How to launch character at angle with BodyVelocity

[Aivy_Wavy (Aivyn)]

I am attempting to get an angle in which the character would be launched in the direction that the blue line is shown, while a projectile would be in the direction of the red line. I’m not the greatest with CFrame so I need a bit of help on how this would be done

[xDeltaXen]

The angle between the 2 vectors can be found from their dot product. The cross product of the 2 vectors will give you a unit vector pointing in the direction of their cross product. You can use the cross product of the 2 vectors to find the angle between them.
local a = CFrame.Angles(0, rad(45), 0)
local b = CFrame.Angles(0, rad(180), 0)
local c = a:Inverse() * b
local d = c.LookVector

local angle = 0
if d.Magnitude > 0 then
angle = rad(math.deg(math.atan2(d.x, d.z)))
end
print(angle)


[Chaos_Geo]

Tracking bullet position/orientation would be the best thing to do in your scenario.
When tracking bullet position, use CFrame.new(, ). This creates a CFrame facing the direction your character should be pushed. Use CFrame.LookVector as velocity, multiplied by the strength of the knockback.
If you want to use orientation tracking, directly use <bullet, as a part>.CFrame.LookVector * for knockback.
I’d also advise you to use LinearVelocity instead, BodyVelocity is deprecated. There are various tutorials you can find for LinearVelocity.