Full document and further clean up minitext.cpp
This commit is contained in:
Anders Jenbo
parent
beca185e5b
commit
757fd4d33d
3 changed files with 117 additions and 57 deletions
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@ -7,16 +7,24 @@
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DEVILUTION_BEGIN_NAMESPACE
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int qtexty;
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const char *qtextptr;
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int qtextSpd;
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/** Specify if the quest dialog window is being shown */
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bool qtextflag;
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Uint32 sgLastScroll;
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Uint8 *pMedTextCels;
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Uint8 *pTextBoxCels;
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/** Current y position of text in px */
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static int qtexty;
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/** Pointer to the current text being displayed */
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static const char *qtextptr;
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/** Vertical speed of the scrolling text in ms/px */
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static int qtextSpd;
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/** Time of last rendering of the text */
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static Uint32 sgLastScroll;
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/** Graphics for the medium size font */
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static Uint8 *pMedTextCels;
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/** Graphics for the window border */
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static Uint8 *pTextBoxCels;
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/** Maps from font index to medtexts.cel frame number. */
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const Uint8 mfontframe[128] = {
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static const Uint8 mfontframe[128] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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@ -36,7 +44,7 @@ const Uint8 mfontframe[128] = {
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* character width may be distinct from the frame width, which is 22 for every
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* medtexts.cel frame.
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*/
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const Uint8 mfontkern[56] = {
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static const Uint8 mfontkern[56] = {
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5, 15, 10, 13, 14, 10, 9, 13, 11, 5,
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5, 11, 10, 16, 13, 16, 10, 15, 12, 10,
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14, 17, 17, 22, 17, 16, 11, 5, 11, 11,
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@ -45,24 +53,15 @@ const Uint8 mfontkern[56] = {
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5, 5, 5, 5, 11, 12
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};
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/* data */
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/** Pixels for a line of text and the empty space under it. */
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#define MQTEXTNL 38
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void FreeQuestText()
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{
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MemFreeDbg(pMedTextCels);
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MemFreeDbg(pTextBoxCels);
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}
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void InitQuestText()
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{
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pMedTextCels = LoadFileInMem("Data\\MedTextS.CEL", NULL);
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pTextBoxCels = LoadFileInMem("Data\\TextBox.CEL", NULL);
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qtextflag = false;
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}
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static const int lineHeight = 38;
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/**
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* @brief Build a single line of text from the given text stream
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* @param text The original text
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* @param line The buffer to insert the line in to
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* @return Indicate that the end of the text was reached
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*/
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static bool BuildLine(const char *text, char line[128])
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{
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int lineWidth = 0;
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@ -95,6 +94,10 @@ static bool BuildLine(const char *text, char line[128])
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return false;
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}
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/**
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* @brief Calculate the number of line required by the given text
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* @return Number of lines
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*/
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static int GetLinesInText(const char *text)
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{
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char line[128];
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@ -110,6 +113,11 @@ static int GetLinesInText(const char *text)
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return lines;
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}
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/**
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* @brief Calculate the speed the current text should scroll to match the given audio
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* @param nSFX The index of the sound in the sgSFX table
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* @return ms/px
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*/
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static int CalcTextSpeed(int nSFX)
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{
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Uint32 SfxFrames, TextHeight;
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@ -117,32 +125,29 @@ static int CalcTextSpeed(int nSFX)
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SfxFrames = GetSFXLength(nSFX);
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assert(SfxFrames != 0);
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TextHeight = MQTEXTNL * GetLinesInText(qtextptr);
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TextHeight += MQTEXTNL * 5; // adjust so when speaker is done two line are left
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TextHeight = lineHeight * GetLinesInText(qtextptr);
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TextHeight += lineHeight * 5; // adjust so when speaker is done two line are left
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return SfxFrames / TextHeight;
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}
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void InitQTextMsg(int m)
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{
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if (alltext[m].scrlltxt) {
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questlog = FALSE;
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qtextptr = alltext[m].txtstr;
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qtextflag = TRUE;
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qtexty = 340 + SCREEN_Y + UI_OFFSET_Y;
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qtextSpd = CalcTextSpeed(alltext[m].sfxnr);
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sgLastScroll = SDL_GetTicks();
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}
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PlaySFX(alltext[m].sfxnr);
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}
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void DrawQTextBack()
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/**
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* @brief Draw the quest dialog window decoration and background
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*/
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static void DrawQTextBack()
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{
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CelDraw(PANEL_X + 24, SCREEN_Y + 327 + UI_OFFSET_Y, pTextBoxCels, 1, 591);
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trans_rect(PANEL_LEFT + 27, UI_OFFSET_Y + 28, 585, 297);
