Initial commit

Itemutils/src/main/java/eu/mikroskeem/utils/itemutils/Shield.java

@@ -0,0 +1,35 @@
+package eu.mikroskeem.utils.itemutils;
+
+import org.apache.commons.lang.Validate;
+import org.bukkit.Material;
+import org.bukkit.block.Banner;
+import org.bukkit.block.banner.Pattern;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.BlockStateMeta;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+
+public class Shield {
+    /**
+     * Set Minecraft shield design
+     *
+     * @param shieldStack Shield itemstack to apply design on
+     * @param patternList Banner design patterns
+     */
+    public static void setShieldDesign(@NotNull ItemStack shieldStack, @Nullable ArrayList<Pattern> patternList){
+        Validate.isTrue(shieldStack.getType().equals(Material.SHIELD), "Item must be a shield");
+
+        ItemMeta shieldMeta = shieldStack.getItemMeta();
+        BlockStateMeta shieldbMeta = (BlockStateMeta)shieldMeta;
+
+        Banner banner = (Banner)shieldbMeta.getBlockState();
+        banner.setPatterns(patternList);
+        banner.update(); // TODO: find out if it is needed
+
+        shieldbMeta.setBlockState(banner);
+        shieldStack.setItemMeta(shieldMeta);
+    }
+}