Basic Trajectory Prediction Script

[iicloudsforeveriii (J10C)]

Overview

Trajectory Prediction is an important concept in the world of game design. That’s why I’ve come up with a basic script for precise trajectory prediction.

Code

local function PredictProjectile(Position:Vector3,Velocity:Vector3,Height:number?)
	local Gravity = 196.2
	local Velocity_Y = Velocity.Y
	local Velocity_X = Velocity*Vector3.new(1,0,1)

	local Time,Range
	local index = 0
	
	if not Height then Height = 0 end

	while index < 20 do
		Time = (Velocity_Y + math.sqrt(Velocity_Y^2 + 2*Gravity*Height))/Gravity
		Range = Velocity_X*Time
		local HeightRay = workspace:Raycast(Position + Range - Vector3.yAxis*Height,-Vector3.yAxis*1024)
		if HeightRay and HeightRay.Distance > 1 then
			Height += HeightRay.Distance-0.1
			index += 1
		else
			break
		end
	end
	return Range-Vector3.yAxis*Height,Time
end

How to Use?

To use this script, simply provide a Position and Velocity arguments to the function, and it will return a Range (Not to be confused with the position) and Time (Time of flight).

You can approximate the position by adding Range to Position. That is;

local Range = PredictProjectile(Position,Velocity)
local Approximated_Position = Position + Range

Poll

• Great Script.
• Not good.