using UnityEngine;
using System.Collections;

public class StairDismount : MonoBehaviour {
   //Declare a member variables for distributing the impacts over several frames
   float impactEndTime=0;
   Rigidbody impactTarget=null;
   Vector3 impact;
   //Current score
   public int score;
   //A prefab for displaying points (floats up, fades out, instantiated by the RagdollPartScript)
   public GameObject scoreTextTemplate;
   // Use this for initialization
   void Start () {
     
    //Get all the rigid bodies that belong to the ragdoll
    Rigidbody[] rigidBodies=GetComponentsInChildren<Rigidbody>();
      
    //Add the RagdollPartScript to all the gameobjects that also have the a rigid body
    foreach (Rigidbody body in rigidBodies)
    {
     RagdollPartScript rps=body.gameObject.AddComponent<RagdollPartScript>();
       
     //Set the scripts mainScript reference so that it can access
     //the score and scoreTextTemplate member variables above
     rps.mainScript=this;
    }
   }
     
   // Update is called once per frame
   void Update () {
    //if left mouse button clicked
    if (Input.GetMouseButtonDown(0))
    {
     //Get a ray going from the camera through the mouse cursor
     Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
       
     //check if the ray hits a physic collider
     RaycastHit hit; //a local variable that will receive the hit info from the Raycast call below
     if (Physics.Raycast(ray,out hit))
     {
      //check if the raycast target has a rigid body (belongs to the ragdoll)
      if (hit.rigidbody!=null)
      {
       //find the RagdollHelper component and activate ragdolling
       RagdollHelper helper=GetComponent<RagdollHelper>();
       helper.ragdolled=true;
         
       //set the impact target to whatever the ray hit
       impactTarget = hit.rigidbody;
         
       //impact direction also according to the ray
       impact = ray.direction * 2.0f;
         
       //the impact will be reapplied for the next 250ms
       //to make the connected objects follow even though the simulated body joints
       //might stretch
       impactEndTime=Time.time+0.25f;
      }
     }
    }
      
    //Pressing space makes the character get up, assuming that the character root has
    //a RagdollHelper script
    if (Input.GetKeyDown(KeyCode.Space))
    {
     RagdollHelper helper=GetComponent<RagdollHelper>();
     helper.ragdolled=false;
    }   
      
    //Check if we need to apply an impact
    if (Time.time<impactEndTime)
    {
     impactTarget.AddForce(impact,ForceMode.VelocityChange);
    }
   }
}