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-rw-r--r--NorthstarDedicatedTest/localchatwriter.cpp460
1 files changed, 460 insertions, 0 deletions
diff --git a/NorthstarDedicatedTest/localchatwriter.cpp b/NorthstarDedicatedTest/localchatwriter.cpp
new file mode 100644
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+++ b/NorthstarDedicatedTest/localchatwriter.cpp
@@ -0,0 +1,460 @@
+#include "pch.h"
+#include "localchatwriter.h"
+
+class vgui_BaseRichText_vtable;
+
+class vgui_BaseRichText
+{
+ public:
+ vgui_BaseRichText_vtable* vtable;
+};
+
+class vgui_BaseRichText_vtable
+{
+ public:
+ char unknown1[1880];
+
+ void(__fastcall* InsertChar)(vgui_BaseRichText* self, wchar_t ch);
+
+ // yes these are swapped from the Source 2013 code, who knows why
+ void(__fastcall* InsertStringWide)(vgui_BaseRichText* self, const wchar_t* wszText);
+ void(__fastcall* InsertStringAnsi)(vgui_BaseRichText* self, const char* text);
+
+ void(__fastcall* SelectNone)(vgui_BaseRichText* self);
+ void(__fastcall* SelectAllText)(vgui_BaseRichText* self);
+ void(__fastcall* SelectNoText)(vgui_BaseRichText* self);
+ void(__fastcall* CutSelected)(vgui_BaseRichText* self);
+ void(__fastcall* CopySelected)(vgui_BaseRichText* self);
+ void(__fastcall* SetPanelInteractive)(vgui_BaseRichText* self, bool bInteractive);
+ void(__fastcall* SetUnusedScrollbarInvisible)(vgui_BaseRichText* self, bool bInvis);
+
+ void* unknown2;
+
+ void(__fastcall* GotoTextStart)(vgui_BaseRichText* self);
+ void(__fastcall* GotoTextEnd)(vgui_BaseRichText* self);
+
+ void* unknown3[3];
+
+ void(__fastcall* SetVerticalScrollbar)(vgui_BaseRichText* self, bool state);
+ void(__fastcall* SetMaximumCharCount)(vgui_BaseRichText* self, int maxChars);
+ void(__fastcall* InsertColorChange)(vgui_BaseRichText* self, vgui_Color col);
+ void(__fastcall* InsertIndentChange)(vgui_BaseRichText* self, int pixelsIndent);
+ void(__fastcall* InsertClickableTextStart)(vgui_BaseRichText* self, const char* pchClickAction);
+ void(__fastcall* InsertClickableTextEnd)(vgui_BaseRichText* self);
+ void(__fastcall* InsertPossibleURLString)(
+ vgui_BaseRichText* self, const char* text, vgui_Color URLTextColor, vgui_Color normalTextColor);
+ void(__fastcall* InsertFade)(vgui_BaseRichText* self, float flSustain, float flLength);
+ void(__fastcall* ResetAllFades)(vgui_BaseRichText* self, bool bHold, bool bOnlyExpired, float flNewSustain);
+ void(__fastcall* SetToFullHeight)(vgui_BaseRichText* self);
+ int(__fastcall* GetNumLines)(vgui_BaseRichText* self);
+};
+
+class CGameSettings
+{
+ public:
+ char unknown1[92];
+ int isChatEnabled;
+};
+
+// Not sure what this actually refers to but chatFadeLength and chatFadeSustain
+// have their value at the same offset
+class CGameFloatVar
+{
+ public:
+ char unknown1[88];
+ float value;
+};
+
+class CHudChat
+{
+ public:
+ char unknown1[720];
+
+ vgui_Color m_sameTeamColor;
+ vgui_Color m_enemyTeamColor;
+ vgui_Color m_mainTextColor;
+ vgui_Color m_networkNameColor;
+
+ char unknown2[12];
+
+ int m_unknownContext;
+
