Unity3D研究院之第一人称第三人称角色控制组件修改C#版本（二十九）

using UnityEngine;
using System.Collections;

/**
 *  @Author : www.xuanyusong.com 
 */

[RequireComponent(typeof(CharacterController))]
[AddComponentMenu("Character/Character Motor")]

public class CharacterMotor : MonoBehaviour {

// Does this script currently respond to input?
public bool canControl  = true;

public bool useFixedUpdate = true;

// For the next variables, @System.NonSerialized tells Unity to not serialize the variable or show it in the inspector view.
// Very handy for organization!

// The current global direction we want the character to move in.
[System.NonSerialized]
public Vector3 inputMoveDirection = Vector3.zero;

// Is the jump button held down? We use this interface instead of checking
// for the jump button directly so this script can also be used by AIs.
[System.NonSerialized]
public bool inputJump  = false;

[System.Serializable]
public class CharacterMotorMovement
{

	// The maximum horizontal speed when moving
	public float maxForwardSpeed = 10.0f;
	public float maxSidewaysSpeed = 10.0f;
	public float maxBackwardsSpeed = 10.0f;

	// Curve for multiplying speed based on slope (negative = downwards)
	public AnimationCurve slopeSpeedMultiplier = new AnimationCurve(new Keyframe(-90, 1), new Keyframe(0, 1), new Keyframe(90, 0));

	// How fast does the character change speeds?  Higher is faster.
	public float maxGroundAcceleration = 30.0f;
	public float maxAirAcceleration = 20.0f;

	// The gravity for the character
	public float gravity = 10.0f;
	public float maxFallSpeed = 20.0f;

	// For the next variables, @System.NonSerialized tells Unity to not serialize the variable or show it in the inspector view.
	// Very handy for organization!

	// The last collision flags returned from controller.Move
	[System.NonSerialized]
	public CollisionFlags collisionFlags; 

	// We will keep track of the character's current velocity,
	[System.NonSerialized]
	public Vector3 velocity;

	// This keeps track of our current velocity while we're not grounded
	[System.NonSerialized]
	public Vector3 frameVelocity = Vector3.zero;

	[System.NonSerialized]
	public Vector3 hitPoint = Vector3.zero;

	[System.NonSerialized]
	public Vector3 lastHitPoint = new Vector3(Mathf.Infinity, 0, 0);
}

public CharacterMotorMovement movement = new CharacterMotorMovement();

public enum MovementTransferOnJump {
	None, // The jump is not affected by velocity of floor at all.
	InitTransfer, // Jump gets its initial velocity from the floor, then gradualy comes to a stop.
	PermaTransfer, // Jump gets its initial velocity from the floor, and keeps that velocity until landing.
	PermaLocked // Jump is relative to the movement of the last touched floor and will move together with that floor.
}

// We will contain all the jumping related variables in one helper class for clarity.	
[System.Serializable]
public class CharacterMotorJumping {
	// Can the character jump?
	public bool enabled = true;

	// How high do we jump when pressing jump and letting go immediately
	public float baseHeight = 1.0f;

	// We add extraHeight units (meters) on top when holding the button down longer while jumping
	public float extraHeight = 4.1f;

	// How much does the character jump out perpendicular to the surface on walkable surfaces?
	// 0 means a fully vertical jump and 1 means fully perpendicular.
	public float perpAmount  = 0.0f;

	// How much does the character jump out perpendicular to the surface on too steep surfaces?
	// 0 means a fully vertical jump and 1 means fully perpendicular.
	public float steepPerpAmount = 0.5f;

	// For the next variables, @System.NonSerialized tells Unity to not serialize the variable or show it in the inspector view.
	// Very handy for organization!

