From b691c43c44ff180d10e7d4a9afc83b98551ff586 Mon Sep 17 00:00:00 2001
From: daoge_cmd <3523206925@qq.com>
Date: Sun, 1 Mar 2026 12:16:08 +0800
Subject: Initial commit

---
 Minecraft.Client/DemoMode.cpp | 125 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 Minecraft.Client/DemoMode.cpp

(limited to 'Minecraft.Client/DemoMode.cpp')

diff --git a/Minecraft.Client/DemoMode.cpp b/Minecraft.Client/DemoMode.cpp
new file mode 100644
index 00000000..3b24af7a
--- /dev/null
+++ b/Minecraft.Client/DemoMode.cpp
@@ -0,0 +1,125 @@
+#include "stdafx.h"
+#include "DemoMode.h"
+#include "..\Minecraft.World\net.minecraft.world.level.h"
+
+DemoMode::DemoMode(Minecraft *minecraft) : SurvivalMode(minecraft)
+{
+	demoHasEnded = false;
+    demoEndedReminder = 0;
+}
+
+void DemoMode::tick()
+{
+    SurvivalMode::tick();
+
+/* 4J - TODO - seems unlikely we need this demo mode anyway
+    __int64 time = minecraft->level->getTime();
+    __int64 day = (time / Level::TICKS_PER_DAY) + 1;
+
+    demoHasEnded = (time > (500 + Level::TICKS_PER_DAY * DEMO_DAYS));
+    if (demoHasEnded)
+	{
+        demoEndedReminder++;
+    }
+
+    if ((time % Level::TICKS_PER_DAY) == 500)
+	{
+        if (day <= (DEMO_DAYS + 1))
+		{
+            minecraft->gui->displayClientMessage(L"demo.day." + _toString<__int64>(day));
+        }
+    }
+	else if (day == 1)
+	{
+        Options *options = minecraft->options;
+        wstring message;
+
+        if (time == 100) {
+            minecraft.gui.addMessage("Seed: " + minecraft.level.getSeed());
+            message = language.getElement("demo.help.movement");
+            message = String.format(message, Keyboard.getKeyName(options.keyUp.key), Keyboard.getKeyName(options.keyLeft.key), Keyboard.getKeyName(options.keyDown.key),
+                    Keyboard.getKeyName(options.keyRight.key));
+        } else if (time == 175) {
+            message = language.getElement("demo.help.jump");
+            message = String.format(message, Keyboard.getKeyName(options.keyJump.key));
+        } else if (time == 250) {
+            message = language.getElement("demo.help.inventory");
+            message = String.format(message, Keyboard.getKeyName(options.keyBuild.key));
+        }
+        if (message != null) {
+            minecraft.gui.addMessage(message);
+        }
+    } else if (day == DEMO_DAYS) {
+        if ((time % Level.TICKS_PER_DAY) == 22000) {
+            minecraft.gui.displayClientMessage("demo.day.warning");
+        }
+    }
+*/
+}
+
+void DemoMode::outputDemoReminder()
+{
+/* 4J - TODO
+    if (demoEndedReminder > 100) {
+        minecraft.gui.displayClientMessage("demo.reminder");
+        demoEndedReminder = 0;
+    }
+	*/
+}
+
+void DemoMode::startDestroyBlock(int x, int y, int z, int face)
+{
+    if (demoHasEnded)
+	{
+        outputDemoReminder();
+        return;
+    }
+    SurvivalMode::startDestroyBlock(x, y, z, face);
+}
+
+void DemoMode::continueDestroyBlock(int x, int y, int z, int face)
+{
+    if (demoHasEnded)
+	{
+        return;
+    }
+    SurvivalMode::continueDestroyBlock(x, y, z, face);
+}
+
+bool DemoMode::destroyBlock(int x, int y, int z, int face)
+{
+    if (demoHasEnded)
+	{
+        return false;
+    }
+    return SurvivalMode::destroyBlock(x, y, z, face);
+}
+
+bool DemoMode::useItem(shared_ptr<Player> player, Level *level, shared_ptr<ItemInstance> item)
+{
+    if (demoHasEnded)
+	{
+        outputDemoReminder();
+        return false;
+    }
+    return SurvivalMode::useItem(player, level, item);
+}
+
+bool DemoMode::useItemOn(shared_ptr<Player> player, Level *level, shared_ptr<ItemInstance> item, int x, int y, int z, int face)
+{
+    if (demoHasEnded) {
+        outputDemoReminder();
+        return false;
+    }
+    return SurvivalMode::useItemOn(player, level, item, x, y, z, face);
+}
+
+void DemoMode::attack(shared_ptr<Player> player, shared_ptr<Entity> entity)
+{
+    if (demoHasEnded)
+	{
+        outputDemoReminder();
+        return;
+    }
+    SurvivalMode::attack(player, entity);
+}
-- 
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