using UnityEngine;
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using System.Collections;
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using UnityEngine.UI;
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using UnityEngine.EventSystems;
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using System;
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public class PressTip : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
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{
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[SerializeField] GameObject m_Container;
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[SerializeField] float m_Delay = 0f;
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float timer = 0f;
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PointerState pointerState = PointerState.Up;
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bool triggered = false;
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private void OnEnable()
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{
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this.pointerState = PointerState.Up;
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this.m_Container.SetActive(false);
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}
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private void OnDisable()
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{
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this.pointerState = PointerState.Up;
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this.m_Container.SetActive(false);
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}
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public virtual void OnPointerDown(PointerEventData eventData)
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{
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this.pointerState = PointerState.Down;
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this.timer = 0f;
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triggered = false;
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}
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public virtual void OnPointerUp(PointerEventData eventData)
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{
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this.pointerState = PointerState.Up;
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this.m_Container.SetActive(false);
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}
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private void LateUpdate()
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{
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if (this.pointerState != PointerState.Down)
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{
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return;
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}
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this.timer += Time.deltaTime;
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if (this.timer > this.m_Delay && !triggered)
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{
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triggered = true;
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if (this.m_Container != null)
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{
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this.m_Container.SetActive(true);
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AdjustmentContainerPosition(this.m_Container.transform as RectTransform);
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}
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}
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}
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void AdjustmentContainerPosition(RectTransform _container)
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{
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if (_container == null)
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{
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return;
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}
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var viewPortPoint = CameraManager.uiCamera.ScreenToViewportPoint(Input.mousePosition);
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var normalizedOffset = CalculateNormalizedOffset(_container);
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var containerSize = new Vector2(_container.rect.width, _container.rect.height);
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var xOffset = viewPortPoint.x < normalizedOffset.x ? 1 : viewPortPoint.x > (1 - normalizedOffset.x) ? -1 : 0;
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var yOffset = viewPortPoint.y > (1 - normalizedOffset.y * 2) ? -1 : xOffset != 0 ? 0 : 1;
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var uiposition = CameraManager.uiCamera.ViewportToWorldPoint(viewPortPoint);
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_container.position = uiposition.SetZ(0);
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_container.localPosition += new Vector3(xOffset * containerSize.x * 0.5f, yOffset * containerSize.y * 0.5f, -_container.localPosition.z);
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}
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Vector2 CalculateNormalizedOffset(RectTransform _rectTransform)
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{
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var offsetX = _rectTransform.rect.width / Constants.DESIGN_RESOLUTION.x * 0.5f;
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var offsetY = _rectTransform.rect.height / Constants.DESIGN_RESOLUTION.y * 0.5f;
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return new Vector2(offsetX, offsetY);
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}
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enum PointerState
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{
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Down,
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Up
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}
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}
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