diff --git a/FPSController.cs b/FPSController.cs
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+++ b/FPSController.cs
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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+// Generic First-Person-Shooter-like Controller
+[RequireComponent(typeof(CharacterController))]
+public class FPSController : MonoBehaviour
+{
+ [Tooltip("How fast the player moves when walking (default move speed).")]
+ [SerializeField]
+ private float movementWalkSpeed = 6.0f;
+
+ [Tooltip("How fast the player moves when running.")]
+ [SerializeField]
+ private float movementRunSpeed = 11.0f;
+
+ [Tooltip("If true, diagonal speed (when strafing + moving forward or back) can't exceed normal move speed; otherwise it's about 1.4 times faster.")]
+ [SerializeField]
+ public bool movementLimitDiagonalSpeed = true;
+
+ [Tooltip("If checked, the run key toggles between running and walking. Otherwise player runs if the key is held down.")]
+ [SerializeField]
+ private bool movementToggleRun = false;
+
+ [Tooltip("How high the player jumps when hitting the jump button.")]
+ [SerializeField]
+ private float movementJumpSpeed = 8.0f;
+
+ [Tooltip("How fast the player falls when not standing on anything.")]
+ [SerializeField]
+ private float movementGravity = 20.0f;
+
+ [Tooltip("Units that player can fall before a falling function is run. To disable, type \"infinity\" in the inspector.")]
+ [SerializeField]
+ private float movementFallingThreshold = 10.0f;
+
+ [Tooltip("If the player ends up on a slope which is at least the Slope Limit as set on the character controller, then he will slide down.")]
+ [SerializeField]
+ private bool movementSlideWhenOverSlopeLimit = false;
+
+ [Tooltip("If checked and the player is on an object tagged \"Slide\", he will slide down it regardless of the slope limit.")]
+ [SerializeField]
+ private bool movementSlideOnTaggedObjects = false;
+
+ [Tooltip("How fast the player slides when on slopes as defined above.")]
+ [SerializeField]
+ private float movementSlideSpeed = 12.0f;
+
+ [Tooltip("If checked, then the player can change direction while in the air.")]
+ [SerializeField]
+ private bool movementAirControl = false;
+
+ [Tooltip("Small amounts of this results in bumping when walking down slopes, but large amounts results in falling too fast.")]
+ [SerializeField]
+ private float movementAntiBumpFactor = .75f;
+
+ [Tooltip("Player must be grounded for at least this many physics frames before being able to jump again; set to 0 to allow bunny hopping.")]
+ [SerializeField]
+ private int movementAntiBunnyHopFactor = 1;
+
+ private Vector3 movementMoveDirection = Vector3.zero;
+ private bool movementGrounded = false;
+ private CharacterController movementController;
+ private Transform movementTransform;
+ private float movementSpeed;
+ private RaycastHit movementHit;
+ private float movementFallStartLevel;
+ private bool movementFalling;
+ private float movementSlideLimit;
+ private float movementRayDistance;
+ private Vector3 movementContactPoint;
+ private bool movementPlayerControl = false;
+ private int movementJumpTimer;
+
+
+ private void Start()
+ {
+ // Saving component references to improve performance.
+ movementTransform = GetComponent<Transform>();
+ movementController = GetComponent<CharacterController>();
+
+ // Setting initial values.
+ movementSpeed = movementWalkSpeed;
+ movementRayDistance = movementController.height * .5f + movementController.radius;
+ movementSlideLimit = movementController.slopeLimit - .1f;
+ movementJumpTimer = movementAntiBunnyHopFactor;
+ }
+
+
+ private void Update()
+ {
+ // If the run button is set to toggle, then switch between walk/run speed. (We use Update for this...
