LoadEnv.cs 13.7 KB
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/* Crowd Simulator Engine
** Copyright (C) 2018 - Inria Rennes - Rainbow - Julien Pettre
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License
** as published by the Free Software Foundation; either version 2
** of the License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**
** Authors: Julien Bruneau
**
** Contact: crowd_group@inria.fr
*/

using UnityEngine;
using System.Collections;
using System.IO;
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using System.Collections.Generic;
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/// <summary>
/// Main manager: Load the scene, create all the agents and manage users input
/// </summary>
public class LoadEnv : MonoBehaviour
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{

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#region attributes
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    List<GameObject> avatars;                               // List of agents
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    public GameObject cam;                                  // Scene camera
    private CamRecorder cam_Rec;                            // Control scene recording
    private CamMvt cam_Movement;                            // Control camera movement behavior
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    private MenuManager menuM;								// Control the starting menu
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    //private float rotSpeed = 5;                             

    // --------------------------
    // CAMERA MOVEMENT PARAMETERS
    const float camTranslationSpeed = 25.0f;                // Camera translation speed
    const float camShiftPower = 250.0f;                     // Shift effect on camera speed
    const float camMaxShiftPower = 1000.0f;                 // Maximun shift effect on camera speed
    const float camRotationSpeed = 0.25f;                   // Rotation speed
    Vector3 lastMouse = new Vector3(255, 255, 255);         // Last mouse position to check its movement
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    float camShiftHold = 1.0f;                              // Control the effect of shift with holding time      
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#endregion
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    /// <summary>
    /// Scene and agents initialization
    /// </summary>
    void Start()
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    {
        avatars = new List<GameObject>();
        cam_Rec = cam.GetComponent<CamRecorder>();
        cam_Movement = cam.GetComponent<CamMvt>();

        cam_Rec.enabled = false;
        cam_Movement.enabled = false;

        menuM = gameObject.GetComponent<MenuManager>();
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    }

    /// <summary>
    /// Load a scenario: create stage and spawn agents
    /// </summary>
    /// <param name="trajDir">The path to the scenario file</param>
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    public void loadScenario(string trajDir)
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    {
        // --------------------------------------------------
        // SET RANDOM SEED TO HAVE SAME RESULTS AT EVERY RUNS
        Random.InitState(75482);

        // ---------------------------------
        // INITIALIZE SCENE FROM CONFIG FILE

        // -------------
        // CAMERA CONFIG
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        cam_Rec.enabled = true;
        cam_Movement.enabled = true;
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        cam.transform.position = ConfigReader.camPosition;
        cam.transform.rotation = Quaternion.Euler(ConfigReader.camRotation);
        cam_Movement.lookAt_Id = ConfigReader.camLookAtTarget;
        cam_Movement.follow_Id = ConfigReader.camFollowTarget;
        cam_Movement.follow_LockX = !ConfigReader.camFollowOnX;
        cam_Movement.follow_LockZ = !ConfigReader.camFollowOnY;
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        // -------------
        // RECORD CONFIG
        cam_Rec.record = ConfigReader.recording;
        cam_Rec.timeToStart = ConfigReader.recordingStart;
        cam_Rec.timeToStop = ConfigReader.recordingEnd;
        cam_Rec.framerate = ConfigReader.recordingFramerate;

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        //FB don't know why there this check
        if (ConfigReader.recordingSaveDir[1] != ':')
            cam_Rec.saveDir = Directory.GetCurrentDirectory().Replace("\\", "/") + "/" + ConfigReader.recordingSaveDir;
        else
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            cam_Rec.saveDir = ConfigReader.recordingSaveDir;
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        Camera.main.GetComponent<CamRecorder>().Init();
        InitDeepRecorders();
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        // ---------------------
        // CLEAR PREVIOUS AGENTS
        foreach (GameObject a in avatars)
        {
            Destroy(a);
        }
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        avatars.Clear();

        // -------------
        // CREATE AGENTS
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        DirectoryInfo dir = new DirectoryInfo(trajDir);
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        FileInfo[] info = dir.GetFiles("*.csv");
        if (info.Length == 0)
            info = dir.GetFiles("*.txt");

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        var crowdParentObject = new GameObject("Crowd");
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        FollowTrajectory tmpFollower;
        int i = 0;
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        object testRocketMan = Resources.Load("rocketboxtxtvar/Prefabs/f001");
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        foreach (FileInfo f in info)
        {
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            // ------------------------------------------------------------
            // IF NO ROCKETMAN (PROPRIETARY ASSETS), USE PLASTICMAN INSTEAD
            GameObject character = (testRocketMan!=null) ? CreateAgent_RocketBox(i) : CreateAgent_PlasticMan(i);
            character.transform.parent = crowdParentObject.transform;
            avatars.Add(character);

