hey Guys.
So I have seen a lot of people having issues with the basic character movement and Camera to follow your character/object or they just don’t want to use the JavaScript when they are using C#. I managed to re-write the original 3rd person JavaScript controls into C#.
Just create an object or use your custom character animation and drop these two files onto your object. It’s really that simple.
It’s only 2 files. One for the basic Character movement and a seconds one for the Camera movement.
Movement.cs
using UnityEngine;
using System.Collections;
[RequireComponent (typeof (CharacterController))]
public class Movement : MonoBehaviour {
#region Variables
// The speed when walking
public float walkSpeed = 2.0f;
// after trotAfterSeconds of walking we trot with trotSpeed
public float trotSpeed = 3.5f;
// when pressing "Fire3" button (cmd) we start running
public float runSpeed = 6.0f;
public float inAirControlAcceleration = 3.0f;
// How high do we jump when pressing jump and letting go immediately
public float jumpHeight = 0.5f;
// The gravity for the character
public float gravity = 20.0f;
// The gravity in controlled descent mode
public float speedSmoothing = 10.0f;
public float rotateSpeed = 100.0f;
public float trotAfterSeconds = 3.0f;
public bool canJump = true;
private float jumpRepeatTime = 0.05f;
private float jumpTimeout = 0.15f;
private float groundedTimeout = 0.25f;
// The camera doesnt start following the target immediately but waits for a split second to avoid too much waving around.
private float lockCameraTimer = 0.0f;
// The current move direction in x-z
private Vector3 moveDirection = Vector3.zero;
// The current vertical speed
private float verticalSpeed = 0.0f;
// The current x-z move speed
private float moveSpeed = 0.0f;
// The last collision flags returned from controller.Move
private CollisionFlags collisionFlags;
// Are we jumping? (Initiated with jump button and not grounded yet)
private bool jumping = false;
private bool jumpingReachedApex = false;
// Are we moving backwards (This locks the camera to not do a 180 degree spin)
private bool movingBack = false;
// Is the user pressing any keys?
private bool isMoving = false;
// When did the user start walking (Used for going into trot after a while)
private float walkTimeStart = 0.0f;
// Last time the jump button was clicked down
private float lastJumpButtonTime = -10.0f;
// Last time we performed a jump
private float lastJumpTime = -1.0f;
// the height we jumped from (Used to determine for how long to apply extra jump power after jumping.)
private float lastJumpStartHeight = 0.0f;
private Vector3 inAirVelocity = Vector3.zero;
private float lastGroundedTime = 0.0f;
private bool isControllable = true;
// Main Camera
public Transform cameraMain;
#endregion
void Awake ()
{
moveDirection = transform.TransformDirection(Vector3.forward);
cameraMain = transform;
}
void UpdateSmoothedMovementDirection ()
{
Transform cameraTransform = cameraMain;
bool grounded = IsGrounded();
// Forward vector relative to the camera along the x-z plane
Vector3 forward = cameraTransform.TransformDirection(Vector3.forward);
forward.y = 0;
forward = forward.normalized;
// Right vector relative to the camera
// Always orthogonal to the forward vector
Vector3 right = new Vector3(forward.z, 0, -forward.x);
float v = Input.GetAxisRaw("Vertical");
float h = Input.GetAxisRaw("Horizontal");
// Are we moving backwards or looking backwards
if (v < -0.2f)
movingBack = true;
else
movingBack = false;
bool wasMoving = isMoving;
isMoving = Mathf.Abs (h) > 0.1f || Mathf.Abs (v) > 0.1f;
// Target direction relative to the camera
Vector3 targetDirection = h * right + v * forward;
// Grounded controls
if (grounded)
{
// Lock camera for short period when transitioning moving standing still
lockCameraTimer += Time.deltaTime;
if (isMoving != wasMoving)
lockCameraTimer = 0.0f;
// We store speed and direction seperately,
// so that when the character stands still we still have a valid forward direction
// moveDirection is always normalized, and we only update it if there is user input.
