working

src/main/java/net/Chipperfluff/chipi/client/ChipiClient.java

@@ -2,6 +2,8 @@ package net.Chipperfluff.chipi.client;
 
 import net.Chipperfluff.chipi.block.ModBlocks;
 import net.Chipperfluff.chipi.client.entity.ModEntityRenderers;
+import net.Chipperfluff.chipi.client.hud.ChipiStatusBar;
+import net.Chipperfluff.chipi.util.ClientTickScheduler;
 import net.fabricmc.api.ClientModInitializer;
 import net.fabricmc.fabric.api.blockrenderlayer.v1.BlockRenderLayerMap;
 import net.minecraft.client.render.RenderLayer;
@@ -13,5 +15,7 @@ public class ChipiClient implements ClientModInitializer {
         BlockRenderLayerMap.INSTANCE.putBlock(ModBlocks.CHIPPER_PORTAL, RenderLayer.getTranslucent());
         ModEntityRenderers.register();
         ModTooltips.register();
+        ChipiStatusBar.register();
+        ClientTickScheduler.init();
     }
 }

src/main/java/net/Chipperfluff/chipi/client/hud/ChipiStatusBar.java

@@ -0,0 +1,83 @@
+package net.Chipperfluff.chipi.client.hud;
+
+import net.Chipperfluff.chipi.item.ModItems;
+import net.fabricmc.fabric.api.client.rendering.v1.HudRenderCallback;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.PlayerInventory;
+
+import static net.Chipperfluff.chipi.util.ChipiTrackedData.CHIPI_ENERGY;
+
+public class ChipiStatusBar {
+
+    private static final int ORANGE = 0xFFFF8000;
+    private static final int OUTLINE_LIGHT = 0xFFB0B0B0;
+    private static final int OUTLINE_DARK  = 0xFF404040;
+    private static final int BAR_HEIGHT = 6;
+
+    public static void register() {
+        HudRenderCallback.EVENT.register(ChipiStatusBar::render);
+    }
+
+    private static void render(DrawContext ctx, float tickDelta) {
+        MinecraftClient client = MinecraftClient.getInstance();
+        if (client.player == null || client.options.hudHidden) return;
+        if (!hasFullChipperArmor(client.player)) return;
+
+        Float value = client.player.getDataTracker().get(CHIPI_ENERGY);
+        if (value == null) return;
+
+        value = Math.max(0f, Math.min(1f, value));
+
+        int screenWidth = client.getWindow().getScaledWidth();
+        int screenHeight = client.getWindow().getScaledHeight();
+
+        int barWidth = (int)(80 * 0.8f);
+        int centerX = screenWidth / 2;
+        int left = centerX - barWidth / 2;
+        int right = left + barWidth;
+
+        int heartsY = screenHeight - 39;
+        int barY = heartsY - BAR_HEIGHT - 4;
+
+        int fillWidth = (int)(barWidth * value);
+
+        float alpha = value >= 1f ? 0.65f :
+                value < 0.10f
+                        ? (float)(0.6f + 0.4f * Math.sin(System.currentTimeMillis() / 120.0))
+                        : 1f;
+
+        int outlineDark = applyAlpha(OUTLINE_DARK, alpha);
+        int outlineLight = applyAlpha(OUTLINE_LIGHT, alpha);
+        int fillColor = applyAlpha(ORANGE, alpha);
+
+        ctx.fill(left - 1, barY - 1, right + 1, barY, outlineDark);
+        ctx.fill(left - 1, barY + BAR_HEIGHT, right + 1, barY + BAR_HEIGHT + 1, outlineLight);
+        ctx.fill(left - 1, barY, left, barY + BAR_HEIGHT, outlineDark);
+        ctx.fill(right, barY, right + 1, barY + BAR_HEIGHT, outlineLight);
+        ctx.fill(left, barY, left + fillWidth, barY + BAR_HEIGHT, fillColor);
+
+        ctx.drawText(
+                client.textRenderer,
+                String.format("%03d%%", Math.round(value * 100f)),
+                right + 6,
+                barY - 2,
+                fillColor,
+                true
+        );
+    }
+
+    private static int applyAlpha(int color, float alpha) {
+        int a = (int)(((color >> 24) & 0xFF) * alpha);
+        return (a << 24) | (color & 0x00FFFFFF);
+    }
+
+    private static boolean hasFullChipperArmor(PlayerEntity player) {
+        PlayerInventory inv = player.getInventory();
+        return inv.getArmorStack(3).isOf(ModItems.CHIPPER_HELMET)
+                && inv.getArmorStack(2).isOf(ModItems.CHIPPER_CHESTPLATE)
+                && inv.getArmorStack(1).isOf(ModItems.CHIPPER_LEGGINGS)
+                && inv.getArmorStack(0).isOf(ModItems.CHIPPER_BOOTS);
+    }
+}

