You can now add a twirly effect to the SmokeTrail script

Author: fourZK

Base.rte/Scripts/Shared/SmokeTrail.lua

@@ -1,18 +1,30 @@
 function Create(self)
 	self.smokeTrailLifeTime = self:NumberValueExists("SmokeTrailLifeTime") and self:GetNumberValue("SmokeTrailLifeTime") or 150;
 	self.smokeTrailRadius = self:NumberValueExists("SmokeTrailRadius") and self:GetNumberValue("SmokeTrailRadius") or ToMOSprite(self):GetSpriteHeight() * 0.5;
+	self.smokeTrailTwirl = self:NumberValueExists("SmokeTrailTwirl") and self:GetNumberValue("SmokeTrailTwirl") or 0;
+	self.smokeTwirlCounter = math.random() < 0.5 and math.pi or 0;
 end
 function Update(self)
 	local effect;
 	local offset = self.Vel * rte.PxTravelledPerFrame;	--The effect will be created the next frame so move it one frame backwards towards the barrel
 
-	local trailLength = math.floor(offset.Magnitude + 0.5);
-	for i = 1, trailLength, 6 do
-		effect = CreateMOSParticle("Tiny Smoke Trail 1", "Base.rte");
+	local trailLength = math.floor(offset.Magnitude * 0.5 - 1);
+	for i = 1, trailLength do
+		local effect = CreateMOSParticle("Tiny Smoke Trail 1", "Base.rte");
 		if effect then
 			effect.Pos = self.Pos - offset * (i/trailLength) + Vector(RangeRand(-1, 1), RangeRand(-1, 1)) * self.smokeTrailRadius;
-			effect.Vel = self.Vel * RangeRand(0.75, 1.0);
-			effect.Lifetime = self.smokeTrailLifeTime * RangeRand(1.0, 1.5);
+			effect.Vel = self.Vel * RangeRand(0.75, 1);
+			effect.Lifetime = self.smokeTrailLifeTime * RangeRand(0.5, 1);
+		
+			if self.smokeTrailTwirl > 0 then
+				effect.AirResistance = effect.AirResistance * RangeRand(0.9, 1);
+				effect.GlobalAccScalar = effect.GlobalAccScalar * math.random();
+
+				effect.Pos = self.Pos - offset + offset * i/trailLength;
+				effect.Vel = self.Vel + Vector(0, math.sin(self.smokeTwirlCounter) * self.smokeTrailTwirl + RangeRand(-0.1, 0.1)):RadRotate(self.Vel.AbsRadAngle);
+				
+				self.smokeTwirlCounter = self.smokeTwirlCounter + RangeRand(-0.2, 0.4);
+			end
 			MovableMan:AddParticle(effect);
 		end
 	end

Ronin.rte/Devices/Weapons/RPG7/RPG7.ini

@@ -51,6 +51,8 @@ AddAmmo = AEmitter
 		SmokeTrailLifeTime = 500
 	AddCustomValue = NumberValue
 		SmokeTrailRadius = 1
+	AddCustomValue = NumberValue
+		SmokeTrailTwirl = 4
 	SpriteFile = ContentFile
 		FilePath = Ronin.rte/Devices/Weapons/RPG7/RPG.png
 	FrameCount = 1