+ // FixedUpdate is a poor place to use GetButtonDown, since it doesn't necessarily run every frame and can miss the event)
+ if (movementToggleRun && movementGrounded && Input.GetButtonDown("Run"))
+ {
+ movementSpeed = (movementSpeed == movementWalkSpeed ? movementRunSpeed : movementWalkSpeed);
+ }
+ }
+
+
+ private void FixedUpdate()
+ {
+ float inputX = Input.GetAxis("Horizontal");
+ float inputY = Input.GetAxis("Vertical");
+
+ // If both horizontal and vertical are used simultaneously, limit speed (if allowed), so the total doesn't exceed normal move speed
+ float inputModifyFactor = (inputX != 0.0f && inputY != 0.0f && movementLimitDiagonalSpeed) ? .7071f : 1.0f;
+
+ if (movementGrounded)
+ {
+ bool sliding = false;
+ // See if surface immediately below should be slid down. We use this normally rather than a ControllerColliderHit point,
+ // because that interferes with step climbing amongst other annoyances
+ if (Physics.Raycast(movementTransform.position, -Vector3.up, out movementHit, movementRayDistance))
+ {
+ if (Vector3.Angle(movementHit.normal, Vector3.up) > movementSlideLimit)
+ {
+ sliding = true;
+ }
+ }
+ // However, just raycasting straight down from the center can fail when on steep slopes
+ // So if the above raycast didn't catch anything, raycast down from the stored ControllerColliderHit point instead
+ else
+ {
+ Physics.Raycast(movementContactPoint + Vector3.up, -Vector3.up, out movementHit);
+ if (Vector3.Angle(movementHit.normal, Vector3.up) > movementSlideLimit)
+ {
+ sliding = true;
+ }
+ }
+
+ // If we were falling, and we fell a vertical distance greater than the threshold, run a falling damage routine
+ if (movementFalling)
+ {
+ movementFalling = false;
+ if (movementTransform.position.y < movementFallStartLevel - movementFallingThreshold)
+ {
+ OnFell(movementFallStartLevel - movementTransform.position.y);
+ }
+ }
+
+ // If running isn't on a toggle, then use the appropriate speed depending on whether the run button is down
+ if (!movementToggleRun)
+ {
+ movementSpeed = Input.GetKey(KeyCode.LeftShift) ? movementRunSpeed : movementWalkSpeed;
+ }
+
+ // If sliding (and it's allowed), or if we're on an object tagged "Slide", get a vector pointing down the slope we're on
+ if ((sliding && movementSlideWhenOverSlopeLimit) || (movementSlideOnTaggedObjects && movementHit.collider.tag == "Slide"))
+ {
+ Vector3 hitNormal = movementHit.normal;
+ movementMoveDirection = new Vector3(hitNormal.x, -hitNormal.y, hitNormal.z);
+ Vector3.OrthoNormalize(ref hitNormal, ref movementMoveDirection);
+ movementMoveDirection *= movementSlideSpeed;
+ movementPlayerControl = false;
+ }
+ // Otherwise recalculate moveDirection directly from axes, adding a bit of -y to avoid bumping down inclines
+ else
+ {
+ movementMoveDirection = new Vector3(inputX * inputModifyFactor, -movementAntiBumpFactor, inputY * inputModifyFactor);
+ movementMoveDirection = movementTransform.TransformDirection(movementMoveDirection) * movementSpeed;
+ movementPlayerControl = true;
+ }
+
+ // Jump! But only if the jump button has been released and player has been grounded for a given number of frames
+ if (!Input.GetButton("Jump"))
+ {
+ movementJumpTimer++;
+ }
+ else if (movementJumpTimer >= movementAntiBunnyHopFactor)
+ {
+ movementMoveDirection.y = movementJumpSpeed;
+ movementJumpTimer = 0;
+ }
+ }
+ else
+ {
+ // If we stepped over a cliff or something, set the height at which we started falling
+ if (!movementFalling)
+ {
+ movementFalling = true;
+ movementFallStartLevel = movementTransform.position.y;
+ }
+
+ // If air control is allowed, check movement but don't touch the y component
+ if (movementAirControl && movementPlayerControl)
+ {
+ movementMoveDirection.x = inputX * movementSpeed * inputModifyFactor;
+ movementMoveDirection.z = inputY * movementSpeed * inputModifyFactor;
+ movementMoveDirection = movementTransform.TransformDirection(movementMoveDirection);
+ }
+ }
+
+ // Apply gravity
+ movementMoveDirection.y -= movementGravity * Time.deltaTime;
+
+ // Move the controller, and set grounded true or false depending on whether we're standing on something
+ movementGrounded = (movementController.Move(movementMoveDirection * Time.deltaTime) & CollisionFlags.Below) != 0;
+ }
+
+
+ // Store point that we're in contact with for use in FixedUpdate if needed
+ private void OnControllerColliderHit(ControllerColliderHit hit)
+ {
+ movementContactPoint = hit.point;
+ }
+
+
+ // This is the place to apply things like fall damage. You can give the player hitpoints and remove some
+ // of them based on the distance fallen, play sound effects, etc.
+ private void OnFell(float fallDistance)
+ {
+ print("Ouch! Fell " + fallDistance + " units!");
+ }
+}
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