How do i limit speed of my VehicleBody3D

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:bust_in_silhouette: Asked By Lebweuh

so been trying to limit my vehicle speed because it reaches speed of light and afraid if it can time travel so i came up with a solution like this

func _on_timer_timeout():
if spd >= max_speed:
	engine_force_value = -1000
	engine_force_value = 1000

it is partially works but not basically brakes if speed is over speed limit. what should i use to stop my car from speeding over the limit? is there a better way to do it? (there is but i have no clue what it is please help me)

This might depend on how you’re accelerating, assuming some Input value is applied to the engine_force.

The simplest is to check the body’s linear_velocity.length() > max_speed and ignore the Input value, e.g. in _physics_process:

engine_force = 0
if linear_velocity.length() < max_speed:
    engine_force = throttle * delta

Beyond that, take a look at _integrate_forces and alter the physics state there (which may be more complicated

spaceyjase | 2023-06-08 11:26