src/main/java/net/Chipperfluff/chipi/item/ModItems.java

@@ -12,6 +12,7 @@ import net.minecraft.util.Identifier;
 import net.Chipperfluff.chipi.item.tool.ChipperToolMaterial;
 import net.Chipperfluff.chipi.item.MepMilkItem;
 import net.minecraft.item.Items;
+import net.Chipperfluff.chipi.item.armor.ChipperArmorItem;
 
 public class ModItems {
 
@@ -94,25 +95,25 @@ public class ModItems {
     public static final Item CHIPPER_HELMET = Registry.register(
         Registries.ITEM,
         new Identifier(ChipiMod.MOD_ID, "chipper_helmet"),
-        new ArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.HELMET, new Item.Settings())
+        new ChipperArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.HELMET, new Item.Settings())
     );
 
     public static final Item CHIPPER_CHESTPLATE = Registry.register(
         Registries.ITEM,
         new Identifier(ChipiMod.MOD_ID, "chipper_chestplate"),
-        new ArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.CHESTPLATE, new Item.Settings())
+        new ChipperArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.CHESTPLATE, new Item.Settings())
     );
 
     public static final Item CHIPPER_LEGGINGS = Registry.register(
         Registries.ITEM,
         new Identifier(ChipiMod.MOD_ID, "chipper_leggings"),
-        new ArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.LEGGINGS, new Item.Settings())
+        new ChipperArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.LEGGINGS, new Item.Settings())
     );
 
     public static final Item CHIPPER_BOOTS = Registry.register(
         Registries.ITEM,
         new Identifier(ChipiMod.MOD_ID, "chipper_boots"),
-        new ArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.BOOTS, new Item.Settings())
+        new ChipperArmorItem(ChipperArmorMaterial.INSTANCE, ArmorItem.Type.BOOTS, new Item.Settings())
     );
 
     // ===== TOOLS =====

src/main/java/net/Chipperfluff/chipi/item/armor/ChipperArmorItem.java

@@ -0,0 +1,36 @@
+package net.Chipperfluff.chipi.item.armor;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.EquipmentSlot;
+import net.minecraft.item.ArmorItem;
+import net.minecraft.item.ArmorMaterial;
+import net.minecraft.item.ItemStack;
+import net.minecraft.world.World;
+
+public class ChipperArmorItem extends ArmorItem {
+
+    public ChipperArmorItem(
+            ArmorMaterial material,
+            Type type,
+            Settings settings
+    ) {
+        super(material, type, settings);
+    }
+
+    @Override
+    public void inventoryTick(
+            ItemStack stack,
+            World world,
+            Entity entity,
+            int slot,
+            boolean selected
+    ) {
+        if (slot >= EquipmentSlot.FEET.getEntitySlotId()
+                && slot <= EquipmentSlot.HEAD.getEntitySlotId()) {
+
+            if (stack.getDamage() != 0) {
+                stack.setDamage(0);
+            }
+        }
+    }
+}

