72 lines
2.5 KiB
C#
72 lines
2.5 KiB
C#
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using UnityEngine;
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using Invector;
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public class vUIIndicatorPosition : MonoBehaviour
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{
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public Transform referencePosition;
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public RectTransform container;
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public Canvas canvas;
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protected RectTransform rectTransform;
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protected Camera _camera;
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private void Start()
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{
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_camera = Camera.main;
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if (canvas == null) canvas = GetComponentInParent<Canvas>();
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if (container == null) container = GetComponentInParent<RectTransform>();
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rectTransform = GetComponent<RectTransform>();
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}
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public void Update()
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{
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if (canvas && referencePosition)
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{
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rectTransform.anchoredPosition = ClampToWindow();
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}
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}
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Vector2 ClampToWindow()
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{
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var dir = referencePosition.position - _camera.transform.position;
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var angle = _camera.transform.forward.AngleFormOtherDirection(dir.normalized);
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float evaluate = Mathf.Clamp(Mathf.Abs(angle.y) - 60, 0, 20) / 20;
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Vector3 position = referencePosition.position;
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Vector3 position2 = position + (Quaternion.AngleAxis(-angle.y, Vector3.up) * dir);
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Vector2 pos = canvas.WorldToCanvas(Vector3.Lerp(position, position2, evaluate), _camera);
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// var pos2 = pos.normalized* rectTransform.rect.height;
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Vector2 clamped = pos.ClampInsideRectagle(container, rectTransform.rect.size);
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return clamped;
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}
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}
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public static class CanvasExtensions
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{
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public static Vector2 WorldToCanvas(this Canvas canvas,
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Vector3 world_position,
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Camera camera = null)
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{
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if (camera == null)
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{
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camera = Camera.main;
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}
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var viewport_position = camera.WorldToViewportPoint(world_position);
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var canvas_rect = canvas.GetComponent<RectTransform>();
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return new Vector2((viewport_position.x * canvas_rect.sizeDelta.x) - (canvas_rect.sizeDelta.x * 0.5f),
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(viewport_position.y * canvas_rect.sizeDelta.y) - (canvas_rect.sizeDelta.y * 0.5f));
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}
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public static Vector2 ClampInsideRectagle(this Vector2 pos, RectTransform container, Vector2 margin)
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{
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Vector2 clamped = pos;
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clamped.x = Mathf.Clamp(clamped.x, (-container.rect.width / 2) + margin.x, (container.rect.width / 2) - margin.x);
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clamped.y = Mathf.Clamp(clamped.y, (-container.rect.height / 2) + margin.y, (container.rect.height / 2) - margin.y);
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return clamped;
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}
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}
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