From d5f679be6d065b128ad84fbd44fc30493dea0203 Mon Sep 17 00:00:00 2001
From: Roman Chistokhodov <freeslave93@gmail.com>
Date: Sat, 21 Sep 2024 13:00:07 +0300
Subject: [PATCH] Add "Don't delay first fire" spawnflag for env_blowercannon

---
 dlls/effects.cpp | 5 ++++-
 fgd/halflife.fgd | 4 ++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/dlls/effects.cpp b/dlls/effects.cpp
index fc57c92b6..e50fee5c5 100644
--- a/dlls/effects.cpp
+++ b/dlls/effects.cpp
@@ -3657,6 +3657,8 @@ enum
 	BLOWERCANNON_FIRE,
 };
 
+#define SF_BLOWERCANNON_NO_FIRST_DELAY 32
+
 class CBlowerCannon : public CBaseDelay
 {
 public:
@@ -3769,7 +3771,8 @@ void CBlowerCannon::BlowerCannonStart( CBaseEntity *pActivator, CBaseEntity *pCa
 	m_hActivator = pActivator;
 	SetUse( &CBlowerCannon::BlowerCannonStop );
 	SetThink( &CBlowerCannon::BlowerCannonThink );
-	pev->nextthink = gpGlobals->time + m_flDelay;
+	const float delay = FBitSet(pev->spawnflags, SF_BLOWERCANNON_NO_FIRST_DELAY) ? 0.0f : m_flDelay;
+	pev->nextthink = gpGlobals->time + delay;
 }
 
 void CBlowerCannon::BlowerCannonStop( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
diff --git a/fgd/halflife.fgd b/fgd/halflife.fgd
index 8312d54a3..066c64db0 100644
--- a/fgd/halflife.fgd
+++ b/fgd/halflife.fgd
@@ -1686,6 +1686,10 @@
 		1: "Toggle On/Off"
 		2: "Fire When Triggered"
 	]
+	spawnflags(flags) =
+	[
+		32: "Don't delay first fire" : 0
+	]
 ]
 
 @SolidClass base(Targetname) = env_bubbles : "Bubble Volume"