ashby-games/Unity/CarsDash/Assets/Scripts/FSM/States/RoamState.cs

using UnityEngine;

public class RoamState : BaseState
{
    private bool hasCompletedRoaming = false;
    private float roamDuration = 2f;

    private Vector3 currentRoamingPoint = Vector3.zero;
    private TimerSystem roamTimerSystem = null;

    public RoamState(AICarDriver aiCarDriver, GameplayManager gameplayManager) : base(aiCarDriver, gameplayManager)
    {
        Debug.Log($"### {this} constructor");
    }

    protected override void Enter()
    {
        base.Enter();

        Debug.Log($"### {this} Enter STAGE");

        // get the target point 
        currentRoamingPoint = gameplayManager.GetRoamingPoint();
        aiCarDriver.SetTargetPosition(currentRoamingPoint);

        roamTimerSystem = new TimerSystem();
        hasCompletedRoaming = false;
        roamTimerSystem.Init(roamDuration, onComplete: () => hasCompletedRoaming = true);
    }

    protected override void Update()
    {
        base.Update();

        // keep roaming for a specific duration
        
        // use a set of target points which would be placed on the arena, 
        // get one of the target point and then start roaming towards that point.
        // if an enemy/player is found within a specific radius and in front of- 
        // -the AI then go to the next state after acquiring the target- 
        // -(next state could be ChargeState)

        // Set Target location

        if (!hasCompletedRoaming)
        {
            roamTimerSystem.UpdateTimer(Time.deltaTime);
            aiCarDriver.UpdateMovement();
        }
        else
        {
            base.Exit();
            nextState = new AcquireTargetState(aiCarDriver, gameplayManager);
        }

        Debug.Log($"### {this} Update STAGE");
    }

    protected override void Exit()
    {
        base.Exit();

        Debug.Log($"### {this} Exit STAGE");
    }
}