feat: MarkFiveCase equips mk5 suit

chore: util methods in SuitSet

src/main/java/mc/duzo/timeless/registry/Register.java

@@ -11,13 +11,19 @@
 
 import mc.duzo.timeless.Timeless;
 import mc.duzo.timeless.suit.SuitRegistry;
+import mc.duzo.timeless.suit.ironman.mk5.MarkFiveCase;
 import mc.duzo.timeless.suit.set.SetRegistry;
 
 public class Register {
     public static class Items {
+        public static MarkFiveCase MARK_FIVE_CASE = register("mk_five_case", new MarkFiveCase());
+
         public static <T extends Item> T register(Identifier id, T entry) {
             return Registry.register(Registries.ITEM, id, entry);
         }
+        private static <T extends Item> T register(String name, T entry) {
+            return register(new Identifier(Timeless.MOD_ID, name), entry);
+        }
     }
 
     public static void init() {

src/main/java/mc/duzo/timeless/suit/ironman/mk5/MarkFiveCase.java

@@ -0,0 +1,53 @@
+package mc.duzo.timeless.suit.ironman.mk5;
+
+import net.fabricmc.fabric.api.item.v1.FabricItemSettings;
+
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.util.Hand;
+import net.minecraft.util.TypedActionResult;
+import net.minecraft.world.World;
+
+import mc.duzo.timeless.registry.Register;
+import mc.duzo.timeless.suit.set.SetRegistry;
+import mc.duzo.timeless.suit.set.SuitSet;
+
+public class MarkFiveCase extends Item {
+    public MarkFiveCase() {
+        super(new FabricItemSettings().maxCount(1));
+    }
+
+    @Override
+    public TypedActionResult<ItemStack> use(World world, PlayerEntity user, Hand hand) {
+        if (world.isClient()) return TypedActionResult.consume(user.getStackInHand(hand));
+
+        boolean success = fromCase((ServerPlayerEntity) user, false);
+        return (success) ? TypedActionResult.consume(user.getStackInHand(hand)) : TypedActionResult.fail(user.getStackInHand(hand));
+    }
+
+    public static boolean toCase(ServerPlayerEntity player, boolean force) {
+        if (!force) {
+            if (!(getSet().isWearing(player))) return false;
+        }
+
+        player.getInventory().offerOrDrop(new ItemStack(Register.Items.MARK_FIVE_CASE));
+        return true;
+    }
+    public static boolean fromCase(ServerPlayerEntity player, boolean force) {
+        if (!force) {
+            if (!player.getMainHandStack().isOf(Register.Items.MARK_FIVE_CASE)) return false; // not holding
+            if (getSet().isWearing(player)) return false; // already wearing
+
+            player.getMainHandStack().setCount(0);
+        }
+
+        getSet().wear(player);
+        return true;
+    }
+
+    private static SuitSet getSet() {
+        return SetRegistry.MARK_FIVE;
+    }
+}

src/main/java/mc/duzo/timeless/suit/set/SuitSet.java

@@ -3,7 +3,9 @@
 import java.util.HashMap;
 import java.util.function.BiFunction;
 
+import net.minecraft.entity.LivingEntity;
 import net.minecraft.item.ArmorItem;
+import net.minecraft.item.ItemStack;
 import net.minecraft.util.Identifier;
 
 import mc.duzo.timeless.registry.Identifiable;
@@ -41,4 +43,26 @@ private void put(SuitItem... items) {
     public Identifier id() {
         return this.id;
     }
+    public Suit suit() {
+        return this.suit;
+    }
+
+    public boolean isWearing(LivingEntity entity) {
+        int target = this.values().size();
+        int count = 0;
+
+        for (ItemStack stack : entity.getArmorItems()) {
+            if (this.containsValue(stack.getItem())) {
+                count++;
+            }
+        }
+
+        return count == target;
+    }
+    public void wear(LivingEntity entity) {
+        this.values().forEach(item -> this.wear(entity, item));
+    }
+    private void wear(LivingEntity entity, SuitItem item) {
+        entity.equipStack(item.getSlotType(), new ItemStack(item));
+    }
 }

src/main/resources/timeless.mixins.json

@@ -3,8 +3,7 @@
 	"package": "mc.duzo.timeless.mixin",
 	"compatibilityLevel": "JAVA_17",
 	"mixins": [
-		"EnchantmentHelperMixin",
-		"PlayerEntityMixin"
+		"EnchantmentHelperMixin"
 	],
 	"client": [
 		"client.ArmorFeatureRendererMixin"