Add Beta 1.7 and its unique biomes to enums, util

(layers.h)
- Add MC_B1_7 to MCVersion enum
- Add name mappings for B1.7 biomes to BiomeID enum

(util.c)
- Add Beta 1.7 to mc2str and str2mc functions
- Add name mappings for B1.7 biomes to biome2str function

layers.h

@@ -13,6 +13,7 @@ enum MCVersion
     // NOTE: Development effort focuses on just the newest patch for each major
     // release. Minor releases and major versions <= 1.0 are experimental.
     MC_UNDEF,
+    MC_B1_7,
     MC_B1_8,
     MC_1_0_0,  MC_1_0  = MC_1_0_0,
     MC_1_1_0,  MC_1_1  = MC_1_1_0,
@@ -163,6 +164,10 @@ enum BiomeID
     // 1.19
     deep_dark                       = 183,
     mangrove_swamp                  = 184,
+    // Alpha 1.2 - Beta 1.7
+    seasonal_forest                 = wooded_hills;
+    rainforest                      = jungle;
+    shrubland                       = windswept_savanna;
 };
 
 

util.c

@@ -48,6 +48,7 @@ const char* mc2str(int mc)
 {
     switch (mc)
     {
+    case MC_B1_7:   return "Beta 1.7"; break;
     case MC_B1_8:   return "Beta 1.8"; break;
     case MC_1_0:    return "1.0"; break;
     case MC_1_1:    return "1.1"; break;
@@ -98,6 +99,7 @@ int str2mc(const char *s)
     if (!strcmp(s, "1.1"))      return MC_1_1;
     if (!strcmp(s, "1.0"))      return MC_1_0;
     if (!strcmp(s, "Beta 1.8")) return MC_B1_8;
+    if (!strcmp(s, "Beta 1.7")) return MC_B1_7;
     return -1;
 }
 
@@ -123,6 +125,19 @@ const char *biome2str(int mc, int id)
         case wooded_badlands: return "wooded_badlands";
         }
     }
+    if (mc <= MC_B1_7)
+    {
+        // ids and colors re-used for Alpha 1.2 - Beta 1.7 biomes:
+        // wooded_hills      used for seasonal_forest
+        // windswept_savanna used for shrubland
+        // jungle            used for rainforest
+        switch(id)
+        {
+        case wooded_hills: return "seasonal_forest";
+        case windswept_savanna: return "shrubland";
+        case jungle: return "rainforest";
+        }
+    }
 
     switch (id)
     {