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//Put this script on your blue cube.
using UnityEngine;
using Unity.MLAgents;
using Unity.MLAgents.Actuators;
public class PushAgentCollab : Agent
{
private PushBlockSettings m_PushBlockSettings;
private Rigidbody m_AgentRb; //cached on initialization
protected override void Awake()
{
base.Awake();
m_PushBlockSettings = FindObjectOfType<PushBlockSettings>();
}
public override void Initialize()
{
// Cache the agent rb
m_AgentRb = GetComponent<Rigidbody>();
}
/// <summary>
/// Moves the agent according to the selected action.
/// </summary>
public void MoveAgent(ActionSegment<int> act)
{
var dirToGo = Vector3.zero;
var rotateDir = Vector3.zero;
var action = act[0];
switch (action)
{
case 1:
dirToGo = transform.forward * 1f;
break;
case 2:
dirToGo = transform.forward * -1f;
break;
case 3:
rotateDir = transform.up * 1f;
break;
case 4:
rotateDir = transform.up * -1f;
break;
case 5:
dirToGo = transform.right * -0.75f;
break;
case 6:
dirToGo = transform.right * 0.75f;
break;
}
transform.Rotate(rotateDir, Time.fixedDeltaTime * 200f);
m_AgentRb.AddForce(dirToGo * m_PushBlockSettings.agentRunSpeed,
ForceMode.VelocityChange);
}
/// <summary>
/// Called every step of the engine. Here the agent takes an action.
/// </summary>
public override void OnActionReceived(ActionBuffers actionBuffers)
{
// Move the agent using the action.
MoveAgent(actionBuffers.DiscreteActions);
}
public override void Heuristic(in ActionBuffers actionsOut)
{
var discreteActionsOut = actionsOut.DiscreteActions;
if (Input.GetKey(KeyCode.D))
{
discreteActionsOut[0] = 3;
}
else if (Input.GetKey(KeyCode.W))
{
discreteActionsOut[0] = 1;
}
else if (Input.GetKey(KeyCode.A))
{
discreteActionsOut[0] = 4;
}
else if (Input.GetKey(KeyCode.S))
{
discreteActionsOut[0] = 2;
}
}
}
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