaternion.Euler(new Vector3(0, 90, 0));
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if (vel.x < -Speed * 0.5f)
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PlayerGeometry.rotation = Quaternion.Euler(new Vector3(0, -90, 0));
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}
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#if UNITY_6000_1_OR_NEWER
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m_Rigidbody2D.linearVelocity = vel;
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#else
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#pragma warning disable CS0618 // obsolete for 6000.0.0f11 and newer
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m_Rigidbody2D.velocity = vel;
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#pragma warning restore CS0618
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#endif
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PostUpdate?.Invoke(
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new Vector3(0, vel.y, Mathf.Abs(vel.x)),
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m_IsSprinting ? JumpSpeed / SprintJumpSpeed : 1);
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}
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// Ground detection only works if the player has a small trigger collider under its feet
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void OnTriggerEnter2D(Collider2D collision)
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{
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if (!collision.isTrigger && !m_IsGrounded)
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{
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EndJump?.Invoke();
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Landed.Invoke();
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m_IsGrounded = true;
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}
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}
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void OnTriggerExit2D(Collider2D collision)
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{
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if (!collision.isTrigger && m_IsGrounded)
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{
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StartJump?.Invoke();
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m_IsGrounded = false;
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}
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}
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void OnTriggerStay2D(Collider2D collision) => OnTriggerEnter2D(collision);
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}
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}
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