Add Chat / Pastes / Formatting (#682)

* Initial fixes for ContainerSetSlotPacket and CraftItemPacket * Chat: paste, history, § formatting, 1-9 block when open (Windows64) Made-with: Cursor * static_cast refactor
2026-03-06 09:52:28 -06:00
parent 1755cd58be
commit ea65542c1b
16 changed files with 456 additions and 150 deletions
--- a/Minecraft.Client/ChatScreen.cpp
+++ b/Minecraft.Client/ChatScreen.cpp
@@ -1,14 +1,27 @@
 #include "stdafx.h"
 #include "ChatScreen.h"
+#include "ClientConnection.h"
+#include "Font.h"
 #include "MultiplayerLocalPlayer.h"
 #include "..\Minecraft.World\SharedConstants.h"
 #include "..\Minecraft.World\StringHelpers.h"
+#include "..\Minecraft.World\ChatPacket.h"

 const wstring ChatScreen::allowedChars = SharedConstants::acceptableLetters;
+vector<wstring> ChatScreen::s_chatHistory;
+int ChatScreen::s_historyIndex = -1;
+wstring ChatScreen::s_historyDraft;
+
+bool ChatScreen::isAllowedChatChar(wchar_t c)
+{
+	return c >= 0x20 && (c == L'\u00A7' || allowedChars.empty() || allowedChars.find(c) != wstring::npos);
+}

 ChatScreen::ChatScreen()
 {
 	frame = 0;
+	cursorIndex = 0;
+	s_historyIndex = -1;
 }

 void ChatScreen::init()
@@ -24,6 +37,50 @@ void ChatScreen::removed()
 void ChatScreen::tick()
 {
 	frame++;
+	if (cursorIndex > static_cast<int>(message.length()))
+		cursorIndex = static_cast<int>(message.length());
+}
+
+void ChatScreen::handlePasteRequest()
+{
+	wstring pasted = Screen::getClipboard();
+	for (size_t i = 0; i < pasted.length() && static_cast<int>(message.length()) < SharedConstants::maxChatLength; i++)
+	{
+		if (isAllowedChatChar(pasted[i]))
+		{
+			message.insert(cursorIndex, 1, pasted[i]);
+			cursorIndex++;
+		}
+	}
+}
+
+void ChatScreen::applyHistoryMessage()
+{
+	message = s_historyIndex >= 0 ? s_chatHistory[s_historyIndex] : s_historyDraft;
+	cursorIndex = static_cast<int>(message.length());
+}
+
+void ChatScreen::handleHistoryUp()
+{
+	if (s_chatHistory.empty()) return;
+	if (s_historyIndex == -1)
+	{
+		s_historyDraft = message;
+		s_historyIndex = static_cast<int>(s_chatHistory.size()) - 1;
+	}
+	else if (s_historyIndex > 0)
+		s_historyIndex--;
+	applyHistoryMessage();
+}
+
+void ChatScreen::handleHistoryDown()
+{
+	if (s_chatHistory.empty()) return;
+	if (s_historyIndex < static_cast<int>(s_chatHistory.size()) - 1)
+		s_historyIndex++;
+	else
+		s_historyIndex = -1;
+	applyHistoryMessage();
 }

 void ChatScreen::keyPressed(wchar_t ch, int eventKey)
@@ -35,31 +92,67 @@ void ChatScreen::keyPressed(wchar_t ch, int eventKey)
    }
    if (eventKey == Keyboard::KEY_RETURN)
 	{
-        wstring msg = trimString(message);
-        if (msg.length() > 0)
+        wstring trim = trimString(message);
+        if (trim.length() > 0)
 		{
-            wstring trim = trimString(message);
            if (!minecraft->handleClientSideCommand(trim))
 			{
-                minecraft->player->chat(trim);
+                MultiplayerLocalPlayer* mplp = dynamic_cast<MultiplayerLocalPlayer*>(minecraft->player.get());
+                if (mplp && mplp->connection)
+                    mplp->connection->send(shared_ptr<ChatPacket>(new ChatPacket(trim)));
+            }
+            if (s_chatHistory.empty() || s_chatHistory.back() != trim)
+			{
+                s_chatHistory.push_back(trim);
+                if (s_chatHistory.size() > CHAT_HISTORY_MAX)
+                    s_chatHistory.erase(s_chatHistory.begin());
            }
        }
        minecraft->setScreen(NULL);
        return;
    }
-    if (eventKey == Keyboard::KEY_BACK && message.length() > 0) message = message.substr(0, message.length() - 1);
-    if (allowedChars.find(ch) >= 0 && message.length() < SharedConstants::maxChatLength)
+    if (eventKey == Keyboard::KEY_UP)   { handleHistoryUp();   return; }
+    if (eventKey == Keyboard::KEY_DOWN) { handleHistoryDown(); return; }
+    if (eventKey == Keyboard::KEY_LEFT)
 	{
-        message += ch;
+        if (cursorIndex > 0)
+            cursorIndex--;
+        return;
+    }
+    if (eventKey == Keyboard::KEY_RIGHT)
+	{
+        if (cursorIndex < static_cast<int>(message.length()))
+            cursorIndex++;
+        return;
+    }
+    if (eventKey == Keyboard::KEY_BACK && cursorIndex > 0)
+	{
+        message.erase(cursorIndex - 1, 1);
+        cursorIndex--;
+        return;
+    }
+    if (isAllowedChatChar(ch) && static_cast<int>(message.length()) < SharedConstants::maxChatLength)
+	{
+        message.insert(cursorIndex, 1, ch);
+        cursorIndex++;
    }
-
 }

 void ChatScreen::render(int xm, int ym, float a)
 {
    fill(2, height - 14, width - 2, height - 2, 0x80000000);
-    drawString(font, L"> " + message + (frame / 6 % 2 == 0 ? L"_" : L""), 4, height - 12, 0xe0e0e0);
-
+    const wstring prefix = L"> ";
+    int x = 4;
+    drawString(font, prefix, x, height - 12, 0xe0e0e0);
+    x += font->width(prefix);
+    wstring beforeCursor = message.substr(0, cursorIndex);
+    wstring afterCursor = message.substr(cursorIndex);
+    drawStringLiteral(font, beforeCursor, x, height - 12, 0xe0e0e0);
+    x += font->widthLiteral(beforeCursor);
+    if (frame / 6 % 2 == 0)
+        drawString(font, L"_", x, height - 12, 0xe0e0e0);
+    x += font->width(L"_");
+    drawStringLiteral(font, afterCursor, x, height - 12, 0xe0e0e0);
    Screen::render(xm, ym, a);
 }

