Implement BowItem (#53)

* Implement all `Block` virtuals & numerous symbols

* linter

* clang-format

* same change 😄

* clean

* Update ServerPlayer.h

* Update BaseEntityBlock.h

* Update FireworksRocketEntity.h

* Update ExperienceOrb.h

* `BowItem` implemented

* linter

* update patch to be without decomp's formatting

Author: Bagietas

data/mcswitch_functions.csv

@@ -2588,26 +2588,26 @@ Address,Quality,Size,Name
 0x000000710006f7b0,U,000012,
 0x000000710006f7bc,U,000148,
 0x000000710006f850,U,000152,
-0x000000710006f8e8,U,000300,_ZN7BowItemC_gen
-0x000000710006fa14,U,000048,_ZN33BowItem_Pull_ItemPropertyFunctionC_gen
-0x000000710006fa44,U,000048,_ZN36BowItem_Pulling_ItemPropertyFunctionC_gen
+0x000000710006f8e8,O,000300,_ZN7BowItemC1Ev
+0x000000710006fa14,U,000048,_ZN33BowItem_Pull_ItemPropertyFunctionC1Ev
+0x000000710006fa44,U,000048,_ZN36BowItem_Pulling_ItemPropertyFunctionC1Ev
 0x000000710006fa74,U,000332,_ZN7BowItem14findProjectileERKNSt3__110shared_ptrI6PlayerEE
 0x000000710006fbc0,U,000092,
-0x000000710006fc1c,U,000264,_ZN7BowItem12releaseUsingE12not_null_ptrI12ItemInstanceEP5LevelNSt3__110shared_ptrI12LivingEntityEEi
+0x000000710006fc1c,O,000264,_ZN7BowItem12releaseUsingE12not_null_ptrI12ItemInstanceEP5LevelNSt3__110shared_ptrI12LivingEntityEEi
 0x000000710006fd24,U,001344,
 0x0000007100070264,U,000068,
-0x00000071000702a8,U,000044,
-0x00000071000702d4,U,000012,_ZN7BowItem14getUseDurationE12not_null_ptrI12ItemInstanceE
-0x00000071000702e0,U,000008,_ZN7BowItem15getUseAnimationE12not_null_ptrI12ItemInstanceE
-0x00000071000702e8,U,000164,_ZN7BowItem3useEP5LevelNSt3__110shared_ptrI6PlayerEEN15InteractionHand16EInteractionHandE
-0x000000710007038c,U,000180,
-0x0000007100070440,U,000008,_ZN7BowItem19getEnchantmentValueEv
-0x0000007100070448,U,000124,_ZN7BowItem13registerIconsEP12IconRegister
-0x00000071000704c4,U,000012,
-0x00000071000704d0,U,000008,_ZN7BowItem16GetOverrideCountEv
-0x00000071000704d8,U,000004,_ZN7BowItem22GetOverrideCountColourEv
-0x00000071000704dc,U,000264,_ZN7BowItem20GetOverrideCountIconE12not_null_ptrI12ItemInstanceE
-0x00000071000705e4,U,000140,_ZN7BowItem13GetUseTooltipERK21ItemToolTipDataHolder
+0x00000071000702a8,O,000044,_ZN7BowItem17GetMaxBowDurationEv
+0x00000071000702d4,O,000012,_ZN7BowItem14getUseDurationE12not_null_ptrI12ItemInstanceE
