267 lines
13 KiB
C#
267 lines
13 KiB
C#
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// Copyright (c) 2015 - 2023 Doozy Entertainment. All Rights Reserved.
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// This code can only be used under the standard Unity Asset Store End User License Agreement
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// A Copy of the EULA APPENDIX 1 is available at http://unity3d.com/company/legal/as_terms
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using System;
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using UnityEngine;
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using static UnityEngine.Mathf;
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// ReSharper disable UnusedMember.Global
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// ReSharper disable MemberCanBePrivate.Global
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namespace Doozy.Runtime.Reactor
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{
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public static class ReactorUtils
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{
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public static MoveDirection Reverse(this MoveDirection target)
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{
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switch (target)
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{
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case MoveDirection.Left: return MoveDirection.Right;
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case MoveDirection.Top: return MoveDirection.Bottom;
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case MoveDirection.Right: return MoveDirection.Left;
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case MoveDirection.Bottom: return MoveDirection.Top;
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case MoveDirection.TopLeft: return MoveDirection.BottomRight;
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case MoveDirection.TopCenter: return MoveDirection.BottomCenter;
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case MoveDirection.TopRight: return MoveDirection.BottomLeft;
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case MoveDirection.MiddleLeft: return MoveDirection.MiddleRight;
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case MoveDirection.MiddleCenter: return MoveDirection.MiddleCenter;
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case MoveDirection.MiddleRight: return MoveDirection.MiddleLeft;
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case MoveDirection.BottomLeft: return MoveDirection.TopRight;
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case MoveDirection.BottomCenter: return MoveDirection.TopCenter;
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case MoveDirection.BottomRight: return MoveDirection.TopLeft;
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case MoveDirection.CustomPosition: return MoveDirection.CustomPosition;
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default: throw new ArgumentOutOfRangeException(nameof(target), target, null);
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}
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}
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/// <summary> Get the 'to' (end) position por a move out (hide) animation </summary>
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/// <param name="target"> Target RectTransform </param>
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/// <param name="moveToDirection"> Direction to where the animation goes to </param>
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/// <param name="fromPosition"> From (start) position for the move out (hide) animation </param>
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public static Vector3 GetMoveOutPosition(RectTransform target, MoveDirection moveToDirection, Vector3 fromPosition) =>
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GetTargetPosition(target, moveToDirection, fromPosition, target.localScale, target.localEulerAngles);
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/// <summary> Get the 'to' (end) position por a move out (hide) animation </summary>
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/// <param name="target"> Target RectTransform </param>
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/// <param name="moveToDirection"> Direction to where the animation goes to </param>
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/// <param name="fromPosition"> From (start) position for the move out (hide) animation </param>
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/// <param name="toLocalScale"> If there is a to local scale (whe UIAnimation modifies the target's scale) the 'to' scale value needs to be passed </param>
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/// <param name="toLocalEulerAngles"> If there is a 'to' local rotation (when UIAnimation modifies the target's rotation) the 'to' rotation value needs to be passed </param>
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public static Vector3 GetMoveOutPosition(RectTransform target, MoveDirection moveToDirection, Vector3 fromPosition, Vector3 toLocalScale, Vector3 toLocalEulerAngles) =>
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GetTargetPosition(target, moveToDirection, fromPosition, toLocalScale, toLocalEulerAngles);
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/// <summary> Get the 'from' (start) position for a move in (show) animation </summary>
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/// <param name="target"> Target RectTransform </param>
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/// <param name="moveFromDirection"> Direction from where the animation comes from </param>
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/// <param name="toValue"> To (end) position for a move in (show) animation </param>
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public static Vector3 GetMoveInPosition(RectTransform target, MoveDirection moveFromDirection, Vector3 toValue) =>
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GetTargetPosition(target, moveFromDirection, toValue, target.localScale, target.localEulerAngles);
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/// <summary> Get the 'from' (start) position for a move in (show) animation </summary>
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/// <param name="target"> Target RectTransform </param>
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/// <param name="moveFromDirection"> Direction from where the animation comes from </param>
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/// <param name="toValue"> To (end) position for a move in (show) animation </param>
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/// <param name="fromLocalScale"> If there is a 'from' local scale (when UIAnimation modifies the target's scale) the 'from' scale value needs to be passed </param>
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/// <param name="fromLocalEulerAngles"> If there is a 'from' local rotation (when UIAnimation modifies the target's rotation) the 'from' rotation value needs to be passed </param>
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public static Vector3 GetMoveInPosition(RectTransform target, MoveDirection moveFromDirection, Vector3 toValue, Vector3 fromLocalScale, Vector3 fromLocalEulerAngles) =>
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GetTargetPosition(target, moveFromDirection, toValue, fromLocalScale, fromLocalEulerAngles);
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public static Vector3 GetTargetPosition(RectTransform target, MoveDirection moveDirection, Vector3 startPosition, Vector3 targetLocalScale, Vector3 targetLocalEulerAngles)
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{
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if (target == null) return Vector3.zero; //null target
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// Canvas canvas = target.GetComponent<Canvas>(); //get canvas
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// if (canvas != null && canvas == canvas.rootCanvas) return Vector3.zero; //found canvas, but it's root canvas (cannot calculate)
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RectTransform parent = target.parent.GetComponent<RectTransform>(); //get parent RectTransform
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parent.ForceUpdateRectTransforms();
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Rect parentRect = parent.rect;
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Rect targetRect = target.rect;
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Vector2 targetPivot = target.pivot;
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//calculate xOffset
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float xOffset = 0;
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switch (moveDirection)
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{
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case MoveDirection.Left:
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case MoveDirection.TopLeft:
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case MoveDirection.MiddleLeft:
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case MoveDirection.BottomLeft:
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xOffset =
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targetRect.width * targetLocalScale.x * (1f - targetPivot.x)
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+ parentRect.width * (1f - targetPivot.x) * target.anchorMin.x
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+ parentRect.width * targetPivot.x * target.anchorMax.x;
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break;
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case MoveDirection.Right:
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case MoveDirection.TopRight:
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case MoveDirection.MiddleRight:
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case MoveDirection.BottomRight:
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xOffset =
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parentRect.width
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+ targetRect.width * targetLocalScale.x * targetPivot.x
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- parentRect.width * (1f - targetPivot.x) * target.anchorMin.x
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- parentRect.width * targetPivot.x * target.anchorMax.x;
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break;
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}
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//calculate yOffset
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float yOffset = 0;
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switch (moveDirection)
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{
