88 lines
2.8 KiB
C#
88 lines
2.8 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using MoreMountains.Feedbacks;
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using UnityEngine.Events;
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/// <summary>
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/// A very simple class used to make a character jump, designed to be used in Feel's Getting Started tutorial
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/// Yes the name is different from the one in the tutorial, it's to avoid conflicts if you were to name it exactly the same.
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/// </summary>
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public class GettingStartedTutorialHeroReference : MonoBehaviour
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{
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[Header("Hero Settings")]
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/// a key the Player has to press to make our Hero jump
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public KeyCode ActionKey = KeyCode.Space;
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/// the force to apply vertically to the Hero's rigidbody to make it jump up
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public float JumpForce = 8f;
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[Header("Feedbacks")]
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/// a MMFeedbacks to play when the Hero starts jumping
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public MMFeedbacks JumpFeedback;
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/// a MMFeedbacks to play when the Hero lands after a jump
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public MMFeedbacks LandingFeedback;
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[Header("Events")]
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/// a UnityEvent to fire when jumping
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public UnityEvent OnJump;
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/// a UnityEvent to fire when landing
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public UnityEvent OnLand;
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private const float _lowVelocity = 0.1f;
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private Rigidbody _rigidbody;
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private float _velocityLastFrame;
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private bool _jumping = false;
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/// <summary>
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/// On Awake we store our Rigidbody and force gravity to -30 on the y axis so that jumps feel better
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/// </summary>
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private void Awake()
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{
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_rigidbody = this.gameObject.GetComponent<Rigidbody>();
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Physics.gravity = Vector3.down * 30;
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}
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/// <summary>
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/// Every frame
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/// </summary>
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private void Update()
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{
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// we check if the Player has pressed our action key, and trigger a jump if that's the case
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if (Input.GetKeyDown(ActionKey) && !_jumping)
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{
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Jump();
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}
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// if we're jumping, were going down last frame, and have now reached an almost null velocity
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if (_jumping && (_velocityLastFrame < 0) && (Mathf.Abs(_rigidbody.velocity.y) < _lowVelocity))
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{
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// then we just landed, we reset our state
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_jumping = false;
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LandingFeedback?.PlayFeedbacks();
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if (OnLand != null)
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{
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OnLand.Invoke();
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}
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}
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// we store our velocity
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_velocityLastFrame = _rigidbody.velocity.y;
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}
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/// <summary>
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/// Makes our hero jump in the air
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/// </summary>
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private void Jump()
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{
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_rigidbody.AddForce(Vector3.up * JumpForce, ForceMode.Impulse);
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_jumping = true;
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JumpFeedback?.PlayFeedbacks();
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if (OnJump != null)
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{
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OnJump.Invoke();
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}
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}
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}
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