How do i detect when two parts are colliding?
I can't find any specific function, only i got is a complex algorithm which doesn't fit for me.
Thanks for read
Edit: So far i came up with this
wait(1)
local Oil = game.Workspace:FindFirstChild("OilBlock2"):clone()
local part = script.Parent
local base = part.Parent.Base
function onTouched(hit)
local check = hit:findFirstChild("Oilblock2")
if check ~= nil then
print("yes oil")
else print("not Oil")
end
end
part.Touched:connect(onTouched)
But either if its OilBlock2 or not, the output is always "not Oil".
0
2 answers
There are a couple different ways you could go about this, and it depends on your definition of a collision.
If a collision is when two parts are intersecting you could use the GetTouchingParts method to determine which parts intersect another. You could then search the table for to see if the desired part is intersecting. Note that this does not count objects that have their CanCollide property set to false.
local part
local otherPart
local colliding = false
local function checkCollision(part, otherPart)
for _, part in ipairs (part:GetTouchingParts()) do
if part == otherPart then
return true
end
end
return false
end
part.Changed:connect(function()
checkCollision(part, otherPart)
end)
otherPart.Changed:connect(function()
colliding = checkCollision(otherPart, part)
end)
If a collision includes when two parts are touching but not intersecting (no space between faces, but not intersecting), then we can use the Touched and TouchEnded events. Be wary though, as if two parts are already touching when the game starts, the Touched events will not fire.
local part -- A part to detect touch events on
local otherPart -- The part to check for collisions
local colliding = false
part.Touched:connect(function(hit)
if hit == otherPart then
colliding = true
end
end)
part.TouchEnded:connect(function(hit)
if hit == otherPart then
colliding = false
end
end)
Note that neither of these methods are overly efficient, and would not rely heavily on them. If you are simply checking for collision of these two parts, go ahead. But I would not suggest using this as a custom collision detection engine (nor would I suggest making such a thing in Roblox)
Just check if the classname of "hit" is a part.
script.Parent.Touched:connect(function(hit)
if hit.Parent.ClassName == "Part" then
print("another brick touched!")
end
end)