Le Duc Anh
66 lines
2.7 KiB
C#
66 lines
2.7 KiB
C#
using UnityEngine;
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using UnityEngine.EventSystems;
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namespace BrewMonster.UI
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{
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public class WorldMapClickHandler : MonoBehaviour, IPointerClickHandler
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{
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[Tooltip("The RectTransform of the Map Image (Usually this GameObject)")]
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private RectTransform mapRectTransform;
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[SerializeField] private RectTransform _hostPlayerPositionImage;
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public DlgWorldMap dlgWorldMap;
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// if true, user can click on the map to move the host player to the clicked position.
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// ideally we only enble this for testing/development.
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[SerializeField] private bool _enableClickToMove = true;
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// The host player player (0,0,0) is not at the center of the map. It usually has an offset that we have to calculate at Awake
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private Vector2 _hostPlayerOffsetPosition;
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private void Awake()
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{
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// Get the RectTransform of the map
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mapRectTransform = GetComponent<RectTransform>();
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CalculateHostPlayerOffsetPosition();
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}
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private void CalculateHostPlayerOffsetPosition()
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{
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_hostPlayerOffsetPosition = _hostPlayerPositionImage.anchoredPosition;
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// if the max/min of the anchor is 0.5 0.5, then the host player is at the center of the map
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// however we have to calculate the offset of the player because it is not at the center of the map
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// we can calculate the offset by the max/min of the anchor
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var maxAnchor = _hostPlayerPositionImage.anchorMax;
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var minAnchor = _hostPlayerPositionImage.anchorMin;
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_hostPlayerOffsetPosition = new Vector2((maxAnchor.x - 0.5f) * mapRectTransform.rect.width, (maxAnchor.y - 0.5f) * mapRectTransform.rect.height);
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}
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// This triggers automatically when the user clicks/taps on this Image
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public void OnPointerClick(PointerEventData eventData)
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{
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if(!_enableClickToMove) return;
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Vector2 localCursorPosition;
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// Convert the screen click position to local anchored position inside the Map
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bool isConverted = RectTransformUtility.ScreenPointToLocalPointInRectangle(
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mapRectTransform,
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eventData.position,
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eventData.pressEventCamera,
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out localCursorPosition
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);
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if (isConverted)
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{
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// convert the localCursorPosition to the local position of the host player position image
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localCursorPosition -= _hostPlayerOffsetPosition;
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dlgWorldMap.OnMapClicked(localCursorPosition);
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}
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}
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}
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}
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