Improve dashes

Assets/Scripts/PlayerControl.cs

@@ -12,8 +12,13 @@ public class PlayerControl : MonoBehaviour
     public float groundDamping = 20f; // how fast do we change direction? higher means faster
     public float inAirDamping = 5f;
     public float targetJumpHeight = 2f;
-    public bool canDash = true;
-    public float dashCoolDown = 0.25f;
+    public float lastDashStart = float.NegativeInfinity;
+    public float currentDashDirection = 0.0f;
+    public float dashDirection = 1.0f;
+    public float dashCompletionTime = 0.25f;
+    public float dashStartSpeed = 20.0f;
+    public float dashEndSpeed = 8.0f;
+    public float dashCoolDown = 0.5f;
     // public float jumpWaitTime = 2.0;
 
     [HideInInspector]
@@ -93,7 +98,28 @@ public class PlayerControl : MonoBehaviour
         if (_controller.isGrounded)
             velocity.y = 0;
 
+        if (Input.GetKey (goRightKeyCode))
+        {
+          dashDirection = 1.0f;
+        }
+        else if (Input.GetKey (goLeftKeyCode))
+        {
+          dashDirection = -1.0f;
+        }
 
+        if (canDash () && Input.GetKey (dashKeyCode))
+        {
+          lastDashStart = Time.time;
+          currentDashDirection = dashDirection;
+        }
+
+        if (isDashing ())
+        {
+            velocity.x = Mathf.Lerp(currentDashDirection * dashStartSpeed, currentDashDirection * dashEndSpeed, getDashTime() / dashCompletionTime);
+            velocity.y = 0;
+        }
+        else
+        {
           if (Input.GetKey(goRightKeyCode))
           {
               normalizedHorizontalSpeed = 1;
@@ -117,20 +143,6 @@ public class PlayerControl : MonoBehaviour
               //if (_controller.isGrounded)
           }
 
-        if (canDash && Input.GetKey(dashKeyCode))
-        {
-            float direction = Mathf.Sign(transform.localScale.x);
-            if (normalizedHorizontalSpeed != 0)
-            {
-                // player pressed a movement button so prefer the new direction
-                direction = Mathf.Sign(normalizedHorizontalSpeed);
-            }
-
-            normalizedHorizontalSpeed = 5 * direction;
-            canDash = false;
-            Invoke("EnableDash", dashCoolDown);
-        }
-
           if (Input.GetKeyDown(jumpKeyCode))
           {
               //to avoid DOUBLE JUMP
@@ -148,11 +160,6 @@ public class PlayerControl : MonoBehaviour
           // apply gravity before moving
           velocity.y += gravity * Time.deltaTime;
 
-        _controller.move(velocity * Time.deltaTime);
-
-
-
-
           /*==========Power Ups // Bullet management ===*/
           if (Input.GetKeyDown(shootKeyCode))
           {
@@ -163,12 +170,25 @@ public class PlayerControl : MonoBehaviour
               coolDown();
             }
           }
+        }
 
+        _controller.move(velocity * Time.deltaTime);
+    }
+
+    private float getDashTime ()
+    {
+        return Time.time - lastDashStart;
+    }
+
+    private bool isDashing ()
+    {
+        float dashTime = getDashTime();
+        return 0 <= dashTime && dashTime < dashCompletionTime;
     }
 
-    void EnableDash()
+    private bool canDash ()
     {
-        canDash = true;
+        return getDashTime() >= dashCompletionTime + dashCoolDown;
     }
 
     /*==========Power Ups // Bullet management ===*/