	// Are we jumping? (Initiated with jump button and not grounded yet)
	// To see if we are just in the air (initiated by jumping OR falling) see the grounded variable.
	[System.NonSerialized]
	public bool jumping = false;

	[System.NonSerialized]
	public bool holdingJumpButton = false;

	// the time we jumped at (Used to determine for how long to apply extra jump power after jumping.)
	[System.NonSerialized]
	public float lastStartTime = 0.0f;

	[System.NonSerialized]
	public float lastButtonDownTime = -100f;

	[System.NonSerialized]
	public Vector3 jumpDir = Vector3.up;
}

public CharacterMotorJumping  jumping = new CharacterMotorJumping();

[System.Serializable]
public class CharacterMotorMovingPlatform {
	public bool enabled = true;

	public MovementTransferOnJump movementTransfer = MovementTransferOnJump.PermaTransfer;

	[System.NonSerialized]
	public Transform hitPlatform;

	[System.NonSerialized]
	public Transform activePlatform;

	[System.NonSerialized]
	public Vector3 activeLocalPoint;

	[System.NonSerialized]
	public Vector3 activeGlobalPoint;

	[System.NonSerialized]
	public Quaternion activeLocalRotation;

	[System.NonSerialized]
	public Quaternion activeGlobalRotation;

	[System.NonSerialized]
	public Matrix4x4 lastMatrix;

	[System.NonSerialized]
	public Vector3 platformVelocity;

	[System.NonSerialized]
	public bool newPlatform;
}

public CharacterMotorMovingPlatform movingPlatform  = new CharacterMotorMovingPlatform();

[System.Serializable]
public class CharacterMotorSliding {
	// Does the character slide on too steep surfaces?
	public bool enabled = true;

	// How fast does the character slide on steep surfaces?
	public float slidingSpeed  = 15f;

	// How much can the player control the sliding direction?
	// If the value is 0.5 the player can slide sideways with half the speed of the downwards sliding speed.
	public float sidewaysControl = 1.0f;

	// How much can the player influence the sliding speed?
	// If the value is 0.5 the player can speed the sliding up to 150% or slow it down to 50%.
	public float speedControl  = 0.4f;
}

public CharacterMotorSliding sliding  = new CharacterMotorSliding();

[System.NonSerialized]
public bool grounded = true;

[System.NonSerialized]
public Vector3 groundNormal = Vector3.zero;

private Vector3  lastGroundNormal = Vector3.zero;

private Transform tr;

private CharacterController  controller ;

void Awake () {
	controller = GetComponent <CharacterController>();
	tr = transform;
}

private void UpdateFunction () {
	// We copy the actual velocity into a temporary variable that we can manipulate.
	Vector3 velocity  = movement.velocity;

	// Update velocity based on input
	velocity = ApplyInputVelocityChange(velocity);

	// Apply gravity and jumping force
	velocity = ApplyGravityAndJumping (velocity);

	// Moving platform support
	Vector3 moveDistance  = Vector3.zero;
	if (MoveWithPlatform()) {
		Vector3 newGlobalPoint  = movingPlatform.activePlatform.TransformPoint(movingPlatform.activeLocalPoint);
		moveDistance = (newGlobalPoint - movingPlatform.activeGlobalPoint);
		if (moveDistance != Vector3.zero)
			controller.Move(moveDistance);

		// Support moving platform rotation as well:
        Quaternion newGlobalRotation  = movingPlatform.activePlatform.rotation * movingPlatform.activeLocalRotation;
        Quaternion rotationDiff  = newGlobalRotation * Quaternion.Inverse(movingPlatform.activeGlobalRotation);

        var yRotation = rotationDiff.eulerAngles.y;
        if (yRotation != 0) {
	        // Prevent rotation of the local up vector
	        tr.Rotate(0, yRotation, 0);
        }
	}

	// Save lastPosition for velocity calculation.
	Vector3 lastPosition  = tr.position;

	// We always want the movement to be framerate independent.  Multiplying by Time.deltaTime does this.
	Vector3 currentMovementOffset = velocity * Time.deltaTime;

	// Find out how much we need to push towards the ground to avoid loosing grouning
	// when walking down a step or over a sharp change in slope.
	float pushDownOffset  = Mathf.Max(controller.stepOffset, new Vector3(currentMovementOffset.x, 0, currentMovementOffset.z).magnitude);
	if (grounded)
		currentMovementOffset -= pushDownOffset * Vector3.up;

	// Reset variables that will be set by collision function
	movingPlatform.hitPlatform = null;
	groundNormal = Vector3.zero;