+0x00000071000702e0,O,000008,_ZN7BowItem15getUseAnimationE12not_null_ptrI12ItemInstanceE
+0x00000071000702e8,O,000164,_ZN7BowItem3useEP5LevelNSt3__110shared_ptrI6PlayerEEN15InteractionHand16EInteractionHandE
+0x000000710007038c,O,000180,_ZN7BowItem19fjUseWithProjectileEP5LevelNSt3__110shared_ptrI6PlayerEEN15InteractionHand16EInteractionHandE12not_null_ptrI12ItemInstanceE
+0x0000007100070440,O,000008,_ZN7BowItem19getEnchantmentValueEv
+0x0000007100070448,O,000124,_ZN7BowItem13registerIconsEP12IconRegister
+0x00000071000704c4,O,000012,_ZN7BowItem12getDrawnIconEi
+0x00000071000704d0,O,000008,_ZN7BowItem16GetOverrideCountEv
+0x00000071000704d8,O,000004,_ZN7BowItem22GetOverrideCountColourEv
+0x00000071000704dc,O,000264,_ZN7BowItem20GetOverrideCountIconE12not_null_ptrI12ItemInstanceE
+0x00000071000705e4,O,000140,_ZN7BowItem13GetUseTooltipERK21ItemToolTipDataHolder
 0x0000007100070670,U,000060,_ZN12BowlFoodItemC_gen
 0x00000071000706ac,U,000212,
 0x0000007100070780,U,000056,_ZN13BreakDoorGoalC_gen
@@ -3948,7 +3948,7 @@ Address,Quality,Size,Name
 0x00000071000b2780,U,000056,_ZN9BossEventC_gen2
 0x00000071000b27b8,U,000036,_ZN9BossEventD0Ev
 0x00000071000b27dc,U,000036,_ZN10BottleItemD0Ev
-0x00000071000b2800,U,000036,_ZN7BowItemD0Ev
+0x00000071000b2800,O,000036,_ZN7BowItemD0Ev
 0x00000071000b2824,U,000036,_ZN12BowlFoodItemD0Ev
 0x00000071000b2848,U,000004,
 0x00000071000b284c,U,000036,_ZN13BreakDoorGoalD0Ev
@@ -15280,7 +15280,7 @@ Address,Quality,Size,Name
 0x0000007100220e64,U,000840,_ZN12LivingEntity21spawnItemUseParticlesE12not_null_ptrI12ItemInstanceEi
 0x00000071002211ac,U,000016,
 0x00000071002211bc,U,000316,_ZN12LivingEntity17completeUsingItemEv
-0x00000071002212f8,U,000012,
+0x00000071002212f8,O,000012,_ZN12LivingEntity10getUseItemEv
 0x0000007100221304,U,000088,_ZN12LivingEntity17getTicksUsingItemEv
 0x000000710022135c,U,000060,_ZN12LivingEntity16releaseUsingItemEv
 0x0000007100221398,U,000180,_ZN12LivingEntity16releaseUsingItemEi
@@ -30681,7 +30681,6 @@ Address,Quality,Size,Name
 0x0000007100495584,U,000020,
 0x0000007100495598,U,000008,
 0x00000071004955a0,U,000020,
-0x00000071004955b4,U,000032,
 0x00000071004955d4,U,000020,
 0x00000071004955e8,U,000036,
 0x000000710049560c,U,000080,_ZN35PodiumPlaceMostBlocksDestroyedMedalC_gen

