自学教程：C++ Draw_Pic函数代码示例

/*==============SCR_DrawLoading==============*/void SCR_DrawLoading (void){	qpic_t	*pic;	if (!scr_drawloading)		return;			pic = Draw_CachePic ("gfx/loading.lmp");	Draw_Pic ( (vid.width - pic->width)/2, 		(vid.height - 48 - pic->height)/2, pic);}

/*	SCR_DrawNet*/voidSCR_DrawNet (void){	if (cls.netchan.outgoing_sequence - cls.netchan.incoming_acknowledged <		UPDATE_BACKUP - 1)		return;	if (cls.demoplayback)		return;	Draw_Pic (scr_vrect.x + 64, scr_vrect.y, scr_net);}

/*==============SCR_DrawNet==============*/void SCR_DrawNet (void){	if (realtime - cl.last_received_message < 0.3)		return;	if (cls.demoplayback)		return;	GL_SetCanvas (CANVAS_DEFAULT); //johnfitz	Draw_Pic (scr_vrect.x+64, scr_vrect.y, scr_net);}

/*	SCR_DrawRam*/voidSCR_DrawRam (void){	if (!scr_showram->int_val)		return;	if (!r_cache_thrash)		return;	Draw_Pic (scr_vrect.x + 32, scr_vrect.y, scr_ram);}

/*==============SCR_DrawPause==============*/void SCR_DrawPause (void){	int		w, h;	if (!scr_showpause->value)		// turn off for screenshots		return;	if (!cl_paused->value)		return;	Draw_GetPicSize (&w, &h, "pause");	Draw_Pic ((viddef.width-w)/2, viddef.height/2 + 8, "pause");}

/*==============DrawPause==============*/void SCR_DrawPause (void){	qpic_t	*pic;	if (!scr_showpause.value)		// turn off for screenshots		return;	if (!cl.paused)		return;	pic = Draw_CachePic ("gfx/pause.lmp");	Draw_Pic ( (vid.width - pic->width)/2, (vid.height - 48 - pic->height)/2, pic);}

 /* ========================================================================= */ void VID_MenuDraw ( void ) {   q_int32_t w, h;   /* draw the banner */   Draw_GetPicSize ( &w, &h, "m_banner_video" );   Draw_Pic ( viddef.width / 2 - w / 2, viddef.height / 2 - 110,              "m_banner_video" );   /* move cursor to a reasonable starting position */   Menu_AdjustCursor ( &s_opengl_menu, 1 );   /* draw the menu */   Menu_Draw ( &s_opengl_menu ); }

voidSCR_DrawField(int x, int y, int color, int width, int value){	char num[16], *ptr;	int l;	int frame;	if (width < 1)	{		return;	}	/* draw number string */	if (width > 5)	{		width = 5;	}	SCR_AddDirtyPoint(x, y);	SCR_AddDirtyPoint(x + width * CHAR_WIDTH + 2, y + 23);	Com_sprintf(num, sizeof(num), "%i", value);	l = (int)strlen(num);	if (l > width)	{		l = width;	}	x += 2 + CHAR_WIDTH * (width - l);	ptr = num;	while (*ptr && l)	{		if (*ptr == '-')		{			frame = STAT_MINUS;		}		else		{			frame = *ptr - '0';		}		Draw_Pic(x, y, sb_nums[color][frame]);		x += CHAR_WIDTH;		ptr++;		l--;	}}

/*==============DrawPause==============*/void SCR_DrawPause (void){	quake::sprite pic;	if (!scr_showpause.to_bool())		// turn off for screenshots		return;	if (!cl.paused)		return;	pic = Draw_CachePic ("gfx/pause.lmp");	Draw_Pic ( (vid.width - pic.width)/2, 		(vid.height - 48 - pic.height)/2, pic);}

voidSCR_DrawLoading(void){	int w, h;	if (!scr_draw_loading)	{		return;	}	scr_draw_loading = false;	Draw_GetPicSize(&w, &h, "loading");	Draw_Pic((viddef.width - w) / 2, (viddef.height - h) / 2, "loading");}