   	// Move our character!
	movement.collisionFlags = controller.Move (currentMovementOffset);

	movement.lastHitPoint = movement.hitPoint;
	lastGroundNormal = groundNormal;

	if (movingPlatform.enabled && movingPlatform.activePlatform != movingPlatform.hitPlatform) {
		if (movingPlatform.hitPlatform != null) {
			movingPlatform.activePlatform = movingPlatform.hitPlatform;
			movingPlatform.lastMatrix = movingPlatform.hitPlatform.localToWorldMatrix;
			movingPlatform.newPlatform = true;
		}
	}

	// Calculate the velocity based on the current and previous position.  
	// This means our velocity will only be the amount the character actually moved as a result of collisions.
	Vector3 oldHVelocity  = new Vector3(velocity.x, 0, velocity.z);
	movement.velocity = (tr.position - lastPosition) / Time.deltaTime;
	Vector3 newHVelocity  = new Vector3(movement.velocity.x, 0, movement.velocity.z);

	// The CharacterController can be moved in unwanted directions when colliding with things.
	// We want to prevent this from influencing the recorded velocity.
	if (oldHVelocity == Vector3.zero) {
		movement.velocity = new Vector3(0, movement.velocity.y, 0);
	}
	else {
		float projectedNewVelocity  = Vector3.Dot(newHVelocity, oldHVelocity) / oldHVelocity.sqrMagnitude;
		movement.velocity = oldHVelocity * Mathf.Clamp01(projectedNewVelocity) + movement.velocity.y * Vector3.up;
	}

	if (movement.velocity.y < velocity.y - 0.001) {
		if (movement.velocity.y < 0) {
			// Something is forcing the CharacterController down faster than it should.
			// Ignore this
			movement.velocity.y = velocity.y;
		}
		else {
			// The upwards movement of the CharacterController has been blocked.
			// This is treated like a ceiling collision - stop further jumping here.
			jumping.holdingJumpButton = false;
		}
	}

	// We were grounded but just loosed grounding
	if (grounded && !IsGroundedTest()) {
		grounded = false;

		// Apply inertia from platform
		if (movingPlatform.enabled &&
			(movingPlatform.movementTransfer == MovementTransferOnJump.InitTransfer ||
			movingPlatform.movementTransfer == MovementTransferOnJump.PermaTransfer)
		) {
			movement.frameVelocity = movingPlatform.platformVelocity;
			movement.velocity += movingPlatform.platformVelocity;
		}

		SendMessage("OnFall", SendMessageOptions.DontRequireReceiver);
		// We pushed the character down to ensure it would stay on the ground if there was any.
		// But there wasn't so now we cancel the downwards offset to make the fall smoother.
		tr.position += pushDownOffset * Vector3.up;
	}
	// We were not grounded but just landed on something
	else if (!grounded && IsGroundedTest()) {
		grounded = true;
		jumping.jumping = false;
		SubtractNewPlatformVelocity();

		SendMessage("OnLand", SendMessageOptions.DontRequireReceiver);
	}

	// Moving platforms support
	if (MoveWithPlatform()) {
		// Use the center of the lower half sphere of the capsule as reference point.
		// This works best when the character is standing on moving tilting platforms. 
		movingPlatform.activeGlobalPoint = tr.position + Vector3.up * (controller.center.y - controller.height*0.5f + controller.radius);
		movingPlatform.activeLocalPoint = movingPlatform.activePlatform.InverseTransformPoint(movingPlatform.activeGlobalPoint);

		// Support moving platform rotation as well:
        movingPlatform.activeGlobalRotation = tr.rotation;
        movingPlatform.activeLocalRotation = Quaternion.Inverse(movingPlatform.activePlatform.rotation) * movingPlatform.activeGlobalRotation; 
	}
}

void FixedUpdate () {
	if (movingPlatform.enabled) {
		if (movingPlatform.activePlatform != null) {
			if (!movingPlatform.newPlatform) {
				Vector3 lastVelocity  = movingPlatform.platformVelocity;

