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321 lines
14 KiB
C#
321 lines
14 KiB
C#
1 month ago
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// Animancer // Copyright 2020 Kybernetik //
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using System;
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using System.Collections.Generic;
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using UnityEngine;
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namespace Animancer
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{
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/// <summary>
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/// A set of up/down/left/right animations with diagonals as well.
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/// </summary>
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[CreateAssetMenu(menuName = Strings.MenuPrefix + "Directional Animation Set/8 Directions", order = Strings.AssetMenuOrder + 11)]
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public class DirectionalAnimationSet8 : DirectionalAnimationSet
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{
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/************************************************************************************************************************/
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[SerializeField]
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private AnimationClip _UpRight;
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/// <summary>[<see cref="SerializeField"/>] The animation facing diagonally up-right.</summary>
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public AnimationClip UpRight { get { return _UpRight; } }
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/// <summary>Sets the <see cref="UpRight"/> animation.</summary>
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/// <remarks>This is not simply a property setter because the animations will usually not need to be changed by scripts.</remarks>
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public void SetUpRight(AnimationClip clip)
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{
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_UpRight = clip;
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AnimancerUtilities.SetDirty(this);
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}
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/************************************************************************************************************************/
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[SerializeField]
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private AnimationClip _DownRight;
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/// <summary>[<see cref="SerializeField"/>] The animation facing diagonally down-right.</summary>
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public AnimationClip DownRight { get { return _DownRight; } }
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/// <summary>Sets the <see cref="DownRight"/> animation.</summary>
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/// <remarks>This is not simply a property setter because the animations will usually not need to be changed by scripts.</remarks>
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public void SetDownRight(AnimationClip clip)
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{
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_DownRight = clip;
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AnimancerUtilities.SetDirty(this);
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}
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/************************************************************************************************************************/
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[SerializeField]
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private AnimationClip _DownLeft;
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/// <summary>[<see cref="SerializeField"/>] The animation facing diagonally down-left.</summary>
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public AnimationClip DownLeft { get { return _DownLeft; } }
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/// <summary>Sets the <see cref="DownLeft"/> animation.</summary>
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/// <remarks>This is not simply a property setter because the animations will usually not need to be changed by scripts.</remarks>
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public void SetDownLeft(AnimationClip clip)
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{
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_DownLeft = clip;
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AnimancerUtilities.SetDirty(this);
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}
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/************************************************************************************************************************/
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[SerializeField]
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private AnimationClip _UpLeft;
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/// <summary>[<see cref="SerializeField"/>] The animation facing diagonally up-left.</summary>
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public AnimationClip UpLeft { get { return _UpLeft; } }
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/// <summary>Sets the <see cref="UpLeft"/> animation.</summary>
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/// <remarks>This is not simply a property setter because the animations will usually not need to be changed by scripts.</remarks>
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public void SetUpLeft(AnimationClip clip)
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{
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_UpLeft = clip;
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AnimancerUtilities.SetDirty(this);
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}
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/************************************************************************************************************************/
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/// <summary>Returns the animation closest to the specified `direction`.</summary>
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public override AnimationClip GetClip(Vector2 direction)
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{
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var angle = Mathf.Atan2(direction.y, direction.x);
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var octant = Mathf.RoundToInt(8 * angle / (2 * Mathf.PI) + 8) % 8;
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switch (octant)
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{
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case 0: return Right;
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case 1: return _UpRight;
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case 2: return Up;
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case 3: return _UpLeft;
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case 4: return Left;
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case 5: return _DownLeft;
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case 6: return Down;
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case 7: return _DownRight;
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default: throw new ArgumentOutOfRangeException("Invalid octant");
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}
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}
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/************************************************************************************************************************/
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#region Directions
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/************************************************************************************************************************/
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/// <summary>Constants for each of the diagonal directions.</summary>
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public static class Diagonals
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{
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/************************************************************************************************************************/
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/// <summary>1 / (Square Root of 2).</summary>
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public const float OneOverSqrt2 = 0.70710678118f;
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/// <summary>
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/// A vector with a magnitude of 1 pointing up to the right.
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/// <para></para>
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/// The value is approximately (0.707, 0.707).
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/// </summary>
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public static Vector2 UpRight { get { return new Vector2(OneOverSqrt2, OneOverSqrt2); } }
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/// <summary>
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/// A vector with a magnitude of 1 pointing down to the right.
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/// <para></para>
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/// The value is approximately (0.707, -0.707).
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/// </summary>
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public static Vector2 DownRight { get { return new Vector2(OneOverSqrt2, -OneOverSqrt2); } }
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/// <summary>
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/// A vector with a magnitude of 1 pointing down to the left.
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/// <para></para>
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/// The value is approximately (-0.707, -0.707).
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/// </summary>
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public static Vector2 DownLeft { get { return new Vector2(-OneOverSqrt2, -OneOverSqrt2); } }
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/// <summary>
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/// A vector with a magnitude of 1 pointing up to the left.
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/// <para></para>
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/// The value is approximately (-0.707, 0.707).
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/// </summary>
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public static Vector2 UpLeft { get { return new Vector2(-OneOverSqrt2, OneOverSqrt2); } }
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/************************************************************************************************************************/
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}
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/************************************************************************************************************************/
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/// <summary>The number of animations in this set.</summary>
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public override int ClipCount { get { return 8; } }
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/************************************************************************************************************************/
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/// <summary>Up, Down, Left Right, or their diagonals.</summary>
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public new enum Direction
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{
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#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member.
