add in function g_setdisplayplayer

add in g_setdisplayplayer as an alternate way to call the F12 key press
manually

src/g_game.c

@@ -5670,3 +5670,48 @@ INT32 G_TicsToMilliseconds(tic_t tics)
 	return (INT32)((tics%TICRATE) * (1000.00f/TICRATE));
 }
 
+//miru: change the displayed player
+// player - player to forward the function to
+// displayNumber - the player number (node) to view
+// setAllDisplays - set all displays to the player number/node specified
+void G_SetDisplayPlayer(player_t *player, INT32 displayNumber, boolean setAllDisplays)
+{
+    //TODO: fix black flashes when touching controls (this has to do with
+    //((cmd->forwardmove || cmd->sidemove || cmd->buttons) && displayplayer != consoleplayer) )
+    //TODO: proper implementation for using player node instead of -1 (unsure how)
+	if (gamestate == GS_LEVEL)
+	{
+	    // no, not for non-sp
+		if (!netgame)
+			displayplayer = consoleplayer;
+		else
+		{
+            // the player has to exist or you just get a bleeding display
+            if (playeringame[displayNumber] || players[displayplayer].spectator && player == &players[displayplayer])
+            {
+                // switch the display number locally
+                if (P_IsLocalPlayer(player) && displayplayer == consoleplayer)
+                {
+                    displayplayer = displayNumber;
+                }
+                // or force all
+                else if (setAllDisplays == true)
+                {
+                    displayplayer = displayNumber;
+                }
+
+                // tell who's the view
+                //CONS_Printf(M_GetText("Viewpoint: %s\n"), player_names[displayplayer]);
+            }
+            // Setting as -1 resets your view to normal
+            else if (displayNumber == -1 && P_IsLocalPlayer(player)
+                     && displayplayer != consoleplayer)
+                displayplayer = consoleplayer;
+            else
+            {
+                // or do...nothing
+                //CONS_Printf("Player doesn't exist (or viewing self).\n");
+            }
+		}
+	}
+}

src/g_game.h

@@ -216,4 +216,6 @@ FUNCMATH INT32 G_TicsToMilliseconds(tic_t tics);
 // Don't split up TOL handling
 INT16 G_TOLFlag(INT32 pgametype);
 
+void G_SetDisplayPlayer(player_t *player, INT32 displayNumber, boolean setAllDisplays);
+
 #endif

src/lua_baselib.c

@@ -1827,6 +1827,19 @@ static int lib_pSetActiveMotionBlur(lua_State *L)
 	return 0;
 }
 
+static int lib_gSetDisplayPlayer(lua_State *L)
+{
+    // set args 1 2 & 3
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	INT32 dispnum = luaL_checkint(L, 2);
+	boolean alldisps = luaL_checkboolean(L, 3);
+	NOHUD
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	G_SetDisplayPlayer(player, dispnum, alldisps);
+	return 0;
+}
+
 //=====================================================================
 
 
@@ -2214,6 +2227,7 @@ static luaL_Reg lib[] = {
 	{"S_GetMusicPosition",lib_sGetMusicPosition},
 	{"S_FadeOutMusic",lib_sFadeOutMusic},
 	{"P_SetActiveMotionBlur",lib_pSetActiveMotionBlur},
+    {"G_SetDisplayPlayer",lib_gSetDisplayPlayer},
 
 	{NULL, NULL}
 };

src/st_stuff.c

@@ -1829,8 +1829,9 @@ static void ST_overlayDrawer(void)
 			strlcpy(name, player_names[stplyr-players], 13);
 
 			// Show name of player being displayed
-			V_DrawCenteredString((BASEVIDWIDTH/6), BASEVIDHEIGHT-80, 0, M_GetText("Viewpoint:"));
-			V_DrawCenteredString((BASEVIDWIDTH/6), BASEVIDHEIGHT-64, V_ALLOWLOWERCASE, name);
+			// miru: do something about this "viewpoint:", make it optional or non-existent
+			V_DrawCenteredString((BASEVIDWIDTH/6), BASEVIDHEIGHT-80, V_90TRANS, M_GetText("Viewpoint:"));
+			V_DrawCenteredString((BASEVIDWIDTH/6), BASEVIDHEIGHT-64, V_90TRANS|V_ALLOWLOWERCASE, name);
 		}
 
 		// This is where we draw all the fun cheese if you have the chasecam off!