src/Minecraft.World/net/minecraft/world/Explosion.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include <memory>
+
+class Entity;
+
+class Explosion {
+public:
+    std::shared_ptr<Entity> getDirectSource();
+};

src/Minecraft.World/net/minecraft/world/entity/LivingEntity.cpp

@@ -12,11 +12,13 @@
 #include "net/minecraft/world/effect/MobEffects.h"
 #include "net/minecraft/world/entity/Entity.h"
 #include "net/minecraft/world/entity/player/Player.h"
+#include "net/minecraft/world/item/ItemInstance.h"
 #include "net/minecraft/world/item/enchantment/EnchantmentHelper.h"
 #include "net/minecraft/world/level/block/Blocks.h"
 #include "net/minecraft/world/level/block/state/BlockState.h"
 #include "net/minecraft/world/level/chunk/LevelChunk.h"
 #include "net/minecraft/world/level/gamemode/minigames/MiniGameDef.h"
+#include "types.h"
 #include <cmath>
 #include <memory>
 
@@ -274,3 +276,7 @@ void LivingEntity::setAbsorptionAmount(float amount) {
 void LivingEntity::onEnterCombat() {}
 void LivingEntity::onLeaveCombat() {}
 void LivingEntity::setRecordPlayingNearby(const BlockPos&, bool) {}
+
+not_null_ptr<ItemInstance> LivingEntity::getUseItem() {
+    return this->mUseItem;
+}

src/Minecraft.World/net/minecraft/world/entity/LivingEntity.h

@@ -184,6 +184,7 @@ class LivingEntity : public Entity {
     void init();
     void CheckThermalAreas();
     void fallFlyingTravel(double&, double&, double&, Vec3*, float&, float&, double&, double);
+    not_null_ptr<ItemInstance> getUseItem();
 
     Attribute* mAttributes;
     CombatTracker* mCombatTracker;
@@ -262,7 +263,7 @@ class LivingEntity : public Entity {
     float mSpeed;
     int mNoJumpDelay;
     float mAbsorptionAmount;
-    std::shared_ptr<ItemInstance> mUseItem;  // probably not_null_ptr
+    not_null_ptr<ItemInstance> mUseItem;
     int mUseItemRemaining;
     int mFallFlyTicks;
     BlockPos mLastPos;

src/Minecraft.World/net/minecraft/world/inventory/Inventory.h

@@ -7,6 +7,7 @@
 class Inventory : public Container {
 public:
     bool add(not_null_ptr<ItemInstance>);
+    bool hasResource(Item*);
 
     void getName() override;
     void getCustomName() override;

