codes combined (dash and jump)

Game/Assets/Scripts/DropletMovement.cs

@@ -1,19 +1,24 @@
 using UnityEngine;
+using System.Collections;
 
 public class DropletMovement : MonoBehaviour
 {
     private Rigidbody2D rb;
-    public float moveSpeed = 5f;
-    public float jumpingPower = 5f;
-    private Vector2 movement;
-    private Animator playerAnim; //for animation
-    private float xInput;
 
-    //helper variables
+    public float jumpingPower = 5f;
+    public float moveSpeed = 5f;
+
+    private Vector2 movement;
     private bool isGrounded = true;
-    [SerializeField] private float dashSpeed;
-    [SerializeField] private float dashDuration;
-    private float dashTime;
+
+    private bool canDash = true;
+    private bool isDashing;
+
+    public float dashingPower = 24f;
+    public float dashingTime = 0.2f;
+    public float dashingCooldown = 1f;
+
+    [SerializeField] private TrailRenderer tr;
 
     void Start()
     {
@@ -22,18 +27,64 @@ public class DropletMovement : MonoBehaviour
 
     void Update()
     {
+        if (isDashing)
+        {
+            return;
+        }
+
         movement.x = Input.GetAxisRaw("Horizontal");
 
-
-
-        if (isGrounded && Input.GetKeyDown(KeyCode.Space))
+        if (isGrounded &&
+            (Input.GetKeyDown(KeyCode.Space) ||
+             Input.GetKeyDown(KeyCode.UpArrow) ||
+             Input.GetKeyDown(KeyCode.W)))
         {
             rb.linearVelocity = new Vector2(rb.linearVelocity.x, jumpingPower);
         }
+
+        if (Input.GetKeyDown(KeyCode.LeftShift) && canDash)
+        {
+            StartCoroutine(Dash());
+        }
     }
 
     private void FixedUpdate()
     {
+        if (isDashing)
+        {
+            return;
+        }
+
         rb.linearVelocity = new Vector2(movement.x * moveSpeed, rb.linearVelocity.y);
     }
+
+    private IEnumerator Dash()
+    {
+        canDash = false;
+        isDashing = true;
+
+        float originalGravity = rb.gravityScale;
+        rb.gravityScale = 0f;
+
+        rb.linearVelocity = new Vector2(transform.localScale.x * dashingPower, 0f);
+
+        if (tr != null)
+        {
+            tr.emitting = true;
+        }
+
+        yield return new WaitForSeconds(dashingTime);
+
+        if (tr != null)
+        {
+            tr.emitting = false;
+        }
+
+        rb.gravityScale = originalGravity;
+        isDashing = false;
+
+        yield return new WaitForSeconds(dashingCooldown);
+
+        canDash = true;
+    }
 }