+ char unknown3[8];
+
+ vgui_BaseRichText* m_richText;
+
+ CHudChat* next;
+ CHudChat* previous;
+};
+
+CGameSettings** gGameSettings;
+CGameFloatVar** gChatFadeLength;
+CGameFloatVar** gChatFadeSustain;
+
+// Linked list of CHudChats
+CHudChat** gHudChatList;
+
+typedef void(__fastcall* ConvertANSIToUnicodeType)(LPCSTR ansi, int ansiCharLength, LPWSTR unicode, int unicodeCharLength);
+ConvertANSIToUnicodeType ConvertANSIToUnicode;
+
+LocalChatWriter::SwatchColor swatchColors[4] = {
+ LocalChatWriter::MainTextColor,
+ LocalChatWriter::SameTeamNameColor,
+ LocalChatWriter::EnemyTeamNameColor,
+ LocalChatWriter::NetworkNameColor,
+};
+
+vgui_Color darkColors[8] = {vgui_Color{0, 0, 0, 255}, vgui_Color{205, 49, 49, 255}, vgui_Color{13, 188, 121, 255},
+ vgui_Color{229, 229, 16, 255}, vgui_Color{36, 114, 200, 255}, vgui_Color{188, 63, 188, 255},
+ vgui_Color{17, 168, 205, 255}, vgui_Color{229, 229, 229, 255}};
+
+vgui_Color lightColors[8] = {vgui_Color{102, 102, 102, 255}, vgui_Color{241, 76, 76, 255}, vgui_Color{35, 209, 139, 255},
+ vgui_Color{245, 245, 67, 255}, vgui_Color{59, 142, 234, 255}, vgui_Color{214, 112, 214, 255},
+ vgui_Color{41, 184, 219, 255}, vgui_Color{255, 255, 255, 255}};
+
+class AnsiEscapeParser
+{
+ public:
+ explicit AnsiEscapeParser(LocalChatWriter* writer) : m_writer(writer) {}
+
+ void HandleVal(unsigned long val)
+ {
+ switch (m_next)
+ {
+ case Next::ControlType:
+ m_next = HandleControlType(val);
+ break;
+ case Next::ForegroundType:
+ m_next = HandleForegroundType(val);
+ break;
+ case Next::Foreground8Bit:
+ m_next = HandleForeground8Bit(val);
+ break;
+ case Next::ForegroundR:
+ m_next = HandleForegroundR(val);
+ break;
+ case Next::ForegroundG:
+ m_next = HandleForegroundG(val);
+ break;
+ case Next::ForegroundB:
+ m_next = HandleForegroundB(val);
+ break;
+ }
+ }
+
+ private:
+ enum class Next
+ {
+ ControlType,
+ ForegroundType,
+ Foreground8Bit,
+ ForegroundR,
+ ForegroundG,
+ ForegroundB
+ };
+
+ LocalChatWriter* m_writer;
+ Next m_next = Next::ControlType;
+ vgui_Color m_expandedColor{0, 0, 0, 0};
+
+ Next HandleControlType(unsigned long val)
+ {
+ // Reset
+ if (val == 0 || val == 39)
+ {
+ m_writer->InsertSwatchColorChange(LocalChatWriter::MainTextColor);
+ return Next::ControlType;
+ }
+
+ // Dark foreground color
+ if (val >= 30 && val < 38)
+ {
+ m_writer->InsertColorChange(darkColors[val - 30]);
+ return Next::ControlType;
+ }
+
+ // Light foreground color
+ if (val >= 90 && val < 98)
+ {
+ m_writer->InsertColorChange(lightColors[val - 90]);
+ return Next::ControlType;
+ }
+
+ // Game swatch color
+ if (val >= 110 && val < 114)
+ {
+ m_writer->InsertSwatchColorChange(swatchColors[val - 110]);
+ return Next::ControlType;
+ }
+
+ // Expanded foreground color
+ if (val == 38)
+ {
+ return Next::ForegroundType;
+ }
+
+ return Next::ControlType;
+ }
+
+ Next HandleForegroundType(unsigned long val)
+ {
+ // Next values are r,g,b
+ if (val == 2)
+ {
+ m_expandedColor = {0, 0, 0, 255};
+ return Next::ForegroundR;
+ }
+ // Next value is 8-bit swatch color
+ if (val == 5)
