add flag (#6815)

Author: Kestrellius

code/ai/aiturret.cpp

@@ -1559,7 +1559,9 @@ void turret_set_next_fire_timestamp(int weapon_num, const weapon_info *wip, ship
 	float burst_shots_mult = wip->weapon_launch_curves.get_output(weapon_info::WeaponLaunchCurveOutputs::BURST_SHOTS_MULT, launch_curve_data);
 	int burst_shots = MAX(fl2i(i2fl(base_burst_shots) * burst_shots_mult) - 1, 0);
 
-	if (burst_shots > turret->weapons.burst_counter[weapon_num]) {
+	bool burst = burst_shots > turret->weapons.burst_counter[weapon_num];
+
+	if (burst) {
 		wait *= wip->burst_delay;
 		wait *= wip->weapon_launch_curves.get_output(weapon_info::WeaponLaunchCurveOutputs::BURST_DELAY_MULT, launch_curve_data);
 		turret->weapons.burst_counter[weapon_num]++;
@@ -1659,7 +1661,7 @@ void turret_set_next_fire_timestamp(int weapon_num, const weapon_info *wip, ship
 		wait *= frand_range(0.9f, 1.1f);
 	}
 
-	if(turret->rof_scaler != 1.0f)
+	if(turret->rof_scaler != 1.0f && !(burst && turret->system_info->flags[Model::Subsystem_Flags::Burst_ignores_RoF_Mult]))
 		wait /= get_adjusted_turret_rof(turret);
 
 	(*fs_dest) = timestamp((int)wait);

code/model/model_flags.h

@@ -72,6 +72,7 @@ namespace Model {
 		Hide_turret_from_loadout_stats, // Turret is not accounted for in auto-generated "Turrets" line in the ship loadout window --wookieejedi
 		Turret_distant_firepoint,	//Turret barrel is very long and should be taken into account when aiming -- Kiloku
 		Override_submodel_impact,	// if a weapon impacted a submodel, but this subsystem is within range, the subsystem takes priority -- Goober5000
+		Burst_ignores_RoF_Mult,		// The turret's fire rate multiplier won't affect burst delay.
 
         NUM_VALUES
 	};

code/ship/ship.cpp

@@ -357,6 +357,7 @@ flag_def_list_new<Model::Subsystem_Flags> Subsystem_flags[] = {
 	{ "hide turret from loadout stats", Model::Subsystem_Flags::Hide_turret_from_loadout_stats, true, false },
 	{ "turret has distant firepoint", Model::Subsystem_Flags::Turret_distant_firepoint,         true, false },
 	{ "override submodel impact",   Model::Subsystem_Flags::Override_submodel_impact,           true, false },
+	{ "burst ignores rof mult", 	Model::Subsystem_Flags::Burst_ignores_RoF_Mult,				true, false },
 };
 
 const size_t Num_subsystem_flags = sizeof(Subsystem_flags)/sizeof(flag_def_list_new<Model::Subsystem_Flags>);