fix: misc bugs

fixes:
- f3 menu outside world border
- control type being affected by seemingly random oddities
- bedrock glitch in low y levels (thanks tranq)

Minecraft.World/CompressedTileStorage.cpp

@@ -604,7 +604,7 @@ int  CompressedTileStorage::get(int x, int y, int z)
 
 	int block, tile;
 	getBlockAndTile( &block, &tile, x, y, z );
-	if (blockIndices[block] == 0) return 0;
+	// if (blockIndices[block] == 0) return 0; FIX: ghost blocks in the bedrock layer (thanks tranq)
 	int indexType = blockIndices[block] & INDEX_TYPE_MASK;
 
 	if( indexType == INDEX_TYPE_0_OR_8_BIT )

Minecraft.World/StringHelpers.cpp

@@ -81,8 +81,12 @@ const char *wstringtofilename(const wstring& name)
 #else
 		if(c=='/') c='\\';
 #endif
-		assert(c<128);	// Will we have to do any conversion of non-ASCII characters in filenames?
-		buf[i] = static_cast<char>(c);
+		// assert(c<128);	// Will we have to do any conversion of non-ASCII characters in filenames?
+		if (c >= 128) {
+			printf("Non-ASCII character in filename: %lc\n", c);
+			c = '?';
+		}
+		// buf[i] = static_cast<char>(c); does nothing
 		buf.push_back(static_cast<char>(c));
 	}
 	return buf.c_str();