src/main/java/net/Chipperfluff/chipi/item/armor/ChipperArmorMaterial.java

@@ -18,16 +18,16 @@ public class ChipperArmorMaterial implements ArmorMaterial {
     private static final Map<ArmorItem.Type, Integer> PROTECTION = Util.make(
         new EnumMap<>(ArmorItem.Type.class),
         map -> {
-            map.put(ArmorItem.Type.HELMET, 2);
+            map.put(ArmorItem.Type.HELMET, 0);
-            map.put(ArmorItem.Type.CHESTPLATE, 5);
+            map.put(ArmorItem.Type.CHESTPLATE, 0);
-            map.put(ArmorItem.Type.LEGGINGS, 4);
+            map.put(ArmorItem.Type.LEGGINGS, 0);
-            map.put(ArmorItem.Type.BOOTS, 2);
+            map.put(ArmorItem.Type.BOOTS, 0);
         }
     );
 
     @Override
     public int getDurability(ArmorItem.Type type) {
-        return 3 * type.getEquipmentSlot().getEntitySlotId();
+        return 10_000;
     }
 
     @Override
@@ -57,11 +57,11 @@ public class ChipperArmorMaterial implements ArmorMaterial {
 
     @Override
     public float getToughness() {
-        return 2.0f;
+        return 0.0f;
     }
 
     @Override
     public float getKnockbackResistance() {
-        return 0.4f;
+        return 0.0f;
     }
 }

src/main/java/net/Chipperfluff/chipi/mixin/DataTrackerMixin.java

@@ -0,0 +1,29 @@
+package net.Chipperfluff.chipi.mixin;
+
+import net.minecraft.entity.data.DataTracker;
+import net.minecraft.entity.data.TrackedData;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(DataTracker.class)
+public abstract class DataTrackerMixin {
+
+    @Shadow
+    protected abstract <T> DataTracker.Entry<T> getEntry(TrackedData<T> data);
+
+    @Inject(method = "get", at = @At("HEAD"), cancellable = true)
+    private <T> void chipi$nullSafeGet(
+            TrackedData<T> data,
+            CallbackInfoReturnable<T> cir
+    ) {
+        DataTracker.Entry<T> entry = this.getEntry(data);
+
+        if (entry == null) {
+            cir.setReturnValue(null);
+        }
+    }
+}

src/main/java/net/Chipperfluff/chipi/mixin/PlayerEntityMixin.java

@@ -0,0 +1,30 @@
+package net.Chipperfluff.chipi.mixin;
+
+import com.mojang.authlib.GameProfile;
+import net.Chipperfluff.chipi.util.ChipiTrackedData;
+import net.minecraft.entity.data.DataTracker;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(PlayerEntity.class)
+public abstract class PlayerEntityMixin {
+
+    @Inject(method = "<init>", at = @At("TAIL"))
+    private void chipi$initTrackedData(
+            World world,
+            BlockPos pos,
+            float yaw,
+            GameProfile profile,
+            CallbackInfo ci
+    ) {
+        PlayerEntity self = (PlayerEntity)(Object)this;
+        DataTracker tracker = self.getDataTracker();
+
+        tracker.startTracking(ChipiTrackedData.CHIPI_ENERGY, 1.0f);
+    }
+}

src/main/java/net/Chipperfluff/chipi/server/ChipiServerEvents.java

@@ -1,30 +1,40 @@
 package net.Chipperfluff.chipi.server;
 
-import net.Chipperfluff.chipi.block.ChipperPortalBlock;
-import net.Chipperfluff.chipi.world.gen.ChipiDungeonGenerator;
 import net.Chipperfluff.chipi.SpawnPlacedState;
-
+import net.Chipperfluff.chipi.block.ChipperPortalBlock;
+import net.Chipperfluff.chipi.item.ModItems;
+import net.Chipperfluff.chipi.world.gen.ChipiDungeonGenerator;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerWorldEvents;
-
+import net.minecraft.block.BlockState;
+import net.minecraft.block.SlabBlock;
+import net.minecraft.block.StairsBlock;
 import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.PlayerInventory;
 import net.minecraft.registry.RegistryKey;
 import net.minecraft.registry.RegistryKeys;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.structure.StructurePlacementData;
 import net.minecraft.structure.StructureTemplate;
+import net.minecraft.state.property.Properties;
 import net.minecraft.util.Identifier;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.GameRules;
 import net.minecraft.world.World;
 
