add a list of valid coasts to ship definition in JSON.

fix endless loop in error-line counting.

src/bind_config.c

@@ -36,9 +36,8 @@ int config_parse(const char *json)
         int line;
         char buffer[10];
         const char *xp = json, *lp, *ep = cJSON_GetErrorPtr();
-        for (line=0;xp && xp<ep;++line) {
-            lp = xp;
-            xp = strchr(xp, '\n');
+        for (line=0,lp=xp;xp && xp<ep;++line,lp=xp+1) {
+            xp = strchr(lp, '\n');
         }
         xp = (ep > json + 10) ? ep - 10 : json; 
         strncpy(buffer, xp, sizeof(buffer));

src/kernel/jsonconf.c

@@ -140,12 +140,13 @@ void json_building(cJSON *json, building_type *bt) {
 }
 
 void json_ship(cJSON *json, ship_type *st) {
-    cJSON *child;
+    cJSON *child, *iter;
     if (json->type!=cJSON_Object) {
         log_error_n("ship %s is not a json object: %d", json->string, json->type);
         return;
     }
     for (child=json->child;child;child=child->next) {
+        int i;
         switch(child->type) {
         case cJSON_Object:
             if (strcmp(child->string, "construction")==0) {
@@ -154,6 +155,19 @@ void json_ship(cJSON *json, ship_type *st) {
                 log_error_n("ship %s contains unknown attribute %s", json->string, child->string);
             }
             break;
+        case cJSON_Array:
+            st->coasts = (const terrain_type **)
+                malloc(sizeof(terrain_type *) * (1+cJSON_GetArraySize(child)));
+            for (i=0,iter=child->child;iter;iter=iter->next) {
+                if (iter->type==cJSON_String) {
+                    terrain_type *ter = get_or_create_terrain(iter->valuestring);
+                    if (ter) {
+                        st->coasts[i++] = ter;
+                    }
+                }
+            }
+            st->coasts[i] = 0;
+            break;
         case cJSON_Number:
             if (strcmp(child->string, "range")==0) {
                 st->range = child->valueint;

src/kernel/jsonconf.test.c

@@ -85,11 +85,13 @@ static void test_races(CuTest * tc)
 static void test_ships(CuTest * tc)
 {
     const char * data = "{\"ships\": { \"boat\" : { "
-        "\"construction\" : { \"maxsize\" : 20, \"reqsize\" : 10, \"minskill\" : 1 }"
+        "\"construction\" : { \"maxsize\" : 20, \"reqsize\" : 10, \"minskill\" : 1 },"
+        "\"coasts\" : [ \"plain\" ]"
         "}}}";
 
     cJSON *json = cJSON_Parse(data);
-    const struct ship_type *st;
+    const ship_type *st;
+    const terrain_type *ter;
 
     test_cleanup();
 
@@ -104,6 +106,14 @@ static void test_ships(CuTest * tc)
     CuAssertIntEquals(tc, 10, st->construction->reqsize);
     CuAssertIntEquals(tc, 20, st->construction->maxsize);
     CuAssertIntEquals(tc, 1, st->construction->minskill);
+
+    ter = get_terrain("plain");
+    CuAssertPtrNotNull(tc, ter);
+
+    CuAssertPtrNotNull(tc, st->coasts);
+    CuAssertPtrEquals(tc, (void *)ter, (void *)st->coasts[0]);
+    CuAssertPtrEquals(tc, 0, (void *)st->coasts[1]);
+
     test_cleanup();
 }
 

src/kernel/move.c

@@ -660,11 +660,13 @@ int check_ship_allowed(struct ship *sh, const region * r)
   if (fval(r->terrain, SEA_REGION)) {
     return SA_COAST;
   }
-  for (c = 0; sh->type->coasts[c] != NULL; ++c) {
-    if (sh->type->coasts[c] == r->terrain)
-      return SA_COAST;
+  if (sh->type->coasts) {
+    for (c = 0; sh->type->coasts[c] != NULL; ++c) {
+      if (sh->type->coasts[c] == r->terrain) {
+        return SA_COAST;
+      }
+    }
   }
-
   return SA_NO_COAST;
 }