From 0b75388ace3555d1723e8a11bddd4540d966c371 Mon Sep 17 00:00:00 2001
From: Marco Hladik <marco@icculus.org>
Date: Tue, 8 Sep 2020 03:36:49 +0200
Subject: [PATCH] game_player_equip: Initial implementation.

---
 src/gs-entbase/server.src                   |   1 +
 src/gs-entbase/server/game_player_equip.cpp | 134 ++++++++++++++++++++
 2 files changed, 135 insertions(+)
 create mode 100644 src/gs-entbase/server/game_player_equip.cpp

diff --git a/src/gs-entbase/server.src b/src/gs-entbase/server.src
index 3928324d..08837bd1 100644
--- a/src/gs-entbase/server.src
+++ b/src/gs-entbase/server.src
@@ -28,6 +28,7 @@ server/env_render.cpp
 server/env_shake.cpp
 server/env_message.cpp
 server/game_text.cpp
+server/game_player_equip.cpp
 server/path_corner.cpp
 server/path_track.cpp
 server/func_recharge.cpp
diff --git a/src/gs-entbase/server/game_player_equip.cpp b/src/gs-entbase/server/game_player_equip.cpp
new file mode 100644
index 00000000..b2316d77
--- /dev/null
+++ b/src/gs-entbase/server/game_player_equip.cpp
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2016-2020 Marco Hladik <marco@icculus.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*QUAKED game_player_equip (1 0 0) (-8 -8 -8) (8 8 8) GPEFL_TRIGGERONLY
+"targetname"    Name
+"master"        Team Master
+
+Entity that emits items when triggered, or upon player spawn (MP-only).
+
+When the flag GPEFL_TRIGGERONLY is set, the entity has to be triggered
+in order to 'give' the activator the item. Otherwise it'll automatically
+'give' every client its noted items upon spawning.
+However, this only applies to Multiplayer games. In Singleplayer, the entity
+will only work with GPEFL_TRIGGERONLY being set.
+
+Notes:
+I say 'give' very loosely because the entity spawns the item in physical pickup
+form above the player. As you can imagine, it's kind of wasteful but this is the
+expected behaviour. Some modifications might depend on that...
+
+I still need to implement the Team Master functionality.
+
+Trivia:
+This entity was introduced in Half-Life (1998).
+*/
+
+enumflags
+{
+	GPEFL_TRIGGERONLY
+};
+
+class game_player_equip:CBaseTrigger
+{
+	string m_strBuffer;
+
+	void(void) game_player_equip;
+
+	virtual void(string, vector) SpawnUnit;
+	virtual void(entity, int) Trigger;
+};
+
+void
+game_player_equip::SpawnUnit(string cname, vector org)
+{
+	static void game_player_equip_spawnunit(void) {
+		/* these might get overwritten by the spawnfunction */
+		vector neworg = self.origin;
+
+		/* become the classname assigned */
+		CBaseEntity t = (CBaseEntity)self;
+		callfunction(self.classname);
+
+		/* apply the saved values back */
+		t.origin = t.m_oldOrigin = neworg;
+
+		/* spawn anew */
+		t.Respawn();
+	}
+
+	entity unit = spawn();
+	unit.classname = cname;
+	unit.think = game_player_equip_spawnunit;
+	unit.nextthink = time;
+	unit.real_owner = this;
+	setorigin(unit, org);
+	dprint(sprintf("^2game_player_equip::^3Trigger^7: Spawning %s\n",
+	       cname));
+}
+
+void
+game_player_equip::Trigger(entity act, int state)
+{
+	int total, i, count, x;
+	string cname;
+
+	if (!(act.flags & FL_CLIENT)) {
+		print("^1game_player_equip^7::^1Trigger: Activator not a client!\n");
+		return;
+	}
+
+	/* loop through all catalogued entries */
+	total = tokenizebyseparator(m_strBuffer, " ");
+
+	for (i = 0; i < total; i+=2) {
+		cname = argv(i);
+		count = stoi(argv(i+1));
+
+		for (x = 0; x < count; x++) {
+			if (isfunction(strcat("spawnfunc_", cname))) {
+				cname = strcat("spawnfunc_", cname);
+				game_player_equip::SpawnUnit(cname, act.origin);
+			} else if (isfunction(cname)) {
+				game_player_equip::SpawnUnit(cname, act.origin);
+			}
+		}
+	}
+}
+
+void
+game_player_equip::game_player_equip(void)
+{
+	/* like multi_manager, we save non-field infos in the spawndata */
+	for (int i = 1; i < (tokenize(__fullspawndata) - 1); i += 2) {
+		switch (argv(i)) {
+		case "{":
+		case "}":
+		case "classname":
+		case "origin":
+		case "targetname":
+		case "spawnflags":
+		case "angle":
+		case "angles":
+			continue;
+			break;
+		default:
+			m_strBuffer = sprintf("%s%s %s ", m_strBuffer, argv(i), argv(i+1));
+		}
+	}
+
+	CBaseTrigger::CBaseTrigger();
+}