if (targetDirection != Vector3.zero)
{
// If we are really slow, just snap to the target direction
if (moveSpeed < walkSpeed * 0.9f grounded)
{
moveDirection = targetDirection.normalized;
}
// Otherwise smoothly turn towards it
else
{
moveDirection = Vector3.RotateTowards(moveDirection, targetDirection, rotateSpeed * Mathf.Deg2Rad * Time.deltaTime, 1000);
moveDirection = moveDirection.normalized;
}
}
// Smooth the speed based on the current target direction
float curSmooth = speedSmoothing * Time.deltaTime;
// Choose target speed
//* We want to support analog input but make sure you cant walk faster diagonally than just forward or sideways
float targetSpeed = Mathf.Min(targetDirection.magnitude, 1.0f);
// Pick speed modifier
if (Input.GetKey (KeyCode.LeftShift) | Input.GetKey (KeyCode.RightShift))
{
targetSpeed *= runSpeed;
}
else if (Time.time - trotAfterSeconds > walkTimeStart)
{
targetSpeed *= trotSpeed;
}
else
{
targetSpeed *= walkSpeed;
}
moveSpeed = Mathf.Lerp(moveSpeed, targetSpeed, curSmooth);
// Reset walk time start when we slow down
if (moveSpeed < walkSpeed * 0.3f)
walkTimeStart = Time.time;
}
// In air controls
else
{
// Lock camera while in air
if (jumping)
lockCameraTimer = 0.0f;
if (isMoving)
inAirVelocity += targetDirection.normalized * Time.deltaTime * inAirControlAcceleration;
}
}
void ApplyJumping ()
{
// Prevent jumping too fast after each other
if (lastJumpTime + jumpRepeatTime > Time.time)
return;
if (IsGrounded()) {
// Jump
// - Only when pressing the button down
// - With a timeout so you can press the button slightly before landing
if (canJump Time.time < lastJumpButtonTime + jumpTimeout) {
verticalSpeed = CalculateJumpVerticalSpeed (jumpHeight);
SendMessage("DidJump", SendMessageOptions.DontRequireReceiver);
}
}
}
void ApplyGravity ()
{
if (isControllable) // don't move player at all if not controllable.
{
// Apply gravity
bool jumpButton = Input.GetButton("Jump");
// When we reach the apex of the jump we send out a message
if (jumping !jumpingReachedApex verticalSpeed <= 0.0f)
{
jumpingReachedApex = true;
SendMessage("DidJumpReachApex", SendMessageOptions.DontRequireReceiver);
}
if (IsGrounded ())
verticalSpeed = 0.0f;
else
verticalSpeed -= gravity * Time.deltaTime;
}
}
float CalculateJumpVerticalSpeed (float targetJumpHeight)
{
// From the jump height and gravity we deduce the upwards speed
// for the character to reach at the apex.
return Mathf.Sqrt(2 * targetJumpHeight * gravity);
}
void DidJump ()
{
jumping = true;
jumpingReachedApex = false;
lastJumpTime = Time.time;
lastJumpStartHeight = transform.position.y;
lastJumpButtonTime = -10;
}
void Update() {
if (!isControllable)
{
// kill all inputs if not controllable.
Input.ResetInputAxes();
}
if (Input.GetButtonDown ("Jump"))
{
lastJumpButtonTime = Time.time;
}
UpdateSmoothedMovementDirection();
// Apply gravity
// - extra power jump modifies gravity
// - controlledDescent mode modifies gravity
ApplyGravity ();
// Apply jumping logic
ApplyJumping ();
// Calculate actual motion
Vector3 movement = moveDirection * moveSpeed + new Vector3 (0, verticalSpeed, 0) + inAirVelocity;
movement *= Time.deltaTime;
// Move the controller
//CharacterController controller = new GetComponent<CharacterController>();
CharacterController controller = GetComponent<CharacterController>();
collisionFlags = controller.Move(movement);
// Set rotation to the move direction
if (IsGrounded())
{
transform.rotation = Quaternion.LookRotation(moveDirection);
}
else
{
var xzMove = movement;
xzMove.y = 0;
if (xzMove.sqrMagnitude > 0.001)
{
transform.rotation = Quaternion.LookRotation(xzMove);
}
}
// We are in jump mode but just became grounded
if (IsGrounded())
{
lastGroundedTime = Time.time;
inAirVelocity = Vector3.zero;
if (jumping)
{
jumping = false;
SendMessage("DidLand", SendMessageOptions.DontRequireReceiver);
}
}
}
void OnControllerColliderHit (ControllerColliderHit hit)
{
// Debug.DrawRay(hit.point, hit.normal);
if (hit.moveDirection.y > 0.01)
return;
}
float GetSpeed () {
return moveSpeed;
}
public bool IsJumping () {
return jumping;
}
bool IsGrounded () {
return (collisionFlags CollisionFlags.CollidedBelow) != 0;
}
Vector3 GetDirection () {
return moveDirection;
}
public bool IsMovingBackwards () {
return movingBack;
}
public float GetLockCameraTimer ()
{
return lockCameraTimer;
}
bool IsMoving () //BOOLEAN MAYBE?
