m_menu.c

Nxdoom真的满好用的

	if (c < 0 || c >= HU_FONTSIZE)
	    w += 4;
	else
	    w += SHORT (hu_font[c]->width);
    }
		
    return w;
}



//
//      Find string height from hu_font chars
//
int M_StringHeight(char* string)
{
    int             i;
    int             h;
    int             height = SHORT(hu_font[0]->height);
	
    h = height;
    for (i = 0;i < strlen(string);i++)
	if (string[i] == '\n')
	    h += height;
		
    return h;
}


//
//      Write a string using the hu_font
//
void
M_WriteText
( int		x,
  int		y,
  char*		string)
{
    int		w;
    char*	ch;
    int		c;
    int		cx;
    int		cy;
		

    ch = string;
    cx = x;
    cy = y;
	
    while(1)
    {
	c = *ch++;
	if (!c)
	    break;
	if (c == '\n')
	{
	    cx = x;
	    cy += 12;
	    continue;
	}
		
	c = toupper(c) - HU_FONTSTART;
	if (c < 0 || c>= HU_FONTSIZE)
	{
	    cx += 4;
	    continue;
	}
		
	w = SHORT (hu_font[c]->width);
	if (cx+w > SCREENWIDTH)
	    break;
	V_DrawPatchDirect(cx, cy, 0, hu_font[c]);
	cx+=w;
    }
}



//
// CONTROL PANEL
//

//
// M_Responder
//
boolean M_Responder (event_t* ev)
{
    int             ch;
    int             i;
    static  int     joywait = 0;
    static  int     mousewait = 0;
    static  int     mousey = 0;
    static  int     lasty = 0;
    static  int     mousex = 0;
    static  int     lastx = 0;
	
    ch = -1;
	
    if (ev->type == ev_joystick && joywait < I_GetTime())
    {
	if (ev->data3 == -1)
	{
	    ch = KEY_UPARROW;
	    joywait = I_GetTime() + 5;
	}
	else if (ev->data3 == 1)
	{
	    ch = KEY_DOWNARROW;
	    joywait = I_GetTime() + 5;
	}
		
	if (ev->data2 == -1)
	{
	    ch = KEY_LEFTARROW;
	    joywait = I_GetTime() + 2;
	}
	else if (ev->data2 == 1)
	{
	    ch = KEY_RIGHTARROW;
	    joywait = I_GetTime() + 2;
	}
		
	if (ev->data1&1)
	{
	    ch = KEY_ENTER;
	    joywait = I_GetTime() + 5;
	}
	if (ev->data1&2)
	{
	    ch = KEY_BACKSPACE;
	    joywait = I_GetTime() + 5;
	}
    }
    else
    {
	if (ev->type == ev_mouse && mousewait < I_GetTime())
	{
	    mousey += ev->data3;
	    if (mousey < lasty-30)
	    {
		ch = KEY_DOWNARROW;
		mousewait = I_GetTime() + 5;
		mousey = lasty -= 30;
	    }
	    else if (mousey > lasty+30)
	    {
		ch = KEY_UPARROW;
		mousewait = I_GetTime() + 5;
		mousey = lasty += 30;
	    }
		
	    mousex += ev->data2;
	    if (mousex < lastx-30)
	    {
		ch = KEY_LEFTARROW;
		mousewait = I_GetTime() + 5;
		mousex = lastx -= 30;
	    }
	    else if (mousex > lastx+30)
	    {
		ch = KEY_RIGHTARROW;
		mousewait = I_GetTime() + 5;
		mousex = lastx += 30;
	    }
		
	    if (ev->data1&1)
	    {
		ch = KEY_ENTER;
		mousewait = I_GetTime() + 15;
	    }
			
	    if (ev->data1&2)
	    {
		ch = KEY_BACKSPACE;
		mousewait = I_GetTime() + 15;
	    }
	}
	else
	    if (ev->type == ev_keydown)
	    {
		ch = ev->data1;
	    }
    }
    
    if (ch == -1)
	return false;

