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ItemSlotSH.java
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ItemSlotSH.java
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package com.cleanroommc.modularui.sync;
import com.cleanroommc.modularui.api.sync.SyncHandler;
import com.cleanroommc.modularui.utils.MouseData;
import com.cleanroommc.modularui.widgets.slot.ICustomSlot;
import com.cleanroommc.modularui.widgets.slot.SlotCustomSlot;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import net.minecraft.network.PacketBuffer;
import net.minecraftforge.items.IItemHandlerModifiable;
import net.minecraftforge.items.ItemStackHandler;
import org.jetbrains.annotations.NotNull;
import java.io.IOException;
import java.util.function.Predicate;
/**
* This does NOT sync items between server and client. It makes sure there is a
* mc slot in the container class, which will handle syncing.
* This will also handle interaction in case this is a phantom slot.
*/
public class ItemSlotSH extends SyncHandler {
private final SlotCustomSlot customSlot;
private final Slot slot;
private Predicate<ItemStack> filter;
private String slotGroup;
private boolean phantom = false;
private ItemStack lastStoredPhantomItem = ItemStack.EMPTY;
public static ItemSlotSH phantom(Slot slot) {
return new ItemSlotSH(slot).phantom(true);
}
public static ItemSlotSH phantom(IItemHandlerModifiable itemHandler, int index) {
return new ItemSlotSH(itemHandler, index).phantom(true);
}
public static ItemSlotSH phantom(int slotLimit, Predicate<ItemStack> filter) {
ItemStackHandler itemStackHandler = new ItemStackHandler(1) {
@Override
public int getSlotLimit(int slot) {
return slotLimit;
}
@Override
public boolean isItemValid(int slot, @NotNull ItemStack stack) {
return filter == null || filter.test(stack);
}
};
return phantom(itemStackHandler, 0);
}
public static ItemSlotSH phantom(int slotLimit) {
return phantom(slotLimit, null);
}
public static ItemSlotSH phantom() {
return phantom(64, null);
}
public ItemSlotSH(Slot slot) {
this.slot = slot;
this.customSlot = slot instanceof SlotCustomSlot ? (SlotCustomSlot) slot : null;
}
public ItemSlotSH(IItemHandlerModifiable itemHandler, int index) {
this(new SlotCustomSlot(itemHandler, index, 0, 0));
}
public ItemSlotSH(IInventory itemHandler, int index) {
this(new Slot(itemHandler, index, 0, 0));
}
@Override
public void init(String key, GuiSyncHandler syncHandler) {
super.init(key, syncHandler);
syncHandler.getContainer().registerSlot(this);
}
@Override
public void readOnClient(int id, PacketBuffer buf) {
if (id == 4) {
setEnabled(buf.readBoolean(), false);
}
}
@Override
public void readOnServer(int id, PacketBuffer buf) throws IOException {
if (id == 2) {
phantomClick(MouseData.readPacket(buf));
} else if (id == 3) {
phantomScroll(MouseData.readPacket(buf));
} else if (id == 4) {
setEnabled(buf.readBoolean(), false);
} else if (id == 5) {
ItemStack stack = buf.readItemStack();
this.slot.putStack(stack);
}
}
protected void phantomClick(MouseData mouseData) {
ItemStack cursorStack = getSyncHandler().getCursorItem();
ItemStack slotStack = getSlot().getStack();
ItemStack stackToPut;
if (slotStack.isEmpty()) {
if (cursorStack.isEmpty()) {
if (mouseData.mouseButton == 1 && !this.lastStoredPhantomItem.isEmpty()) {
stackToPut = this.lastStoredPhantomItem.copy();
} else {
return;
}
} else {
stackToPut = cursorStack.copy();
}
if (mouseData.mouseButton == 1) {
stackToPut.setCount(1);
}
slot.putStack(stackToPut);
this.lastStoredPhantomItem = stackToPut.copy();
} else {
if (mouseData.mouseButton == 0) {
if (mouseData.shift) {
this.slot.putStack(ItemStack.EMPTY);
} else {
incrementStackCount(-1);
}
} else if (mouseData.mouseButton == 1) {
incrementStackCount(1);
}
}
}
protected void phantomScroll(MouseData mouseData) {
ItemStack currentItem = this.slot.getStack();
int amount = mouseData.mouseButton;
if (mouseData.shift) {
amount *= 4;
}
if (mouseData.ctrl) {
amount *= 16;
}
if (mouseData.alt) {
amount *= 64;
}
if (amount > 0 && currentItem.isEmpty() && !lastStoredPhantomItem.isEmpty()) {
ItemStack stackToPut = this.lastStoredPhantomItem.copy();
stackToPut.setCount(amount);
this.slot.putStack(stackToPut);
} else {
incrementStackCount(amount);
}
}
public void incrementStackCount(int amount) {
ItemStack stack = getSlot().getStack();
if (stack.isEmpty()) {
return;
}
int oldAmount = stack.getCount();
if (amount < 0) {
amount = Math.max(0, oldAmount + amount);
} else {
if (Integer.MAX_VALUE - amount < oldAmount) {
amount = Integer.MAX_VALUE;
} else {
int maxSize = getSlot().getSlotStackLimit();
if ((this.customSlot == null || !this.customSlot.isIgnoreMaxStackSize()) && stack.getMaxStackSize() < maxSize) {
maxSize = stack.getMaxStackSize();
}
amount = Math.min(oldAmount + amount, maxSize);
}
}
if (oldAmount != amount) {
stack.setCount(amount);
getSlot().onSlotChanged();
}
}
public void setEnabled(boolean enabled, boolean sync) {
if (this.slot instanceof ICustomSlot) {
((ICustomSlot) this.slot).setEnabled(enabled);
if (sync) {
sync(4, buffer -> buffer.writeBoolean(enabled));
}
}
}
public void updateFromClient(ItemStack stack) {
syncToServer(5, buf -> buf.writeItemStack(stack));
}
public Slot getSlot() {
return slot;
}
public boolean isItemValid(ItemStack itemStack) {
return getSlot().isItemValid(itemStack) && (this.filter == null || this.filter.test(itemStack));
}
public boolean isPhantom() {
return phantom;
}
public String getSlotGroup() {
return slotGroup;
}
public ItemSlotSH filter(Predicate<ItemStack> filter) {
this.filter = filter;
return this;
}
public ItemSlotSH phantom(boolean phantom) {
this.phantom = phantom;
return this;
}
public ItemSlotSH ignoreMaxStackSize(boolean ignore) {
if (this.customSlot == null) {
throw new IllegalStateException("Slot must be a SlotCustomSlot");
}
this.customSlot.setIgnoreMaxStackSize(ignore);
return this;
}
public ItemSlotSH slotGroup(String name) {
this.slotGroup = name;
return this;
}
}