{
return Mathf.Abs(Input.GetAxisRaw("Vertical")) + Mathf.Abs(Input.GetAxisRaw("Horizontal")) > 0.5f;
}
bool HasJumpReachedApex ()
{
return jumpingReachedApex;
}
bool IsGroundedWithTimeout ()
{
return lastGroundedTime + groundedTimeout > Time.time;
}
void Reset ()
{
gameObject.tag = "Player";
}
}
enum CharacterState {
Idle = 0,
Walking = 1,
Trotting = 2,
Running = 3,
Jumping = 4,
}
pCamera.cs
using UnityEngine;
using System.Collections;
public class pCamera : MonoBehaviour {
public Transform cameraTransform;
private Transform _target;
// The distance in the x-z plane to the target
public float distance = 7.0f;
// the height we want the camera to be above the target
public float height = 3.0f;
public float angularSmoothLag = 0.3f;
public float angularMaxSpeed = 120.0f;
public float heightSmoothLag = 0.3f;
public float snapSmoothLag = 0.2f;
public float snapMaxSpeed = 720.0f;
public float clampHeadPositionScreenSpace = 0.75f;
public float lockCameraTimeout = 0.2f;
private Vector3 headOffset = Vector3.zero;
private Vector3 centerOffset = Vector3.zero;
private float heightVelocity = 0.0f;
private float angleVelocity = 0.0f;
private bool snap = false;
private Movement controller;
private float targetHeight = 100000.0f;
void Awake ()
{
if(!cameraTransform Camera.main)
cameraTransform = Camera.main.transform;
if(!cameraTransform) {
Debug.Log("Please assign a camera to the Camera script.");
enabled = false;
}
_target = transform;
if (_target)
{
controller = _target.GetComponent<Movement>();
}
if (controller)
{
Collider characterController = _target.collider;
centerOffset = characterController.bounds.center - _target.position;
headOffset = centerOffset;
headOffset.y = characterController.bounds.max.y - _target.position.y;
}
else
Debug.Log("Please assign a target to the camera that has a ThirdPersonController script attached.");
Cut(_target, centerOffset);
}
void DebugDrawStuff ()
{
Debug.DrawLine(_target.position, _target.position + headOffset);
}
float AngleDistance (float a, float b)
{
a = Mathf.Repeat(a, 360);
b = Mathf.Repeat(b, 360);
return Mathf.Abs(b - a);
}
void Apply (Transform dummyTarget, Vector3 dummyCenter)
{
// Early out if we don't have a target
if (!controller)
return;
Vector3 targetCenter = _target.position + centerOffset;
Vector3 targetHead = _target.position + headOffset;
// DebugDrawStuff();
// Calculate the current target rotation angles
float originalTargetAngle = _target.eulerAngles.y;
float currentAngle = cameraTransform.eulerAngles.y;
// Adjust real target angle when camera is locked
float targetAngle = originalTargetAngle;
// When pressing Fire2 (alt) the camera will snap to the target direction real quick.
// It will stop snapping when it reaches the target
if (Input.GetButton("Fire2"))
snap = true;
if (snap)
{
// We are close to the target, so we can stop snapping now!
if (AngleDistance (currentAngle, originalTargetAngle) < 3.0)
snap = false;
currentAngle = Mathf.SmoothDampAngle(currentAngle, targetAngle, ref angleVelocity, snapSmoothLag, snapMaxSpeed);
}
// Normal camera motion
else
{
if (controller.GetLockCameraTimer () < lockCameraTimeout)
{
targetAngle = currentAngle;
}
// Lock the camera when moving backwards!