    
    // Save Game string input
    if (saveStringEnter)
    {
	switch(ch)
	{
	  case KEY_BACKSPACE:
	    if (saveCharIndex > 0)
	    {
		saveCharIndex--;
		savegamestrings[saveSlot][saveCharIndex] = 0;
	    }
	    break;
				
	  case KEY_ESCAPE:
	    saveStringEnter = 0;
	    strcpy(&savegamestrings[saveSlot][0],saveOldString);
	    break;
				
	  case KEY_ENTER:
	    saveStringEnter = 0;
	    if (savegamestrings[saveSlot][0])
		M_DoSave(saveSlot);
	    break;
				
	  default:
	    ch = toupper(ch);
	    if (ch != 32)
		if (ch-HU_FONTSTART < 0 || ch-HU_FONTSTART >= HU_FONTSIZE)
		    break;
	    if (ch >= 32 && ch <= 127 &&
		saveCharIndex < SAVESTRINGSIZE-1 &&
		M_StringWidth(savegamestrings[saveSlot]) <
		(SAVESTRINGSIZE-2)*8)
	    {
		savegamestrings[saveSlot][saveCharIndex++] = ch;
		savegamestrings[saveSlot][saveCharIndex] = 0;
	    }
	    break;
	}
	return true;
    }
    
    // Take care of any messages that need input
    if (messageToPrint)
    {
	if (messageNeedsInput == true &&
	    !(ch == ' ' || ch == 'n' || ch == 'y' || ch == KEY_ESCAPE))
	    return false;
		
	menuactive = messageLastMenuActive;
	messageToPrint = 0;
	if (messageRoutine)
	    messageRoutine(ch);
			
	menuactive = false;
	S_StartSound(NULL,sfx_swtchx);
	return true;
    }
	
    if (devparm && ch == KEY_F1)
    {
	G_ScreenShot ();
	return true;
    }
		
    
    // F-Keys
    if (!menuactive)
	switch(ch)
	{
	  case KEY_MINUS:         // Screen size down
	    if (automapactive || chat_on)
		return false;
	    M_SizeDisplay(0);
	    S_StartSound(NULL,sfx_stnmov);
	    return true;
				
	  case KEY_EQUALS:        // Screen size up
	    if (automapactive || chat_on)
		return false;
	    M_SizeDisplay(1);
	    S_StartSound(NULL,sfx_stnmov);
	    return true;
				
	  case KEY_F1:            // Help key
	    M_StartControlPanel ();

	    if ( gamemode == retail )
	      currentMenu = &ReadDef2;
	    else
	      currentMenu = &ReadDef1;
	    
	    itemOn = 0;
	    S_StartSound(NULL,sfx_swtchn);
	    return true;
				
	  case KEY_F2:            // Save
	    M_StartControlPanel();
	    S_StartSound(NULL,sfx_swtchn);
	    M_SaveGame(0);
	    return true;
				
	  case KEY_F3:            // Load
	    M_StartControlPanel();
	    S_StartSound(NULL,sfx_swtchn);
	    M_LoadGame(0);
	    return true;
				
	  case KEY_F4:            // Sound Volume
	    M_StartControlPanel ();
	    currentMenu = &SoundDef;
	    itemOn = sfx_vol;
	    S_StartSound(NULL,sfx_swtchn);
	    return true;
				
	  case KEY_F5:            // Detail toggle
	    M_ChangeDetail(0);
	    S_StartSound(NULL,sfx_swtchn);
	    return true;
				
	  case KEY_F6:            // Quicksave
	    S_StartSound(NULL,sfx_swtchn);
	    M_QuickSave();
	    return true;
				
	  case KEY_F7:            // End game
	    S_StartSound(NULL,sfx_swtchn);
	    M_EndGame(0);
	    return true;
				
