src/main/java/me/xmrvizzy/skyblocker/mixin/ChatScreenMixin.java


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package me.xmrvizzy.skyblocker.mixin;

import net.minecraft.client.gui.screen.ChatScreen;
import net.minecraft.client.gui.screen.Screen;
import net.minecraft.client.gui.widget.TextFieldWidget;
import net.minecraft.text.Text;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;

@Mixin(ChatScreen.class)
public class ChatScreenMixin extends Screen {

    @Shadow protected TextFieldWidget chatField;

    protected ChatScreenMixin(Text title) {
        super(title);
    }

    @Inject(method = "keyPressed", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/MinecraftClient;openScreen(Lnet/minecraft/client/gui/screen/Screen;)V", ordinal = 1), cancellable = true)
    public void keyPressed(int keyCode, int scanCode, int modifiers, CallbackInfoReturnable<Boolean> cir) {
        String[] split = this.chatField.getText().trim().toLowerCase().split(" ");
        if (split.length > 0 && split[0].contentEquals("/skb")) {
            cir.setReturnValue(true);
        }
    }
}