+import static net.Chipperfluff.chipi.util.ChipiTrackedData.CHIPI_ENERGY;
+
 public final class ChipiServerEvents {
 
     public static final RegistryKey<World> CHIPI_DIMENSION_KEY =
             RegistryKey.of(RegistryKeys.WORLD, new Identifier("chipi", "chipi_dimension"));
 
+    private static final float RECHARGE_RATE = 0.0005f;
+    private static final float DRAIN_RATE = 0.0008f;
+
     private static final Identifier SPAWN_STRUCTURE =
             new Identifier("chipi", "spawn");
 
@@ -33,38 +43,52 @@ public final class ChipiServerEvents {
     private ChipiServerEvents() {}
 
     public static void register() {
-
+        ServerLifecycleEvents.SERVER_STARTED.register(server -> SERVER = server);
-        ServerLifecycleEvents.SERVER_STARTED.register(server -> {
+        ServerTickEvents.END_SERVER_TICK.register(ChipiServerEvents::tickEnergy);
-            SERVER = server;
-        });
-
         ServerTickEvents.END_WORLD_TICK.register(ChipiServerEvents::handleVoidFailsafe);
-
         ServerWorldEvents.LOAD.register(ChipiServerEvents::onWorldLoad);
     }
 
-    // ============================================================
+    private static void tickEnergy(MinecraftServer server) {
-    // Tick logic
+        for (ServerPlayerEntity player : server.getPlayerManager().getPlayerList()) {
-    // ============================================================
+
+            if (!hasFullChipperArmor(player)) continue;
+
+            Float value = player.getDataTracker().get(CHIPI_ENERGY);
+            if (value == null) continue; // ultra-safe, but should never happen now
+
+            boolean inChipi = player.getWorld().getRegistryKey().equals(CHIPI_DIMENSION_KEY);
+            boolean onProtected = isOnProtectedBlock(player);
+
+            float next = value;
+
+            if (!inChipi || onProtected) {
+                next = Math.min(1.0f, value + RECHARGE_RATE);
+            } else {
+                next = Math.max(0.0f, value - DRAIN_RATE);
+            }
+
+            if (next != value) {
+                player.getDataTracker().set(CHIPI_ENERGY, next);
+            }
+        }
+    }
+
     private static void handleVoidFailsafe(ServerWorld world) {
         if (!world.getRegistryKey().equals(CHIPI_DIMENSION_KEY)) return;
 
         for (PlayerEntity player : world.getPlayers()) {
-            if (player.getBlockY() >= 50) continue;
+            if (player.getBlockY() < 50) {
                 ChipperPortalBlock.teleportToChipiSpawn(world, player);
             }
         }
+    }
 
-    // ============================================================
-    // World init
-    // ============================================================
     private static void onWorldLoad(MinecraftServer server, ServerWorld world) {
         if (!world.getRegistryKey().equals(CHIPI_DIMENSION_KEY)) return;
 
         world.setTimeOfDay(18000);
-        world.getGameRules()
+        world.getGameRules().get(GameRules.DO_DAYLIGHT_CYCLE).set(false, server);
-            .get(GameRules.DO_DAYLIGHT_CYCLE)
-            .set(false, server);
 
         SpawnPlacedState state = world.getPersistentStateManager().getOrCreate(
                 SpawnPlacedState::fromNbt,
@@ -75,14 +99,9 @@ public final class ChipiServerEvents {
         if (state.placed) return;
 
         StructureTemplate spawnTemplate =
-            world.getStructureTemplateManager()
+                world.getStructureTemplateManager().getTemplate(SPAWN_STRUCTURE).orElse(null);
-                .getTemplate(SPAWN_STRUCTURE)
-                .orElse(null);
 
-        if (spawnTemplate == null) {
+        if (spawnTemplate == null) return;
-            System.err.println("[CHIPI] spawn.nbt not found!");
-            return;
-        }
 
         BlockPos spawnCenter = new BlockPos(0, 80, 0);
 