@@ -71,13 +164,15 @@ void ChatScreen::mouseClicked(int x, int y, int buttonNum)
 		{
 			if (message.length() > 0 && message[message.length()-1]!=L' ')
 			{
-                message += L" ";
+                message = message.substr(0, cursorIndex) + L" " + message.substr(cursorIndex);
+                cursorIndex++;
            }
-            message += minecraft->gui->selectedName;
-            unsigned int maxLength = SharedConstants::maxChatLength;
-            if (message.length() > maxLength)
+            size_t nameLen = minecraft->gui->selectedName.length();
+            size_t insertLen = (message.length() + nameLen <= SharedConstants::maxChatLength) ? nameLen : (SharedConstants::maxChatLength - message.length());
+            if (insertLen > 0)
 			{
-                message = message.substr(0, maxLength);
+                message = message.substr(0, cursorIndex) + minecraft->gui->selectedName.substr(0, insertLen) + message.substr(cursorIndex);
+                cursorIndex += static_cast<int>(insertLen);
            }
        }
 		else
@@ -85,5 +180,4 @@ void ChatScreen::mouseClicked(int x, int y, int buttonNum)
            Screen::mouseClicked(x, y, buttonNum);
        }
    }
-
 }
--- a/Minecraft.Client/ChatScreen.h
+++ b/Minecraft.Client/ChatScreen.h
@@ -1,21 +1,33 @@
 #pragma once
 #include "Screen.h"
+#include <vector>
 using namespace std;

 class ChatScreen : public Screen
 {
 protected:
 	wstring message;
+	int cursorIndex;
+	void applyHistoryMessage();
+
 private:
 	int frame;
+	static const size_t CHAT_HISTORY_MAX = 100;
+	static std::vector<wstring> s_chatHistory;
+	static int s_historyIndex;
+	static wstring s_historyDraft;
+	static const wstring allowedChars;
+	static bool isAllowedChatChar(wchar_t c);

 public:
-	ChatScreen();	//4J added
+	ChatScreen();
 	virtual void init();
-    virtual void removed();
-    virtual void tick();
-private:
-	static const wstring allowedChars;
+	virtual void removed();
+	virtual void tick();
+	virtual void handlePasteRequest();
+	virtual void handleHistoryUp();
+	virtual void handleHistoryDown();
+
 protected:
 	void keyPressed(wchar_t ch, int eventKey);
 public:
--- a/Minecraft.Client/ClientConnection.cpp
+++ b/Minecraft.Client/ClientConnection.cpp
@@ -1441,6 +1441,9 @@ void ClientConnection::handleChat(shared_ptr<ChatPacket> packet)

 	switch(packet->m_messageType)
 	{
+	case ChatPacket::e_ChatCustom:
+		message = (packet->m_stringArgs.size() >= 1) ? packet->m_stringArgs[0] : L"";
+		break;
 	case ChatPacket::e_ChatBedOccupied:
 		message = app.GetString(IDS_TILE_BED_OCCUPIED);
 		break;
--- a/Minecraft.Client/Common/UI/UIComponent_Chat.cpp
+++ b/Minecraft.Client/Common/UI/UIComponent_Chat.cpp
@@ -55,10 +55,16 @@ void UIComponent_Chat::handleTimerComplete(int id)
 			float opacity = pGui->getOpacity(m_iPad, i);
 			if( opacity > 0 )
 			{
+#ifdef _WINDOWS64
+				// Chat drawn by Gui::render with color codes. Hides Iggy chat to avoid double chats.
+				m_controlLabelBackground[i].setOpacity(0);
+				m_labelChatText[i].setOpacity(0);
+				m_labelChatText[i].setLabel(L"");
+#else
 				m_controlLabelBackground[i].setOpacity(opacity);
 				m_labelChatText[i].setOpacity(opacity);
 				m_labelChatText[i].setLabel( pGui->getMessage(m_iPad,i) );
-
+#endif
 				anyVisible = true;
 			}
 			else
--- a/Minecraft.Client/Common/UI/UIScene_HUD.cpp
+++ b/Minecraft.Client/Common/UI/UIScene_HUD.cpp
@@ -753,10 +753,16 @@ void UIScene_HUD::handleTimerComplete(int id)
 			float opacity = pGui->getOpacity(m_iPad, i);
 			if( opacity > 0 )
 			{
+#ifdef _WINDOWS64
+				// Chat drawn by Gui::render with color codes. Hides Iggy chat to avoid double chats.
+				m_controlLabelBackground[i].setOpacity(0);
+				m_labelChatText[i].setOpacity(0);
+				m_labelChatText[i].setLabel(L"");
+#else
 				m_controlLabelBackground[i].setOpacity(opacity);
 				m_labelChatText[i].setOpacity(opacity);
 				m_labelChatText[i].setLabel( pGui->getMessagesCount(m_iPad) ? pGui->getMessage(m_iPad,i) : L"" );
-
+#endif
 				anyVisible = true;
 			}
 			else
--- a/Minecraft.Client/Font.cpp
+++ b/Minecraft.Client/Font.cpp
@@ -21,6 +21,10 @@ Font::Font(Options *options, const wstring& name, Textures* textures, bool enfor
 	enforceUnicodeSheet = false;
 	bidirectional = false;
 	xPos = yPos = 0.0f;
+	m_bold = false;
+	m_italic = false;
+	m_underline = false;
+	m_strikethrough = false;

 	// Set up member variables
 	m_cols = cols;
@@ -126,6 +130,22 @@ Font::~Font()
 }
 #endif

+void Font::renderStyleLine(float x0, float y0, float x1, float y1)
+{
+	Tesselator* t = Tesselator::getInstance();
+	float u = 0.0f, v = 0.0f;
+	t->begin();
+	t->tex(u, v);
+	t->vertex(x0, y1, 0.0f);
+	t->tex(u, v);
+	t->vertex(x1, y1, 0.0f);
+	t->tex(u, v);
+	t->vertex(x1, y0, 0.0f);
+	t->tex(u, v);
+	t->vertex(x0, y0, 0.0f);
+	t->end();
+}
+
 void Font::renderCharacter(wchar_t c)
 {
 	float xOff = c % m_cols * m_charWidth;
@@ -137,37 +157,47 @@ void Font::renderCharacter(wchar_t c)
 	float fontWidth = m_cols * m_charWidth;
 	float fontHeight = m_rows * m_charHeight;

