PlayerKinematicBody2D

using Godot;
using System;

public class Invee : KinematicBody2D {

    private AnimatedSprite player_sprite;
    private Vector2 _vel = new Vector2();

    private string _animState = "idle";
    private int _gravity = 15;
    private int _walkSpeed = 100;
    private int _jumpHeight = 400;

    public override void _Ready() {
        player_sprite = (AnimatedSprite)GetNode("AnimatedSprite");
        player_sprite.Play(_animState);
    }


    public override void _PhysicsProcess(float delta) {
        _vel.y += _gravity;
        _vel.x = 0;

        if (Input.IsKeyPressed((int) KeyList.D)) {_vel.x = _walkSpeed;}
        else if(Input.IsKeyPressed((int) KeyList.A)) {_vel.x = -_walkSpeed;}

        if (_vel.x > 0) {player_sprite.FlipH = false;}
        else if (_vel.x < 0) {player_sprite.FlipH = true;}

        //player_sprite.FlipH = (_vel.x > 0) ? false: (_vel.x < 0) ? true: false;

        if (IsOnFloor()) {
            if (Input.IsKeyPressed((int) KeyList.Space)) {
                _vel.y = -_jumpHeight;
            }
        }

        if (_vel.x == 0) {_animState = "idle";}
        else {_animState = "run";}

        if (player_sprite.Animation != _animState) {
            player_sprite.Play(_animState);
        }
        _vel = MoveAndSlide(_vel, Vector2.Up);
    }
}