trying the sebastian lague technique

Assets/Prefabs/Player.prefab

@@ -9,11 +9,12 @@ GameObject:
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-  - component: {fileID: 7623484707498698197}
-  - component: {fileID: 7050504111816705868}
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   m_Name: Player
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+  m_TagString: Player
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---- !u!114 &7623484707498698197
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-  jumpForce: 10
-  cc: {fileID: 0}
---- !u!143 &7050504111816705868
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+  m_Layer: 10
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   m_Icon: {fileID: 0}

Assets/Scripts/MoveController.cs

@@ -0,0 +1,69 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[RequireComponent(typeof(BoxCollider))]
+public class MoveController : MonoBehaviour
+{
+    public const float skinWidth = 0.015f;
+    public int horizontalRayCount = 4;
+    public int verticalRayCount = 4;
+
+    new private BoxCollider collider;
+    private RaycastOrigins raycastOrigins;
+    private float horizontalRaySpacing;
+    private float verticalRaySpacing;
+
+    void Start() {
+        collider = GetComponent<BoxCollider>();
+    }
+
+    void Update() {
+        UpdateRaycastOrigins();
+        CalculateRaySpacing();
+
+        // bottom face
+        for (int i = 0; i < verticalRayCount; i++) {
+            for (int j = 0; j < verticalRayCount; j++) {
+                Debug.DrawRay(raycastOrigins.bottomFrontLeft + Vector3.right * verticalRaySpacing * i - Vector3.back * verticalRaySpacing * j, Vector3.down, Color.red);
+            }
+        }
+    }
+
+    void UpdateRaycastOrigins() {
+        Bounds bounds = collider.bounds;
+        bounds.Expand(skinWidth * -2);
+
+        raycastOrigins.bottomFrontLeft = new Vector3(bounds.min.x, bounds.min.y, bounds.min.z);  // 0 0 0
+        raycastOrigins.bottomBackLeft = new Vector3(bounds.min.x, bounds.min.y, bounds.max.z);   // 0 0 1
+        raycastOrigins.topFrontLeft = new Vector3(bounds.min.x, bounds.max.y, bounds.min.z);     // 0 1 0
+        raycastOrigins.topBackLeft = new Vector3(bounds.min.x, bounds.max.y, bounds.max.z);      // 0 1 1
+
+        raycastOrigins.bottomFrontRight = new Vector3(bounds.max.x, bounds.min.y, bounds.min.z); // 1 0 0
+        raycastOrigins.bottomBackRight = new Vector3(bounds.max.x, bounds.min.y, bounds.max.z);  // 1 0 1
+        raycastOrigins.topFrontRight = new Vector3(bounds.max.x, bounds.max.y, bounds.min.z);    // 1 1 0
+        raycastOrigins.topBackRight = new Vector3(bounds.max.x, bounds.max.y, bounds.max.z);     // 1 1 1
+    }
+
+    void CalculateRaySpacing() {
+        Bounds bounds = collider.bounds;
+        bounds.Expand(skinWidth * -2);
+
+        if (horizontalRayCount < 2) { horizontalRayCount = 2; }
+        if (verticalRayCount < 2) { verticalRayCount = 2; }
+
+        horizontalRaySpacing = bounds.size.y / (horizontalRayCount - 1);
+        verticalRaySpacing = bounds.size.x / (verticalRayCount - 1);
+    }
+
+    struct RaycastOrigins {
+        public Vector3 topBackLeft;
+        public Vector3 topBackRight;
+        public Vector3 topFrontLeft;
+        public Vector3 topFrontRight;
+        public Vector3 bottomBackLeft;
+        public Vector3 bottomBackRight;
+        public Vector3 bottomFrontLeft;
+        public Vector3 bottomFrontRight;
+    }
+}

Assets/Scripts/MoveController.cs.meta

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+guid: 721dfc7e43d81b644a34024174f78c4e
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Assets/Scripts/PlayerController.cs

@@ -2,39 +2,17 @@
 using System.Collections.Generic;
 using UnityEngine;
 
+[RequireComponent(typeof(MoveController))]
 public class PlayerController : MonoBehaviour {
-    public float moveSpeed;
-    public float jumpForce;
-    public CharacterController cc;
-    public float gravityScale;
-
-    private Vector3 moveDirection;
+    public MoveController moveController;
 
     void Start() {
-        cc = GetComponent<CharacterController>();
+        moveController = GetComponent<MoveController>();
     }
 
     void Update() {
-        float dx = Input.GetAxis("Horizontal") * moveSpeed;
-        moveDirection = new Vector3(dx, moveDirection.y, 0f);
-        if (cc.isGrounded) {
-            if (Input.GetButtonDown("Jump")) {
-                moveDirection.y = jumpForce;
-            } else {
-                moveDirection.y = moveDirection.y + Physics.gravity.y*gravityScale*Time.deltaTime;
-                if (moveDirection.y < 0f) {
-                    moveDirection.y = 0f;
-                }
-            }
-        } else {
-            moveDirection.y = moveDirection.y + Physics.gravity.y*gravityScale*Time.deltaTime;
-        }
-        Debug.Log(moveDirection);
-        cc.Move(moveDirection * Time.deltaTime);
     }
 
     void FixedUpdate() {
-        float motor = Input.GetAxis("Vertical");
-        float steering = Input.GetAxis("Horizontal");
     }
 }

ProjectSettings/TagManager.asset

@@ -1,43 +1,43 @@
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