-    Tesselator *t = Tesselator::getInstance();
-	// 4J Stu - Changed to a quad so that we can use within a command buffer
-#if 1
+	const float shear = m_italic ? (height * 0.25f) : 0.0f;
+	float x0 = xPos, x1 = xPos + width + shear;
+	float y0 = yPos, y1 = yPos + height;
+
+	Tesselator *t = Tesselator::getInstance();
 	t->begin();
 	t->tex(xOff / fontWidth, (yOff + 7.99f) / fontHeight);
-	t->vertex(xPos, yPos + height, 0.0f);
-
+	t->vertex(x0, y1, 0.0f);
 	t->tex((xOff + width) / fontWidth, (yOff + 7.99f) / fontHeight);
-	t->vertex(xPos + width, yPos + height, 0.0f);
-
+	t->vertex(x1, y1, 0.0f);
 	t->tex((xOff + width) / fontWidth, yOff / fontHeight);
-	t->vertex(xPos + width, yPos, 0.0f);
-
+	t->vertex(x1, y0, 0.0f);
 	t->tex(xOff / fontWidth, yOff / fontHeight);
-	t->vertex(xPos, yPos, 0.0f);
-
+	t->vertex(x0, y0, 0.0f);
 	t->end();
-#else
-	t->begin(GL_TRIANGLE_STRIP);
-	t->tex(xOff / 128.0F, yOff / 128.0F);
-	t->vertex(xPos, yPos, 0.0f);
-	t->tex(xOff / 128.0F, (yOff + 7.99f) / 128.0F);
-	t->vertex(xPos, yPos + 7.99f, 0.0f);
-	t->tex((xOff + width) / 128.0F, yOff / 128.0F);
-	t->vertex(xPos + width, yPos, 0.0f);
-	t->tex((xOff + width) / 128.0F, (yOff + 7.99f) / 128.0F);
-	t->vertex(xPos + width, yPos + 7.99f, 0.0f);
-	t->end();
-#endif

-	xPos += (float) charWidths[c];
+	if (m_bold)
+	{
+		float dx = 1.0f;
+		t->begin();
+		t->tex(xOff / fontWidth, (yOff + 7.99f) / fontHeight);
+		t->vertex(x0 + dx, y1, 0.0f);
+		t->tex((xOff + width) / fontWidth, (yOff + 7.99f) / fontHeight);
+		t->vertex(x1 + dx, y1, 0.0f);
+		t->tex((xOff + width) / fontWidth, yOff / fontHeight);
+		t->vertex(x1 + dx, y0, 0.0f);
+		t->tex(xOff / fontWidth, yOff / fontHeight);
+		t->vertex(x0 + dx, y0, 0.0f);
+		t->end();
+	}
+
+	if (m_underline)
+		renderStyleLine(x0, y1 - 1.0f, xPos + static_cast<float>(charWidths[c]), y1);
+
+	if (m_strikethrough)
+	{
+		float mid = y0 + height * 0.5f;
+		renderStyleLine(x0, mid - 0.5f, xPos + static_cast<float>(charWidths[c]), mid + 0.5f);
+	}
+
+	xPos += static_cast<float>(charWidths[c]);
 }

 void Font::drawShadow(const wstring& str, int x, int y, int color)
@@ -176,6 +206,26 @@ void Font::drawShadow(const wstring& str, int x, int y, int color)
    draw(str, x, y, color, false);
 }

+void Font::drawShadowLiteral(const wstring& str, int x, int y, int color)
+{
+	int shadowColor = (color & 0xFCFCFC) >> 2 | (color & 0xFF000000);
+	drawLiteral(str, x + 1, y + 1, shadowColor);
+	drawLiteral(str, x, y, color);
+}
+
+void Font::drawLiteral(const wstring& str, int x, int y, int color)
+{
+	if (str.empty()) return;
+	if ((color & 0xFC000000) == 0) color |= 0xFF000000;
+	textures->bindTexture(m_textureLocation);
+	glColor4f((color >> 16 & 255) / 255.0F, (color >> 8 & 255) / 255.0F, (color & 255) / 255.0F, (color >> 24 & 255) / 255.0F);
+	xPos = static_cast<float>(x);
+	yPos = static_cast<float>(y);
+	wstring cleanStr = sanitize(str);
+	for (size_t i = 0; i < cleanStr.length(); ++i)
+		renderCharacter(cleanStr.at(i));
+}
+
 void Font::drawShadowWordWrap(const wstring &str, int x, int y, int w, int color, int h)
 {
 	drawWordWrapInternal(str, x + 1, y + 1, w, color, true, h);
@@ -193,24 +243,38 @@ wstring Font::reorderBidi(const wstring &str)
 	return str;
 }

+static bool isSectionFormatCode(wchar_t ca)
+{
+	if ((ca >= L'0' && ca <= L'9') || (ca >= L'a' && ca <= L'f') || (ca >= L'A' && ca <= L'F'))
+		return true;
+	wchar_t l = static_cast<wchar_t>(ca | 32);
+	return l == L'l' || l == L'o' || l == L'n' || l == L'm' || l == L'r' || l == L'k';
+}
+
 void Font::draw(const wstring &str, bool dropShadow)
 {
 	// Bind the texture
 	textures->bindTexture(m_textureLocation);

 	bool noise = false;
+	m_bold = m_italic = m_underline = m_strikethrough = false;
 	wstring cleanStr = sanitize(str);

