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增加受击泛红效果

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This commit is contained in:
ksh999000
2026-07-04 16:07:08 +08:00
parent d63f0c3fa7
commit fc585fa67e
6 changed files with 253 additions and 2 deletions
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unity/Assets/2.5D Engine/Scripts/HealthSystem.cs
+8
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@@ -1,10 +1,14 @@
using UnityEngine;
using System;
using GameFramework;
namespace IndianOceanAssets.Engine2_5D
{
// Handles health, damage, and death for entities
public class HealthSystem : MonoBehaviour
{
/// <summary>玩家受伤时触发（用于受击特效等）</summary>
public static Action onPlayerDamaged;
[Range(1, 100)]
[SerializeField]
private int maxHealth = 5; // Maximum health
@@ -31,6 +35,10 @@ namespace IndianOceanAssets.Engine2_5D
health -= damageAmount;
// 玩家受伤时触发事件（用于受击泛红特效）
if (isPlayer && onPlayerDamaged != null)
onPlayerDamaged.Invoke();
// If dead
if (health <= 0)
{
unity/Assets/Scenes/Gameplay.unity
+87
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@@ -22068,6 +22120,9 @@ MonoBehaviour:
m_Name:
m_EditorClassIdentifier:
gameState: 0
lightExpandDuration: 1.5
lightExpandTargetRadius: 20
fadeOutDuration: 1
--- !u!4 &1385715428
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unity/Assets/UI/DamageFlashOverlay.cs
+138
View File
@@ -0,0 +1,138 @@
using UnityEngine;
using UnityEngine.UI;
using IndianOceanAssets.Engine2_5D;
namespace GameFramework
{
/// <summary>
/// 受击泛红特效 —— 玩家受伤时屏幕四周闪烁红色暗角。
///
/// 挂载到场景中任意物体上（或由 GameHUD 自动创建）。
/// 运行时自动创建全屏暗角遮罩，监听 HealthSystem.onPlayerDamaged 事件。
/// </summary>
public class DamageFlashOverlay : MonoBehaviour
{
[Header("特效参数")]
[Tooltip("受击时暗角最大透明度（0~1）")]
[SerializeField] private float flashAlpha = 0.8f;
[Tooltip("闪烁淡出时间（秒）")]
[SerializeField] private float fadeDuration = 0.4f;
[Tooltip("暗角内圈半径（0~1，0=全屏幕红色，1=只有最边缘）")]
[SerializeField] private float innerRadius = 0.8f;
private Canvas _canvas;
private Image _overlayImage;
private float _currentAlpha;
private bool _isFlashing;
private void Start()
{
CreateOverlay();
HealthSystem.onPlayerDamaged += OnPlayerDamaged;
}
private void OnDestroy()
{
HealthSystem.onPlayerDamaged -= OnPlayerDamaged;
}
private void Update()
{
if (!_isFlashing) return;
// 淡出
_currentAlpha -= Time.unscaledDeltaTime / fadeDuration;
if (_currentAlpha <= 0f)
{
_currentAlpha = 0f;
_isFlashing = false;
_overlayImage.gameObject.SetActive(false);
}
_overlayImage.color = new Color(1f, 0f, 0f, _currentAlpha);
}
private void OnPlayerDamaged()
{
// 重置闪烁
_currentAlpha = flashAlpha;
_isFlashing = true;
_overlayImage.gameObject.SetActive(true);
_overlayImage.color = new Color(1f, 0f, 0f, _currentAlpha);
}
/// <summary>
/// 创建全屏暗角遮罩（运行时生成暗角纹理）。
/// </summary>
private void CreateOverlay()
{
// 创建 Canvas
var canvasObj = new GameObject("DamageFlashCanvas");
_canvas = canvasObj.AddComponent<Canvas>();
_canvas.renderMode = RenderMode.ScreenSpaceOverlay;
_canvas.sortingOrder = 10000; // 在 HUD 之上
canvasObj.AddComponent<CanvasScaler>();
// 创建全屏 Image
var imageObj = new GameObject("DamageFlashImage");
imageObj.transform.SetParent(canvasObj.transform, false);
var rect = imageObj.AddComponent<RectTransform>();
rect.anchorMin = Vector2.zero;
rect.anchorMax = Vector2.one;
rect.sizeDelta = Vector2.zero;
_overlayImage = imageObj.AddComponent<Image>();
_overlayImage.sprite = CreateVignetteSprite();
_overlayImage.type = Image.Type.Simple;
_overlayImage.raycastTarget = false; // 不阻挡点击
imageObj.SetActive(false); // 初始隐藏
}
/// <summary>
/// 运行时生成暗角纹理（中心透明，边缘红色）。
/// </summary>
private Sprite CreateVignetteSprite()
{
int size = 256;
var texture = new Texture2D(size, size, TextureFormat.RGBA32, false);
var pixels = new Color[size * size];
float center = size * 0.5f;
float maxDist = center; // 最大距离（角到中心）
for (int y = 0; y < size; y++)
{
for (int x = 0; x < size; x++)
{
// 计算到中心的归一化距离
float dx = (x - center) / center;
float dy = (y - center) / center;
float dist = Mathf.Sqrt(dx * dx + dy * dy);
// 暗角效果：内圈透明，外圈不透明
float alpha;
if (dist <= innerRadius)
{
alpha = 0f;
}
else
{
// 从内圈到边缘平滑过渡
float t = (dist - innerRadius) / (1.414f - innerRadius); // 1.414 = sqrt(2)
alpha = Mathf.SmoothStep(0f, 1f, t);
}
pixels[y * size + x] = new Color(1f, 0f, 0f, alpha);
}
}
texture.SetPixels(pixels);
texture.Apply();
texture.filterMode = FilterMode.Bilinear;
return Sprite.Create(texture, new Rect(0, 0, size, size), Vector2.one * 0.5f);
}
}
}
unity/Assets/UI/DamageFlashOverlay.cs.meta
+11
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@@ -0,0 +1,11 @@
fileFormatVersion: 2
guid: DH8Z4XurAC+mXJCLMO3KhftlwfsTEfnqj4q0hJGAb8EiGnEHR1zldgM=
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unity/Assets/UI/GameHUD.cs
+7
View File
@@ -57,6 +57,13 @@ namespace GameFramework
UpdateSoulCount(ScoreManager.Instance != null ? ScoreManager.Instance.CurrentScore : 0);
UpdateLifeIcons();
// 自动创建受击泛红特效（如果场景中没有）
if (FindObjectOfType<DamageFlashOverlay>() == null)
{
var overlayObj = new GameObject("DamageFlashOverlay");
overlayObj.AddComponent<DamageFlashOverlay>();
}
}
void OnDestroy()