Add quit block

map.h

@@ -129,6 +129,8 @@
                                               but makes a hollow one */
 #define LCR_BLOCK_START             '*'  ///< specifies start block position
 
+#define LCR_BLOCK_QUIT              'e'  /**< special block, ends reading the 
+                                              map (useful when creating maps) */
 /*
   TODO:
   - bigger structures like a loop, sloped road etc?
@@ -436,6 +438,9 @@ uint8_t LCR_mapLoadFromStr(char (*getNextCharFunc)(void), const char *name)
       uint8_t mat = 0;
       int coords[3];
 
+      if (block == LCR_BLOCK_QUIT)
+        break;
+
       for (int i = 0; i < 3; ++i)
       {
         c = getNextCharFunc();