Fix stat lookups

src/base/storybook.cpp

@@ -8,18 +8,20 @@ Storybook::Storybook(FILE* fin) {
   pages = CyoaParse(fin);
 }
 
-void Storybook::UpdateStat(const char *key, int rel) {
+void Storybook::UpdateStat(const char *ckey, int rel) {
+  std::string key(ckey);
   auto it = stats.find(key);
   if (it == stats.end()) {
     // Key not present
-    stats[key] = 0;
+    stats[key] = rel;
   } else {
     // Key present, add the rel
     stats[key] = it->second + rel;
   }
 }
 
-int Storybook::LookupStat(const char *key) {
+int Storybook::LookupStat(const char *ckey) {
+  std::string key(ckey);
   auto it = stats.find(key);
   if (it == stats.end()){
     stats[key] = 0;
@@ -54,36 +56,48 @@ void Storybook::Advance() {
   }
 }
 
-void Storybook::Advance(int choice_key) {
+void Storybook::Advance(int choice_option) {
   // TODO throw an exception if the ending type is not choices.
-  Choice* choice = (*current->footer.choices)[choice_key];
-  if (!choice) {
+  if (!IsChoiceAvailable(choice_option)) {
     // TODO throw exception?
   }
   
-  if (auto ck = choice->statcheck) {
-    int val = LookupStat(ck->stat);
-    if (ck->rel == STATCHECK_GT && val < ck->value ||
-	ck->rel == STATCHECK_LT && val > ck->value) {
-      // TODO throw different exception?
-    }
-  }
+  Choice* choice = (*current->footer.choices)[choice_option];
   
-  if (auto cg = choice->statchange) {
+  if (statchange_t *cg = choice->statchange)
     UpdateStat(cg->stat, cg->addend);
-  }
 
   Find(choice->id);
 }
 
-void print_choice(Choice* c) {
-  printf("%d) %s", c->option, c->flavor);
-  if (c->statcheck) {
-    printf("(%s %d%c)",
-	   c->statcheck->stat,
-	   c->statcheck->value,
-	   c->statcheck->rel == STATCHECK_GT ? '+' : '-');
+bool Storybook::IsChoiceAvailable(int choice_option) {
+  Choice* choice = (*current->footer.choices)[choice_option];
+  if (!choice)
+    return false;
+
+  statcheck_t *ck = choice->statcheck;
+  if (ck) {
+    int val = LookupStat(ck->stat);
+    if (ck->rel == STATCHECK_GT && val < ck->value ||
+	ck->rel == STATCHECK_LT && val > ck->value)
+      return false;
   }
+
+  return true;
+}
+
+void Storybook::print_choice(Choice* c) {
+  if (!IsChoiceAvailable(c->option))
+    printf("\033[;31m"); // Red background
+  
+  printf("%d) %s", c->option, c->flavor);
+  if (c->statchange) {
+    printf("(%s %+d)",
+	   c->statchange->stat,
+	   c->statchange->addend);
+  }
+  if (!IsChoiceAvailable(c->option))
+    printf("\033[;0m");
   printf("\n");
 }
 

src/base/storybook.h

@@ -10,8 +10,10 @@
 class Storybook {
 private:
   std::vector<Page*> pages;
-  std::unordered_map<const char*, int> stats;
+  std::unordered_map<std::string, int> stats;
   Page *current;
+
+  void print_choice(Choice *c);
 public:
   Storybook(FILE* fin);
   
@@ -24,6 +26,7 @@ public:
   void Find(const char*);
   void Advance(); // For Goto and End cases
   void Advance(int); // For Choices
+  bool IsChoiceAvailable(int);
   bool IsEnded = false;
 
   // This will probably be moved to the cli driver