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}
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void PrintQTextChr(int sx, int sy, Uint8 *pCelBuff, int nCel)
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/**
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* @brief Print a character
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* @param sx Back buffer coordinate
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* @param sy Back buffer coordinate
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* @param pCelBuff Cel data
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* @param nCel CEL frame number
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*/
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static void PrintQTextChr(int sx, int sy, Uint8 *pCelBuff, int nCel)
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{
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Uint8 *pStart, *pEnd;
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@ -157,13 +162,33 @@ void PrintQTextChr(int sx, int sy, Uint8 *pCelBuff, int nCel)
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gpBufEnd = pEnd;
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}
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void DrawQText()
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/**
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* @brief Draw the current text in the quest dialog window
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* @return the start of the text currently being rendered
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*/
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static void ScrollQTextContent(const char *pnl)
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{
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for (Uint32 currTime = SDL_GetTicks(); sgLastScroll + qtextSpd < currTime; sgLastScroll += qtextSpd) {
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qtexty--;
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if (qtexty <= 49 + SCREEN_Y + UI_OFFSET_Y) {
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qtexty += 38;
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qtextptr = pnl;
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if (*pnl == '|') {
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qtextflag = false;
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}
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break;
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}
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}
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}
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/**
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* @brief Draw the current text in the quest dialog window
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*/
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static void DrawQTextContent()
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{
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const char *text, *pnl;
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char line[128];
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DrawQTextBack();
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text = qtextptr;
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pnl = nullptr;
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int tx = 48 + PANEL_X;
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@ -187,23 +212,58 @@ void DrawQText()
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pnl = text;
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}
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tx = 48 + PANEL_X;
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ty += MQTEXTNL;
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ty += lineHeight;
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if (ty > 341 + SCREEN_Y + UI_OFFSET_Y) {
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doneflag = true;
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}
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}
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for (Uint32 currTime = SDL_GetTicks(); sgLastScroll + qtextSpd < currTime; sgLastScroll += qtextSpd) {
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qtexty--;
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if (qtexty <= 49 + SCREEN_Y + UI_OFFSET_Y) {
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qtexty += 38;
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qtextptr = pnl;
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if (*pnl == '|') {
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qtextflag = FALSE;
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}
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break;
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}
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ScrollQTextContent(pnl);
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}
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/**
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* @brief Free the resouces used by the quest dialog window
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*/
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void FreeQuestText()
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{
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MemFreeDbg(pMedTextCels);
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MemFreeDbg(pTextBoxCels);
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}
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/**
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* @brief Load the resouces used by the quest dialog window, and initialize it's state
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*/
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void InitQuestText()
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{
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pMedTextCels = LoadFileInMem("Data\\MedTextS.CEL", nullptr);
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pTextBoxCels = LoadFileInMem("Data\\TextBox.CEL", nullptr);
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qtextflag = false;
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}
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/**
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* @brief Start the given naration
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* @param m Index of narration from the alltext table
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*/
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void InitQTextMsg(int m)
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{
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if (alltext[m].scrlltxt) {
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questlog = false;
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qtextptr = alltext[m].txtstr;
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qtextflag = true;
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qtexty = 340 + SCREEN_Y + UI_OFFSET_Y;
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qtextSpd = CalcTextSpeed(alltext[m].sfxnr);
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sgLastScroll = SDL_GetTicks();
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}
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PlaySFX(alltext[m].sfxnr);
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}
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/**
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* @brief Draw the quest dialog window decoration and background
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*/
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void DrawQText()
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{
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DrawQTextBack();
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DrawQTextContent();
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}
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DEVILUTION_END_NAMESPACE
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@ -8,7 +8,7 @@
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DEVILUTION_BEGIN_NAMESPACE
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int qtopline;
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BOOL questlog;
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bool questlog;
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BYTE *pQLogCel;
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/** Contains the quests of the current game. */
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QuestStruct quests[MAXQUESTS];
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@ -13,7 +13,7 @@ extern "C" {
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#endif
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extern bool allquests;
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extern BOOL questlog;
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extern bool questlog;
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extern BYTE *pQLogCel;
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extern QuestStruct quests[MAXQUESTS];
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extern int ReturnLvlX;
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