src/Minecraft.World/net/minecraft/world/item/BowItem.cpp

@@ -0,0 +1,122 @@
+#include "net/minecraft/world/item/BowItem.h"
+
+#include "net/minecraft/client/Minecraft.h"
+#include "net/minecraft/client/renderer/texture/IconRegister.h"
+#include "net/minecraft/resources/ResourceLocation.h"
+#include "net/minecraft/world/eINSTANCEOF.h"
+#include "net/minecraft/world/entity/player/MultiplayerLocalPlayer.h"
+#include "net/minecraft/world/entity/player/Player.h"
+#include "net/minecraft/world/inventory/Inventory.h"
+#include "net/minecraft/world/item/InteractionResultHolder.h"
+#include "net/minecraft/world/item/Item.h"
+#include "net/minecraft/world/item/ItemInstance.h"
+#include "net/minecraft/world/item/Items.h"
+#include "types.h"
+#include <cstring>
+#include <memory>
+
+BowItem::BowItem() : Item() {
+    this->mMaxStackSize = 1;
+    this->setMaxDamage(384);
+
+    memset(this->mBowIcons, 0, 3 * sizeof(TextureAtlasSprite*));  // sizeof because readability
+
+    this->addProperty(ResourceLocation(L"pull"),
+                      (const ItemPropertyFunction*)new BowItem_Pull_ItemPropertyFunction());
+
+    this->addProperty(ResourceLocation(L"pulling"),
+                      (const ItemPropertyFunction*)new BowItem_Pulling_ItemPropertyFunction());
+}
+
+int BowItem::GetUseTooltip(const ItemToolTipDataHolder& data) {
+    if (!data.mPlayer->mAbilities.mIsInstabuild && !data.mPlayer->mInventory->hasResource(Items::ARROW)
+        && !data.mPlayer->mInventory->hasResource(Items::TIPPED_ARROW)) {
+        return 0xFFFFFFFF;
+    }
+    if (data.mPlayer->isUsingItem())
+        return 0xEC754EE9;
+    return 0x4381BCF0;
+}
+
+InteractionResultHolder BowItem::use(Level* level, std::shared_ptr<Player> player,
+                                     InteractionHand::EInteractionHand hand) {
+    return this->fjUseWithProjectile(level, player, hand, this->findProjectile(player));
+}
+
+int BowItem::getUseAnimation(not_null_ptr<ItemInstance>) {
+    return 4;
+}
+
+int BowItem::getUseDuration(not_null_ptr<ItemInstance>) {
+    return 72000;
+}
+
+void BowItem::releaseUsing(not_null_ptr<ItemInstance> item, Level* level, std::shared_ptr<LivingEntity> user,
+                           int remainingTicks) {
+    if (user->isType(ePlayer)) {
+        std::shared_ptr<Player> player = std::static_pointer_cast<Player>(user);
+        not_null_ptr<ItemInstance> projectile = this->findProjectile(player);
+        this->fjReleaseUsingWithProjectile(item, level, player, remainingTicks, projectile);
+    }
+}
+
+int BowItem::getEnchantmentValue() {
+    return 1;
+}
+
+std::wstring BowItem::BOW_ICON_NAMES[3] = {L"bow_pull_0", L"bow_pull_1", L"bow_pull_2"};
+
+void BowItem::registerIcons(IconRegister* iconReg) {
+    Item::registerIcons(iconReg);
+
+    this->mBowIcons[0] = iconReg->registerIcon(BOW_ICON_NAMES[0]);
+    this->mBowIcons[1] = iconReg->registerIcon(BOW_ICON_NAMES[1]);
+    this->mBowIcons[2] = iconReg->registerIcon(BOW_ICON_NAMES[2]);
+}
+
+int BowItem::GetOverrideCount() {
+    return 0;
+}
+
+int BowItem::GetOverrideCountColour() {
+    return Item::GetOverrideCountColour();
+}
+
+TextureAtlasSprite* BowItem::GetOverrideCountIcon(not_null_ptr<ItemInstance> item) {
+    if (Minecraft::GetInstance()->mLocalPlayer->getUseItem() == item) {
+        int ticksUsingItem = Minecraft::GetInstance()->mLocalPlayer->getTicksUsingItem();
+        if (ticksUsingItem >= BowItem::GetMaxBowDuration() - 2)
+            return Items::BOW->getDrawnIcon(2);
+
+        if (ticksUsingItem > (2 * BowItem::GetMaxBowDuration()) / 3)
+            return Items::BOW->getDrawnIcon(1);
+
+        if (ticksUsingItem > 0)
+            return Items::BOW->getDrawnIcon(0);
+    }
+
+    return Item::GetOverrideCountIcon(item);
+}
+
+InteractionResultHolder BowItem::fjUseWithProjectile(Level* level, std::shared_ptr<Player> player,
+                                                     InteractionHand::EInteractionHand hand,
+                                                     not_null_ptr<ItemInstance> item) {
+    not_null_ptr<ItemInstance> itemInHand = player->getItemInHand(hand);
+    bool isEmpty = item->isEmpty();
+    if (player->mAbilities.mIsInstabuild || !isEmpty) {
+        player->startUsingItem(hand);
+        return InteractionResultHolder(InteractionResult::SUCCESS, itemInHand);
+    } else {
+        // shame on 4J, I've spent too much time to figure out they've done this shit down below
+        return isEmpty ? InteractionResultHolder(InteractionResult::FAIL, itemInHand) :
+                         InteractionResultHolder(InteractionResult::PASS, itemInHand);
+    }
+}
+
+TextureAtlasSprite* BowItem::getDrawnIcon(int id) {
+    return this->mBowIcons[id];
+}
+
+int BowItem::GetMaxBowDuration() {
+    return Minecraft::GetInstance()->GetMiniGame()->HasFeatureArrowCanKnockback() ? 10 : 20;
+}

src/Minecraft.World/net/minecraft/world/item/BowItem.h

@@ -1,12 +1,51 @@
 #pragma once
 
+#include "net/minecraft/client/renderer/texture/TextureAtlasSprite.h"
 #include "net/minecraft/world/item/Item.h"
 #include <memory>
+#include <string>
 
 class Player;
 class ItemInstance;
 
