添加拆弹器功能

src/main/java/com/atsuishio/superbwarfare/entity/projectile/C4Entity.java

@@ -22,6 +22,7 @@ import net.minecraft.util.Mth;
 import net.minecraft.world.InteractionHand;
 import net.minecraft.world.InteractionResult;
 import net.minecraft.world.entity.*;
+import net.minecraft.world.entity.item.ItemEntity;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.entity.projectile.Projectile;
 import net.minecraft.world.entity.projectile.ProjectileUtil;
@@ -46,6 +47,8 @@ public class C4Entity extends Projectile implements GeoEntity {
     protected static final EntityDataAccessor<String> TARGET_UUID = SynchedEntityData.defineId(C4Entity.class, EntityDataSerializers.STRING);
     public static final EntityDataAccessor<Boolean> IS_CONTROLLABLE = SynchedEntityData.defineId(C4Entity.class, EntityDataSerializers.BOOLEAN);
 
+    public static final int DEFAULT_DEFUSE_PROGRESS = 100;
+
     private final AnimatableInstanceCache cache = GeckoLibUtil.createInstanceCache(this);
     protected boolean inGround;
     protected boolean onEntity;
@@ -112,16 +115,12 @@ public class C4Entity extends Projectile implements GeoEntity {
             }
 
             if (!player.getAbilities().instabuild) {
-                ItemStack stack = new ItemStack(ModItems.C4_BOMB.get());
-                if (this.getEntityData().get(IS_CONTROLLABLE)) {
-                    stack.getOrCreateTag().putBoolean("Control", true);
+                ItemHandlerHelper.giveItemToPlayer(player, this.getItemStack());
             }
-                ItemHandlerHelper.giveItemToPlayer(player, stack);
-            }
-        }
-
             return InteractionResult.sidedSuccess(this.level().isClientSide());
         }
+        return InteractionResult.PASS;
+    }
 
     @Override
     public void tick() {
@@ -374,4 +373,20 @@ public class C4Entity extends Projectile implements GeoEntity {
     public boolean isPickable() {
         return true;
     }
+
+    public ItemStack getItemStack() {
+        ItemStack stack = new ItemStack(ModItems.C4_BOMB.get());
+        if (this.getEntityData().get(IS_CONTROLLABLE)) {
+            stack.getOrCreateTag().putBoolean("Control", true);
+        }
+        return stack;
+    }
+
+    public void defuse() {
+        this.discard();
+        ItemEntity entity = new ItemEntity(this.level(), this.getX(), this.getY(), this.getZ(), this.getItemStack());
+        if (!this.level().isClientSide) {
+            this.level().addFreshEntity(entity);
+        }
+    }
 }

src/main/java/com/atsuishio/superbwarfare/item/Defuser.java

@@ -1,6 +1,18 @@
 package com.atsuishio.superbwarfare.item;
 
+import com.atsuishio.superbwarfare.entity.projectile.C4Entity;
+import com.atsuishio.superbwarfare.tools.FormatTool;
+import com.atsuishio.superbwarfare.tools.TraceTool;
+import net.minecraft.ChatFormatting;
+import net.minecraft.network.chat.Component;
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.InteractionResultHolder;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.Level;
 
 public class Defuser extends Item {
 
@@ -8,4 +20,44 @@ public class Defuser extends Item {
         super(new Properties().durability(8));
     }
 
+    @Override
+    public InteractionResultHolder<ItemStack> use(Level pLevel, Player pPlayer, InteractionHand pUsedHand) {
+        ItemStack stack = pPlayer.getItemInHand(pUsedHand);
+        if (findBombInSight(pPlayer) != null) {
+            pPlayer.startUsingItem(pUsedHand);
+            return InteractionResultHolder.consume(stack);
+        }
+        return InteractionResultHolder.fail(stack);
+    }
+
+    private static C4Entity findBombInSight(Player player) {
+        Entity target = TraceTool.findLookingEntity(player, 4);
+        return target instanceof C4Entity c4Entity ? c4Entity : null;
+    }
+
+    @Override
+    public void onUseTick(Level pLevel, LivingEntity pLivingEntity, ItemStack pStack, int pRemainingUseDuration) {
+        if (!(pLivingEntity instanceof Player player)) return;
+        var target = findBombInSight(player);
+        if (target == null) return;
+
+        int useTick = pStack.getUseDuration() - pRemainingUseDuration;
+
+        if (!pLevel.isClientSide) {
+            player.displayClientMessage(Component.literal(
+                    FormatTool.format1DZZ((C4Entity.DEFAULT_DEFUSE_PROGRESS - useTick) / 20d, "s")
+            ).withStyle(ChatFormatting.GREEN), true);
+        }
+
+        if (useTick >= C4Entity.DEFAULT_DEFUSE_PROGRESS) {
+            player.stopUsingItem();
+            pStack.hurtAndBreak(1, player, p -> p.broadcastBreakEvent(player.getUsedItemHand()));
+            target.defuse();
+        }
+    }
+
+    @Override
+    public int getUseDuration(ItemStack pStack) {
+        return 72000;
+    }
 }

src/main/java/com/atsuishio/superbwarfare/tools/FormatTool.java

@@ -44,4 +44,12 @@ public class FormatTool {
     public static String format1DZ(double num, String str) {
         return DECIMAL_FORMAT_1Z.format(num) + str;
     }
+
+    public static String format1DZZ(double num) {
+        return format1DZZ(num, "");
+    }
+
+    public static String format1DZZ(double num, String str) {
+        return DECIMAL_FORMAT_1ZZ.format(num) + str;
+    }
 }