Create a function condition that require the player to be inside a zone

[DG_Mathieu]

[U][B]Hello facepunch:[/B][/U]

I need a little help on configuring the Bio-Hazard addon from the workshop.
Here' s the thing :

There' s an entity that spawns a toxic sphere that is suppose to infect you once you get in.
The thing is that there' s a condition missing, so you get infected where ever you are on the map.

here' s the code :

self.skybox = ents.Create("prop_dynamic")
self.skybox:SetModelScale( self.skybox:GetModelScale() * 10, 0 )  -- Used to define the sphere size
self.skybox:SetMaterial("models/debug/debugwhite")
--self.skybox:SetRenderMode(RENDERMODE_TRANSALPHA)
self.skybox:SetColor(Color(10,255,0,255))
self.skybox:SetPos(self:GetPos())
self.skybox:SetAngles(self:GetAngles())
self.skybox:Spawn()
self.skybox:SetSolid(SOLID_NONE)
self.skybox:SetParent(self)
end

function ENT:InfectionNormal(ent)
if (ent.weargasmask == true and ent.weargasmaskfilter == true) or ent.ZombieBA == true or ent.heroguy == true then return end -- Missing condition here
if (ent:GetClass()=="npc_metropolice" or ent:GetClass()=="npc_combine_s") and ent:Health() >= ent:GetMaxHealth() then return end
if ent:GetClass()=="npc_zombie" or ent:GetClass()=="npc_zombine" or ent:GetClass()=="npc_fastzombie" or ent:GetClass()=="npc_poisonzombie" or ent:GetClass()=="npc_zombie_torso" or ent:GetClass()=="npc_headcrab_black" or ent:GetClass()=="npc_headcrab" or ent:GetClass()=="npc_fastzombie_torso" or ent:GetClass()=="npc_headcrab_fast" or ent:GetClass()=="npc_headcrab_poison" then return end
ent.Infect = (ent.Infect +2*GetConVarNumber("ba_multiplier_inf")*self.SatusMulti)
local infectedvirus = DamageInfo()
infectedvirus:SetDamage(math.random(0,1)*self.SatusMulti)
infectedvirus:SetDamageType(DMG_ACID)
infectedvirus:SetAttacker(self)
infectedvirus:SetInflictor(self)
ent:TakeDamageInfo(infectedvirus)
end

So i pretty much need a condition to do :

if (ent.weargasmask == true and ent.weargasmaskfilter == true) or ent.ZombieBA == true or ent.heroguy == true or not ent."is-inside" self.skybox:GetModelScale() * 10, 0 then return end

So the player does not get infected if he isnt inside the zone drawed by the sphere.

I hope you understood what i meant to say, i can give more infos and ressources if needed.

Thanks :)

[c👌de_g🎷]

You can either check if the player is inside the list returned by [img]http://wiki.garrysmod.com/favicon.ico[/img] [url=http://wiki.garrysmod.com/page/ents/FindInSphere]ents.FindInSphere[/url], or more efficiently, check if the player's distance ([img]http://wiki.garrysmod.com/favicon.ico[/img] [url=http://wiki.garrysmod.com/page/Vector/DistToSqr]Vector:DistToSqr[/url]) from the centre of the sphere is less than the radius.

[James]

[QUOTE=DG_Mathieu;52273091][U][B]Hello facepunch:[/B][/U]

I need a little help on configuring the Bio-Hazard addon from the workshop.
Here' s the thing :

There' s an entity that spawns a toxic sphere that is suppose to infect you once you get in.
The thing is that there' s a condition missing, so you get infected where ever you are on the map.

here' s the code :

self.skybox = ents.Create("prop_dynamic")
self.skybox:SetModelScale( self.skybox:GetModelScale() * 10, 0 )  -- Used to define the sphere size
self.skybox:SetMaterial("models/debug/debugwhite")
--self.skybox:SetRenderMode(RENDERMODE_TRANSALPHA)
self.skybox:SetColor(Color(10,255,0,255))
self.skybox:SetPos(self:GetPos())
self.skybox:SetAngles(self:GetAngles())
self.skybox:Spawn()
self.skybox:SetSolid(SOLID_NONE)
self.skybox:SetParent(self)
end

function ENT:InfectionNormal(ent)
if (ent.weargasmask == true and ent.weargasmaskfilter == true) or ent.ZombieBA == true or ent.heroguy == true then return end -- Missing condition here
if (ent:GetClass()=="npc_metropolice" or ent:GetClass()=="npc_combine_s") and ent:Health() >= ent:GetMaxHealth() then return end
if ent:GetClass()=="npc_zombie" or ent:GetClass()=="npc_zombine" or ent:GetClass()=="npc_fastzombie" or ent:GetClass()=="npc_poisonzombie" or ent:GetClass()=="npc_zombie_torso" or ent:GetClass()=="npc_headcrab_black" or ent:GetClass()=="npc_headcrab" or ent:GetClass()=="npc_fastzombie_torso" or ent:GetClass()=="npc_headcrab_fast" or ent:GetClass()=="npc_headcrab_poison" then return end
ent.Infect = (ent.Infect +2*GetConVarNumber("ba_multiplier_inf")*self.SatusMulti)
local infectedvirus = DamageInfo()
infectedvirus:SetDamage(math.random(0,1)*self.SatusMulti)
infectedvirus:SetDamageType(DMG_ACID)
infectedvirus:SetAttacker(self)
infectedvirus:SetInflictor(self)
ent:TakeDamageInfo(infectedvirus)
end

