Function ChatDraw

src/openrct2/interface/Chat.cpp:92–209

}

void ChatDraw(RenderTarget& rt, ColourWithFlags chatBackgroundColor)
{
    thread_local std::string lineBuffer;

    if (!ChatAvailable())
    {
        gChatOpen = false;
        return;
    }

    _chatLeft = 10;
    _chatRight = std::min<int16_t>((ContextGetWidth() - 10), kChatMaxWindowWidth);
    _chatWidth = _chatRight - _chatLeft;
    _chatBottom = ContextGetHeight() - 45;
    _chatTop = _chatBottom - 10;

    const char* inputLine = _chatCurrentLine.c_str();
    int32_t inputLineHeight = 10;

    // Draw chat window
    if (gChatOpen)
    {
        inputLineHeight = ChatStringWrappedGetHeight(inputLine, _chatWidth - 10);
        _chatTop -= inputLineHeight;

        for (const auto& entry : _chatHistory)
        {
            if (entry.empty())
            {
                continue;
            }
            lineBuffer = entry;
            int32_t lineHeight = ChatStringWrappedGetHeight(lineBuffer, _chatWidth - 10);
            _chatTop -= (lineHeight + 5);
        }

        _chatHeight = _chatBottom - _chatTop;

        if (_chatTop < 50)
        {
            _chatTop = 50;
        }
        else if (_chatHeight < 150)
        { // Min height
            _chatTop = _chatBottom - 150;
            _chatHeight = 150;
        }

        ScreenCoordsXY topLeft{ _chatLeft, _chatTop };
        ScreenCoordsXY bottomRight{ _chatRight, _chatBottom };
        ScreenCoordsXY bottomLeft{ _chatLeft, _chatBottom };
        GfxSetDirtyBlocks(
            { topLeft - ScreenCoordsXY{ 0, 5 }, bottomRight + ScreenCoordsXY{ 0, 5 } }); // Background area + Textbox
        Rectangle::filter(
            rt, { topLeft - ScreenCoordsXY{ 0, 5 }, bottomRight + ScreenCoordsXY{ 0, 5 } },
            FilterPaletteID::palette51); // Opaque grey background
        Rectangle::fillInset(
            rt, { topLeft - ScreenCoordsXY{ 0, 5 }, bottomRight + ScreenCoordsXY{ 0, 5 } }, chatBackgroundColor,