-	for (int i = 0; i < (int)cleanStr.length(); ++i)
+	for (int i = 0; i < static_cast<int>(cleanStr.length()); ++i)
 	{
 		// Map character
 		wchar_t c = cleanStr.at(i);

 		if (c == 167 && i + 1 < cleanStr.length())
 		{
-			// 4J - following block was:
-			// int colorN = L"0123456789abcdefk".indexOf(str.toLowerCase().charAt(i + 1));
 			wchar_t ca = cleanStr[i+1];
+			if (!isSectionFormatCode(ca))
+			{
+				renderCharacter(167);
+				renderCharacter(ca);
+				i += 1;
+				continue;
+			}
 			int colorN = 16;
 			if(( ca >= L'0' ) && (ca <= L'9')) colorN = ca - L'0';
 			else if(( ca >= L'a' ) && (ca <= L'f')) colorN = (ca - L'a') + 10;
@@ -218,7 +282,13 @@ void Font::draw(const wstring &str, bool dropShadow)

 			if (colorN == 16)
 			{
-				noise = true;
+				wchar_t l = static_cast<wchar_t>(ca | 32);
+				if (l == L'l') m_bold = true;
+				else if (l == L'o') m_italic = true;
+				else if (l == L'n') m_underline = true;
+				else if (l == L'm') m_strikethrough = true;
+				else if (l == L'r') m_bold = m_italic = m_underline = m_strikethrough = noise = false;
+				else if (l == L'k') noise = true;
 			}
 			else
 			{
@@ -280,20 +350,34 @@ int Font::width(const wstring& str)
 	{
 		wchar_t c = cleanStr.at(i);

-		if(c == 167)
+		if (c == 167)
 		{
-			// Ignore the character used to define coloured text
-			++i;
+			if (i + 1 < cleanStr.length() && isSectionFormatCode(cleanStr[i+1]))
+				++i;
+			else
+			{
+				len += charWidths[167];
+				if (i + 1 < cleanStr.length())
+					len += charWidths[static_cast<unsigned>(cleanStr[++i])];
+			}
 		}
 		else
-		{
 			len += charWidths[c];
-		}
 	}

 	return len;
 }

+int Font::widthLiteral(const wstring& str)
+{
+	wstring cleanStr = sanitize(str);
+	if (cleanStr == L"") return 0;
+	int len = 0;
+	for (size_t i = 0; i < cleanStr.length(); ++i)
+		len += charWidths[static_cast<unsigned>(cleanStr.at(i))];
+	return len;
+}
+
 wstring Font::sanitize(const wstring& str)
 {
 	wstring sb = str;
@@ -467,7 +551,7 @@ void Font::setBidirectional(bool bidirectional)

 bool Font::AllCharactersValid(const wstring &str)
 {
-	for (int i = 0; i < (int)str.length(); ++i)
+	for (int i = 0; i < static_cast<int>(str.length()); ++i)
 	{
 		wchar_t c = str.at(i);

@@ -512,15 +596,15 @@ void Font::renderFakeCB(IntBuffer *ib)
 			float uo = (0.0f) / 128.0f;
 			float vo = (0.0f) / 128.0f;

-			t->vertexUV((float)(0), (float)( 0 + s), (float)( 0), (float)( ix / 128.0f + uo), (float)( (iy + s) / 128.0f + vo));
-			t->vertexUV((float)(0 + s), (float)( 0 + s), (float)( 0), (float)( (ix + s) / 128.0f + uo), (float)( (iy + s) / 128.0f + vo));
-			t->vertexUV((float)(0 + s), (float)( 0), (float)( 0), (float)( (ix + s) / 128.0f + uo), (float)( iy / 128.0f + vo));
-			t->vertexUV((float)(0), (float)( 0), (float)( 0), (float)( ix / 128.0f + uo), (float)( iy / 128.0f + vo));
+			t->vertexUV(static_cast<float>(0), static_cast<float>(0 + s), static_cast<float>(0), static_cast<float>(ix / 128.0f + uo), static_cast<float>((iy + s) / 128.0f + vo));
+			t->vertexUV(static_cast<float>(0 + s), static_cast<float>(0 + s), static_cast<float>(0), static_cast<float>((ix + s) / 128.0f + uo), static_cast<float>((iy + s) / 128.0f + vo));
+			t->vertexUV(static_cast<float>(0 + s), static_cast<float>(0), static_cast<float>(0), static_cast<float>((ix + s) / 128.0f + uo), static_cast<float>(iy / 128.0f + vo));
+			t->vertexUV(static_cast<float>(0), static_cast<float>(0), static_cast<float>(0), static_cast<float>(ix / 128.0f + uo), static_cast<float>(iy / 128.0f + vo));
 			// target.colorBlit(texture, x + xo, y, color, ix, iy,
 		// charWidths[chars[i]], 8);
 			t->end();

-			glTranslatef((float)charWidths[i], 0, 0);
+			glTranslatef(static_cast<float>(charWidths[i]), 0, 0);
 		}
 		else
 		{
--- a/Minecraft.Client/Font.h
+++ b/Minecraft.Client/Font.h
@@ -21,6 +21,12 @@ private:
 	float xPos;
 	float yPos;

+	// § format state (bold, italic, underline, strikethrough); set during draw(), reset by §r
+	bool m_bold;
+	bool m_italic;
+	bool m_underline;
+	bool m_strikethrough;
+
 	bool enforceUnicodeSheet; // use unicode sheet for ascii
 	bool bidirectional; // use bidi to flip strings

@@ -41,9 +47,11 @@ public:

 private:
 	void renderCharacter(wchar_t c); // 4J added
+	void renderStyleLine(float x0, float y0, float x1, float y1); // solid line for underline/strikethrough

 public:
    void drawShadow(const wstring& str, int x, int y, int color);
+	void drawShadowLiteral(const wstring& str, int x, int y, int color); // draw without interpreting § codes
 	void drawShadowWordWrap(const wstring &str, int x, int y, int w, int color, int h); // 4J Added h param
    void draw(const wstring &str, int x, int y, int color);
 	/**
@@ -58,11 +66,13 @@ private:

 	void draw(const wstring &str, bool dropShadow);
    void draw(const wstring& str, int x, int y, int color, bool dropShadow);
+	void drawLiteral(const wstring& str, int x, int y, int color); // no § parsing
 	int MapCharacter(wchar_t c); // 4J added
 	bool CharacterExists(wchar_t c); // 4J added

 public:
    int width(const wstring& str);
+	int widthLiteral(const wstring& str); // width without skipping § codes (for chat input)
    wstring sanitize(const wstring& str);
 	void drawWordWrap(const wstring &string, int x, int y, int w, int col, int h); // 4J Added h param

--- a/Minecraft.Client/Gui.cpp
+++ b/Minecraft.Client/Gui.cpp
@@ -971,15 +971,10 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glDisable(GL_ALPHA_TEST);

