Add nzp_screenflash builtin

source/cl_hud.c

@@ -75,6 +75,11 @@ char player_name[16];
 
 extern cvar_t waypoint_mode;
 
+int screenflash_color;
+double screenflash_duration;
+int screenflash_type;
+double screenflash_worktime;
+double screenflash_starttime;
 
 int old_points;
 int current_points;
@@ -1420,6 +1425,75 @@ void HUD_PlayerName (void)
 	Draw_ColoredString(70, 170, player_name, 255, 255, 255, alpha, 1);
 }
 
+/*
+===============
+HUD_Screenflash
+===============
+*/
+
+//
+// Types of screen-flashes.
+//
+
+// Colors
+#define SCREENFLASH_COLOR_WHITE			0
+#define SCREENFLASH_COLOR_BLACK			1
+
+// Types
+#define SCREENFLASH_FADE_INANDOUT		0
+#define SCREENFLASH_FADE_IN 			1
+#define SCREENFLASH_FADE_OUT 			2
+
+//
+// invert float takes in float value between 0 and 1, inverts position
+// eg: 0.1 returns 0.9, 0.34 returns 0.66
+float invertfloat(float input) {
+    if (input < 0)
+        return 0; // adjust to lower boundary
+    else if (input > 1)
+        return 1; // adjust to upper boundary
+    else
+        return (1 - input);
+}
+
+void HUD_Screenflash (void)
+{
+	int r, g, b, a;
+	float flash_alpha;
+
+	double percentage_complete = screenflash_worktime / (screenflash_duration - screenflash_starttime);
+
+	// Fade Out
+	if (screenflash_type == SCREENFLASH_FADE_OUT) {
+		flash_alpha = invertfloat((float)percentage_complete);
+	}
+	// Fade In
+	else if (screenflash_type == SCREENFLASH_FADE_IN) {
+		flash_alpha = (float)percentage_complete;
+	}
+	// Fade In + Fade Out
+	else {
+		// Fade In
+		if (percentage_complete < 0.5) {
+			flash_alpha = (float)percentage_complete;
+		} 
+		// Fade Out
+		else {
+			flash_alpha = invertfloat((float)percentage_complete);
+		}
+	}
+
+	// Obtain the flash color
+	switch(screenflash_color) {
+		case SCREENFLASH_COLOR_BLACK: r = 0; g = 0; b = 0; a = (int)(flash_alpha * 255); break;
+		case SCREENFLASH_COLOR_WHITE: r = 255; g = 255; b = 255; a = (int)(flash_alpha * 255); break;
+		default: r = 255; g = 0; b = 0; a = 255; break;
+	}
+
+	screenflash_worktime += host_frametime;
+	Draw_FillByColor(0, 0, vid.width, vid.height, r, g, b, a);
+}
+
 /*
 ===============
 HUD_Draw
@@ -1430,8 +1504,12 @@ void HUD_Draw (void)
 	if (scr_con_current == vid.height)
 		return;		// console is full screen
 
-	if (key_dest == key_menu_pause)
+	if (key_dest == key_menu_pause) {
+		// Make sure we still draw the screen flash.
+		if (screenflash_duration > sv.time)
+			HUD_Screenflash();
 		return;
+	}
 
 	scr_copyeverything = 1;
 
@@ -1452,6 +1530,10 @@ void HUD_Draw (void)
 	if (cl.stats[STAT_HEALTH] <= 0)
 	{
 		HUD_EndScreen ();
+
+		// Make sure we still draw the screen flash.
+		if (screenflash_duration > sv.time)
+			HUD_Screenflash();
 		return;
 	}
 
@@ -1484,4 +1566,8 @@ void HUD_Draw (void)
 		}
 		HUD_MaxAmmo();
 	}
+
+	// This should always come last!
+	if (screenflash_duration > sv.time)
+		HUD_Screenflash();
 }

source/cl_hud.h

@@ -52,4 +52,10 @@ extern qpic_t *achievement_locked;
 extern char player_name[16];
 extern double nameprint_time;
 
+extern int screenflash_color;
+extern double screenflash_duration;
+extern int screenflash_type;
+extern double screenflash_worktime;
+extern double screenflash_starttime;
+
 void HUD_Parse_Achievement (int ach);

source/cl_parse.c

@@ -1125,6 +1125,14 @@ void CL_ParseServerMessage (void)
 			doubletap_has_damage_buff = MSG_ReadByte();
 			break;
 
+		case svc_screenflash:
+			screenflash_color = MSG_ReadByte();
+			screenflash_duration = sv.time + MSG_ReadByte();
+			screenflash_type = MSG_ReadByte();
+			screenflash_worktime = 0;
+			screenflash_starttime = sv.time;
+			break;
+
 		case svc_bettyprompt:
 			bettyprompt_time = sv.time + 4;
 			break;

source/host_cmd.c

@@ -1313,7 +1313,6 @@ void Host_Spawn_f (void)
 			Sys_Printf ("%s entered the game\n", host_client->name);
 
 		PR_ExecuteProgram (pr_global_struct->PutClientInServer);	
-		S_LocalSound ("sounds/rounds/splash.wav");   // since this won't execute in progs...
 	}
 
 

source/pr_cmds.c

@@ -3318,6 +3318,44 @@ void PF_SetDoubleTapVersion(void)
 	MSG_WriteByte (&client->message, state);
 }
 
+/*
+=================
+PF_ScreenFlash
+
+Server tells client to flash on screen
+for a short (but specified) moment.
+
+nzp_screenflash(target, color, duration, type)
+=================
+*/
+void PF_ScreenFlash(void)
+{
+	client_t	*client;
+	int			entnum;
+	int 		color, duration, type;
+
+	entnum = G_EDICTNUM(OFS_PARM0);
+	color = G_FLOAT(OFS_PARM1);
+	duration = G_FLOAT(OFS_PARM2);
+	type = G_FLOAT(OFS_PARM3);
+
+	// Specified world, or something. Send to everyone.
+	if (entnum < 1 || entnum > svs.maxclients) {
+		MSG_WriteByte(&sv.reliable_datagram, svc_screenflash);
+		MSG_WriteByte(&sv.reliable_datagram, color);
+		MSG_WriteByte(&sv.reliable_datagram, duration);
+		MSG_WriteByte(&sv.reliable_datagram, type);
+	} 
+	// Send to specific user
+	else {
+		client = &svs.clients[entnum-1];
+		MSG_WriteByte (&client->message, svc_screenflash);
+		MSG_WriteByte (&client->message, color);
+		MSG_WriteByte (&client->message, duration);
+		MSG_WriteByte (&client->message, type);
+	}
+}
+
 /*
 =================
 PF_BettyPrompt
@@ -3992,6 +4030,7 @@ PF_MaxZombies, // #503
 PF_BettyPrompt, // #504
 PF_SetPlayerName, // #505
 PF_SetDoubleTapVersion, // #506
+PF_ScreenFlash, // #507
 PF_Fixme,
 };
 

source/protocol.h

@@ -158,6 +158,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #define svc_bettyprompt		47
 #define svc_playername 		48
 #define svc_doubletap		49
+#define svc_screenflash		50		// [byte] color [byte] duration [byte] type
 
 //
 // client to server