				movingPlatform.platformVelocity = (
					movingPlatform.activePlatform.localToWorldMatrix.MultiplyPoint3x4(movingPlatform.activeLocalPoint)
					- movingPlatform.lastMatrix.MultiplyPoint3x4(movingPlatform.activeLocalPoint)
				) / Time.deltaTime;
			}
			movingPlatform.lastMatrix = movingPlatform.activePlatform.localToWorldMatrix;
			movingPlatform.newPlatform = false;
		}
		else {
			movingPlatform.platformVelocity = Vector3.zero;	
		}
	}

	if (useFixedUpdate)
		UpdateFunction();
}

void Update () {
	if (!useFixedUpdate)
		UpdateFunction();
}

private Vector3 ApplyInputVelocityChange (Vector3 velocity) {	
	if (!canControl)
		inputMoveDirection = Vector3.zero;

	// Find desired velocity
	Vector3 desiredVelocity;
	if (grounded && TooSteep()) {
		// The direction we're sliding in
		desiredVelocity = new Vector3(groundNormal.x, 0, groundNormal.z).normalized;
		// Find the input movement direction projected onto the sliding direction
		var projectedMoveDir = Vector3.Project(inputMoveDirection, desiredVelocity);
		// Add the sliding direction, the spped control, and the sideways control vectors
		desiredVelocity = desiredVelocity + projectedMoveDir * sliding.speedControl + (inputMoveDirection - projectedMoveDir) * sliding.sidewaysControl;
		// Multiply with the sliding speed
		desiredVelocity *= sliding.slidingSpeed;
	}
	else
		desiredVelocity = GetDesiredHorizontalVelocity();

	if (movingPlatform.enabled && movingPlatform.movementTransfer == MovementTransferOnJump.PermaTransfer) {
		desiredVelocity += movement.frameVelocity;
		desiredVelocity.y = 0;
	}

	if (grounded)
		desiredVelocity = AdjustGroundVelocityToNormal(desiredVelocity, groundNormal);
	else
		velocity.y = 0;

	// Enforce max velocity change
	float maxVelocityChange  = GetMaxAcceleration(grounded) * Time.deltaTime;
	Vector3 velocityChangeVector  = (desiredVelocity - velocity);
	if (velocityChangeVector.sqrMagnitude > maxVelocityChange * maxVelocityChange) {
		velocityChangeVector = velocityChangeVector.normalized * maxVelocityChange;
	}
	// If we're in the air and don't have control, don't apply any velocity change at all.
	// If we're on the ground and don't have control we do apply it - it will correspond to friction.
	if (grounded || canControl)
		velocity += velocityChangeVector;

	if (grounded) {
		// When going uphill, the CharacterController will automatically move up by the needed amount.
		// Not moving it upwards manually prevent risk of lifting off from the ground.
		// When going downhill, DO move down manually, as gravity is not enough on steep hills.
		velocity.y = Mathf.Min(velocity.y, 0);
	}

	return velocity;
}

private Vector3 ApplyGravityAndJumping (Vector3 velocity) {

	if (!inputJump || !canControl) {
		jumping.holdingJumpButton = false;
		jumping.lastButtonDownTime = -100;
	}

	if (inputJump && jumping.lastButtonDownTime < 0 && canControl)
		jumping.lastButtonDownTime = Time.time;

	if (grounded)
		velocity.y = Mathf.Min(0, velocity.y) - movement.gravity * Time.deltaTime;
	else {
		velocity.y = movement.velocity.y - movement.gravity * Time.deltaTime;

		// When jumping up we don't apply gravity for some time when the user is holding the jump button.
		// This gives more control over jump height by pressing the button longer.
		if (jumping.jumping && jumping.holdingJumpButton) {
			// Calculate the duration that the extra jump force should have effect.
			// If we're still less than that duration after the jumping time, apply the force.
			if (Time.time < jumping.lastStartTime + jumping.extraHeight / CalculateJumpVerticalSpeed(jumping.baseHeight)) {
				// Negate the gravity we just applied, except we push in jumpDir rather than jump upwards.
				velocity += jumping.jumpDir * movement.gravity * Time.deltaTime;
			}
		}

