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lua/entities/mg_bullet/cl_init.lua

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+include("shared.lua")
+
+ENT.RenderGroup = RENDERGROUP_TRANSLUCENT
+ENT.bWhizz = false
+
+local flareMaterial = Material("sprites/orangecore1_gmod")
+
+function ENT:DrawTranslucent(flags)
+	self:DestroyShadow()
+
+	if (self:GetVelocity():Length() <= 1) then
+		return
+	end
+	
+	self:DrawLight()
+	self:DrawTracer()
+	self:DrawBullet()
+end
+
+function ENT:DrawLight()
+	local dlight = DynamicLight(self:EntIndex())
+	if (dlight) then
+		dlight.pos = self:GetPos()
+		dlight.r = 255
+		dlight.g = 155
+		dlight.b = 0
+		dlight.brightness = 2
+		dlight.Decay = 500
+		dlight.Size = 128
+		dlight.DieTime = CurTime() + 0.1
+	end
+end
+
+function ENT:DrawBullet()
+	local angle = (self:GetPos() - EyePos()):Angle()
+	angle:RotateAroundAxis(EyeAngles():Right(), 90)
+	
+	local dist = math.min(self:GetPos():Distance(EyePos()), 300)
+
+	cam.Start3D2D(self:GetPos(), angle, dist * 0.0004)
+		surface.SetDrawColor(255, 255, 255, 255)
+		surface.SetMaterial(flareMaterial)
+		surface.DrawTexturedRectRotated(0, 0, 32, 32, 0)
+	cam.End3D2D()
+end
+
+function ENT:DrawTracer()
+	local angle = self:GetAngles()
+	angle:RotateAroundAxis(self:GetAngles():Forward(), 90)
+
+	cam.Start3D2D(self:GetPos(), angle, 0.15)
+		surface.SetDrawColor(255, 255, 255, 255)
+		surface.SetMaterial(flareMaterial)
+		surface.DrawTexturedRectUV(-512, -3, 512, 6, 0, 0, 0.5, 1)
+	cam.End3D2D()
+end
+
+function ENT:Think()
+	if (!IsValid(GetViewEntity())) then
+		return
+	end
+
+	local bInRadius = EyePos():DistToSqr(self:GetPos()) < 128 * 128
+
+	if (bInRadius && !self.bWhizz && self:GetOwner() != GetViewEntity()) then
+		GetViewEntity():EmitSound("Bullets.DefaultNearmiss")
+		self.bWhizz = true
+	end
+end

lua/entities/mg_bullet/init.lua

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+AddCSLuaFile("cl_init.lua")
+AddCSLuaFile("shared.lua")
+
+include("shared.lua")
+
+ENT.bCollided = false
+ENT.Projectile = {
+	Class = "mg_bullet",
+	Speed = 4000,
+	Gravity = 1
+}
+ENT.Maxs = Vector(6, 6, 6)
+
+function ENT:Initialize()
+	self:SetModel("models/weapons/ar2_grenade.mdl")
+	self:PhysicsInitBox(Vector(-1, -1, -1), Vector(1, 1, 1))
+	self:GetPhysicsObject():Wake()
+	self:GetPhysicsObject():SetMaterial("default_silent")
+	self:GetPhysicsObject():AddGameFlag(FVPHYSICS_NO_PLAYER_PICKUP)
+	self:GetPhysicsObject():AddGameFlag(FVPHYSICS_NO_IMPACT_DMG)
+	self:GetPhysicsObject():AddGameFlag(FVPHYSICS_HEAVY_OBJECT)
+	self:GetPhysicsObject():EnableMotion(true)
+	self:GetPhysicsObject():EnableDrag(false)
+	self:GetPhysicsObject():SetMass(1000)
+	self:SetSolid(SOLID_VPHYSICS)
+	self:SetCollisionGroup(COLLISION_GROUP_IN_VEHICLE) --doesn't collide with anything, no traces
+	self:AddEFlags(EFL_NO_DAMAGE_FORCES)
+	self:AddEFlags(EFL_DONTWALKON)
+	self:AddEFlags(EFL_DONTBLOCKLOS)
+	self:AddEFlags(EFL_NO_PHYSCANNON_INTERACTION)
+
+	self.Projectile = table.Copy(self.Weapon.Projectile)
+	self:GetPhysicsObject():SetVelocityInstantaneous(self:GetAngles():Forward() * self.Projectile.Speed)
+	self.LastPos = self:GetOwner():EyePos()
+end
+
+function ENT:Think()
+	if (self.bCollided && IsValid(self)) then
+		self:Remove()
+	end
+end
+
+function ENT:PhysicsUpdate(phys)
+	phys:AddVelocity(Vector(0, 0, self.Projectile.Gravity))
+	
+	if (!self.bCollided) then
+		--Aim assist
+		if (GetConVar("mgbase_debug_projectiles"):GetInt() > 0) then
+			debugoverlay.Box(phys:GetPos(), -self.Maxs, self.Maxs, 0, Color(0, 200, 50, 10))
+		end
+
+		local trData = {
+			start = self.LastPos,
+			endpos = phys:GetPos(),
+			filter = {self:GetOwner(), self},
+			mask = MASK_SHOT_PORTAL,
+			collisiongroup = COLLISION_GROUP_PROJECTILE,
+			mins = -self.Maxs,
+			maxs = self.Maxs
+		}
+
+		local tr = util.TraceHull(trData)
+		if (tr.Hit && (tr.Entity:IsPlayer() || tr.Entity:IsNPC())) then
+			self:Impact(tr, phys, true)
+			return
+		end
+
+		--Normal hitscan
+		if (GetConVar("mgbase_debug_projectiles"):GetInt() > 0) then
+			debugoverlay.Line(self.LastPos, phys:GetPos(), 1, Color(255, 0, 0, 1))
+		end
+
+		tr = util.TraceLine(trData)
+		if (tr.Hit) then
+			self:Impact(tr, phys, false)
+			return
+		end
+	end
+
+	self.LastPos = phys:GetPos()
+end
+
+function ENT:Impact(tr, phys, bHull) 
+	if (IsValid(self.Weapon)) then
+		self:FireBullets({
+			Attacker = self:GetOwner(),
+			Num = 1,
+			Tracer = 0,
+			Src = self.LastPos,
+			Dir = (phys:GetPos() - self.LastPos):GetNormalized(),
+			HullSize = bHull && self.Maxs:Length() * 2 || 1,
+			IgnoreEntity = self,
+			Callback = function(attacker, tr, dmgInfo)
+				dmgInfo:SetInflictor(self.Weapon)
+				dmgInfo:SetDamageType(DMG_DIRECT + self:GetDamageType())
+				self.Weapon:BulletCallback(attacker, tr, dmgInfo)
+			end
+		})
+	end
+	
+	self:Kill()
+end
+
+function ENT:Kill()
+	self.bCollided = true
+	self:SetNoDraw(true)
+	self:GetPhysicsObject():EnableMotion(false)
+end
+
+function ENT:GetDamageType()
+	return DMG_BULLET
+end

lua/entities/mg_bullet/shared.lua

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+ENT.Base = "base_entity"
+ENT.Type = "anim"
+
+ENT.Spawnable = false
+ENT.AdminOnly = false