the whole game

src/world/item/SignItem.h

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+#ifndef NET_MINECRAFT_WORLD_ITEM__SignItem_H__
+#define NET_MINECRAFT_WORLD_ITEM__SignItem_H__
+
+//package net.minecraft.world.item;
+
+#include "../entity/player/Player.h"
+#include "../level/Level.h"
+#include "../level/tile/Tile.h"
+#include "../level/tile/entity/SignTileEntity.h"
+
+class SignItem: public Item
+{
+	typedef Item super;
+public:
+    SignItem(int id)
+    :   super(id)
+    {
+        maxStackSize = 16;
+    }
+
+    /*@Override*/
+    bool useOn(ItemInstance* instance, Player* player, Level* level, int x, int y, int z, int face, float clickX, float clickY, float clickZ) {
+        if (face == 0) return false;
+        if (!level->getMaterial(x, y, z)->isSolid()) return false;
+
+        if (face == 1) y++;
+
+        if (face == 2) z--;
+        if (face == 3) z++;
+        if (face == 4) x--;
+        if (face == 5) x++;
+
+        //if (!player->mayUseItemAt(x, y, z, face, instance)) return false;
+        if (!Tile::sign->mayPlace(level, x, y, z)) return false;
+
+        if (face == 1) {
+            int rot = Mth::floor(((player->yRot + 180) * 16) / 360 + 0.5f) & 15;
+            level->setTileAndData(x, y, z, Tile::sign->id, rot);
+        } else {
+            level->setTileAndData(x, y, z, Tile::wallSign->id, face);
+        }
+
+        instance->count--;
+        SignTileEntity* ste = (SignTileEntity*) level->getTileEntity(x, y, z);
+        if (ste != NULL) player->openTextEdit(ste);
+        return true;
+    }
+};
+
+#endif /*NET_MINECRAFT_WORLD_ITEM__SignItem_H__*/