		// Make sure we don't fall any faster than maxFallSpeed. This gives our character a terminal velocity.
		velocity.y = Mathf.Max (velocity.y, -movement.maxFallSpeed);
	}

	if (grounded) {
		// Jump only if the jump button was pressed down in the last 0.2 seconds.
		// We use this check instead of checking if it's pressed down right now
		// because players will often try to jump in the exact moment when hitting the ground after a jump
		// and if they hit the button a fraction of a second too soon and no new jump happens as a consequence,
		// it's confusing and it feels like the game is buggy.
		if (jumping.enabled && canControl && (Time.time - jumping.lastButtonDownTime < 0.2)) {
			grounded = false;
			jumping.jumping = true;
			jumping.lastStartTime = Time.time;
			jumping.lastButtonDownTime = -100;
			jumping.holdingJumpButton = true;

			// Calculate the jumping direction
			if (TooSteep())
				jumping.jumpDir = Vector3.Slerp(Vector3.up, groundNormal, jumping.steepPerpAmount);
			else
				jumping.jumpDir = Vector3.Slerp(Vector3.up, groundNormal, jumping.perpAmount);

			// Apply the jumping force to the velocity. Cancel any vertical velocity first.
			velocity.y = 0;
			velocity += jumping.jumpDir * CalculateJumpVerticalSpeed (jumping.baseHeight);

			// Apply inertia from platform
			if (movingPlatform.enabled &&
				(movingPlatform.movementTransfer == MovementTransferOnJump.InitTransfer ||
				movingPlatform.movementTransfer == MovementTransferOnJump.PermaTransfer)
			) {
				movement.frameVelocity = movingPlatform.platformVelocity;
				velocity += movingPlatform.platformVelocity;
			}

			SendMessage("OnJump", SendMessageOptions.DontRequireReceiver);
		}
		else {
			jumping.holdingJumpButton = false;
		}
	}

	return velocity;
}

void OnControllerColliderHit (ControllerColliderHit hit) {
	if (hit.normal.y > 0 && hit.normal.y > groundNormal.y && hit.moveDirection.y < 0) {
		if ((hit.point - movement.lastHitPoint).sqrMagnitude > 0.001 || lastGroundNormal == Vector3.zero)
			groundNormal = hit.normal;
		else
			groundNormal = lastGroundNormal;

		movingPlatform.hitPlatform = hit.collider.transform;
		movement.hitPoint = hit.point;
		movement.frameVelocity = Vector3.zero;
	}
}

private IEnumerator SubtractNewPlatformVelocity () {
	// When landing, subtract the velocity of the new ground from the character's velocity
	// since movement in ground is relative to the movement of the ground.
	if (movingPlatform.enabled &&
		(movingPlatform.movementTransfer == MovementTransferOnJump.InitTransfer ||
		movingPlatform.movementTransfer == MovementTransferOnJump.PermaTransfer)
	) {
		// If we landed on a new platform, we have to wait for two FixedUpdates
		// before we know the velocity of the platform under the character
		if (movingPlatform.newPlatform) {
			Transform platform  = movingPlatform.activePlatform;
			yield return new WaitForFixedUpdate();
			yield return new WaitForFixedUpdate();
			if (grounded && platform == movingPlatform.activePlatform)
				yield return 1;
		}
		movement.velocity -= movingPlatform.platformVelocity;
	}
}

private bool MoveWithPlatform () {
	return (
		movingPlatform.enabled
		&& (grounded || movingPlatform.movementTransfer == MovementTransferOnJump.PermaLocked)
		&& movingPlatform.activePlatform != null
	);
}

private Vector3 GetDesiredHorizontalVelocity () {
	// Find desired velocity
	Vector3 desiredLocalDirection  = tr.InverseTransformDirection(inputMoveDirection);
	float maxSpeed  = MaxSpeedInDirection(desiredLocalDirection);
	if (grounded) {
		// Modify max speed on slopes based on slope speed multiplier curve
		var movementSlopeAngle = Mathf.Asin(movement.velocity.normalized.y)  * Mathf.Rad2Deg;
		maxSpeed *= movement.slopeSpeedMultiplier.Evaluate(movementSlopeAngle);
	}
	return tr.TransformDirection(desiredLocalDirection * maxSpeed);
}

private Vector3 AdjustGroundVelocityToNormal (Vector3 hVelocity, Vector3 groundNormal) {
	Vector3 sideways  = Vector3.Cross(Vector3.up, hVelocity);
	return Vector3.Cross(sideways, groundNormal).normalized * hVelocity.magnitude;
}

private bool IsGroundedTest () {
	return (groundNormal.y > 0.01);
}

float GetMaxAcceleration (bool grounded) {
	// Maximum acceleration on ground and in air
	if (grounded)
		return movement.maxGroundAcceleration;
	else
		return movement.maxAirAcceleration;
}