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Up,
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Right,
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Down,
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Left,
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UpRight,
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DownRight,
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DownLeft,
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UpLeft,
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#pragma warning restore CS1591 // Missing XML comment for publicly visible type or member.
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}
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/************************************************************************************************************************/
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/// <summary>Returns the name of the specified `direction`.</summary>
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protected override string GetDirectionName(int direction) { return ((Direction)direction).ToString(); }
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/************************************************************************************************************************/
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/// <summary>Returns the animation associated with the specified `direction`.</summary>
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public AnimationClip GetClip(Direction direction)
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{
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switch (direction)
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{
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case Direction.Up: return Up;
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case Direction.Right: return Right;
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case Direction.Down: return Down;
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case Direction.Left: return Left;
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case Direction.UpRight: return _UpRight;
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case Direction.DownRight: return _DownRight;
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case Direction.DownLeft: return _DownLeft;
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case Direction.UpLeft: return _UpLeft;
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default: throw new ArgumentException("Unhandled direction: " + direction);
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}
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}
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/// <summary>Returns the animation associated with the specified `direction`.</summary>
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public override AnimationClip GetClip(int direction)
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{
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return GetClip((Direction)direction);
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}
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/************************************************************************************************************************/
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/// <summary>Sets the animation associated with the specified `direction`.</summary>
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public void SetClip(Direction direction, AnimationClip clip)
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{
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switch (direction)
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{
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case Direction.Up: SetUp(clip); break;
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case Direction.Right: SetRight(clip); break;
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case Direction.Down: SetDown(clip); break;
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case Direction.Left: SetLeft(clip); break;
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case Direction.UpRight: _UpRight = clip; break;
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case Direction.DownRight: _DownRight = clip; break;
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case Direction.DownLeft: _DownLeft = clip; break;
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case Direction.UpLeft: _UpLeft = clip; break;
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default: throw new ArgumentException("Unhandled direction: " + direction);
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}
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AnimancerUtilities.SetDirty(this);
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}
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/// <summary>Sets the animation associated with the specified `direction`.</summary>
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public override void SetClip(int direction, AnimationClip clip)
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{
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SetClip((Direction)direction, clip);
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}
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/************************************************************************************************************************/
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/// <summary>Returns a vector representing the specified `direction`.</summary>
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public static Vector2 DirectionToVector(Direction direction)
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{
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switch (direction)
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{
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case Direction.Up: return Vector2.up;
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case Direction.Right: return Vector2.right;
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case Direction.Down: return Vector2.down;
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case Direction.Left: return Vector2.left;
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case Direction.UpRight: return Diagonals.UpRight;
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case Direction.DownRight: return Diagonals.DownRight;
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case Direction.DownLeft: return Diagonals.DownLeft;
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case Direction.UpLeft: return Diagonals.UpLeft;
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default: throw new ArgumentException("Unhandled direction: " + direction);
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}
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}
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/// <summary>Returns a vector representing the specified `direction`.</summary>
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public override Vector2 GetDirection(int direction)
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{
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return DirectionToVector((Direction)direction);
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}
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/************************************************************************************************************************/
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/// <summary>Returns the direction closest to the specified `vector`.</summary>
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public new static Direction VectorToDirection(Vector2 vector)
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{
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var angle = Mathf.Atan2(vector.y, vector.x);
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var octant = Mathf.RoundToInt(8 * angle / (2 * Mathf.PI) + 8) % 8;
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switch (octant)
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{
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case 0: return Direction.Right;
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case 1: return Direction.UpRight;
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case 2: return Direction.Up;
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case 3: return Direction.UpLeft;
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case 4: return Direction.Left;
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case 5: return Direction.DownLeft;
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case 6: return Direction.Down;
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case 7: return Direction.DownRight;
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default: throw new ArgumentOutOfRangeException("Invalid octant");
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}
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}
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/************************************************************************************************************************/
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/// <summary>Returns a copy of the `vector` pointing in the closest direction this set type has an animation for.</summary>
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public new static Vector2 SnapVectorToDirection(Vector2 vector)
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{
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var magnitude = vector.magnitude;
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var direction = VectorToDirection(vector);
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vector = DirectionToVector(direction) * magnitude;
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return vector;
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}
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/// <summary>Returns a copy of the `vector` pointing in the closest direction this set has an animation for.</summary>
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public override Vector2 Snap(Vector2 vector)
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{
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return SnapVectorToDirection(vector);
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}
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/************************************************************************************************************************/
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#endregion
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/************************************************************************************************************************/
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#region Name Based Operations
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/************************************************************************************************************************/
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#if UNITY_EDITOR
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/************************************************************************************************************************/
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/// <summary>
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/// Attempts to assign the `clip` to one of this set's fields based on its name and returns the direction index
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/// of that field (or -1 if it was unable to determine the direction).
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/// </summary>
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public override int SetClipByName(AnimationClip clip)
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{
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var name = clip.name;
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var directionCount = ClipCount;
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for (int i = directionCount - 1; i >= 0; i--)
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{
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if (name.Contains(GetDirectionName(i)))
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{
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SetClip(i, clip);
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return i;
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}
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}
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return -1;
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}
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/************************************************************************************************************************/
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#endif
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/************************************************************************************************************************/
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#endregion
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/************************************************************************************************************************/
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}
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}
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