144 lines
3.9 KiB
C#
144 lines
3.9 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using BITKit;
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using BITKit.Entities;
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using BITKit.Entities.Player;
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using BITKit.UX;
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using UnityEngine;
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using UnityEngine.UIElements;
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namespace BITFALL.UX
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{
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public class UXDamageIndicator : MonoBehaviour
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{
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[SerializeReference, SubclassSelector] private IPlayerService playerService;
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[SerializeField] private UIDocument document;
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[SerializeField] private VisualTreeAsset indicatorAsset;
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[UXBindPath("indicator-container")]
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private VisualElement indicatorContainer;
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[Inject] private IHealth _health;
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[Inject] private IEntityMovement _movement;
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private List<(VisualElement visualElement, Vector3 position, float exitTime)> _indicators = new();
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private void Start()
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{
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playerService.OnPlayerInitialized += OnPlayerInitialized;
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playerService.OnPlayerDisposed+=OnPlayerDisposed;
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destroyCancellationToken.Register(() =>
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{
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playerService.OnPlayerInitialized -= OnPlayerInitialized;
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playerService.OnPlayerDisposed-=OnPlayerDisposed;
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});
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BITKit.UX.UXUtils.Inject(this);
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indicatorContainer.Clear();
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}
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private void OnPlayerDisposed(Entity obj)
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{
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foreach (var x in _indicators)
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{
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x.visualElement.RemoveFromHierarchy();
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}
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_indicators.Clear();
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}
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private void OnPlayerInitialized(Entity obj)
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{
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obj.Inject(this);
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_health.OnDamageRelease += OnDamageRelease;
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}
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private void Update()
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{
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foreach (var x in _indicators)
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{
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//
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// var direction =Vector3.ProjectOnPlane(x.position - _movement.Position,Vector3.up).normalized;
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//
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// direction = Quaternion.LookRotation(direction) * _movement.Rotation * Vector3.forward;
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//
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// var rotation = Quaternion.LookRotation(direction);
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// var angle =(rotation.eulerAngles.y+180)%360;
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//
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// x.visualElement.transform.rotation = Quaternion.Euler(0, 0, -angle);
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//Calculate direction
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Vector3 rhs = x.position - _movement.Position;
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Vector3 offset = x.visualElement.transform.rotation.eulerAngles;
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var forward = _movement.Forward;
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//Convert angle into screen space
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rhs.y = 0f;
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rhs.Normalize();
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//Get the angle between two positions.
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float angle = Vector3.Angle(rhs, forward);
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//Calculate the perpendicular of both vectors
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//More information about this calculation: https://unity3d.com/es/learn/tutorials/modules/beginner/scripting/vector-maths-dot-cross-products?playlist=17117
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Vector3 Perpendicular = Vector3.Cross(forward, rhs);
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//Calculate magnitude between two vectors
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float dot = -Vector3.Dot(Perpendicular, Vector3.up);
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//get the horizontal angle in direction of target / sender.
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angle = AngleCircumference(dot, angle);
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//Apply the horizontal rotation to the indicator.
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offset.z = -angle;
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x.visualElement.transform.rotation = Quaternion.Euler(offset);
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if (Time.time > x.exitTime)
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x.visualElement.RemoveFromHierarchy();
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float AngleCircumference(float dot, float angle)
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{
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float ac = angle;
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float circumference = 360f;
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ac = angle - 10;
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if (dot < 0)
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{
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ac = circumference - angle;
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}
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return ac;
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}
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}
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_indicators.RemoveAll(x => x.exitTime < Time.time);
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}
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private void OnDamageRelease(DamageMessage arg1)
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{
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if (arg1.Position.IsDefault()) return;
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var indicator =indicatorContainer.Create<VisualElement>(()=>indicatorAsset.CloneTree()[0]);
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if (arg1.Damage is 0)
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{
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indicator[0].style.unityBackgroundImageTintColor = Color.black;
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}
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_indicators.Add((indicator, (Vector3)arg1.Position, Time.time + 1));
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}
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// private async void KillIndicator(VisualElement indicator)
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// {
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// try
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// {
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// await Task.Delay(500, destroyCancellationToken);
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// indicator.RemoveFromHierarchy();
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// }
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// catch (Exception e)
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// {
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// Console.WriteLine(e);
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// throw;
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// }
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// }
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}
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}
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