110 lines
2.4 KiB
C#
110 lines
2.4 KiB
C#
using System;
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using KitsuneCafe.Extension;
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using KitsuneCafe.Input;
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using KitsuneCafe.ItemSystem;
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using KitsuneCafe.SOAP;
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using R3;
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using UnityEngine;
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namespace KitsuneCafe.Entities
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{
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public class AimFeature : MonoBehaviour
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{
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[SerializeField]
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private new Camera camera;
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[SerializeField]
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private EquipmentInstance equipment;
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[SerializeField]
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private Motor motor;
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[SerializeField]
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private ControlSchemeValue controlScheme;
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[SerializeField]
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private Vector2Value lookValue;
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private void OnValidate()
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{
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if (camera == null)
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{
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camera = Camera.main;
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}
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if (equipment == null)
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{
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equipment = GetComponent<EquipmentInstance>();
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}
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if (motor == null)
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{
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motor = GetComponent<Motor>();
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}
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}
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private void Start()
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{
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var d = Disposable.CreateBuilder();
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var readied = Observable.FromEventHandler<bool>(
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e => equipment.Readied += e,
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e => equipment.Readied -= e
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)
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.Select(static eh => eh.e);
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readied
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.Subscribe(isReady =>
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{
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motor.enabled = !isReady;
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})
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.AddTo(ref d);
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readied
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.WhereTrue()
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.SelectMany(_ =>
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controlScheme.AsObservable()
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.CombineLatest(
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Observable.IntervalFrame(1),
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static (scheme, _) => scheme
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).TakeUntil(readied.WhereFalse())
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)
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.Subscribe(Aim)
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.AddTo(ref d);
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d.RegisterTo(destroyCancellationToken);
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}
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private void Aim(ControlScheme scheme)
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{
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switch (scheme)
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{
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case ControlScheme.Gamepad:
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LookInDirection(lookValue.Value);
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break;
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default:
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LookAtPosition(lookValue.Value);
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break;
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}
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}
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private void LookInDirection(Vector2 value)
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{
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transform.LookAt(transform.position + new Vector3(value.x, 0, value.y));
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}
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private void LookAtPosition(Vector2 value)
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{
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var screenPosition = camera.WorldToViewportPoint(transform.position);
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var mouseOnScreen = camera.ScreenToViewportPoint(value);
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float angle = AngleBetween(screenPosition, mouseOnScreen);
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transform.rotation = Quaternion.Euler(new Vector3(0, -angle + 90, 0));
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}
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static float AngleBetween(Vector3 a, Vector3 b)
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{
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return Mathf.Atan2(b.y - a.y, b.x - a.x) * Mathf.Rad2Deg;
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}
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}
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}
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