            // ---------------------
            // SET NAME, TAG, AND ID
            character.name += i.ToString("D4");
            character.tag = "Player";
            character.GetComponent<GetMemberPosition>().ID = i;
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            // ----------------------------------
            // FOLLOWTRAJECTORY SCRIPT MANAGEMENT
            // Setup of the CSV filename and disable the start synchro
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            tmpFollower = character.GetComponent<FollowTrajectory>();
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            tmpFollower.SetCsvFilename(f.FullName);
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            tmpFollower._SyncLaunchWithTrajectory = true; // start the character at the csv time
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            // -------------------------------
            // Load animation controller from ressources
            string PathAnimeController = "PlasticMan/Animation/LocomotionFinal";
            character.GetComponent<Animator>().runtimeAnimatorController = Resources.Load(PathAnimeController) as RuntimeAnimatorController;
            // make sure that object on the floor (height 0)
            character.transform.position = new Vector3(character.transform.position.x, 0.0f, character.transform.position.z);

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            i++;
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        }

        cam_Movement.updateTargetedObject();
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    }

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    /// <summary>
    /// Manage which deep recorder is used and initialize it
    /// </summary>
    private void InitDeepRecorders()
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    {        
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        GameObject DeepRecorders = GameObject.FindGameObjectWithTag("DeepRecorders");
        if (ConfigReader.recordingBodyBoundingBoxes)
            DeepRecorders.GetComponent<BodyBoundingBoxRecorder>().Init(ConfigReader.recordingSaveDir);
        else
            DeepRecorders.GetComponent<BodyBoundingBoxRecorder>().enabled = false;
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        if (ConfigReader.recordingHeadBoundingBoxes)
            DeepRecorders.GetComponent<HeadBoundingBoxRecorder>().Init(ConfigReader.recordingSaveDir);
        else
            DeepRecorders.GetComponent<HeadBoundingBoxRecorder>().enabled = false;
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    }

    Color? GetColorForAgentId(int id)
    {
        if (ConfigReader.agentsColor != null && ConfigReader.agentsColor.Count > 0)
        {
            foreach (ConfigAgentColor c in ConfigReader.agentsColor)
            {
                if (id > c.firstAgent - 1 && id < c.lastAgent + 1 && (id - c.firstAgent) % c.step == 0)
                    return new Color(c.red, c.green, c.blue, 1);
            }
        }
        return null;
    }

    Material CreateMaterialWithColor(Color color)
    {
        var tmpMaterial = new Material(Shader.Find("Legacy Shaders/Diffuse"));
        tmpMaterial.color = color;
        return tmpMaterial;
    }

    string GetModelName_RocketBox(int id)
    {
        string path;
        int modelId;
        if (id % 2 == 0)
        {
            path = "Prefabs/m";
            modelId = id / 2;
        }
        else
        {
            path = "Prefabs/f";
            modelId = (id - 1) / 2;
        }
        modelId = (modelId % 20) + 1;
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        return "rocketboxtxtvar/" + path + modelId.ToString("D3");
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    }

    GameObject CreateAgent_RocketBox(int id)
    {
        // -------------------
        // LOAD AGENT IN UNITY
        GameObject gameObject = Instantiate(Resources.Load<GameObject>(GetModelName_RocketBox(id)));
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        // -------------------
        // SET BOUNDING BOXES ITEM
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        gameObject.AddComponent<GetMemberPositionRocketBox>();
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        gameObject.AddComponent<FollowTrajectory>();
        GameObject headBoundingBox = Instantiate(Resources.Load<GameObject>("HeadBoundingBoxes/Hbb_RocketBox"));
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        Transform Head = gameObject.transform.Find("Bip01/Bip01 Pelvis/Bip01 Spine/Bip01 Spine1/Bip01 Spine2/Bip01 Neck/Bip01 Head");
        headBoundingBox.transform.parent = Head;
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        // ---------------------------------------------
        // SET AGENT'S COLOR WHEN SPECIFY IN CONFIG FILE
        var tmpColor = GetColorForAgentId(id);
        if (tmpColor.HasValue)
        {
            var tmpMaterial = CreateMaterialWithColor(tmpColor.Value);
            Material[] mats = new Material[] { tmpMaterial, tmpMaterial, tmpMaterial };