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 * movement.gravity);
}

bool IsJumping () {
	return jumping.jumping;
}

bool IsSliding () {
	return (grounded && sliding.enabled && TooSteep());
}

bool IsTouchingCeiling () {
	return (movement.collisionFlags & CollisionFlags.CollidedAbove) != 0;
}

bool IsGrounded () {
	return grounded;
}

bool TooSteep () {
	return (groundNormal.y <= Mathf.Cos(controller.slopeLimit * Mathf.Deg2Rad));
}

Vector3 GetDirection () {
	return inputMoveDirection;
}

void  SetControllable (bool controllable) {
	canControl = controllable;
}

// Project a direction onto elliptical quater segments based on forward, sideways, and backwards speed.
// The function returns the length of the resulting vector.
float MaxSpeedInDirection (Vector3 desiredMovementDirection) {
	if (desiredMovementDirection == Vector3.zero)
		return 0;
	else {
		float zAxisEllipseMultiplier = (desiredMovementDirection.z > 0 ? movement.maxForwardSpeed : movement.maxBackwardsSpeed) / movement.maxSidewaysSpeed;
		Vector3 temp = new Vector3(desiredMovementDirection.x, 0, desiredMovementDirection.z / zAxisEllipseMultiplier).normalized;
		float length = new Vector3(temp.x, 0, temp.z * zAxisEllipseMultiplier).magnitude * movement.maxSidewaysSpeed;
		return length;
	}
}

void SetVelocity (Vector3 velocity) {
	grounded = false;
	movement.velocity = velocity;
	movement.frameVelocity = Vector3.zero;
	SendMessage("OnExternalVelocity");
}

// Require a character controller to be attached to the same game object

//@script RequireComponent (CharacterController)
//@script AddComponentMenu ("Character/Character Motor")

}

using UnityEngine;
using System.Collections;

/**
 *  @Author : www.xuanyusong.com 
 */

[RequireComponent(typeof(CharacterMotor))]
[AddComponentMenu("Character/FPS Input Controller")]

public class FPSInputController : MonoBehaviour {

private CharacterMotor motor ;

// Use this for initialization
void Awake () {
	motor = GetComponent<CharacterMotor>();
}

// Update is called once per frame
void Update () {
	// Get the input vector from kayboard or analog stick
	Vector3 directionVector = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));

	if (directionVector != Vector3.zero) {
		// Get the length of the directon vector and then normalize it
		// Dividing by the length is cheaper than normalizing when we already have the length anyway
		var directionLength = directionVector.magnitude;
		directionVector = directionVector / directionLength;

		// Make sure the length is no bigger than 1
		directionLength = Mathf.Min(1, directionLength);

		// Make the input vector more sensitive towards the extremes and less sensitive in the middle
		// This makes it easier to control slow speeds when using analog sticks
		directionLength = directionLength * directionLength;

		// Multiply the normalized direction vector by the modified length
		directionVector = directionVector * directionLength;
	}

	// Apply the direction to the CharacterMotor
	motor.inputMoveDirection = transform.rotation * directionVector;
	motor.inputJump = Input.GetButton("Jump");
}

}

using UnityEngine;
using System.Collections;

/**
 *  @Author : www.xuanyusong.com 
 */

[RequireComponent(typeof(CharacterController))]
[AddComponentMenu("Character/Platform Input Controller")]
public class PlatformInputController : MonoBehaviour {

public bool autoRotate = true;
public float  maxRotationSpeed = 360;

private CharacterMotor motor ;

// Use this for initialization
void Awake () {
	motor = GetComponent<CharacterMotor>();
}