-// 4J Stu - We have moved the chat text to a xui
-#if 0
+#if defined(_WINDOWS64)
    glPushMatrix();
-	// 4J-PB we need to move this up a bit because we've moved the quick select
-	//glTranslatef(0, ((float)screenHeight) - 48, 0);
-    glTranslatef(0.0f, (float)(screenHeight - iSafezoneYHalf - iTooltipsYOffset - 16 - 3 + 22) - 24.0f, 0.0f);
-    // glScalef(1.0f / ssc.scale, 1.0f / ssc.scale, 1);
+    glTranslatef(0.0f, static_cast<float>(screenHeight - iSafezoneYHalf - iTooltipsYOffset - 16 - 3 + 22) - 24.0f, 0.0f);

-	// 4J-PB - we need gui messages for each of the possible 4 splitscreen players
 	if(bDisplayGui)
 	{
 		int iPad=minecraft->player->GetXboxPad();
@@ -993,23 +988,21 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
 				if (t < 0) t = 0;
 				if (t > 1) t = 1;
 				t = t * t;
-				int alpha = (int) (255 * t);
+				int alpha = static_cast<int>(255 * t);
 				if (isChatting) alpha = 255;

 				if (alpha > 0)
 				{
 					int x = iSafezoneXHalf+2;
-					int y = -((int)i) * 9;
+					int y = -(static_cast<int>(i)) * 9;
 					if(bTwoPlayerSplitscreen)
 					{
 						y+= iHeightOffset;
 					}

 					wstring msg = guiMessages[iPad][i].string;
-					// 4J-PB - fill the black bar across the whole screen, otherwise it looks odd due to the safe area
 					this->fill(0, y - 1, screenWidth/fScaleFactorWidth, y + 8, (alpha / 2) << 24);
 					glEnable(GL_BLEND);
-
 					font->drawShadow(msg, iSafezoneXHalf+4, y, 0xffffff + (alpha << 24));
 				}
 			}
--- a/Minecraft.Client/GuiComponent.cpp
+++ b/Minecraft.Client/GuiComponent.cpp
@@ -48,10 +48,10 @@ void GuiComponent::fill(int x0, int y0, int x1, int y1, int col)
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glColor4f(r, g, b, a);
    t->begin();
-    t->vertex((float)(x0), (float)( y1), (float)( 0));
-    t->vertex((float)(x1), (float)( y1), (float)( 0));
-    t->vertex((float)(x1), (float)( y0), (float)( 0));
-    t->vertex((float)(x0), (float)( y0), (float)( 0));
+    t->vertex(static_cast<float>(x0), static_cast<float>(y1), static_cast<float>(0));
+    t->vertex(static_cast<float>(x1), static_cast<float>(y1), static_cast<float>(0));
+    t->vertex(static_cast<float>(x1), static_cast<float>(y0), static_cast<float>(0));
+    t->vertex(static_cast<float>(x0), static_cast<float>(y0), static_cast<float>(0));
    t->end();
    glEnable(GL_TEXTURE_2D);
    glDisable(GL_BLEND);
@@ -77,11 +77,11 @@ void GuiComponent::fillGradient(int x0, int y0, int x1, int y1, int col1, int co
    Tesselator *t = Tesselator::getInstance();
    t->begin();
    t->color(r1, g1, b1, a1);
-    t->vertex((float)(x1), (float)( y0), blitOffset);
-    t->vertex((float)(x0), (float)( y0), blitOffset);
+    t->vertex(static_cast<float>(x1), static_cast<float>(y0), blitOffset);
+    t->vertex(static_cast<float>(x0), static_cast<float>(y0), blitOffset);
    t->color(r2, g2, b2, a2);
-    t->vertex((float)(x0), (float)( y1), blitOffset);
-    t->vertex((float)(x1), (float)( y1), blitOffset);
+    t->vertex(static_cast<float>(x0), static_cast<float>(y1), blitOffset);
+    t->vertex(static_cast<float>(x1), static_cast<float>(y1), blitOffset);
    t->end();

    glShadeModel(GL_FLAT);
@@ -105,6 +105,11 @@ void GuiComponent::drawString(Font *font, const wstring& str, int x, int y, int
 	font->drawShadow(str, x, y, color);
 }

+void GuiComponent::drawStringLiteral(Font *font, const wstring& str, int x, int y, int color)
+{
+	font->drawShadowLiteral(str, x, y, color);
+}
+
 void GuiComponent::blit(int x, int y, int sx, int sy, int w, int h)
 {
    float us = 1 / 256.0f;
@@ -117,20 +122,20 @@ void GuiComponent::blit(int x, int y, int sx, int sy, int w, int h)
 	const float extraShift = 0.75f;

 	// 4J - subtracting extraShift (actual screen pixels, so need to compensate for physical & game width) from each x & y coordinate to compensate for centre of pixels in directx vs openGL
-	float dx = ( extraShift * (float)Minecraft::GetInstance()->width ) / (float)Minecraft::GetInstance()->width_phys;
+	float dx = ( extraShift * static_cast<float>(Minecraft::GetInstance()->width) ) / static_cast<float>(Minecraft::GetInstance()->width_phys);
 	// 4J - Also factor in the scaling from gui coordinate space to the screen. This varies based on user-selected gui scale, and whether we are in a viewport mode or not
 	dx /= Gui::currentGuiScaleFactor;
 	float dy = extraShift / Gui::currentGuiScaleFactor;
 	// Ensure that the x/y, width and height are actually pixel aligned at our current scale factor - in particular, for split screen mode with the default (3X)
 	// scale, we have an overall scale factor of 3 * 0.5 = 1.5, and so any odd pixels won't align
-	float fx = (floorf((float)x * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
-	float fy = (floorf((float)y * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
-	float fw = (floorf((float)w * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
-	float fh = (floorf((float)h * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
+	float fx = (floorf(static_cast<float>(x) * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
+	float fy = (floorf(static_cast<float>(y) * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
+	float fw = (floorf(static_cast<float>(w) * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;
+	float fh = (floorf(static_cast<float>(h) * Gui::currentGuiScaleFactor)) / Gui::currentGuiScaleFactor;

