From cf110b5ea0a47a0ca97c96eddb729cb3b222f2b0 Mon Sep 17 00:00:00 2001
From: Denis Pauk <pauk.denis@gmail.com>
Date: Sat, 13 Aug 2022 15:54:48 +0300
Subject: [PATCH] game: Add spawn on start point

It could be used for spawn weapon or opponnent for coop at spawn point.
---
 doc/050_commands.md  |  4 +++
 src/client/cl_main.c |  1 +
 src/game/g_cmds.c    | 66 +++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 70 insertions(+), 1 deletion(-)

diff --git a/doc/050_commands.md b/doc/050_commands.md
index fee62b8b..e01e8e10 100644
--- a/doc/050_commands.md
+++ b/doc/050_commands.md
@@ -26,11 +26,15 @@ original clients (Vanilla Quake II) commands are still in place.
   whitespaces. The special class `all` lists the coordinates of all
   entities.
 
+* **viewpos**: Show player position.
+
 * **teleport <x y z>**: Teleports the player to the given coordinates.
 
 * **spawnentity classname x y z <angle_x angle_y angle_z> <flags>**:
   Spawn new entity of `classname` at `x y z` coordinates.
 
+* **spawnonstart classname**: Spawn new entity of `classname` at start point.
+
 * **listmaps**: Lists available maps for the player to load. Maps from
   loaded pak files will be listed first followed by maps placed in 
   the current game's maps folder.
diff --git a/src/client/cl_main.c b/src/client/cl_main.c
index b1700ce1..4f1565b6 100644
--- a/src/client/cl_main.c
+++ b/src/client/cl_main.c
@@ -613,6 +613,7 @@ CL_InitLocal(void)
 	Cmd_AddCommand("listentities", NULL);
 	Cmd_AddCommand("teleport", NULL);
 	Cmd_AddCommand("spawnentity", NULL);
+	Cmd_AddCommand("spawnonstart", NULL);
 	Cmd_AddCommand("cycleweap", NULL);
 }
 
diff --git a/src/game/g_cmds.c b/src/game/g_cmds.c
index f5bc1f6d..52544c63 100644
--- a/src/game/g_cmds.c
+++ b/src/game/g_cmds.c
@@ -1325,7 +1325,67 @@ Cmd_SpawnEntity_f(edict_t *ent)
 	ED_CallSpawn(ent);
 }
 
-void
+static void
+Cmd_SpawnOnStartByClass(const char *classname, const vec3_t origin)
+{
+	edict_t *opponent = G_Spawn();
+
+	// set position
+	opponent->s.origin[0] = origin[0];
+	opponent->s.origin[1] = origin[1];
+	opponent->s.origin[2] = origin[2];
+	// and class
+	opponent->classname = strdup(classname);
+
+	ED_CallSpawn(opponent);
+
+	gi.dprintf("Spawned entity at %f %f %f\n",
+		origin[0], origin[1], origin[2]);
+}
+
+static void
+Cmd_SpawnOnStart_f(edict_t *ent)
+{
+	edict_t *cur = NULL;
+
+	if (!ent)
+	{
+		return;
+	}
+
+	if ((deathmatch->value || coop->value) && !sv_cheats->value)
+	{
+		gi.cprintf(ent, PRINT_HIGH,
+			"You must run the server with '+set cheats 1' to enable this command.\n");
+		return;
+	}
+
+	if (gi.argc() != 2)
+	{
+		gi.cprintf(ent, PRINT_HIGH, "Usage: spawnonstart classname\n");
+		return;
+	}
+
+	while ((cur = G_Find(cur, FOFS(classname),
+		"info_player_deathmatch")) != NULL)
+	{
+		Cmd_SpawnOnStartByClass(gi.argv(1), cur->s.origin);
+	}
+
+	while ((cur = G_Find(cur, FOFS(classname),
+		"info_player_coop")) != NULL)
+	{
+		Cmd_SpawnOnStartByClass(gi.argv(1), cur->s.origin);
+	}
+
+	while ((cur = G_Find(cur, FOFS(classname),
+		"info_player_start")) != NULL)
+	{
+		Cmd_SpawnOnStartByClass(gi.argv(1), cur->s.origin);
+	}
+}
+
+static void
 Cmd_ListEntities_f(edict_t *ent)
 {
 	if ((deathmatch->value || coop->value) && !sv_cheats->value)
@@ -1871,6 +1931,10 @@ ClientCommand(edict_t *ent)
 	{
 		Cmd_SpawnEntity_f(ent);
 	}
+	else if (Q_stricmp(cmd, "spawnonstart") == 0)
+	{
+		Cmd_SpawnOnStart_f(ent);
+	}
 	else if (Q_stricmp(cmd, "listentities") == 0)
 	{
 		Cmd_ListEntities_f(ent);