+ {
+ return Next::Foreground8Bit;
+ }
+
+ // Invalid
+ return Next::ControlType;
+ }
+
+ Next HandleForeground8Bit(unsigned long val)
+ {
+ if (val < 8)
+ {
+ m_writer->InsertColorChange(darkColors[val]);
+ }
+ else if (val < 16)
+ {
+ m_writer->InsertColorChange(lightColors[val - 8]);
+ }
+ else if (val < 232)
+ {
+ unsigned char code = val - 16;
+ unsigned char blue = code % 6;
+ unsigned char green = ((code - blue) / 6) % 6;
+ unsigned char red = (code - blue - (green * 6)) / 36;
+ m_writer->InsertColorChange(
+ vgui_Color{(unsigned char)(red * 51), (unsigned char)(green * 51), (unsigned char)(blue * 51), 255});
+ }
+ else if (val < UCHAR_MAX)
+ {
+ unsigned char brightness = (val - 232) * 10 + 8;
+ m_writer->InsertColorChange(vgui_Color{brightness, brightness, brightness, 255});
+ }
+
+ return Next::ControlType;
+ }
+
+ Next HandleForegroundR(unsigned long val)
+ {
+ if (val >= UCHAR_MAX)
+ return Next::ControlType;
+
+ m_expandedColor.r = (unsigned char)val;
+ return Next::ForegroundG;
+ }
+
+ Next HandleForegroundG(unsigned long val)
+ {
+ if (val >= UCHAR_MAX)
+ return Next::ControlType;
+
+ m_expandedColor.g = (unsigned char)val;
+ return Next::ForegroundB;
+ }
+
+ Next HandleForegroundB(unsigned long val)
+ {
+ if (val >= UCHAR_MAX)
+ return Next::ControlType;
+
+ m_expandedColor.b = (unsigned char)val;
+ m_writer->InsertColorChange(m_expandedColor);
+ return Next::ControlType;
+ }
+};
+
+LocalChatWriter::LocalChatWriter(Context context) : m_context(context) {}
+
+void LocalChatWriter::Write(const char* str)
+{
+ char writeBuffer[256];
+
+ while (true)
+ {
+ const char* startOfEscape = strstr(str, "\033[");
+
+ if (startOfEscape == NULL)
+ {
+ // No more escape sequences, write the remaining text and exit
+ InsertText(str);
+ break;
+ }
+
+ if (startOfEscape != str)
+ {
+ // There is some text before the escape sequence, just print that
+
+ size_t copyChars = startOfEscape - str;
+ if (copyChars > 255)
+ copyChars = 255;
+ strncpy(writeBuffer, str, copyChars);
+ writeBuffer[copyChars] = 0;
+
+ InsertText(writeBuffer);
+ }
+
+ const char* escape = startOfEscape + 2;
+ str = ApplyAnsiEscape(escape);
+ }
+}
+
+void LocalChatWriter::WriteLine(const char* str)
+{
+ InsertChar(L'\n');
+ InsertSwatchColorChange(MainTextColor);
+ Write(str);
+}
+
+void LocalChatWriter::InsertChar(wchar_t ch)
+{
+ for (CHudChat* hud = *gHudChatList; hud != NULL; hud = hud->next)
+ {
+ if (hud->m_unknownContext != (int)m_context)
+ continue;
+
+ hud->m_richText->vtable->InsertChar(hud->m_richText, ch);
+ }
+
+ if (ch != L'\n')
+ {
+ InsertDefaultFade();
+ }
+}
+
+void LocalChatWriter::InsertText(const char* str)
+{
+ WCHAR messageUnicode[288];
+ ConvertANSIToUnicode(str, -1, messageUnicode, 274);
+
+ for (CHudChat* hud = *gHudChatList; hud != NULL; hud = hud->next)
+ {
+ if (hud->m_unknownContext != (int)m_context)
+ continue;
+
+ hud->m_richText->vtable->InsertStringWide(hud->m_richText, messageUnicode);
+ }
+
+ InsertDefaultFade();
+}
+
+void LocalChatWriter::InsertText(const wchar_t* str)
+{