/*=============Draw_TransPicTranslate -- johnfitz -- rewritten to use texmgr to do translationOnly used for the player color selection menu=============*/void Draw_TransPicTranslate (int x, int y, qpic_t *pic, int top, int bottom){	static int oldtop = -2;	static int oldbottom = -2;	if (top != oldtop || bottom != oldbottom)	{		glpic_t *p = (glpic_t *)pic->data;		gltexture_t *glt = p->gltexture;		oldtop = top;		oldbottom = bottom;		TexMgr_ReloadImage (glt, top, bottom);	}	Draw_Pic (x, y, pic);}

/*==============SCR_DrawTurtle==============*/void SCR_DrawTurtle (void){	static int	count;	if (!scr_showturtle.value)		return;	if (host_frametime < 0.1)	{		count = 0;		return;	}	count++;	if (count < 3)		return;	Draw_Pic (scr_vrect.x, scr_vrect.y, scr_turtle);}

/*================VID_MenuDraw================*/void VID_MenuDraw (menuframework_s *self){    int w, h;    /*    ** draw the banner    */    Draw_GetPicSize( &w, &h, "m_banner_video" );    Draw_Pic( viddef.width / 2 - w / 2, viddef.height /2 - 110, "m_banner_video", 1 );    /*    ** move cursor to a reasonable starting position    */    Menu_AdjustCursor( self, 1 );    /*    ** draw the menu    */    Menu_Draw( self );}

/*==============SCR_DrawTurtle==============*/void SCR_DrawTurtle (void){	static int	count;	if (!scr_showturtle->value)		return;// 2001-10-20 TIMESCALE extension by Tomaz/Maddes  start//	if (host_frametime < 0.1)	if (host_cpu_frametime < 0.1)// 2001-10-20 TIMESCALE extension by Tomaz/Maddes  end	{		count = 0;		return;	}	count++;	if (count < 3)		return;	Draw_Pic (scr_vrect.x, scr_vrect.y, scr_turtle);}

void Draw_ScaledPic (int x, int y, float scale, const char *pic, float red, float green, float blue, float alpha){	Draw_Pic (x, y, pic, 1);}

/*================SCR_ExecuteLayoutString ================*/void SCR_ExecuteLayoutString (char *s){	int		x, y;	int		value;	char	*token;	int		width;	int		index;	clientinfo_t	*ci;	if (cls.state != ca_active || !cl.refresh_prepped)		return;	if (!s[0])		return;	x = 0;	y = 0;	width = 3;	while (s)	{		token = COM_Parse (&s);		if (!strcmp(token, "xl"))		{			token = COM_Parse (&s);			x = atoi(token);			continue;		}		if (!strcmp(token, "xr"))		{			token = COM_Parse (&s);			x = viddef.width + atoi(token);			continue;		}		if (!strcmp(token, "xv"))		{			token = COM_Parse (&s);			x = viddef.width/2 - 160 + atoi(token);			continue;		}		if (!strcmp(token, "yt"))		{			token = COM_Parse (&s);			y = atoi(token);			continue;		}		if (!strcmp(token, "yb"))		{			token = COM_Parse (&s);			y = viddef.height + atoi(token);			continue;		}		if (!strcmp(token, "yv"))		{			token = COM_Parse (&s);			y = viddef.height/2 - 120 + atoi(token);			continue;		}		if (!strcmp(token, "pic"))		{	// draw a pic from a stat number			token = COM_Parse (&s);			value = cl.frame.playerstate.stats[atoi(token)];			if (value >= MAX_IMAGES)				Com_Error (ERR_DROP, "Pic >= MAX_IMAGES");			if (cl.configstrings[CS_IMAGES+value])			{				SCR_AddDirtyPoint (x, y);				SCR_AddDirtyPoint (x+23, y+23);				Draw_Pic (x, y, cl.configstrings[CS_IMAGES+value]);			}			continue;		}		if (!strcmp(token, "client"))		{	// draw a deathmatch client block			int		score, ping, time;			token = COM_Parse (&s);			x = viddef.width/2 - 160 + atoi(token);			token = COM_Parse (&s);			y = viddef.height/2 - 120 + atoi(token);			SCR_AddDirtyPoint (x, y);			SCR_AddDirtyPoint (x+159, y+31);			token = COM_Parse (&s);			value = atoi(token);			if (value >= MAX_CLIENTS || value < 0)				Com_Error (ERR_DROP, "client >= MAX_CLIENTS");			ci = &cl.clientinfo[value];			token = COM_Parse (&s);			score = atoi(token);//.........这里部分代码省略.........