            SkinnedMeshRenderer[] rendererList = gameObject.GetComponentsInChildren<SkinnedMeshRenderer>();
            foreach (SkinnedMeshRenderer renderer in rendererList)
                renderer.materials = mats;
        }

        return gameObject;
    }

    GameObject CreateAgent_PlasticMan(int id)
    {
        // -------------------
        // LOAD AGENT IN UNITY
        GameObject gameObject = Instantiate(Resources.Load<GameObject>("PlasticMan/plasticman"));
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        // -------------------
        // SET BOUNDING BOXES ITEM
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        gameObject.AddComponent<GetMemberPositionPlasticMan>();
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        GameObject headBoundingBox = Instantiate(Resources.Load<GameObject>("HeadBoundingBoxes/Hbb_PlasticMan"));
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        Transform Head = gameObject.transform.Find("Plasticman:Reference/Plasticman:Hips/Plasticman:Spine/Plasticman:Spine1/Plasticman:Spine2/Plasticman:Spine3/Plasticman:Neck/Plasticman:Head");
        headBoundingBox.transform.parent = Head;
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        // -----------------
        // SET AGENT'S COLOR
        var tmpColor = GetColorForAgentId(id);
        if (!tmpColor.HasValue)
            tmpColor = new Color(Random.value, Random.value, Random.value, 1);

        var tmpRenderer = gameObject.GetComponentInChildren<SkinnedMeshRenderer>();
        tmpRenderer.material = CreateMaterialWithColor(tmpColor.Value);

        return gameObject;
    }

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    /// <summary>
    /// Update camera state
    /// </summary>
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    private void Update()
    {
        ConfigReader.camPosition = cam.transform.position;
        ConfigReader.camRotation = cam.transform.rotation.eulerAngles;
    }

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    /// <summary>
    /// Manage users Input
    /// </summary>
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    void LateUpdate()
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    {
        // -------------------
        // ESCAPE => EXIT APPS
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        if (Input.GetKeyDown(KeyCode.Escape) == true)
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        {
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            menuM.toogleMenu();
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        }

        // -------------------------------
        // MOUSE + RCLICK => ROTATE CAMERA
        if (Input.GetMouseButton(1))
        {
            lastMouse = Input.mousePosition - lastMouse;
            lastMouse = new Vector3(-lastMouse.y * camRotationSpeed, lastMouse.x * camRotationSpeed, 0);
            lastMouse = new Vector3(cam.transform.eulerAngles.x + lastMouse.x, cam.transform.eulerAngles.y + lastMouse.y, 0);

            // Block all the way up or down to prevent glitches
            if (lastMouse.x > 180 && lastMouse.x < 270)
                lastMouse.x = 270;
            else if (lastMouse.x > 90 && lastMouse.x < 180)
                lastMouse.x = 90;

            cam.transform.eulerAngles = lastMouse;
        }
        lastMouse = Input.mousePosition;

        // -----------------------------------------
        // ARROWS, SHIFT, CTRL => CAMERA TRANSLATION
        Vector3 p = new Vector3();
        if (Input.GetKey(KeyCode.UpArrow))
        {
            p += new Vector3(0, 0, 1);
        }
        if (Input.GetKey(KeyCode.DownArrow))
        {
            p += new Vector3(0, 0, -1);
        }
        if (Input.GetKey(KeyCode.LeftArrow))
        {
            p += new Vector3(-1, 0, 0);
        }
        if (Input.GetKey(KeyCode.RightArrow))
        {
            p += new Vector3(1, 0, 0);
        }
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        if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift))
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        {
            camShiftHold += Time.fixedUnscaledDeltaTime;
            p = p * Mathf.Max(camShiftHold * camShiftPower, camMaxShiftPower);
        }
        else
        {
            camShiftHold = Mathf.Clamp(camShiftHold * 0.5f, 1f, 1000f);
            p = p * camTranslationSpeed;
        }

        p = p * Time.fixedUnscaledDeltaTime;
        Vector3 newPosition = cam.transform.position;
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        if (Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl))
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        { //If player wants to move on X and Z axis only
            cam.transform.Translate(p);
            newPosition.x = cam.transform.position.x;
            newPosition.z = cam.transform.position.z;
            cam.transform.position = newPosition;
        }
        else
        {
            cam.transform.Translate(p);
        }

        // --------------------------
        // F5 => SAVE CAMERA POSITION
        if (Input.GetKeyDown(KeyCode.F5))
        {
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            menuM.saveConfig();
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        }

        // ----------------------
        // SPACE => PAUSE UNPAUSE
        if (Input.GetKeyDown(KeyCode.Space))
        {
            if (Time.timeScale == 0)
                Time.timeScale = 1;
            else
                Time.timeScale = 0;
        }
    }
}