+ for (CHudChat* hud = *gHudChatList; hud != NULL; hud = hud->next)
+ {
+ if (hud->m_unknownContext != (int)m_context)
+ continue;
+
+ hud->m_richText->vtable->InsertStringWide(hud->m_richText, str);
+ }
+
+ InsertDefaultFade();
+}
+
+void LocalChatWriter::InsertColorChange(vgui_Color color)
+{
+ for (CHudChat* hud = *gHudChatList; hud != NULL; hud = hud->next)
+ {
+ if (hud->m_unknownContext != (int)m_context)
+ continue;
+
+ hud->m_richText->vtable->InsertColorChange(hud->m_richText, color);
+ }
+}
+
+static vgui_Color GetHudSwatchColor(CHudChat* hud, LocalChatWriter::SwatchColor swatchColor)
+{
+ switch (swatchColor)
+ {
+ case LocalChatWriter::MainTextColor:
+ return hud->m_mainTextColor;
+ case LocalChatWriter::SameTeamNameColor:
+ return hud->m_sameTeamColor;
+ case LocalChatWriter::EnemyTeamNameColor:
+ return hud->m_enemyTeamColor;
+ case LocalChatWriter::NetworkNameColor:
+ return hud->m_networkNameColor;
+ }
+ return vgui_Color{0, 0, 0, 0};
+}
+
+void LocalChatWriter::InsertSwatchColorChange(SwatchColor swatchColor)
+{
+ for (CHudChat* hud = *gHudChatList; hud != NULL; hud = hud->next)
+ {
+ if (hud->m_unknownContext != (int)m_context)
+ continue;
+ hud->m_richText->vtable->InsertColorChange(hud->m_richText, GetHudSwatchColor(hud, swatchColor));
+ }
+}
+
+const char* LocalChatWriter::ApplyAnsiEscape(const char* escape)
+{
+ AnsiEscapeParser decoder(this);
+ while (true)
+ {
+ char* afterControlType = NULL;
+ unsigned long controlType = strtoul(escape, &afterControlType, 10);
+
+ // Malformed cases:
+ // afterControlType = NULL: strtoul errored
+ // controlType = 0 and escape doesn't actually start with 0: wasn't a number
+ if (afterControlType == NULL || (controlType == 0 && escape[0] != '0'))
+ {
+ return escape;
+ }
+
+ decoder.HandleVal(controlType);
+
+ // m indicates the end of the sequence
+ if (afterControlType[0] == 'm')
+ {
+ return afterControlType + 1;
+ }
+
+ // : or ; indicates more values remain, anything else is malformed
+ if (afterControlType[0] != ':' && afterControlType[0] != ';')
+ {
+ return afterControlType;
+ }
+
+ escape = afterControlType + 1;
+ }
+}
+
+void LocalChatWriter::InsertDefaultFade()
+{
+ float fadeLength = 0.f;
+ float fadeSustain = 0.f;
+ if ((*gGameSettings)->isChatEnabled)
+ {
+ fadeLength = (*gChatFadeLength)->value;
+ fadeSustain = (*gChatFadeSustain)->value;
+ }
+
+ for (CHudChat* hud = *gHudChatList; hud != NULL; hud = hud->next)
+ {
+ if (hud->m_unknownContext != (int)m_context)
+ continue;
+ hud->m_richText->vtable->InsertFade(hud->m_richText, fadeSustain, fadeLength);
+ }
+}
+
+bool IsFirstHud(void* hud) { return hud == *gHudChatList; }
+
+void InitialiseLocalChatWriter(HMODULE baseAddress)
+{
+ gGameSettings = (CGameSettings**)((char*)baseAddress + 0x11BAA48);
+ gChatFadeLength = (CGameFloatVar**)((char*)baseAddress + 0x11BAB78);
+ gChatFadeSustain = (CGameFloatVar**)((char*)baseAddress + 0x11BAC08);
+ gHudChatList = (CHudChat**)((char*)baseAddress + 0x11BA9E8);
+
+ ConvertANSIToUnicode = (ConvertANSIToUnicodeType)((char*)baseAddress + 0x7339A0);
+}