63 lines
1.4 KiB
C#
63 lines
1.4 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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/// <summary>
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/// Keeps a GameObject on screen.
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/// Note that this ONLY works for an orthographic Main Camera at [ 0, 0, 0 ].
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/// </summary>
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public class BoundsCheck : MonoBehaviour
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{
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[Header("Set in Inspector")]
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public float radius = 1f;
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[Header("Set Dynamically")]
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public float camWidth;
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public float camHeight;
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void Awake() {
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camHeight = Camera.main.orthographicSize;
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camWidth = camHeight * Camera.main.aspect;
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}
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void LateUpdate () {
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Vector3 pos = transform.position;
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if (pos.x > camWidth - radius) {
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pos.x = camWidth - radius;
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}
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if (pos.x < -camWidth + radius) {
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pos.x = -camWidth + radius;
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}
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if (pos.y > camHeight - radius) {
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pos.y = camHeight - radius;
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}
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if (pos.y < -camHeight + radius) {
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pos.y = -camHeight + radius;
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}
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transform.position = pos;
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}
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// Draw the bounds in the Scene pane using OnDrawGizmos()
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void OnDrawGizmos () {
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if (!Application.isPlaying) return;
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Vector3 boundSize = new Vector3(camWidth* 2, camHeight* 2, 0.1f);
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Gizmos.DrawWireCube(Vector3.zero, boundSize);
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}
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// Start is called before the first frame update
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void Start()
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{
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}
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// Update is called once per frame
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void Update()
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{
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}
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}
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