From 81693dcd77725b79ee3cf6b76292c549686fc595 Mon Sep 17 00:00:00 2001
From: cypress <motolegacy@proton.me>
Date: Wed, 18 Oct 2023 10:00:25 -0400
Subject: [PATCH] SERVER: Require client to look at certain entities for
 triggering

---
 source/server/clientfuncs.qc          | 20 ++++++++++++++++++++
 source/server/entities/machines.qc    |  4 ++--
 source/server/entities/wall_weapon.qc | 24 +++++++++++++++++++-----
 3 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/source/server/clientfuncs.qc b/source/server/clientfuncs.qc
index 9fb85c3..1471227 100644
--- a/source/server/clientfuncs.qc
+++ b/source/server/clientfuncs.qc
@@ -624,4 +624,24 @@ void(entity person, float expamt, float doublepoint) addmoney =
 	person.points += expamt;
 
 	UpdatePlayerPoints(person.playernum, person.points, expamt, person.kills, person.netname, person);
+};
+
+float(entity them, entity me) PlayerIsLooking =
+{
+	float ret = false;
+	float old_solid = me.solid;
+	me.solid = SOLID_BBOX;
+	setorigin(me, me.origin);
+
+	vector source;
+	makevectors (them.v_angle);
+	source = them.origin + them.view_ofs;
+	traceline (source, source + v_forward*500, 0, them);
+
+	if (trace_ent == me)
+		ret = true;
+
+	me.solid = old_solid;
+	setorigin(me, me.origin);
+	return ret;
 };
\ No newline at end of file
diff --git a/source/server/entities/machines.qc b/source/server/entities/machines.qc
index f7ac19c..665e795 100644
--- a/source/server/entities/machines.qc
+++ b/source/server/entities/machines.qc
@@ -261,7 +261,7 @@ void() ReviveGoAway =
 //
 void() touch_perk =
 {  
-	if (other.classname != "player" || other.downed || other.isBuying == true)
+	if (other.classname != "player" || other.downed || other.isBuying == true || !PlayerIsLooking(other, self))
 		return;
 
 	// If we're proned and the map permits, collect some spare change
@@ -1206,7 +1206,7 @@ void PapUpgrade(entity pap, entity buyer) {
 
 void touch_pap() {
   
-	if (other.classname != "player" || other.downed) {
+	if (other.classname != "player" || other.downed || !PlayerIsLooking(other, self)) {
 		return;
 	}
 
diff --git a/source/server/entities/wall_weapon.qc b/source/server/entities/wall_weapon.qc
index cea9f04..f6e0427 100644
--- a/source/server/entities/wall_weapon.qc
+++ b/source/server/entities/wall_weapon.qc
@@ -92,7 +92,7 @@ void() weapon_wall =
 
 	// We are, indeed, Wall Chalk.
 	Precache_Set("models/misc/chalk.mdl");	
-	setsize (self, VEC_HULL2_MIN, VEC_HULL2_MAX);
+	setsize (self, '-12 -12 -12', '12 12 12');
 
 	// Set-Up Weapon Prop.
 	entity weapon_prop = spawn();
@@ -102,7 +102,7 @@ void() weapon_wall =
 	self.enemy.solid = SOLID_NOT;
 	self.enemy.owner = self;
 	self.enemy.classname = "weapon_wall_prop";
-	setsize(self.enemy, VEC_HULL2_MIN, VEC_HULL2_MAX);
+	setsize(self.enemy, '0 0 0', '0 0 0');
 
 	// We want the Prop to be slightly behind the Chalk.
 	makevectors(self.angles);
@@ -136,7 +136,7 @@ void () WallWeapon_TouchTrigger =
 
 	float wcost;
 
-	if (other.classname != "player" || other.downed || other.isBuying) {
+	if (other.classname != "player" || other.downed || other.isBuying || !PlayerIsLooking(other, self)) {
 		return;
 	}
 
@@ -333,6 +333,13 @@ void () WallWeapon_TouchTrigger =
 					W_HideCrosshair(other);
 					addmoney(other, -self.cost2, FALSE);
 					other.ach_tracker_coll++;
+					if (self.enemy)
+					{
+						oldent = self;
+						self = self.enemy;
+						self.use();
+						self = oldent;
+					}
 					entity tempz;
 					tempz = self;
 					self = other;
@@ -396,8 +403,15 @@ void() WallWeapon_LinkChalk =
 	
 	ent = find (world, targetname, self.target);
 	
-	if (ent.classname == "weapon_wall")
-	    self.enemy = ent;
+	if (ent.classname == "weapon_wall") {
+		self.enemy = ent;
+		self.mins = self.enemy.mins;
+		self.maxs = self.enemy.maxs;
+		self.origin = self.enemy.origin;
+		setsize(self, self.mins, self.maxs);
+		setorigin(self, self.origin);
+	}
+	    
 }
 
 //