// Update is called once per frame
void Update () {
	// Get the input vector from kayboard or analog stick
	Vector3 directionVector = new Vector3(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical"), 0);

	if (directionVector != Vector3.zero) {
		// Get the length of the directon vector and then normalize it
		// Dividing by the length is cheaper than normalizing when we already have the length anyway
		var directionLength = directionVector.magnitude;
		directionVector = directionVector / directionLength;

		// Make sure the length is no bigger than 1
		directionLength = Mathf.Min(1, directionLength);

		// Make the input vector more sensitive towards the extremes and less sensitive in the middle
		// This makes it easier to control slow speeds when using analog sticks
		directionLength = directionLength * directionLength;

		// Multiply the normalized direction vector by the modified length
		directionVector = directionVector * directionLength;
	}

	// Rotate the input vector into camera space so up is camera's up and right is camera's right
	directionVector = Camera.main.transform.rotation * directionVector;

	// Rotate input vector to be perpendicular to character's up vector
	var camToCharacterSpace = Quaternion.FromToRotation(-Camera.main.transform.forward, transform.up);
	directionVector = (camToCharacterSpace * directionVector);

	// Apply the direction to the CharacterMotor
	motor.inputMoveDirection = directionVector;
	motor.inputJump = Input.GetButton("Jump");

	// Set rotation to the move direction	
	if (autoRotate && directionVector.sqrMagnitude > 0.01) {
		Vector3 newForward  = ConstantSlerp(
			transform.forward,
			directionVector,
			maxRotationSpeed * Time.deltaTime
		);
		newForward = ProjectOntoPlane(newForward, transform.up);
		transform.rotation = Quaternion.LookRotation(newForward, transform.up);
	}
}

Vector3 ProjectOntoPlane (Vector3 v, Vector3 normal) {
	return v - Vector3.Project(v, normal);
}

Vector3 ConstantSlerp (Vector3 from, Vector3 to, float angle) {
	float value = Mathf.Min(1, angle / Vector3.Angle(from, to));
	return Vector3.Slerp(from, to, value);
}

}

using UnityEngine;
using System.Collections;

/**
 *  @Author : www.xuanyusong.com 
 */

public class ThirdPersonCamera : MonoBehaviour {

public Transform cameraTransform;
private Transform _target;

public float distance = 7.0f;

public float height = 3.0f;

public float angularSmoothLag = 0.3f;
public float angularMaxSpeed = 15.0f;

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 ThirdPersonController 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 ThirdPersonCamera script.");
		enabled = false;	
	}

	_target = transform;
	if (_target)
	{
		controller = _target.GetComponent<ThirdPersonController>();
	}

	if (controller)
	{
		CharacterController characterController  = (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)
{
	float oldHeightSmooth = heightSmoothLag;
	float oldSnapMaxSpeed = snapMaxSpeed;
	float 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
	Vector3 cameraPos = cameraTransform.position;
	Vector3 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(0.5f, 0.5f, 1f));
	Ray topRay = cameraTransform.camera.ViewportPointToRay(new Vector3(0.5f, clampHeadPositionScreenSpace, 1f));

	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;
	}

}

using UnityEngine;
using System.Collections;

/**
 *  @Author : www.xuanyusong.com 
 */

[RequireComponent(typeof(CharacterController))]

public class ThirdPersonController : MonoBehaviour {

public AnimationClip idleAnimation ;
public AnimationClip walkAnimation ;
public AnimationClip runAnimation ;
public AnimationClip jumpPoseAnimation;

public float walkMaxAnimationSpeed  = 0.75f;
public float trotMaxAnimationSpeed  = 1.0f;
public float runMaxAnimationSpeed  = 1.0f;
public float jumpAnimationSpeed  = 1.15f;
public float landAnimationSpeed  = 1.0f;

private Animation _animation;

enum CharacterState 
{
	Idle = 0,
	Walking = 1,
	Trotting = 2,
	Running = 3,
	Jumping = 4,
}

private CharacterState _characterState;

// The speed when walking
float walkSpeed = 2.0f;
// after trotAfterSeconds of walking we trot with trotSpeed
float trotSpeed = 4.0f;
// when pressing "Fire3" button (cmd) we start running
float runSpeed = 6.0f;

float inAirControlAcceleration = 3.0f;