voidSCR_ExecuteLayoutString(char *s){	int x, y;	int value;	char *token;	int width;	int index;	clientinfo_t *ci;	if ((cls.state != ca_active) || !cl.refresh_prepped)	{		return;	}	if (!s[0])	{		return;	}	x = 0;	y = 0;	while (s)	{		token = COM_Parse(&s);		if (!strcmp(token, "xl"))		{			token = COM_Parse(&s);			x = (int)strtol(token, (char **)NULL, 10);			continue;		}		if (!strcmp(token, "xr"))		{			token = COM_Parse(&s);			x = viddef.width + (int)strtol(token, (char **)NULL, 10);			continue;		}		if (!strcmp(token, "xv"))		{			token = COM_Parse(&s);			x = viddef.width / 2 - 160 + (int)strtol(token, (char **)NULL, 10);			continue;		}		if (!strcmp(token, "yt"))		{			token = COM_Parse(&s);			y = (int)strtol(token, (char **)NULL, 10);			continue;		}		if (!strcmp(token, "yb"))		{			token = COM_Parse(&s);			y = viddef.height + (int)strtol(token, (char **)NULL, 10);			continue;		}		if (!strcmp(token, "yv"))		{			token = COM_Parse(&s);			y = viddef.height / 2 - 120 + (int)strtol(token, (char **)NULL, 10);			continue;		}		if (!strcmp(token, "pic"))		{			/* draw a pic from a stat number */			token = COM_Parse(&s);			index = (int)strtol(token, (char **)NULL, 10);			if ((index < 0) || (index >= sizeof(cl.frame.playerstate.stats)))			{				Com_Error(ERR_DROP, "bad stats index %d (0x%x)", index, index);			}			value = cl.frame.playerstate.stats[index];			if (value >= MAX_IMAGES)			{				Com_Error(ERR_DROP, "Pic >= MAX_IMAGES");			}			if (cl.configstrings[CS_IMAGES + value])			{				SCR_AddDirtyPoint(x, y);				SCR_AddDirtyPoint(x + 23, y + 23);				Draw_Pic(x, y, cl.configstrings[CS_IMAGES + value]);			}			continue;		}		if (!strcmp(token, "client"))		{			/* draw a deathmatch client block *///.........这里部分代码省略.........

