added little pipe legs

src/main/java/de/ellpeck/prettypipes/pipe/ConnectionType.java

@@ -7,7 +7,8 @@ import java.util.Locale;
 public enum ConnectionType implements IStringSerializable {
     CONNECTED(true),
     DISCONNECTED(false),
-    BLOCKED(false);
+    BLOCKED(false),
+    LEGS(false);
 
     private final String name;
     private final boolean isConnected;

src/main/java/de/ellpeck/prettypipes/pipe/PipeBlock.java

@@ -119,24 +119,25 @@ public class PipeBlock extends ContainerBlock {
         return shape;
     }
 
-    private BlockState createState(World world, BlockPos pos, BlockState current) {
+    private BlockState createState(World world, BlockPos pos, BlockState curr) {
         BlockState state = this.getDefaultState();
-        for (Map.Entry<Direction, EnumProperty<ConnectionType>> entry : DIRECTIONS.entrySet()) {
-            ConnectionType type = getConnectionType(world, pos, entry.getKey());
-            if (type.isConnected() && current.get(entry.getValue()) == ConnectionType.BLOCKED)
-                type = ConnectionType.BLOCKED;
-            state = state.with(entry.getValue(), type);
+        for (Direction dir : Direction.values()) {
+            EnumProperty<ConnectionType> prop = DIRECTIONS.get(dir);
+            ConnectionType type = getConnectionType(world, pos, dir, state);
+            // don't reconnect on blocked faces
+            if (!type.isConnected() || curr.get(prop) != ConnectionType.BLOCKED)
+                state = state.with(prop, type);
         }
         return state;
     }
 
-    private static ConnectionType getConnectionType(World world, BlockPos pos, Direction direction) {
+    private static ConnectionType getConnectionType(World world, BlockPos pos, Direction direction, BlockState state) {
         BlockPos offset = pos.offset(direction);
         if (!world.isBlockLoaded(offset))
             return ConnectionType.DISCONNECTED;
-        BlockState state = world.getBlockState(offset);
-        if (state.getBlock() instanceof PipeBlock) {
-            if (state.get(DIRECTIONS.get(direction.getOpposite())) == ConnectionType.BLOCKED)
+        BlockState offState = world.getBlockState(offset);
+        if (offState.getBlock() instanceof PipeBlock) {
+            if (offState.get(DIRECTIONS.get(direction.getOpposite())) == ConnectionType.BLOCKED)
                 return ConnectionType.BLOCKED;
             return ConnectionType.CONNECTED;
         }
@@ -146,9 +147,21 @@ public class PipeBlock extends ContainerBlock {
             if (handler != null)
                 return ConnectionType.CONNECTED;
         }
+        if (hasLegsTo(world, offState, offset, direction)) {
+            if (DIRECTIONS.values().stream().noneMatch(d -> state.get(d) == ConnectionType.LEGS))
+                return ConnectionType.LEGS;
+        }
         return ConnectionType.DISCONNECTED;
     }
 
+    private static boolean hasLegsTo(World world, BlockState state, BlockPos pos, Direction direction) {
+        if (state.getBlock() instanceof WallBlock || state.getBlock() instanceof FenceBlock)
+            return direction == Direction.DOWN;
+        if (state.getMaterial() == Material.ROCK || state.getMaterial() == Material.IRON)
+            return hasSolidSide(state, world, pos, direction.getOpposite());
+        return false;
+    }
+
     public static void onStateChanged(World world, BlockPos pos, BlockState newState) {
         PipeTileEntity tile = Utility.getTileEntity(PipeTileEntity.class, world, pos);
         if (tile != null && !tile.isConnectedInventory())

src/main/resources/assets/prettypipes/blockstates/pipe.json

@@ -57,6 +57,62 @@
                 "model": "prettypipes:block/pipe_end",
                 "x": 270
             }
+        },
+        {
+            "when": {
+                "north": "legs"
+            },
+            "apply": {
+                "model": "prettypipes:block/pipe_legs",
+                "x": 90,
+                "y": 180
+            }
+        },
+        {
+            "when": {
+                "south": "legs"
+            },
+            "apply": {
+                "model": "prettypipes:block/pipe_legs",
+                "x": 90
+            }
+        },
+        {
+            "when": {
+                "east": "legs"
+            },
+            "apply": {
+                "model": "prettypipes:block/pipe_legs",
+                "x": 90,
+                "y": 270
+            }
+        },
+        {
+            "when": {
+                "west": "legs"
+            },
+            "apply": {
+                "model": "prettypipes:block/pipe_legs",
+                "x": 90,
+                "y": 90
+            }
+        },
+        {
+            "when": {
+                "down": "legs"
+            },
+            "apply": {
+                "model": "prettypipes:block/pipe_legs"
+            }
+        },
+        {
+            "when": {
+                "up": "legs"
+            },
+            "apply": {
+                "model": "prettypipes:block/pipe_legs",
+                "x": 180
+            }
         }
     ]
 }

src/main/resources/assets/prettypipes/models/block/pipe_legs.json

@@ -0,0 +1,33 @@
+{
+	"credit": "Made with Blockbench",
+	"parent": "block/block",
+	"textures": {
+		"1": "prettypipes:block/pipe_legs",
+		"particle": "prettypipes:block/pipe"
+	},
+	"elements": [
+		{
+			"from": [6, 4, 6],
+			"to": [10, 5, 10],
+			"faces": {
+				"north": {"uv": [0, 7, 4, 8], "texture": "#1"},
+				"east": {"uv": [0, 7, 4, 8], "texture": "#1"},
+				"south": {"uv": [0, 7, 4, 8], "texture": "#1"},
+				"west": {"uv": [0, 7, 4, 8], "texture": "#1"},
+				"up": {"uv": [1, 1, 5, 5], "texture": "#1"},
+				"down": {"uv": [1, 1, 5, 5], "texture": "#1"}
+			}
+		},
+		{
+			"from": [7, 0, 7],
+			"to": [9, 4, 9],
+			"faces": {
+				"north": {"uv": [1, 1, 3, 5], "texture": "#1"},
+				"east": {"uv": [1, 1, 3, 5], "texture": "#1"},
+				"south": {"uv": [1, 1, 3, 5], "texture": "#1"},
+				"west": {"uv": [1, 1, 3, 5], "texture": "#1"},
+				"down": {"uv": [1, 1, 3, 3], "texture": "#1"}
+			}
+		}
+	]
+}