env_hudhint: Initial basic implementation, plus a way for the game-logic to send hints.

src/client/entry.c

@@ -546,6 +546,12 @@ CSQC_Parse_Event(void)
 	case EV_SENTENCE:
 		CBaseEntity_ParseSentence();
 		break;
+	case EV_HUDHINT:
+		string hint;
+		hint = readstring();
+		/* TODO: Handle the event properly */
+		Chat_Parse(sprintf("Hint: %s", hint));
+		break;
 	case EV_FADE:
 		Fade_Parse();
 		break;

src/gs-entbase/server.src

@@ -22,6 +22,7 @@ server/cycler.cpp
 server/cycler_sprite.cpp
 server/env_beam.cpp
 server/env_fade.cpp
+server/env_hudhint.cpp
 server/env_sprite.cpp
 server/env_spark.cpp
 server/env_explosion.cpp

src/gs-entbase/server/env_hudhint.cpp

@@ -0,0 +1,82 @@
+/*
+ * 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 env_hudhint (0 0 0) (-8 -8 -8) (8 8 8) EVF_FADEDROM EVF_MODULATE EVF_ONLYUSER
+"targetname"    Name
+"target"        Target when triggered.
+"killtarget"    Target to kill when triggered.
+"rendercolor"   RGB8 Color of the fade effect.
+"renderamt"     A8 alpha value we'll hit at max.
+"duration"      Duration of the effect in seconds.
+"holdtime"      How long we'll hold on the max color/alpha.
+
+When triggered, creates a colored overlay that blinds all players, or just
+the one who triggered it if EVF_ONLYUSER is set.
+*/
+
+void env_hudhint_send(entity eActivator, string strMessage, int iFlags);
+
+enumflags
+{
+	EHH_ALLPLAYERS
+};
+
+class env_hudhint:CBaseTrigger
+{
+	string m_strMessage;
+
+	void(void) env_hudhint;
+	virtual void(entity, int) Trigger;
+	virtual void(string, string) SpawnKey;
+};
+
+void
+env_hudhint::Trigger(entity act, int state)
+{
+	env_hudhint_send(act, m_strMessage, spawnflags);
+}
+
+void
+env_hudhint::SpawnKey(string strKey, string strValue)
+{
+	switch (strKey) {
+	case "message":
+		m_strMessage = strValue;
+		break;
+	default:
+		CBaseTrigger::SpawnKey(strKey, strValue);
+	}
+}
+
+void
+env_hudhint::env_hudhint(void)
+{
+	CBaseTrigger::CBaseTrigger();
+}
+
+void
+env_hudhint_send(entity eActivator, string strMessage, int iFlags)
+{
+	WriteByte(MSG_MULTICAST, SVC_CGAMEPACKET);
+	WriteByte(MSG_MULTICAST, EV_HUDHINT);
+	WriteString(MSG_MULTICAST, strMessage);
+	msg_entity = eActivator;
+
+	if (iFlags & EHH_ALLPLAYERS)
+		multicast([0,0,0], MULTICAST_ALL);
+	else
+		multicast([0,0,0], MULTICAST_ONE_R);
+}

src/shared/events.h

@@ -32,6 +32,7 @@ enum
 	EV_EXPLOSION,
 	EV_SPARK,
 	EV_SHAKE,
+	EV_HUDHINT,
 	EV_FADE,
 	EV_TEXT,
 	EV_MESSAGE,