using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerGroundedState : PlayerBaseState
{
    public PlayerGroundedState(PlayerStateMachine currentContext,
        PlayerStateFactory playerStateFactory)
    : base(currentContext, playerStateFactory) {
        IsRootState = true;
    }

    public void HandleGravity() {
        Ctx.VerticalVelocity = -9.5f;
    }

    public override void EnterState() {
        //gravity
        InitializeSubState();
        HandleGravity();
    }

    public override void UpdateState() {
        CheckSwitchStates();
    }

    public override void ExitState() {
        
    }

    public override void CheckSwitchStates()
    {
        //if player is grounded aloow jump
        if (Ctx.InputJump)
        {
            SwitchState(Factory.Jump());
        }
        //if player is grounede allow gravity
        else if (!Ctx.PlayerController.isGrounded)
        {
            SwitchState(Factory.Fall());
        }
    }

    public override void InitializeSubState() {
        if (Ctx.InputMoveX == 0 && Ctx.InputMoveY == 0 && !Ctx.InputRun)
        {
            SetSubState(Factory.Idle());
        }
        else if (Ctx.InputMoveX != 0 && Ctx.InputMoveY != 0 && !Ctx.InputRun)
        {
            SetSubState(Factory.Walk());
        }
        else {
            SetSubState(Factory.Run());
        }
    }
}