// * It is really confusing to do 180 degree spins when turning around.
if (AngleDistance (currentAngle, targetAngle) > 160 controller.IsMovingBackwards ())
targetAngle += 180;
currentAngle = Mathf.SmoothDampAngle(currentAngle, targetAngle, ref angleVelocity, angularSmoothLag, angularMaxSpeed);
}
// When jumping don't move camera upwards but only down!
if (controller.IsJumping ())
{
// We'd be moving the camera upwards, do that only if it's really high
float newTargetHeight = targetCenter.y + height;
if (newTargetHeight < targetHeight || newTargetHeight - targetHeight > 5)
targetHeight = targetCenter.y + height;
}
// When walking always update the target height
else
{
targetHeight = targetCenter.y + height;
}
// Damp the height
float currentHeight = cameraTransform.position.y;
currentHeight = Mathf.SmoothDamp(currentHeight, targetHeight, ref heightVelocity, heightSmoothLag);
// Convert the angle into a rotation, by which we then reposition the camera
Quaternion currentRotation = Quaternion.Euler(0, currentAngle, 0);
// Set the position of the camera on the x-z plane to:
// distance meters behind the target
cameraTransform.position = targetCenter;
cameraTransform.position += currentRotation * Vector3.back * distance;
// Set the height of the camera
cameraTransform.position = new Vector3(cameraTransform.position.x, currentHeight, cameraTransform.position.z);
// Always look at the target
SetUpRotation(targetCenter, targetHead);
}
void LateUpdate () {
Apply (transform, Vector3.zero);
}
void Cut (Transform dummyTarget, Vector3 dummyCenter)
{
var oldHeightSmooth = heightSmoothLag;
var oldSnapMaxSpeed = snapMaxSpeed;
var oldSnapSmooth = snapSmoothLag;
snapMaxSpeed = 10000;
snapSmoothLag = 0.001f;
heightSmoothLag = 0.001f;
snap = true;
Apply (transform, Vector3.zero);
heightSmoothLag = oldHeightSmooth;
snapMaxSpeed = oldSnapMaxSpeed;
snapSmoothLag = oldSnapSmooth;
}
void SetUpRotation (Vector3 centerPos, Vector3 headPos)
{
// Now it's getting hairy. The devil is in the details here, the big issue is jumping of course.
// * When jumping up and down we don't want to center the guy in screen space.
// This is important to give a feel for how high you jump and avoiding large camera movements.
//
// * At the same time we dont want him to ever go out of screen and we want all rotations to be totally smooth.
//
// So here is what we will do:
//
// 1. We first find the rotation around the y axis. Thus he is always centered on the y-axis
// 2. When grounded we make him be centered
// 3. When jumping we keep the camera rotation but rotate the camera to get him back into view if his head is above some threshold
// 4. When landing we smoothly interpolate towards centering him on screen
var cameraPos = cameraTransform.position;
var offsetToCenter = centerPos - cameraPos;
// Generate base rotation only around y-axis
Quaternion yRotation = Quaternion.LookRotation(new Vector3(offsetToCenter.x, 0, offsetToCenter.z));
Vector3 relativeOffset = Vector3.forward * distance + Vector3.down * height;
cameraTransform.rotation = yRotation * Quaternion.LookRotation(relativeOffset);
// Calculate the projected center position and top position in world space
Ray centerRay = cameraTransform.camera.ViewportPointToRay(new Vector3(.5f, 0.5f, 1));
Ray topRay = cameraTransform.camera.ViewportPointToRay(new Vector3(.5f, clampHeadPositionScreenSpace, 1));
Vector3 centerRayPos = centerRay.GetPoint(distance);
Vector3 topRayPos = topRay.GetPoint(distance);
float centerToTopAngle = Vector3.Angle(centerRay.direction, topRay.direction);
float heightToAngle = centerToTopAngle / (centerRayPos.y - topRayPos.y);
float extraLookAngle = heightToAngle * (centerRayPos.y - centerPos.y);
if (extraLookAngle < centerToTopAngle)
{
extraLookAngle = 0;
}
else
{
extraLookAngle = extraLookAngle - centerToTopAngle;
cameraTransform.rotation *= Quaternion.Euler(-extraLookAngle, 0, 0);
}
}
Vector3 GetCenterOffset ()
{
return centerOffset;
}
}