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case MoveDirection.Top:
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case MoveDirection.TopLeft:
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case MoveDirection.TopCenter:
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case MoveDirection.TopRight:
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yOffset =
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parentRect.height
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+ targetRect.height * targetLocalScale.y * targetPivot.y
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- parentRect.height * (1f - targetPivot.y) * target.anchorMin.y
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- parentRect.height * targetPivot.y * target.anchorMax.y;
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break;
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case MoveDirection.Bottom:
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case MoveDirection.BottomLeft:
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case MoveDirection.BottomCenter:
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case MoveDirection.BottomRight:
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yOffset =
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targetRect.height * targetLocalScale.y * (1f - targetPivot.y)
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+ parentRect.height * (1f - targetPivot.y) * target.anchorMin.y
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+ parentRect.height * targetPivot.y * target.anchorMax.y;
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break;
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}
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//return calculated position
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float x = startPosition.x;
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float y = startPosition.y;
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float z = startPosition.z;
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Vector3 position;
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float xDirection = 0;
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float yDirection = 0;
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switch (moveDirection)
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{
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case MoveDirection.Left:
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position = new Vector3(-xOffset, y, z);
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xDirection = -1;
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yDirection = 0;
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break;
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case MoveDirection.Right:
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position = new Vector3(xOffset, y, z);
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xDirection = 1;
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yDirection = 0;
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break;
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case MoveDirection.Top:
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position = new Vector3(x, yOffset, z);
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xDirection = 0;
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yDirection = 1;
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break;
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case MoveDirection.Bottom:
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position = new Vector3(x, -yOffset, z);
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xDirection = 0;
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yDirection = -1;
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break;
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case MoveDirection.TopLeft:
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position = new Vector3(-xOffset, yOffset, z);
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xDirection = -1;
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yDirection = 1;
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break;
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case MoveDirection.TopCenter:
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position = new Vector3(0, yOffset, z);
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xDirection = 0;
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yDirection = 1;
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break;
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case MoveDirection.TopRight:
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position = new Vector3(xOffset, yOffset, z);
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xDirection = 1;
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yDirection = 1;
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break;
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case MoveDirection.MiddleLeft:
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position = new Vector3(-xOffset, 0, z);
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xDirection = -1;
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yDirection = 0;
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break;
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case MoveDirection.MiddleCenter:
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position = new Vector3(0, 0, z);
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xDirection = 0;
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yDirection = 0;
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break;
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case MoveDirection.MiddleRight:
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position = new Vector3(xOffset, 0, z);
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xDirection = 1;
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yDirection = 0;
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break;
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case MoveDirection.BottomLeft:
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position = new Vector3(-xOffset, -yOffset, z);
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xDirection = -1;
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yDirection = -1;
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break;
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case MoveDirection.BottomCenter:
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position = new Vector3(0, -yOffset, z);
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xDirection = 0;
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yDirection = -1;
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break;
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case MoveDirection.BottomRight:
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position = new Vector3(xOffset, -yOffset, z);
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xDirection = 1;
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yDirection = -1;
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break;
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// ReSharper disable once RedundantCaseLabel
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case MoveDirection.CustomPosition:
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default:
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position = startPosition;
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break;
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}
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if (Approximately(0, targetLocalEulerAngles.z))
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return position;
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//Rotation offset calculation
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//https://en.wikipedia.org/wiki/Rotation_(mathematics)#Two_dimensions
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//https://iiif.io/api/annex/notes/rotation/
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float angle = Abs(targetLocalEulerAngles.z % 180);
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float theta = angle * Deg2Rad;
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float width = targetRect.width * targetLocalScale.x;
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float height = targetRect.height * targetLocalScale.y;
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float newWidth;
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float newHeight;
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if (Approximately(angle, 0) || Approximately(angle, 90))
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{
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newWidth = width;
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newHeight = height;
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}
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else if (angle < 90)
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{
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newWidth = width * Cos(theta) + height * Sin(theta);
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newHeight = width * Sin(theta) + height * Cos(theta);
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}
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else
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{
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angle -= 90;
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theta = angle * Deg2Rad;
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newWidth = height * Cos(theta) + width * Sin(theta);
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newHeight = height * Sin(theta) + width * Cos(theta);
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}
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float offsetX = (newWidth - width) / 2f;
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float offsetY = (newHeight - height) / 2f;
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position = new Vector3
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(
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position.x + offsetX * xDirection,
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position.y + offsetY * yDirection,
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position.z
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);
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return position;
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//ToDo: re-check pivot options for rotation - it only works in limited cases (pivot should be x: 0.5f y: 0.5f to work as expected)
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}
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}
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}
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