	  case KEY_F8:            // Toggle messages
	    M_ChangeMessages(0);
	    S_StartSound(NULL,sfx_swtchn);
	    return true;
				
	  case KEY_F9:            // Quickload
	    S_StartSound(NULL,sfx_swtchn);
	    M_QuickLoad();
	    return true;
				
	  case KEY_F10:           // Quit DOOM
	    S_StartSound(NULL,sfx_swtchn);
	    M_QuitDOOM(0);
	    return true;
				
	  case KEY_F11:           // gamma toggle
	    usegamma++;
	    if (usegamma > 4)
		usegamma = 0;
	    players[consoleplayer].message = gammamsg[usegamma];
	    I_SetPalette (W_CacheLumpName ("PLAYPAL",PU_CACHE));
	    return true;
				
	}

    
    // Pop-up menu?
    if (!menuactive)
    {
	if (ch == KEY_ESCAPE)
	{
	    M_StartControlPanel ();
	    S_StartSound(NULL,sfx_swtchn);
	    return true;
	}
	return false;
    }

    
    // Keys usable within menu
    switch (ch)
    {
      case KEY_DOWNARROW:
	do
	{
	    if (itemOn+1 > currentMenu->numitems-1)
		itemOn = 0;
	    else itemOn++;
	    S_StartSound(NULL,sfx_pstop);
	} while(currentMenu->menuitems[itemOn].status==-1);
	return true;
		
      case KEY_UPARROW:
	do
	{
	    if (!itemOn)
		itemOn = currentMenu->numitems-1;
	    else itemOn--;
	    S_StartSound(NULL,sfx_pstop);
	} while(currentMenu->menuitems[itemOn].status==-1);
	return true;

      case KEY_LEFTARROW:
	if (currentMenu->menuitems[itemOn].routine &&
	    currentMenu->menuitems[itemOn].status == 2)
	{
	    S_StartSound(NULL,sfx_stnmov);
	    currentMenu->menuitems[itemOn].routine(0);
	}
	return true;
		
      case KEY_RIGHTARROW:
	if (currentMenu->menuitems[itemOn].routine &&
	    currentMenu->menuitems[itemOn].status == 2)
	{
	    S_StartSound(NULL,sfx_stnmov);
	    currentMenu->menuitems[itemOn].routine(1);
	}
	return true;

      case KEY_ENTER:
	if (currentMenu->menuitems[itemOn].routine &&
	    currentMenu->menuitems[itemOn].status)
	{
	    currentMenu->lastOn = itemOn;
	    if (currentMenu->menuitems[itemOn].status == 2)
	    {
		currentMenu->menuitems[itemOn].routine(1);      // right arrow
		S_StartSound(NULL,sfx_stnmov);
	    }
	    else
	    {
		currentMenu->menuitems[itemOn].routine(itemOn);
		S_StartSound(NULL,sfx_pistol);
	    }
	}
	return true;
		
      case KEY_ESCAPE:
	currentMenu->lastOn = itemOn;
	M_ClearMenus ();
	S_StartSound(NULL,sfx_swtchx);
	return true;
		
      case KEY_BACKSPACE:
	currentMenu->lastOn = itemOn;
	if (currentMenu->prevMenu)
	{
	    currentMenu = currentMenu->prevMenu;
	    itemOn = currentMenu->lastOn;
	    S_StartSound(NULL,sfx_swtchn);
	}
	return true;
	
      default:
	for (i = itemOn+1;i < currentMenu->numitems;i++)
	    if (currentMenu->menuitems[i].alphaKey == ch)
	    {
		itemOn = i;
		S_StartSound(NULL,sfx_pstop);
		return true;
	    }
	for (i = 0;i <= itemOn;i++)
	    if (currentMenu->menuitems[i].alphaKey == ch)
	    {
		itemOn = i;
		S_StartSound(NULL,sfx_pstop);
		return true;
	    }
	break;
	