// How high do we jump when pressing jump and letting go immediately
float jumpHeight = 0.5f;

// The gravity for the character
float gravity = 20.0f;
// The gravity in controlled descent mode
float speedSmoothing = 10.0f;
float rotateSpeed = 500.0f;
float trotAfterSeconds = 3.0f;

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;

void Awake ()
{
	moveDirection = transform.TransformDirection(Vector3.forward);

	_animation = GetComponent<Animation>();
	if(!_animation)
		Debug.Log("The character you would like to control doesn't have animations. Moving her might look weird.");

	/*
public var idleAnimation : AnimationClip;
public var walkAnimation : AnimationClip;
public var runAnimation : AnimationClip;
public var jumpPoseAnimation : AnimationClip;	
	*/
	if(!idleAnimation) {
		_animation = null;
		Debug.Log("No idle animation found. Turning off animations.");
	}
	if(!walkAnimation) {
		_animation = null;
		Debug.Log("No walk animation found. Turning off animations.");
	}
	if(!runAnimation) {
		_animation = null;
		Debug.Log("No run animation found. Turning off animations.");
	}
	if(!jumpPoseAnimation && canJump) {
		_animation = null;
		Debug.Log("No jump animation found and the character has canJump enabled. Turning off animations.");
	}

}

void UpdateSmoothedMovementDirection ()
{
	Transform cameraTransform = Camera.main.transform;
	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);

		_characterState = CharacterState.Idle;

		// Pick speed modifier
		if (Input.GetKey (KeyCode.LeftShift) | Input.GetKey (KeyCode.RightShift))
		{
			targetSpeed *= runSpeed;
			_characterState = CharacterState.Running;
		}
		else if (Time.time - trotAfterSeconds > walkTimeStart)
		{
			targetSpeed *= trotSpeed;
			_characterState = CharacterState.Trotting;
		}
		else
		{
			targetSpeed *= walkSpeed;
			_characterState = CharacterState.Walking;
		}

		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;

	_characterState = CharacterState.Jumping;
}

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 = GetComponent<CharacterController>();
	collisionFlags = controller.Move(movement);

	// ANIMATION sector
	if(_animation) {
		if(_characterState == CharacterState.Jumping) 
		{
			if(!jumpingReachedApex) {
				_animation[jumpPoseAnimation.name].speed = jumpAnimationSpeed;
				_animation[jumpPoseAnimation.name].wrapMode = WrapMode.ClampForever;
				_animation.CrossFade(jumpPoseAnimation.name);
			} else {
				_animation[jumpPoseAnimation.name].speed = -landAnimationSpeed;
				_animation[jumpPoseAnimation.name].wrapMode = WrapMode.ClampForever;
				_animation.CrossFade(jumpPoseAnimation.name);				
			}
		} 
		else 
		{
			if(controller.velocity.sqrMagnitude < 0.1f) {
				_animation.CrossFade(idleAnimation.name);
			}
			else 
			{
				if(_characterState == CharacterState.Running) {
					_animation[runAnimation.name].speed = Mathf.Clamp(controller.velocity.magnitude, 0.0f, runMaxAnimationSpeed);
					_animation.CrossFade(runAnimation.name);	
				}
				else if(_characterState == CharacterState.Trotting) {
					_animation[walkAnimation.name].speed = Mathf.Clamp(controller.velocity.magnitude, 0.0f, trotMaxAnimationSpeed);
					_animation.CrossFade(walkAnimation.name);	
				}
				else if(_characterState == CharacterState.Walking) {
					_animation[walkAnimation.name].speed = Mathf.Clamp(controller.velocity.magnitude, 0.0f, walkMaxAnimationSpeed);
					_animation.CrossFade(walkAnimation.name);	
				}

			}
		}
	}
	// ANIMATION sector

	// Set rotation to the move direction
	if (IsGrounded())
	{

		transform.rotation = Quaternion.LookRotation(moveDirection);

	}	
	else
	{
		Vector3 xzMove = movement;
		xzMove.y = 0;
		if (xzMove.sqrMagnitude > 0.001f)
		{
			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 > 0.01f) 
		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 ()
{
	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";
}

}