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using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using TMPro;
using Unity.Barracuda;
using Unity.MLAgents;
using Unity.MLAgents.Policies;
using UnityEditor;
#if UNITY_EDITOR
using UnityEditor.Recorder;
#endif
using UnityEngine;
/**
* Usage Notes:
*
* Add onnx models to the list and they will be played sequentially.
* Create a recorder and a video of the sequence will be captured automatically if "Auto Record" is selected.
* Recording only works in the Editor (not in standalone build)
* Create a TextMeshPro Text GameObject and attach it to have the number of training steps of the current model shown.
* To manually control transition between models choose a very large time, or "Pause" the system,
* then use "Force Next" to advance.
* "Reset" will start the sequence from the beginning again, use "Start" to proceed after resetting.
* "Time Scale Override" can be set, "Seconds Between Switches" will decrease proportionally if you increase this
* (i.e it represents simulated seconds between switches, not real time)
*/
public class ModelCarousel : MonoBehaviour
{
public bool m_Start = true;
public bool m_Reset = false;
public bool m_Pause = true;
public bool m_ForceNext = false;
public bool m_Loop = false;
public bool m_AutoRecord = true;
public bool m_ResetAgentOnModelChange = false;
public int m_SecondsBetweenSwitches = 10;
public float m_TimeScaleOverride = 0.0f;
public List<NNModel> m_Models = new List<NNModel>();
public bool m_ShowStepNumber = true;
public int m_StepNumberRounding = 10000;
private int m_StepsSinceLastSwitch = 0;
private int m_CurrentModelIndex = 0;
private int m_CurrentlySetModelIndex = -1;
private NNModel m_OriginalModel = null;
private int k_FixedUpdatePerSecond;
// The attached Agent
Agent m_Agent;
public TextMeshProUGUI textMeshComponent;
#if UNITY_EDITOR
private RecorderWindow GetRecorderWindow()
{
return (RecorderWindow)EditorWindow.GetWindow(typeof(RecorderWindow));
}
#endif
private void Reset()
{
m_Reset = false;
m_StepsSinceLastSwitch = 0;
m_CurrentModelIndex = 0;
m_Agent.SetModel(m_OriginalModel.name, m_OriginalModel);
textMeshComponent?.SetText("Ready to Start");
}
private void OnEnable()
{
m_Agent = GetComponent<Agent>();
m_OriginalModel = m_Agent.GetComponent<BehaviorParameters>().Model;
Reset();
k_FixedUpdatePerSecond = (int)(1.0f / Time.fixedDeltaTime);
if (m_TimeScaleOverride > 0.0f)
{
Time.timeScale = m_TimeScaleOverride;
}
}
void StartRecording()
{
#if UNITY_EDITOR
if (!m_AutoRecord)
return;
Debug.Log("Starting Recording");
RecorderWindow recorderWindow = GetRecorderWindow();
if (!recorderWindow.IsRecording())
recorderWindow.StartRecording();
#endif
}
void StopRecording()
{
#if UNITY_EDITOR
if (!m_AutoRecord)
return;
Debug.Log("Stopping Recording");
RecorderWindow recorderWindow = GetRecorderWindow();
if (recorderWindow.IsRecording())
recorderWindow.StopRecording();
#endif
}
void UpdateStepNumberText()
{
if (!m_ShowStepNumber)
return;
var result = Regex.Match(m_Models[m_CurrentModelIndex].name, @".*-(\d+)$");
string newText = "";
if (result.Success && result.Groups.Count > 0)
{
var steps = Int32.Parse(result.Groups[1].Captures[0].Value);
int round = m_StepNumberRounding;
steps += round / 2;
steps /= round;
steps *= round;
newText = $"After {steps:n0} steps";
}
textMeshComponent?.SetText(newText);
}
void SetModel()
{
if (m_CurrentModelIndex < 0 || m_CurrentModelIndex >= m_Models.Count)
return;
m_Agent.SetModel(m_Models[m_CurrentModelIndex].name, m_Models[m_CurrentModelIndex]);
m_CurrentlySetModelIndex = m_CurrentModelIndex;
UpdateStepNumberText();
if (m_ResetAgentOnModelChange)
m_Agent.EndEpisode();
}
void FixedUpdate()
{
if (m_Start)
{
m_Start = false;
m_Pause = false;
StartRecording();
}
if (m_Reset)
{
StopRecording();
Reset();
m_Pause = true;
m_Start = false;
}
if (m_Pause && !m_ForceNext)
return;
if (m_CurrentlySetModelIndex != m_CurrentModelIndex)
{
SetModel();
}
m_StepsSinceLastSwitch++;
if (m_StepsSinceLastSwitch >= m_SecondsBetweenSwitches * k_FixedUpdatePerSecond || m_ForceNext)
{
m_ForceNext = false;
m_StepsSinceLastSwitch = 0;
m_CurrentModelIndex++;
if (m_CurrentModelIndex == m_Models.Count)
{
if (m_Loop)
{
m_CurrentModelIndex = 0;
}
else
{
Application.Quit(0);
#if UNITY_EDITOR
EditorApplication.isPlaying = false;
#endif
return;
}
}
SetModel();
}
}
}
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