-    t->vertexUV(fx + 0 - dx,  fy + fh - dy, (float)( blitOffset), (float)( (sx + 0) * us), (float)( (sy + h) * vs));
-    t->vertexUV(fx + fw - dx, fy + fh - dy, (float)( blitOffset), (float)( (sx + w) * us), (float)( (sy + h) * vs));
-    t->vertexUV(fx + fw - dx, fy + 0 - dy, (float)( blitOffset), (float)( (sx + w) * us), (float)( (sy + 0) * vs));
-    t->vertexUV(fx + 0 - dx,  fy + 0 - dy, (float)( blitOffset), (float)( (sx + 0) * us), (float)( (sy + 0) * vs));
+    t->vertexUV(fx + 0 - dx,  fy + fh - dy, static_cast<float>(blitOffset), static_cast<float>((sx + 0) * us), static_cast<float>((sy + h) * vs));
+    t->vertexUV(fx + fw - dx, fy + fh - dy, static_cast<float>(blitOffset), static_cast<float>((sx + w) * us), static_cast<float>((sy + h) * vs));
+    t->vertexUV(fx + fw - dx, fy + 0 - dy, static_cast<float>(blitOffset), static_cast<float>((sx + w) * us), static_cast<float>((sy + 0) * vs));
+    t->vertexUV(fx + 0 - dx,  fy + 0 - dy, static_cast<float>(blitOffset), static_cast<float>((sx + 0) * us), static_cast<float>((sy + 0) * vs));
    t->end();
 }
--- a/Minecraft.Client/GuiComponent.h
+++ b/Minecraft.Client/GuiComponent.h
@@ -15,5 +15,6 @@ public:
 	GuiComponent();	// 4J added
 	void drawCenteredString(Font *font, const wstring& str, int x, int y, int color);
    void drawString(Font *font, const wstring& str, int x, int y, int color);
+	void drawStringLiteral(Font* font, const wstring& str, int x, int y, int color);
    void blit(int x, int y, int sx, int sy, int w, int h);
 };
--- a/Minecraft.Client/PlayerConnection.cpp
+++ b/Minecraft.Client/PlayerConnection.cpp
@@ -21,6 +21,8 @@
 #include "..\Minecraft.World\AABB.h"
 #include "..\Minecraft.World\Pos.h"
 #include "..\Minecraft.World\SharedConstants.h"
+#include "..\Minecraft.World\ChatPacket.h"
+#include "..\Minecraft.World\StringHelpers.h"
 #include "..\Minecraft.World\Socket.h"
 #include "..\Minecraft.World\Achievements.h"
 #include "..\Minecraft.World\net.minecraft.h"
@@ -607,38 +609,26 @@ void PlayerConnection::handleSetCarriedItem(shared_ptr<SetCarriedItemPacket> pac

 void PlayerConnection::handleChat(shared_ptr<ChatPacket> packet)
 {
-	// 4J - TODO
-#if 0
-	wstring message = packet->message;
+	if (packet->m_stringArgs.empty()) return;
+	wstring message = trimString(packet->m_stringArgs[0]);
 	if (message.length() > SharedConstants::maxChatLength)
 	{
-		disconnect(L"Chat message too long");
+		disconnect(DisconnectPacket::eDisconnect_None); // or a specific reason
 		return;
 	}
-	message = message.trim();
-	for (int i = 0; i < message.length(); i++)
-	{
-		if (SharedConstants.acceptableLetters.indexOf(message.charAt(i)) < 0 && (int) message.charAt(i) < 32)
-		{
-			disconnect(L"Illegal characters in chat");
-			return;
-		}
-	}
-
-	if (message.startsWith("/"))
+	// Optional: validate characters (acceptableLetters)
+	if (message.length() > 0 && message[0] == L'/')
 	{
 		handleCommand(message);
-	} else {
-		message = "<" + player.name + "> " + message;
-		logger.info(message);
-		server.players.broadcastAll(new ChatPacket(message));
+		return;
 	}
+	wstring formatted = L"<" + player->name + L"> " + message;
+	server->getPlayers()->broadcastAll(shared_ptr<ChatPacket>(new ChatPacket(formatted)));
 	chatSpamTickCount += SharedConstants::TICKS_PER_SECOND;
 	if (chatSpamTickCount > SharedConstants::TICKS_PER_SECOND * 10)
 	{
-		disconnect("disconnect.spam");
+		disconnect(DisconnectPacket::eDisconnect_None); // spam
 	}
-#endif
 }

 void PlayerConnection::handleCommand(const wstring& message)
--- a/Minecraft.Client/Screen.cpp
+++ b/Minecraft.Client/Screen.cpp
@@ -1,6 +1,7 @@
 #include "stdafx.h"
 #include "Screen.h"
 #include "Button.h"
+#include "ChatScreen.h"
 #include "GuiParticles.h"
 #include "Tesselator.h"
 #include "Textures.h"
@@ -42,13 +43,32 @@ void Screen::keyPressed(wchar_t eventCharacter, int eventKey)

 wstring Screen::getClipboard()
 {
-	// 4J - removed
-	return NULL;
+#ifdef _WINDOWS64
+	if (!OpenClipboard(NULL)) return wstring();
+	HANDLE h = GetClipboardData(CF_UNICODETEXT);
+	wstring out;
+	if (h)
+	{
+		const wchar_t *p = reinterpret_cast<const wchar_t*>(GlobalLock(h));
+		if (p) { out = p; GlobalUnlock(h); }
+	}
+	CloseClipboard();
+	return out;
+#else
+	return wstring();
+#endif
 }

 void Screen::setClipboard(const wstring& str)
 {
-	// 4J - removed
+#ifdef _WINDOWS64
+	if (!OpenClipboard(NULL)) return;
+	EmptyClipboard();
+	size_t len = (str.length() + 1) * sizeof(wchar_t);
+	HGLOBAL h = GlobalAlloc(GMEM_MOVEABLE, len);
+	if (h) { memcpy(GlobalLock(h), str.c_str(), len); GlobalUnlock(h); SetClipboardData(CF_UNICODETEXT, h); }
+	CloseClipboard();
+#endif
 }

 void Screen::mouseClicked(int x, int y, int buttonNum)
@@ -121,34 +141,88 @@ void Screen::updateEvents()
 		}
 	}