@@ -96,20 +115,33 @@ public final class ChipiServerEvents {
         );
 
         world.setSpawnPos(spawnCenter.up(), 0.0f);
-
         ChipiDungeonGenerator.generateInitialLayout(world, spawnCenter);
 
         state.placed = true;
         state.markDirty();
-
-        System.out.println("[CHIPI] Spawn + initial dungeon generated");
     }
 
-    // ============================================================
-    // Access
-    // ============================================================
     public static ServerWorld getChipiWorld() {
-        if (SERVER == null) return null;
+        return SERVER == null ? null : SERVER.getWorld(CHIPI_DIMENSION_KEY);
-        return SERVER.getWorld(CHIPI_DIMENSION_KEY);
+    }
+
+    private static boolean hasFullChipperArmor(PlayerEntity player) {
+        PlayerInventory inv = player.getInventory();
+        return inv.getArmorStack(3).isOf(ModItems.CHIPPER_HELMET)
+                && inv.getArmorStack(2).isOf(ModItems.CHIPPER_CHESTPLATE)
+                && inv.getArmorStack(1).isOf(ModItems.CHIPPER_LEGGINGS)
+                && inv.getArmorStack(0).isOf(ModItems.CHIPPER_BOOTS);
+    }
+
+    private static boolean isOnProtectedBlock(PlayerEntity player) {
+        BlockPos pos = player.getBlockPos();
+        BlockState state = player.getWorld().getBlockState(pos);
+
+        if (!state.contains(Properties.WATERLOGGED) || !state.get(Properties.WATERLOGGED)) {
+            return false;
+        }
+
+        return state.getBlock() instanceof StairsBlock
+                || state.getBlock() instanceof SlabBlock;
     }
 }

src/main/java/net/Chipperfluff/chipi/util/ChipiTrackedData.java

@@ -0,0 +1,14 @@
+package net.Chipperfluff.chipi.util;
+
+import net.minecraft.entity.data.DataTracker;
+import net.minecraft.entity.data.TrackedData;
+import net.minecraft.entity.data.TrackedDataHandlerRegistry;
+import net.minecraft.entity.player.PlayerEntity;
+
+public final class ChipiTrackedData {
+
+    public static final TrackedData<Float> CHIPI_ENERGY =
+            DataTracker.registerData(PlayerEntity.class, TrackedDataHandlerRegistry.FLOAT);
+
+    private ChipiTrackedData() {}
+}

src/main/java/net/Chipperfluff/chipi/util/ClientTickScheduler.java

@@ -0,0 +1,52 @@
+package net.Chipperfluff.chipi.util;
+
+import net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents;
+import net.minecraft.client.MinecraftClient;
+
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+public class ClientTickScheduler {
+
+    private static final List<ScheduledTask> TASKS = new LinkedList<>();
+    private static boolean registered = false;
+
+    public static void init() {
+        if (registered) return;
+        registered = true;
+
+        ClientTickEvents.END_CLIENT_TICK.register(ClientTickScheduler::tick);
+    }
+
+    public static void schedule(int delayTicks, Runnable action) {
+        TASKS.add(new ScheduledTask(delayTicks, action));
+    }
+
+    private static void tick(MinecraftClient client) {
+        Iterator<ScheduledTask> it = TASKS.iterator();
+        while (it.hasNext()) {
+            ScheduledTask task = it.next();
+            task.ticks--;
+
+            if (task.ticks <= 0) {
+                try {
+                    task.action.run();
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+                it.remove();
+            }
+        }
+    }
+
+    private static class ScheduledTask {
+        int ticks;
+        Runnable action;
+
+        ScheduledTask(int ticks, Runnable action) {
+            this.ticks = ticks;
+            this.action = action;
+        }
+    }
+}

src/main/resources/chipi.mixins.json

@@ -4,6 +4,8 @@
   "package": "net.Chipperfluff.chipi.mixin",
   "compatibilityLevel": "JAVA_17",
   "mixins": [
+    "DataTrackerMixin",
+    "PlayerEntityMixin"
   ],
   "injectors": {
     "defaultRequire": 1