Ton of Material extensions handling the meta-data of blocks.

By: sunkid <sunkid@iminurnetz.com>

paper-api/src/main/java/org/bukkit/material/Rails.java

@@ -0,0 +1,87 @@
+package org.bukkit.material;
+
+import org.bukkit.Material;
+import org.bukkit.block.BlockFace;
+
+/**
+ * Represents minecart rails.
+ * 
+ * @author sunkid
+ */
+public class Rails extends MaterialData {
+
+    public Rails() {
+        super(Material.RAILS);
+    }
+    
+    public Rails(final int type) {
+        super(type);
+    }
+
+    public Rails(final Material type) {
+        super(type);
+    }
+
+    public Rails(final int type, final byte data) {
+        super(type, data);
+    }
+
+    public Rails(final Material type, final byte data) {
+        super(type, data);
+    }
+
+    /**
+     * @return the whether this track is set on a slope
+     */
+    public boolean isOnSlope() {
+        byte d = getData();
+        return (d == 0x2 || d == 0x3 || d == 0x4 || d == 0x5);
+    }
+
+    /**
+     * @return the whether this track is set as a curve
+     */
+    public boolean isCurve() {
+        byte d = getData();
+        return (d == 0x6 || d == 0x7 || d == 0x8 || d == 0x9);
+    }
+
+    /**
+     * @return the direction these tracks are set <br>
+     *         Note that tracks are bidirectional and that the direction
+     *         returned is the ascending direction if the track is set on a
+     *         slope. If it is set as a curve, the corner of the track is
+     *         returned.
+     */
+    public BlockFace getDirection() {
+        byte d = getData();
+        switch (d) {
+        case 0x0:
+        default:
+            return BlockFace.WEST;
+        case 0x1:
+            return BlockFace.SOUTH;
+        case 0x2:
+            return BlockFace.SOUTH;
+        case 0x3:
+            return BlockFace.NORTH;
+        case 0x4:
+            return BlockFace.EAST;
+        case 0x5:
+            return BlockFace.WEST;
+        case 0x6:
+            return BlockFace.NORTH_EAST;
+        case 0x7:
+            return BlockFace.SOUTH_EAST;
+        case 0x8:
+            return BlockFace.SOUTH_WEST;
+        case 0x9:
+            return BlockFace.NORTH_WEST;
+        }
+    }
+    
+    @Override
+    public String toString() {
+        return super.toString() + " facing " + getDirection() + (isCurve() ? " on a curve" : (isOnSlope() ? " on a slope" : ""));
+    }
+}