added support for SmoothBrick and changed steps to a TexturedMaterial

By: sunkid <sunkid@iminurnetz.com>

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

@@ -0,0 +1,48 @@
+package org.bukkit.material;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.bukkit.Material;
+
+/**
+ * Represents the different types of smooth bricks.
+ */
+public class SmoothBrick extends TexturedMaterial {
+
+    private static final List<Material> textures = new ArrayList<Material>();
+    static {
+        textures.add(Material.STONE);
+        textures.add(Material.MOSSY_COBBLESTONE);
+        textures.add(Material.COBBLESTONE);
+    }
+
+    public SmoothBrick() {
+        super(Material.SMOOTH_BRICK);
+    }
+
+    public SmoothBrick(final int type) {
+        super(type);
+    }
+
+    public SmoothBrick(final Material type) {
+        super((textures.contains(type)) ? Material.SMOOTH_BRICK : type);
+        if (textures.contains(type)) {
+            setMaterial(type);
+        }
+    }
+
+    public SmoothBrick(final int type, final byte data) {
+        super(type, data);
+    }
+
+    public SmoothBrick(final Material type, final byte data) {
+        super(type, data);
+    }
+
+    @Override
+    public List<Material> getTextures() {
+        return textures;
+    }
+
+}