-	// Poll keyboard events
+	// Only drain WM_CHAR when this screen wants text input (e.g. ChatScreen); otherwise we'd steal keys from the game
+	if (dynamic_cast<ChatScreen*>(this) != nullptr)
+	{
+		wchar_t ch;
+		while (g_KBMInput.ConsumeChar(ch))
+		{
+			if (ch >= 0x20)
+				keyPressed(ch, -1);
+			else if (ch == 0x08)
+				keyPressed(0, Keyboard::KEY_BACK);
+			else if (ch == 0x0D)
+				keyPressed(0, Keyboard::KEY_RETURN);
+		}
+	}
+
+	// Arrow key repeat: deliver on first press (when key down and last==0) and while held (throttled)
+	static DWORD s_arrowLastTime[2] = { 0, 0 };
+	static bool s_arrowFirstRepeat[2] = { false, false };
+	const DWORD ARROW_REPEAT_DELAY_MS = 250;
+	const DWORD ARROW_REPEAT_INTERVAL_MS = 50;
+	DWORD now = GetTickCount();
+
+	// Poll keyboard events (special keys that may not come through WM_CHAR, e.g. Escape, arrows)
 	for (int vk = 0; vk < 256; vk++)
 	{
-		if (g_KBMInput.IsKeyPressed(vk))
+		bool deliver = g_KBMInput.IsKeyPressed(vk);
+		if (vk == VK_LEFT || vk == VK_RIGHT)
 		{
-			// Map Windows virtual key to the Keyboard constants used by Screen::keyPressed
-			int mappedKey = -1;
-			wchar_t ch = 0;
-			if (vk == VK_ESCAPE)  mappedKey = Keyboard::KEY_ESCAPE;
-			else if (vk == VK_RETURN)  mappedKey = Keyboard::KEY_RETURN;
-			else if (vk == VK_BACK)    mappedKey = Keyboard::KEY_BACK;
-			else if (vk == VK_UP)      mappedKey = Keyboard::KEY_UP;
-			else if (vk == VK_DOWN)    mappedKey = Keyboard::KEY_DOWN;
-			else if (vk == VK_LEFT)    mappedKey = Keyboard::KEY_LEFT;
-			else if (vk == VK_RIGHT)   mappedKey = Keyboard::KEY_RIGHT;
-			else if (vk == VK_LSHIFT || vk == VK_RSHIFT) mappedKey = Keyboard::KEY_LSHIFT;
-			else if (vk == VK_TAB)     mappedKey = Keyboard::KEY_TAB;
-			else if (vk >= 'A' && vk <= 'Z')
+			int idx = (vk == VK_LEFT) ? 0 : 1;
+			if (!g_KBMInput.IsKeyDown(vk))
 			{
-				ch = (wchar_t)(vk - 'A' + L'a');
-				if (g_KBMInput.IsKeyDown(VK_LSHIFT) || g_KBMInput.IsKeyDown(VK_RSHIFT)) ch = (wchar_t)vk;
+				s_arrowLastTime[idx] = 0;
+				s_arrowFirstRepeat[idx] = false;
+			}
+			else
+			{
+				DWORD last = s_arrowLastTime[idx];
+				if (last == 0)
+					deliver = true;
+				else if (!deliver)
+				{
+					DWORD interval = s_arrowFirstRepeat[idx] ? ARROW_REPEAT_INTERVAL_MS : ARROW_REPEAT_DELAY_MS;
+					if ((now - last) >= interval)
+					{
+						deliver = true;
+						s_arrowFirstRepeat[idx] = true;
+					}
+				}
+				if (deliver)
+					s_arrowLastTime[idx] = now;
 			}
-			else if (vk >= '0' && vk <= '9') ch = (wchar_t)vk;
-			else if (vk == VK_SPACE) ch = L' ';
-
-			if (mappedKey != -1) keyPressed(ch, mappedKey);
-			else if (ch != 0) keyPressed(ch, -1);
 		}
+		// Escape: deliver when key is down so we don't miss it (IsKeyPressed can be one frame late)
+		if (vk == VK_ESCAPE && g_KBMInput.IsKeyDown(VK_ESCAPE))
+			deliver = true;
+		if (!deliver) continue;
+
+		if (dynamic_cast<ChatScreen*>(this) != nullptr &&
+			(vk >= 'A' && vk <= 'Z' || vk >= '0' && vk <= '9' || vk == VK_SPACE || vk == VK_RETURN || vk == VK_BACK))
+			continue;
+		// Map to Screen::keyPressed
+		int mappedKey = -1;
+		wchar_t ch = 0;
+		if (vk == VK_ESCAPE)  mappedKey = Keyboard::KEY_ESCAPE;
+		else if (vk == VK_RETURN)  mappedKey = Keyboard::KEY_RETURN;
+		else if (vk == VK_BACK)    mappedKey = Keyboard::KEY_BACK;
+		else if (vk == VK_UP)      mappedKey = Keyboard::KEY_UP;
+		else if (vk == VK_DOWN)    mappedKey = Keyboard::KEY_DOWN;
+		else if (vk == VK_LEFT)    mappedKey = Keyboard::KEY_LEFT;
+		else if (vk == VK_RIGHT)   mappedKey = Keyboard::KEY_RIGHT;
+		else if (vk == VK_LSHIFT || vk == VK_RSHIFT) mappedKey = Keyboard::KEY_LSHIFT;
+		else if (vk == VK_TAB)     mappedKey = Keyboard::KEY_TAB;
+		else if (vk >= 'A' && vk <= 'Z')
+		{
+			ch = static_cast<wchar_t>(vk - 'A' + L'a');
+			if (g_KBMInput.IsKeyDown(VK_LSHIFT) || g_KBMInput.IsKeyDown(VK_RSHIFT)) ch = static_cast<wchar_t>(vk);
+		}
+		else if (vk >= '0' && vk <= '9') ch = static_cast<wchar_t>(vk);
+		else if (vk == VK_SPACE) ch = L' ';
+
+		if (mappedKey != -1) keyPressed(ch, mappedKey);
+		else if (ch != 0) keyPressed(ch, -1);
 	}
 #else
 	/* 4J - TODO
@@ -232,10 +306,10 @@ void Screen::renderDirtBackground(int vo)
    float s = 32;
    t->begin();
    t->color(0x404040);
-    t->vertexUV((float)(0), (float)( height), (float)( 0), (float)( 0), (float)( height / s + vo));
-    t->vertexUV((float)(width), (float)( height), (float)( 0), (float)( width / s), (float)( height / s + vo));
-    t->vertexUV((float)(width), (float)( 0), (float)( 0), (float)( width / s), (float)( 0 + vo));
-    t->vertexUV((float)(0), (float)( 0), (float)( 0), (float)( 0), (float)( 0 + vo));
+    t->vertexUV(static_cast<float>(0), static_cast<float>(height), static_cast<float>(0), static_cast<float>(0), static_cast<float>(height / s + vo));
+    t->vertexUV(static_cast<float>(width), static_cast<float>(height), static_cast<float>(0), static_cast<float>(width / s), static_cast<float>(height / s + vo));
+    t->vertexUV(static_cast<float>(width), static_cast<float>(0), static_cast<float>(0), static_cast<float>(width / s), static_cast<float>(0 + vo));
+    t->vertexUV(static_cast<float>(0), static_cast<float>(0), static_cast<float>(0), static_cast<float>(0), static_cast<float>(0 + vo));
    t->end();
 #endif
 }
--- a/Minecraft.Client/Screen.h
+++ b/Minecraft.Client/Screen.h
@@ -36,9 +36,12 @@ protected:
    virtual void mouseReleased(int x, int y, int buttonNum);
    virtual void buttonClicked(Button *button);
 public:
-	virtual void init(Minecraft *minecraft, int width, int height);
+    virtual void init(Minecraft *minecraft, int width, int height);
    virtual void setSize(int width, int height);
    virtual void init();
+	virtual void handlePasteRequest() {}
+	virtual void handleHistoryUp() {}
+	virtual void handleHistoryDown() {}
    virtual void updateEvents();
    virtual void mouseEvent();
    virtual void keyboardEvent();
--- a/Minecraft.Client/Windows64/KeyboardMouseInput.cpp
+++ b/Minecraft.Client/Windows64/KeyboardMouseInput.cpp
@@ -257,8 +257,8 @@ bool KeyboardMouseInput::IsMouseButtonReleased(int button) const