So i pretty much need a condition to do :

if (ent.weargasmask == true and ent.weargasmaskfilter == true) or ent.ZombieBA == true or ent.heroguy == true or not ent."is-inside" self.skybox:GetModelScale() * 10, 0 then return end

So the player does not get infected if he isnt inside the zone drawed by the sphere.

I hope you understood what i meant to say, i can give more infos and ressources if needed.

Thanks :)[/QUOTE]

It would depend on the shape of the zone. If it were cuboid, you would check something like this:

[lua]
if ( min.x < position.x and position.x < max.x ) and ( min.y < position.y and position.y < max.y ) and ( min.z < position.z and position.z < max.z ) then ...
[/lua]

If the shape is a sphere, you would do something like this:

[lua]
if ( position.distance( sphereOrigin.position ) < radiusShere ) then
[/lua]

Please note that the above is pseudo code, the actual functions you would use are available on the wiki. This is only an example of the logic you would use.

[DG_Mathieu]

Vector:DistToSqr seems to be the best one to do, but im not sure how to "link" it with the sphere it self. Its pretty new to me :s

[editline]25th May 2017[/editline]

[QUOTE=James xX;52273107]
[lua]
if ( position.distance( sphereOrigin.position ) < radiusShere ) then
[/lua]

Please note that the above is pseudo code, the actual functions you would use are available on the wiki. This is only an example of the logic you would use.[/QUOTE]

Yea thats what i planned to do with Vector:DistToSqr and then just compare it to the radius, but i' ve never used it before its kinda new to me x)

[editline]25th May 2017[/editline]

Do you use it like :

if Vector:DistToSqr(skybox, ent) >= 3000 then return end

[c👌de_g🎷]

No, you run the function on a vector and put in another vector as the argument. So it would look like

if (SomeEntity:GetPos():DistToSqr (SpherePos) <= SphereRadius) then 

[DG_Mathieu]

[QUOTE=code_gs;52273178]

if (SomeEntity:GetPos():DistToSqr (SpherePos) <= SphereRadius) then 

[/QUOTE]

is "SpherePos" the location defined by :

self.skybox:SetPos(self:GetPos())

Cause the sphere im trying to compare it to is a prop_dynamic entity so im not sure to understand, or if its the right thing to do :s

I got something like that :

self.skybox = ents.Create("prop_dynamic")
self.skybox:SetModelScale( self.skybox:GetModelScale() * 10, 0 )
self.skybox:SetMaterial("models/debug/debugwhite")
--self.skybox:SetRenderMode(RENDERMODE_TRANSALPHA)
self.skybox:SetColor(Color(10,255,0,255))
self.skybox:SetPos(self:GetPos())
self.skybox:SetAngles(self:GetAngles())
self.skybox:Spawn()
self.skybox:SetSolid(SOLID_NONE)
self.skybox:SetParent(self)
end


function ENT:InfectionNormal(ent)
if (ent.weargasmask == true and ent.weargasmaskfilter == true) or ent.ZombieBA == true or ent.heroguy == true or (ent:GetPos():DistToSqr (skybox:GetPos()) <= 3000) then return end

but it gives me the error :
ERROR : attempt to index global 'skybox' (a nil value)

[James]

That's because you defined it as self.Skybox. just change "skybox" to "self.skybox" on that last line.

[DG_Mathieu]

(ent:GetPos():DistToSqr (self.skybox:GetPos()) >= 3000)

Changed it like that and printed me that : "Tried to use a NULL entity!"

Thing is that self.skybox is defined in an other function, so i dont think it will work in that new one.

[editline]25th May 2017[/editline]

I also tried :

function ENT:LoadEffects()
self.skybox = ents.Create("prop_dynamic")
self.skybox:SetModelScale( self.skybox:GetModelScale() * 10, 0 )
self.skybox:SetMaterial("models/debug/debugwhite")
--self.skybox:SetRenderMode(RENDERMODE_TRANSALPHA)
self.skybox:SetColor(Color(10,255,0,255))
self.skybox:SetPos(self:GetPos())
self.skybox:SetAngles(self:GetAngles())
self.skybox:Spawn()
self.skybox:SetSolid(SOLID_NONE)
self.skybox:SetParent(self)
end

function ENT:InfectionNormal(ent)
if (ent.weargasmask == true and ent.weargasmaskfilter == true) or ent.ZombieBA == true or ent.heroguy == true or (ent:GetPos():Distance( self.skybox:GetPos() ) >= 3000)  then return end

Still didnt work : attempt to index global a nil value

[c👌de_g🎷]

Check if self.skybox is valid before using it.