init

src/main/java/com/jenny/xp2items/items/xpTalisman.java

@@ -0,0 +1,76 @@
+package com.jenny.xp2items.items;
+
+import com.jenny.xp2items.config.ServerConfig;
+import net.minecraft.server.commands.ExperienceCommand;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.util.Mth;
+import net.minecraft.world.InteractionHand;
+import net.minecraft.world.InteractionResult;
+import net.minecraft.world.entity.item.ItemEntity;
+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;
+import net.minecraftforge.registries.ForgeRegistries;
+import org.apache.logging.log4j.core.jmx.Server;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+
+public class xpTalisman extends Item {
+    public xpTalisman(Properties properties) {
+        super(properties);
+    }
+
+    @Override
+    public @NotNull InteractionResult use(@NotNull Level level, @NotNull Player player, @NotNull InteractionHand interactionHand) {
+        if (!level.isClientSide) {
+            if (ServerConfig.C_XP_AMOUNT.get() > 0) { // xp amount mode
+                spawnItem(level, (ServerPlayer) player);
+            } else { // xp level mode
+                spawnItemLevels(level, (ServerPlayer) player);
+            }
+        }
+        return InteractionResult.SUCCESS;
+    }
+
+    private static void spawnItem(Level level, ServerPlayer player) {
+        List<Item> itemList = ForgeRegistries.ITEMS.getValues().stream().toList();
+        int xpNeeded = ServerConfig.C_XP_AMOUNT.get();
+        System.out.println(getPlayerXP(player));
+        while (true) {
+            int expLevelBefore = player.experienceLevel;
+            float expProgressBefore = player.experienceProgress;
+            player.giveExperiencePoints(-xpNeeded);
+            if (getPlayerXP(player) == 0 && player.experienceLevel == 0) {
+                player.experienceLevel = expLevelBefore;
+                player.experienceProgress = expProgressBefore;
+                break;
+            } else {
+                System.out.println("item dropped");
+                Item item = itemList.get(level.getRandom().nextInt(0, itemList.size()));
+                level.addFreshEntity(new ItemEntity(level, player.getX(), player.getY(), player.getZ(), new ItemStack(item)));
+            }
+        }
+    }
+
+    private static int getPlayerXP(ServerPlayer player) {
+        return Mth.floor(player.experienceProgress * (float) player.getXpNeededForNextLevel());
+    }
+
+    private static void spawnItemLevels(Level level, ServerPlayer player) {
+        List<Item> itemList = ForgeRegistries.ITEMS.getValues().stream().toList();
+        int itemsPerLevel = ServerConfig.C_ITEM_AMOUNT.get();
+        int xpPoints = getPlayerXP(player);
+        for (int i = 1; i <= player.experienceLevel; i++) {
+            for (int i2 = 1; i2 <= itemsPerLevel; i2++) {
+                System.out.println("item dropped");
+                Item item = itemList.get(level.getRandom().nextInt(0, itemList.size()));
+                level.addFreshEntity(new ItemEntity(level, player.getX(), player.getY(), player.getZ(), new ItemStack(item)));
+            }
+        }
+        player.setExperienceLevels(0);
+        player.setExperiencePoints(0);
+        player.giveExperiencePoints(xpPoints);
+    }
+}