1 files changed, 110 insertions, 0 deletions
diff --git a/WorldlineKeepers/Assets/Scripts/Tools/TriggerSystem/Trigger.cs b/WorldlineKeepers/Assets/Scripts/Tools/TriggerSystem/Trigger.cs
new file mode 100644
index 0000000..ed69284
--- /dev/null
+++ b/WorldlineKeepers/Assets/Scripts/Tools/TriggerSystem/Trigger.cs
@@ -0,0 +1,110 @@
+using System.Collections.Generic;
+using System.Diagnostics.Tracing;
+
+namespace WK
+{
+
+    /// <summary>
+    /// 事件发生后检测条件的被动触发器
+    /// </summary>
+    public class Trigger
+    {
+        public class ConditionBase
+        {
+            public virtual bool Evaluate(params object[] args) { return false; }
+
+            public static ConditionBase Always = new ConditionAlways();
+            public static ConditionBase AlwaysNot = new ConditionAlwaysNot();
+        }
+
+        public class ConditionAlways : ConditionBase
+        {
+            public override bool Evaluate(params object[] args)
+            {
+                return true;
+            }
+        }
+
+        public class ConditionAlwaysNot : ConditionBase
+        {
+            public override bool Evaluate(params object[] args)
+            {
+                return false;
+            }
+        }
+
+        public class ConditionAnd : ConditionBase
+        {
+            private ConditionBase m_Left;
+            private ConditionBase m_Right;
+            public ConditionAnd(ConditionBase left, ConditionBase right)
+            {
+                m_Left = left;
+                m_Right = right;
+            }
+            public override bool Evaluate(params object[] args)
+            {
+                return m_Left.Evaluate(args) && m_Right.Evaluate(args);
+            }
+        }
+
+        public class ConditionOr : ConditionBase
+        {
+            private ConditionBase m_Left;
+            private ConditionBase m_Right;
+            public ConditionOr(ConditionBase left, ConditionBase right)
+            {
+                m_Left = left;
+                m_Right = right;
+            }
+            public override bool Evaluate(params object[] args)
+            {
+                return m_Left.Evaluate(args) || m_Right.Evaluate(args);
+            }
+        }
+
+        public delegate void Action(params object[] args);
+
+        // 触发事件
+        private string m_Event;
+        // 触发条件
+        private ConditionBase m_Condition;
+        // 触发操作
+        private List<Action> m_Actions = new List<Action>();
+
+        public void SetEvent(string eventType)
+        {
+            if (m_Event != string.Empty || m_Event != null)
+            {
+                GlobalEventManager.Instance.UnRegister(m_Event, OnEvent);
+            }
+            m_Event = eventType;
+            GlobalEventManager.Instance.Register(eventType, OnEvent);
+        }
+
+        public void AddAction(Action action)
+        {
+            m_Actions.Add(action);
+        }
+
+        public void SetCondition(ConditionBase condition)
+        {
+            m_Condition = condition;
+        }
+
+        public void OnEvent(params object[] args)
+        {
+            if (m_Condition == null)
+                return;
+            if (m_Condition.Evaluate())
+            {
+                foreach (Action action in m_Actions)
+                {
+                    action.Invoke(args);
+                }
+            }
+        }
+
+    }
+
+}