42 lines
1.7 KiB
C#
42 lines
1.7 KiB
C#
using UnityEngine;
|
|
|
|
namespace Saltosion.OneWeapon {
|
|
public class Util {
|
|
public static T GetClosestTo<T>(Transform Searcher, float radius, bool needsLineOfSight = false) where T : MonoBehaviour {
|
|
Collider2D[] NearbyColliders = Physics2D.OverlapCircleAll(Searcher.position, radius);
|
|
float LowestDistance = float.PositiveInfinity;
|
|
T FoundTarget = null;
|
|
foreach (Collider2D Collider in NearbyColliders) {
|
|
if (Collider.gameObject == Searcher.gameObject) {
|
|
continue;
|
|
}
|
|
|
|
Vector2 Delta = (Collider.transform.position - Searcher.position);
|
|
float Distance = Delta.magnitude;
|
|
T TargetComponent = Collider.GetComponent<T>();
|
|
RaycastHit2D[] Hits = Physics2D.RaycastAll(Searcher.position, Delta.normalized, Distance);
|
|
|
|
bool LineOfSightObstructed;
|
|
if (needsLineOfSight) {
|
|
LineOfSightObstructed = false;
|
|
foreach (RaycastHit2D Hit in Hits) {
|
|
if (Hit.collider != Collider && Hit.transform != Searcher) {
|
|
// Hit something between the target and the searcher
|
|
LineOfSightObstructed = true;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
LineOfSightObstructed = false;
|
|
}
|
|
|
|
if (TargetComponent != null && !LineOfSightObstructed && Distance < LowestDistance) {
|
|
LowestDistance = Distance;
|
|
FoundTarget = TargetComponent;
|
|
}
|
|
}
|
|
return FoundTarget;
|
|
}
|
|
}
|
|
}
|