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using UnityEngine;
public class Pendulum_Force : MonoBehaviour
{
public float TangentForce = 1.0f;
public Rigidbody2D PivotBody;
private Rigidbody2D BallBody;
void Start()
{
BallBody = GetComponent<Rigidbody2D>();
}
void Update()
{
var clockwise = Input.GetKeyDown(KeyCode.LeftArrow);
var anticlockwise = Input.GetKeyDown(KeyCode.RightArrow);
var constraint = (PivotBody.position - BallBody.position).normalized;
if (clockwise)
{
var force = new Vector2(-constraint.y, constraint.x) * TangentForce;
BallBody.AddForce(force, ForceMode2D.Impulse);
}
if (anticlockwise)
{
var force = new Vector2(constraint.y, -constraint.x) * TangentForce;
BallBody.AddForce(force, ForceMode2D.Impulse);
}
}
}
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