Player, player movement, camera control

3D FPS/Assets/KinematicCharacterController/Walkthrough/14- Climbing Ladders/Scripts/MyLadder.cs

@@ -0,0 +1,71 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace KinematicCharacterController.Walkthrough.ClimbingLadders
+{
+    public class MyLadder : MonoBehaviour
+    {
+        // Ladder segment
+        public Vector3 LadderSegmentBottom;
+        public float LadderSegmentLength;
+
+        // Points to move to when reaching one of the extremities and moving off of the ladder
+        public Transform BottomReleasePoint;
+        public Transform TopReleasePoint;
+
+        // Gets the position of the bottom point of the ladder segment
+        public Vector3 BottomAnchorPoint
+        {
+            get
+            {
+                return transform.position + transform.TransformVector(LadderSegmentBottom);
+            }
+        }
+
+        // Gets the position of the top point of the ladder segment
+        public Vector3 TopAnchorPoint
+        {
+            get
+            {
+                return transform.position + transform.TransformVector(LadderSegmentBottom) + (transform.up * LadderSegmentLength);
+            }
+        }
+
+        public Vector3 ClosestPointOnLadderSegment(Vector3 fromPoint, out float onSegmentState)
+        {
+            Vector3 segment = TopAnchorPoint - BottomAnchorPoint;            
+            Vector3 segmentPoint1ToPoint = fromPoint - BottomAnchorPoint;
+            float pointProjectionLength = Vector3.Dot(segmentPoint1ToPoint, segment.normalized);
+
+            // When higher than bottom point
+            if(pointProjectionLength > 0)
+            {
+                // If we are not higher than top point
+                if (pointProjectionLength <= segment.magnitude)
+                {
+                    onSegmentState = 0;
+                    return BottomAnchorPoint + (segment.normalized * pointProjectionLength);
+                }
+                // If we are higher than top point
+                else
+                {
+                    onSegmentState = pointProjectionLength - segment.magnitude;
+                    return TopAnchorPoint;
+                }
+            }
+            // When lower than bottom point
+            else
+            {
+                onSegmentState = pointProjectionLength;
+                return BottomAnchorPoint;
+            }
+        }
+
+        private void OnDrawGizmos()
+        {
+            Gizmos.color = Color.cyan;
+            Gizmos.DrawLine(BottomAnchorPoint, TopAnchorPoint);
+        }
+    }
+}