 void KeyboardMouseInput::ConsumeMouseDelta(float &dx, float &dy)
 {
-	dx = (float)m_mouseDeltaAccumX;
-	dy = (float)m_mouseDeltaAccumY;
+	dx = static_cast<float>(m_mouseDeltaAccumX);
+	dy = static_cast<float>(m_mouseDeltaAccumY);
 	m_mouseDeltaAccumX = 0;
 	m_mouseDeltaAccumY = 0;
 }
@@ -375,12 +375,12 @@ float KeyboardMouseInput::GetMoveY() const

 float KeyboardMouseInput::GetLookX(float sensitivity) const
 {
-	return (float)m_mouseDeltaX * sensitivity;
+	return static_cast<float>(m_mouseDeltaX) * sensitivity;
 }

 float KeyboardMouseInput::GetLookY(float sensitivity) const
 {
-	return (float)(-m_mouseDeltaY) * sensitivity;
+	return static_cast<float>(-m_mouseDeltaY) * sensitivity;
 }

 void KeyboardMouseInput::OnChar(wchar_t c)
--- a/Minecraft.Client/Windows64/KeyboardMouseInput.h
+++ b/Minecraft.Client/Windows64/KeyboardMouseInput.h
@@ -143,4 +143,4 @@ private:

 extern KeyboardMouseInput g_KBMInput;

-#endif // _WINDOWS64
+#endif
--- a/Minecraft.Client/Windows64/Windows64_Minecraft.cpp
+++ b/Minecraft.Client/Windows64/Windows64_Minecraft.cpp
@@ -22,6 +22,9 @@
 #include "..\..\Minecraft.World\net.minecraft.world.level.tile.h"

 #include "..\ClientConnection.h"
+#include "..\Minecraft.h"
+#include "..\ChatScreen.h"
+#include "KeyboardMouseInput.h"
 #include "..\User.h"
 #include "..\..\Minecraft.World\Socket.h"
 #include "..\..\Minecraft.World\ThreadName.h"
@@ -572,14 +575,28 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 	case WM_CHAR:
 		// Buffer typed characters so UIScene_Keyboard can dispatch them to the Iggy Flash player
 		if (wParam >= 0x20 || wParam == 0x08 || wParam == 0x0D) // printable chars + backspace + enter
-			g_KBMInput.OnChar((wchar_t)wParam);
+			g_KBMInput.OnChar(static_cast<wchar_t>(wParam));
 		break;

 	case WM_KEYDOWN:
 	case WM_SYSKEYDOWN:
 	{
-		int vk = (int)wParam;
-		if (lParam & 0x40000000) break; // ignore auto-repeat
+		int vk = static_cast<int>(wParam);
+		if ((lParam & 0x40000000) && vk != VK_LEFT && vk != VK_RIGHT && vk != VK_BACK)
+			break;
+#ifdef _WINDOWS64
+		Minecraft* pm = Minecraft::GetInstance();
+		ChatScreen* chat = pm && pm->screen ? dynamic_cast<ChatScreen*>(pm->screen) : nullptr;
+		if (chat)
+		{
+			if (vk == 'V' && (GetKeyState(VK_CONTROL) & 0x8000))
+				{ chat->handlePasteRequest(); break; }
+			if ((vk == VK_UP || vk == VK_DOWN) && !(lParam & 0x40000000))
+				{ if (vk == VK_UP) chat->handleHistoryUp(); else chat->handleHistoryDown(); break; }
+			if (vk >= '1' && vk <= '9') // Prevent hotkey conflicts
+				break;
+		}
+#endif
 		if (vk == VK_SHIFT)
 			vk = (MapVirtualKey((lParam >> 16) & 0xFF, MAPVK_VSC_TO_VK_EX) == VK_RSHIFT) ? VK_RSHIFT : VK_LSHIFT;
 		else if (vk == VK_CONTROL)
@@ -592,7 +609,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 	case WM_KEYUP:
 	case WM_SYSKEYUP:
 	{
-		int vk = (int)wParam;
+		int vk = static_cast<int>(wParam);
 		if (vk == VK_SHIFT)
 			vk = (MapVirtualKey((lParam >> 16) & 0xFF, MAPVK_VSC_TO_VK_EX) == VK_RSHIFT) ? VK_RSHIFT : VK_LSHIFT;
 		else if (vk == VK_CONTROL)
@@ -1612,6 +1629,14 @@ int APIENTRY _tWinMain(_In_ HINSTANCE hInstance,
 			}
 		}

+		// Open chat
+		if (g_KBMInput.IsKeyPressed('T') && app.GetGameStarted() && !ui.GetMenuDisplayed(0) && pMinecraft->screen == NULL)
+		{
+			g_KBMInput.ClearCharBuffer();
+			pMinecraft->setScreen(new ChatScreen());
+			SetFocus(g_hWnd);
+		}
+
 #if 0
 		// has the game defined profile data been changed (by a profile load)
 		if(app.uiGameDefinedDataChangedBitmask!=0)