/*==================Sbar_DeathmatchOverlayping time frags name==================*/voidSbar_DeathmatchOverlay(int start){    const qpic_t *pic;    int i, k, l;    int top, bottom;    int x, y, f;    char num[12];    player_info_t *s;    int total;    int minutes;    int p;    int teamplay;    char team[5];    int skip = 10;    if (largegame)	skip = 8;// request new ping times every two second    if (realtime - cl.last_ping_request > 2) {	cl.last_ping_request = realtime;	MSG_WriteByte(&cls.netchan.message, clc_stringcmd);	MSG_WriteString(&cls.netchan.message, "pings");    }    teamplay = atoi(Info_ValueForKey(cl.serverinfo, "teamplay"));    scr_copyeverything = 1;    scr_fullupdate = 0;    if (!start) {	pic = Draw_CachePic("gfx/ranking.lmp");	Draw_Pic(160 - pic->width / 2, 0, pic);    }// scores    Sbar_SortFrags(true);// draw the text    l = scoreboardlines;    if (start)	y = start;    else	y = 24;    if (teamplay) {	x = 4;//                            0    40 64   104   152  192	Draw_String(x, y, "ping pl time frags team name");	y += 8;//              Draw_String ( x , y, "---- -- ---- ----- ---- ----------------");	Draw_String(x, y,		    "/x1d/x1e/x1e/x1f /x1d/x1f /x1d/x1e/x1e/x1f /x1d/x1e/x1e/x1e/x1f /x1d/x1e/x1e/x1f /x1d/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1f");	y += 8;    } else {	x = 16;//                            0    40 64   104   152	Draw_String(x, y, "ping pl time frags name");	y += 8;//              Draw_String ( x , y, "---- -- ---- ----- ----------------");	Draw_String(x, y,		    "/x1d/x1e/x1e/x1f /x1d/x1f /x1d/x1e/x1e/x1f /x1d/x1e/x1e/x1e/x1f /x1d/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1f");	y += 8;    }    for (i = 0; i < l && y <= vid.height - 10; i++) {	k = fragsort[i];	s = &cl.players[k];	if (!s->name[0])	    continue;	// draw ping	p = s->ping;	if (p < 0 || p > 999)	    p = 999;	sprintf(num, "%4i", p);	Draw_String(x, y, num);	// draw pl	p = s->pl;	sprintf(num, "%3i", p);	if (p > 25)	    Draw_Alt_String(x + 32, y, num);	else	    Draw_String(x + 32, y, num);	if (s->spectator) {	    Draw_String(x + 40, y, "(spectator)");	    // draw name	    if (teamplay)		Draw_String(x + 152 + 40, y, s->name);	    else		Draw_String(x + 152, y, s->name);//.........这里部分代码省略.........

/*==================Sbar_TeamOverlayteam fragsadded by Zoid==================*/voidSbar_TeamOverlay(void){    const qpic_t *pic;    int i, k;    int x, y;    char num[12];    int teamplay;    char team[5];    team_t *tm;    int plow, phigh, pavg;// request new ping times every two second    teamplay = atoi(Info_ValueForKey(cl.serverinfo, "teamplay"));    if (!teamplay) {	Sbar_DeathmatchOverlay(0);	return;    }    scr_copyeverything = 1;    scr_fullupdate = 0;    pic = Draw_CachePic("gfx/ranking.lmp");    Draw_Pic(160 - pic->width / 2, 0, pic);    y = 24;    x = 36;    Draw_String(x, y, "low/avg/high team total players");    y += 8;//      Draw_String(x, y, "------------ ---- ----- -------");    Draw_String(x, y,		"/x1d/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1e/x1f /x1d/x1e/x1e/x1f /x1d/x1e/x1e/x1e/x1f /x1d/x1e/x1e/x1e/x1e/x1e/x1f");    y += 8;// sort the teams    Sbar_SortTeams();// draw the text    for (i = 0; i < scoreboardteams && y <= vid.height - 10; i++) {	k = teamsort[i];	tm = teams + k;	// draw pings	plow = tm->plow;	if (plow < 0 || plow > 999)	    plow = 999;	phigh = tm->phigh;	if (phigh < 0 || phigh > 999)	    phigh = 999;	if (!tm->players)	    pavg = 999;	else	    pavg = tm->ptotal / tm->players;	if (pavg < 0 || pavg > 999)	    pavg = 999;	sprintf(num, "%3i/%3i/%3i", plow, pavg, phigh);	Draw_String(x, y, num);	// draw team	team[4] = 0;	strncpy(team, tm->team, 4);	Draw_String(x + 104, y, team);	// draw total	sprintf(num, "%5i", tm->frags);	Draw_String(x + 104 + 40, y, num);	// draw players	sprintf(num, "%5i", tm->players);	Draw_String(x + 104 + 88, y, num);	if (!strncmp(Info_ValueForKey(cl.players[cl.playernum].userinfo,				      "team"), tm->team, 16)) {	    Draw_Character(x + 104 - 8, y, 16);	    Draw_Character(x + 104 + 32, y, 17);	}	y += 8;    }    y += 8;    Sbar_DeathmatchOverlay(y);}

/*=============Sbar_DrawPic=============*/voidSbar_DrawPic(int x, int y, const qpic_t *pic){    Draw_Pic(x /* + ((vid.width - 320)>>1) */ ,	     y + (vid.height - SBAR_HEIGHT), pic);}