+class BowItem_Pull_ItemPropertyFunction : ItemPropertyFunction {
+public:
+    void call(not_null_ptr<ItemInstance>, Level*, std::shared_ptr<LivingEntity>) override;
+};
+
+class BowItem_Pulling_ItemPropertyFunction : ItemPropertyFunction {
+public:
+    void call(not_null_ptr<ItemInstance>, Level*, std::shared_ptr<LivingEntity>) override;
+};
+
 class BowItem : public Item {
 public:
-    not_null_ptr<ItemInstance> findProjectile(const std::shared_ptr<Player>&);
+    BowItem();
+
+    static int GetMaxBowDuration();
+
+    int GetUseTooltip(const ItemToolTipDataHolder&) override;
+    InteractionResultHolder use(Level*, std::shared_ptr<Player>, InteractionHand::EInteractionHand) override;
+    int getUseAnimation(not_null_ptr<ItemInstance>) override;
+    int getUseDuration(not_null_ptr<ItemInstance>) override;
+    void releaseUsing(not_null_ptr<ItemInstance> item, Level* level, std::shared_ptr<LivingEntity> user,
+                      int remainingTicks) override;
+    int getEnchantmentValue() override;
+    void registerIcons(IconRegister*) override;
+    int GetOverrideCount() override;
+    int GetOverrideCountColour() override;
+    TextureAtlasSprite* GetOverrideCountIcon(not_null_ptr<ItemInstance>) override;
+
+    not_null_ptr<ItemInstance> findProjectile(std::shared_ptr<Player>);
+    InteractionResultHolder fjUseWithProjectile(Level*, std::shared_ptr<Player>,
+                                                InteractionHand::EInteractionHand,
+                                                not_null_ptr<ItemInstance>);
+    void fjReleaseUsingWithProjectile(not_null_ptr<ItemInstance> bow, Level* level,
+                                      std::shared_ptr<LivingEntity> shooter, int remainingTicks,
+                                      not_null_ptr<ItemInstance> projectile);
+    TextureAtlasSprite* getDrawnIcon(int id);
+
+    static std::wstring BOW_ICON_NAMES[3];
+
+    TextureAtlasSprite* mBowIcons[3];
 };

src/Minecraft.World/net/minecraft/world/item/Item.h

@@ -5,6 +5,7 @@
 #include "net/minecraft/world/entity/EquipmentSlot.h"
 #include "net/minecraft/world/entity/ai/attributes/AttributeModifier.h"
 #include "net/minecraft/world/item/InteractionResultHolder.h"
+#include "net/minecraft/world/item/ItemTooltipDataHolder.h"
 #include "types.h"
 #include <memory>
 #include <string>
@@ -18,11 +19,6 @@ class Level;
 class Player;
 class BlockState;
 class CompoundTag;
-class ItemToolTipDataHolder {
-public:
-    char gap0[24];
-    int idk;
-};
 class Entity;
 class IconRegister;
 class BlockPos;
@@ -31,7 +27,7 @@ class TextureAtlasSprite;
 
 class ItemPropertyFunction {
 public:
-    virtual void call(not_null_ptr<ItemInstance>, Level*, std::shared_ptr<LivingEntity>);
+    virtual void call(not_null_ptr<ItemInstance>, Level*, std::shared_ptr<LivingEntity>) = 0;
 };
 
 // Don't know if this exists, it exists on Java

src/Minecraft.World/net/minecraft/world/item/ItemTooltipDataHolder.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <memory>
+
+class Player;
+
+class ItemToolTipDataHolder {
+public:
+    std::shared_ptr<Player> mPlayer;
+    void* fill;
+    int idk;
+};

src/Minecraft.World/net/minecraft/world/item/Items.cpp

@@ -13,7 +13,7 @@ void Items::staticCtor() {
     IRON_AXE = get(L"iron_axe");
     FLINT_AND_STEEL = get(L"flint_and_steel");
     APPLE = get(L"apple");
-    BOW = get(L"bow");
+    BOW = (BowItem*)get(L"bow");
     ARROW = get(L"arrow");
     SPECTRAL_ARROW = get(L"spectral_arrow");
     TIPPED_ARROW = get(L"tipped_arrow");