    }

    return false;
}



//
// M_StartControlPanel
//
void M_StartControlPanel (void)
{
    // intro might call this repeatedly
    if (menuactive)
	return;
    
    menuactive = 1;
    currentMenu = &MainDef;         // JDC
    itemOn = currentMenu->lastOn;   // JDC
}


//
// M_Drawer
// Called after the view has been rendered,
// but before it has been blitted.
//
void M_Drawer (void)
{
    static short	x;
    static short	y;
    short		i;
    short		max;
    char		string[40];
    int			start;

    inhelpscreens = false;

    
    // Horiz. & Vertically center string and print it.
    if (messageToPrint)
    {
	start = 0;
	y = 100 - M_StringHeight(messageString)/2;
	while(*(messageString+start))
	{
	    for (i = 0;i < strlen(messageString+start);i++)
		if (*(messageString+start+i) == '\n')
		{
		    memset(string,0,40);
		    strncpy(string,messageString+start,i);
		    start += i+1;
		    break;
		}
				
	    if (i == strlen(messageString+start))
	    {
		strcpy(string,messageString+start);
		start += i;
	    }
				
	    x = 160 - M_StringWidth(string)/2;
	    M_WriteText(x,y,string);
	    y += SHORT(hu_font[0]->height);
	}
	return;
    }

    if (!menuactive)
	return;

    if (currentMenu->routine)
	currentMenu->routine();         // call Draw routine
    
    // DRAW MENU
    x = currentMenu->x;
    y = currentMenu->y;
    max = currentMenu->numitems;

    for (i=0;i<max;i++)
    {
	if (currentMenu->menuitems[i].name[0])
	    V_DrawPatchDirect (x,y,0,
			       W_CacheLumpName(currentMenu->menuitems[i].name ,PU_CACHE));
	y += LINEHEIGHT;
    }

    
    // DRAW SKULL
    V_DrawPatchDirect(x + SKULLXOFF,currentMenu->y - 5 + itemOn*LINEHEIGHT, 0,
		      W_CacheLumpName(skullName[whichSkull],PU_CACHE));

}


//
// M_ClearMenus
//
void M_ClearMenus (void)
{
    menuactive = 0;
    // if (!netgame && usergame && paused)
    //       sendpause = true;
}




//
// M_SetupNextMenu
//
void M_SetupNextMenu(menu_t *menudef)
{
    currentMenu = menudef;
    itemOn = currentMenu->lastOn;
}


//
// M_Ticker
//
void M_Ticker (void)
{
    if (--skullAnimCounter <= 0)
    {
	whichSkull ^= 1;
	skullAnimCounter = 8;
    }
}


//
// M_Init
//
void M_Init (void)
{
    currentMenu = &MainDef;
    menuactive = 0;
    itemOn = currentMenu->lastOn;
    whichSkull = 0;
    skullAnimCounter = 10;
    screenSize = screenblocks - 3;
    messageToPrint = 0;
    messageString = NULL;
    messageLastMenuActive = menuactive;
    quickSaveSlot = -1;

    // Here we could catch other version dependencies,
    //  like HELP1/2, and four episodes.

  
    switch ( gamemode )
    {
      case commercial:
	// This is used because DOOM 2 had only one HELP
        //  page. I use CREDIT as second page now, but
	//  kept this hack for educational purposes.
	MainMenu[readthis] = MainMenu[quitdoom];
	MainDef.numitems--;
	MainDef.y += 8;
	NewDef.prevMenu = &MainDef;
	ReadDef1.routine = M_DrawReadThis1;
	ReadDef1.x = 330;
	ReadDef1.y = 165;
	ReadMenu1[0].routine = M_FinishReadThis;
	break;
      case shareware:
	// Episode 2 and 3 are handled,
	//  branching to an ad screen.
      case registered:
	// We need to remove the fourth episode.
	EpiDef.numitems--;
	break;
      case retail:
	// We are fine.
      default:
	break;
    }
    
}