Custom projectile, collision using a tracer issue.

[flyguy88]

I've been trying to make a custom projectile and i've come across a issue.

Basically it works by checking forward of itself a certain amount of units for entities or the world, then after nothing is in its trace it'll move forward(setpos) to the end of that trace and repeat the process.

function ENT:Calculate(speed, damage, DEBUG)
        local pos = self:GetPos()
        local forward = self:GetForward()
        local tracedata = {}
    tracedata.startpos = self:GetPos()
    tracedata.endpos = self:GetPos() + forward * speed
    tracedata.filter = self
    local trace = util.TraceLine(tracedata)
    if trace.Entity:IsPlayer() then
        if DEBUG then
            print("HITPLAYER")
        end
        trace.Entity:TakeDamage(damage, self:GetOwner())
        self:Remove()
    elseif trace.HitWorld then
        if DEBUG then
            print("HitWorld")
        end
        self:Remove()
    end
    //self:SetPos(tracedata.endpos)
    self:SetPos(self:GetPos() + self:GetForward() * speed)
end

local delay = 0.2
local consistant = CurTime()
function ENT:Think()
    if CurTime() > consistant then
        self:Calculate(self.Speed, self.DirectHitDamage, true)
        consistant = CurTime() + delay
    end
    
    --self:NextThink(CurTime() + 1)
end

Below is where the entity is created.

    if (self.spawn == true) then
        local disk = ents.Create(self.PROJTYPE)
        disk:SetPos(eyepos + fwd * distancefromface)
        disk:SetOwner(self.Weapon:GetOwner())
        disk:Spawn()
        disk:SetAngles(self:GetAngles() + VectorRand() * self.Recoil)
    end

I've had it kill me a few times from certain angles, but if we stand still and just shoot each other, nothing will happen, it seems to hitworld everytime though, so i suspect that the trace isn't forward?

[skullorz]

Why not use ENT:Touch or ENT:StartTouch instead?

[Insomnia Array]

I'm not completely sure, but

[lua]
if (self.spawn == true) then
local disk = ents.Create(self.PROJTYPE)
disk:SetPos(eyepos + fwd * distancefromface)
disk:SetOwner(self.Weapon:GetOwner())
disk:Spawn()
disk:SetAngles(self:GetAngles() + VectorRand() * self.Recoil)
end
[/lua]

You see, you create your entity, set it's position and owner, then you spawn it.
Then you set it's angles to (self:GetAngles() + VectorRand() * self.Recoil)

First issue I see here is that you don't set the entity's angles before, so it is Angle(0,0,0), and self:GetAngles() returns Angle(0,0,0). Second issue is that you are adding an Angle to a Normalized Vector.

My speculations are that this
[lua]
disk:SetAngles((fwd + VectorRand() * self.Recoil):Angle())[/lua]

should work. I dunno though.