Region system PR review changes

Fixes errors or oversights with the region system for the PR review

desktop_version/src/Game.cpp

@@ -229,16 +229,6 @@ void Game::init(void)
 
     customcol=0;
 
-    map.currentregion = 0;
-    for (size_t i = 0; i < SDL_arraysize(map.region); i++)
-    {
-        map.region[i].isvalid = false;
-        map.region[i].rx = 0;
-        map.region[i].ry = 0;
-        map.region[i].rx2 = 0;
-        map.region[i].ry2 = 0;
-    }
-
     SDL_memset(crewstats, false, sizeof(crewstats));
     SDL_memset(ndmresultcrewstats, false, sizeof(ndmresultcrewstats));
     SDL_memset(besttimes, -1, sizeof(besttimes));

desktop_version/src/GraphicsResources.cpp

@@ -447,7 +447,7 @@ void GraphicsResources::init(void)
 
     EnumHandle handle = {};
     const char* item;
-    char full_item[73];
+    char full_item[64];
     while ((item = FILESYSTEM_enumerateAssets("graphics", &handle)) != NULL)
     {
         if (SDL_strncmp(item, "region", 6) != 0)
@@ -456,6 +456,11 @@ void GraphicsResources::init(void)
         }
         char* end;
         int i = SDL_strtol(&item[6], &end, 10);
+        // make sure the region id is actually in bounds!
+        if (i < 1 || i > 400)
+        {
+            continue;
+        }
         if (item == end || SDL_strcmp(end, ".png") != 0)
         {
             continue;

desktop_version/src/Map.cpp

@@ -87,6 +87,9 @@ mapclass::mapclass(void)
     roomtexton = false;
 
     nexttowercolour_set = false;
+
+    currentregion = 0;
+    SDL_zeroa(region);
 }
 
 static char roomname_static[SCREEN_WIDTH_CHARS];
@@ -2301,21 +2304,31 @@ MapRenderData mapclass::get_render_data(void)
 
 void mapclass::setregion(int id, int rx, int ry, int rx2, int ry2)
 {
-    if (INBOUNDS_ARR(id, region))
+    if (INBOUNDS_ARR(id, region) && id > 0)
     {
         region[id].isvalid = true;
         region[id].rx = SDL_clamp(rx, 0, cl.mapwidth - 1);
         region[id].ry = SDL_clamp(ry, 0, cl.mapheight - 1);
         region[id].rx2 = SDL_clamp(rx2, 0, cl.mapwidth - 1);
         region[id].ry2 = SDL_clamp(ry2, 0, cl.mapheight - 1);
+
+        if (id == currentregion)
+        {
+            cl.generatecustomminimap();
+        }
     }
 }
 
 void mapclass::removeregion(int id)
 {
-    if (INBOUNDS_ARR(id, region))
+    if (INBOUNDS_ARR(id, region) && id > 0)
     {
         SDL_zero(region[id]);
+
+        if (id == currentregion)
+        {
+            cl.generatecustomminimap();
+        }
     }
 }
 
@@ -2326,4 +2339,4 @@ void mapclass::changeregion(int id)
         currentregion = id;
         cl.generatecustomminimap();
     }
-}
+}

desktop_version/src/Map.h

@@ -213,7 +213,7 @@ public:
     int cursorstate, cursordelay;
 
     //Region system
-    struct regionstruct
+    struct Region
     {
         bool isvalid;
         int rx;
@@ -221,7 +221,7 @@ public:
         int rx2;
         int ry2;
     };
-    struct regionstruct region[401];
+    struct Region region[401];
     void setregion(int id, int rx, int ry, int rx2, int ry2);
     void removeregion(int id);
     void changeregion(int id);

desktop_version/src/Script.cpp

@@ -3275,6 +3275,8 @@ void scriptclass::hardreset(void)
     SDL_memset(map.roomdeaths, 0, sizeof(map.roomdeaths));
     SDL_memset(map.roomdeathsfinal, 0, sizeof(map.roomdeathsfinal));
     map.resetmap();
+    map.currentregion = 0;
+    SDL_zeroa(map.region);
     //entityclass
     obj.nearelephant = false;
     obj.upsetmode = false;