movement acceleration

Assets/Prefabs/Player.prefab

@@ -76,9 +76,9 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 7e392b35ca7959444b61a3e29a242f2b, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+  jumpHeight: 3.5
+  jumpDuration: 0.4
   moveSpeed: 6
-  moveController: {fileID: 0}
-  velocity: {x: 0, y: 0, z: 0}
 --- !u!1 &6383496741659177281
 GameObject:
   m_ObjectHideFlags: 0

Assets/Scenes/SampleScene.unity

@@ -436,18 +436,7 @@ PrefabInstance:
       propertyPath: m_LocalEulerAnglesHint.z
       value: 0
       objectReference: {fileID: 0}
-    - target: {fileID: 6891912346901077427, guid: cd445451907d7274daea79c67e13a202,
-        type: 3}
-      propertyPath: collisionMask.m_Bits
-      value: 2048
-      objectReference: {fileID: 0}
-    - target: {fileID: 6383496741659177281, guid: cd445451907d7274daea79c67e13a202,
-        type: 3}
-      propertyPath: m_IsActive
-      value: 1
-      objectReference: {fileID: 0}
-    m_RemovedComponents:
-    - {fileID: 528243339991412957, guid: cd445451907d7274daea79c67e13a202, type: 3}
+    m_RemovedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: cd445451907d7274daea79c67e13a202, type: 3}
 --- !u!1001 &8206000050524585146
 PrefabInstance:

Assets/Scripts/MoveController.cs

@@ -130,6 +130,8 @@ public class MoveController : MonoBehaviour
         verticalRaySpacing = bounds.size.x / (verticalRayCount - 1);
     }
 
+    public bool Grounded() { return collisions.below; }
+
     struct RaycastOrigins {
         public Vector3 topBackLeft;
         public Vector3 topBackRight;

Assets/Scripts/PlayerController.cs

@@ -4,15 +4,23 @@ using UnityEngine;
 
 [RequireComponent(typeof(MoveController))]
 public class PlayerController : MonoBehaviour {
-
+    public float jumpHeight = 4f;
+    public float jumpDuration = 0.4f;
     public float moveSpeed = 6f;
-    public MoveController moveController;
+    public float accelerationTimeAirborne = 0.2f;
+    public float accelerationTimeGrounded = 0.05f;
 
-    private float gravity = -20f;
-    public Vector3 velocity;
+    private Vector3 velocity;
+    private float jumpVelocity;
+    private MoveController moveController;
+    private float gravity;
+    private float moveXSmoothing;
 
     void Start() {
         moveController = GetComponent<MoveController>();
+
+        gravity = -(2*jumpHeight)/Mathf.Pow(jumpDuration, 2f);
+        jumpVelocity = Mathf.Abs(gravity) * jumpDuration;
     }
 
     void Update() {
@@ -24,7 +32,12 @@ public class PlayerController : MonoBehaviour {
         }
 
         Vector2 input = new Vector2(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"));
-        velocity.x = input.x * moveSpeed;
+        if (Input.GetKeyDown(KeyCode.Space) && moveController.collisions.below) {
+            velocity.y = jumpVelocity;
+        }
+
+        float targetx = input.x * moveSpeed;
+        velocity.x = Mathf.SmoothDamp(velocity.x, targetx, ref moveXSmoothing, moveController.Grounded() ? accelerationTimeGrounded : accelerationTimeAirborne);
         velocity.y += gravity * Time.deltaTime;
         moveController.Move(velocity * Time.deltaTime);
     }