封装了一下函数，更好懂了

vscode/FSM_OOP/baseFSM/FSM.c

@@ -73,37 +73,35 @@ void stepBaseFSM(FSM *pFSM)
     
     if(nextState && curState != nextState){  // 状态切换
         // 退子状态机
-        if(childFSMTable[curState] != NULL){
+        if(hasChildFSM(pFSM, curState)){
-            FSM *cFSM = childFSMTable[curState];
+            FSM *cFSM = getChildFSM(pFSM, curState);
-            int cFSMCurState = cFSM->privateVars->curState;
+            exitFSM(cFSM);
-            cFSM->privateVars->fcns.exitActionTable[cFSMCurState](cFSM->data);
-            resetBaseFSM(cFSM);
         }
-        // 退父状态机
+        // 退状态机
-        fcns->exitActionTable[curState](data);
+        doExit(pFSM);
 
         // 转移函数
-        fcns->transitionTable[index](data);   // 有特定的状态转移函数
+        doTransition(pFSM, index);       // 有特定的状态转移函数
-        fcns->transitionGeneralAction(data);    // 通用状态转移函数
+        doGeneralTransition(pFSM);      // 通用状态转移函数 
 
-        // 进父状态机
+        // 进状态机
-        fcns->enterActionTable[nextState](data);
+        doEnter(pFSM, nextState);
 
         // 进子状态机，必须从默认状态开始
-        if(childFSMTable[nextState] != NULL){
+        if(hasChildFSM(pFSM, nextState)){
-            FSM *cFSM = childFSMTable[nextState];
+            FSM *cFSM = getChildFSM(pFSM, nextState);
             Step(cFSM);
         }
-
+        setCurState(pFSM, nextState);
-        pFSM->privateVars->curState = nextState;
     }
     else    // 状态机没动
     {
-        if(childFSMTable[curState] == NULL){
+        if(!hasChildFSM(pFSM, curState)){
-            fcns->duringActionTable[curState](data);
+            doDuring(pFSM);
         }
         else{
-            Step(childFSMTable[curState]);
+            FSM *cFSM = getChildFSM(pFSM, curState);
+            Step(cFSM);
         }
     }
 }
@@ -114,12 +112,6 @@ void stepBaseFSM(FSM *pFSM)
 /* -------------------------------------------------------------------------- */
 /*                                public 函数                                 */
 /* -------------------------------------------------------------------------- */
-void resetBaseFSM(FSM *pFSM)
-{
-
-    pFSM->privateVars->curState = 0;
-}
-
 void _stepFSM(FSM *pFSM){
     pFSM->publicFcns.step(pFSM);
 }
@@ -138,6 +130,8 @@ void registerChildFSM(FSM *parent, FSM *child, int state){
     parent->privateVars->childFSMTable[state] = child;
 }
 
+
+
 const void *_getData(FSM* pFSM){
     return (const void *)pFSM->data;
 }
@@ -213,7 +207,6 @@ FSM*  newBaseFSM(int numState){
     pFSM->pureVtbl = pureVtbl;
 
     pFSM->publicFcns.step = stepBaseFSM;
-    pFSM->publicFcns.reset = resetBaseFSM;
 
     return pFSM;
 }

vscode/FSM_OOP/baseFSM/FSM_private.h

@@ -60,7 +60,9 @@ typedef struct FSMPrivateVars
 
 }FSMPrivateVars;
 
-
+/**
+ * @brief 纯纯空函数
+ */
 static void empty_func(){
 }
 
@@ -114,9 +116,61 @@ FSMPrivateVars* newFMSPrivateVars(int numState){
 }
 
 
-static int hasChildFSM(FSM *pFSM, int state){
+
+/* -------------------------------------------------------------------------- */
+/*                         以下开始是FSM私有函数                               */
+/* -------------------------------------------------------------------------- */
+static inline FSM * getChildFSM(FSM *pFSM, int state){
+    return pFSM->privateVars->childFSMTable[state];
+}
+
+static inline int hasChildFSM(FSM *pFSM, int state){
     return (pFSM->privateVars->childFSMTable[state] != NULL);
 }
 
+static inline void setCurState(FSM *pFSM, int state){
+    pFSM->privateVars->curState = state;
+}
+
+
+
+
+static inline int getCurState(FSM *pFSM){
+    return pFSM->privateVars->curState;
+}
+
+static inline void doExit(FSM *pFSM){
+    pFSM->privateVars->fcns.exitActionTable[getCurState(pFSM)](pFSM->data);
+}
+
+static inline void doEnter(FSM *pFSM, int state){
+    pFSM->privateVars->fcns.enterActionTable[state](pFSM->data);
+}
+
+static inline void doDuring(FSM *pFSM){
+    pFSM->privateVars->fcns.duringActionTable[getCurState(pFSM)](pFSM->data);
+}
+
+
+static inline void doGeneralTransition(FSM *pFSM){
+    pFSM->privateVars->fcns.transitionGeneralAction(pFSM->data);
+}
+
+static inline void doTransition(FSM *pFSM, int index){
+    pFSM->privateVars->fcns.transitionTable[index](pFSM->data);
+}
+
+
+static void exitFSM(FSM *pFSM)
+{
+    doExit(pFSM);
+
+    int curState = getCurState(pFSM);
+    if(hasChildFSM(pFSM, curState)){
+        exitFSM(getChildFSM(pFSM, curState));
+    }
+    setCurState(pFSM, 0);
+}
+
 
 #endif

vscode/FSM_OOP/baseFSM/FSM_protected.h

@@ -134,7 +134,7 @@ typedef struct FSM
 void stepBaseFSM(FSM *pFSM);
 void constructFSM(FSM* pFSM);
 FSM*  newBaseFSM(int numState);
-void resetBaseFSM(FSM *pFSM);
+void resetFSM2Idle(FSM *pFSM);
 
 
 /* -------------------------------------------------------------------------- */