106 lines
3.9 KiB
C#
106 lines
3.9 KiB
C#
using System;
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using System.Collections.Generic;
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namespace Syntriax.Engine.Core.Abstract;
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/// <summary>
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/// Represents the transformation properties of an object such as position, scale, and rotation.
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/// </summary>
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public interface ITransform : IAssignableGameObject, IEnumerable<ITransform>
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{
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/// <summary>
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/// Event triggered when the <see cref="Position"/> of the <see cref="ITransform"/> changes.
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/// </summary>
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event OnPositionChangedEventHandler? OnPositionChanged;
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/// <summary>
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/// Event triggered when the <see cref="Scale"/> of the <see cref="ITransform"/> changes.
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/// </summary>
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event OnScaleChangedEventHandler? OnScaleChanged;
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/// <summary>
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/// Event triggered when the <see cref="Rotation"/> of the <see cref="ITransform"/> changes.
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/// </summary>
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event OnRotationChangedEventHandler? OnRotationChanged;
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/// <summary>
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/// Event triggered when the <see cref="Parent"/> of the <see cref="ITransform"/> changes. The second parameter is the old <see cref="ITransform"/>.
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/// </summary>
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event OnParentChangedEventHandler? OnParentChanged;
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/// <summary>
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/// Event triggered when a new <see cref="ITransform"/> is added to the <see cref="Children"/>.
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/// </summary>
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event OnChildrenAddedEventHandler? OnChildrenAdded;
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/// <summary>
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/// Event triggered when an <see cref="ITransform"/> is removed from the <see cref="Children"/>.
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/// </summary>
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event OnChildrenRemovedEventHandler? OnChildrenRemoved;
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/// <summary>
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/// The world position of the <see cref="ITransform"/> in 2D space.
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/// </summary>
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Vector2D Position { get; set; }
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/// <summary>
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/// The world scale of the <see cref="ITransform"/>.
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/// </summary>
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Vector2D Scale { get; set; }
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/// <summary>
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/// The world rotation of the <see cref="ITransform"/> in degrees.
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/// </summary>
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float Rotation { get; set; }
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/// <summary>
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/// The local position of the <see cref="ITransform"/> in 2D space.
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/// </summary>
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Vector2D LocalPosition { get; set; }
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/// <summary>
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/// The local scale of the <see cref="ITransform"/>.
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/// </summary>
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Vector2D LocalScale { get; set; }
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/// <summary>
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/// The local rotation of the <see cref="ITransform"/> in degrees.
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/// </summary>
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float LocalRotation { get; set; }
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/// <summary>
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/// The parent <see cref="ITransform"/> of the <see cref="ITransform"/>.
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/// </summary>
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ITransform? Parent { get; }
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/// <summary>
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/// The <see cref="ITransform"/>s that have this <see cref="ITransform"/> as their <see cref="Parent"/>.
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/// </summary>
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IReadOnlyList<ITransform> Children { get; }
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/// <summary>
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/// Sets the parent <see cref="ITransform"/> of this <see cref="ITransform"/>.
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/// </summary>
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/// <param name="transform">The parent <see cref="ITransform"/> to set.</param>
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void SetParent(ITransform? transform);
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/// <summary>
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/// Adds a child <see cref="ITransform"/> to this <see cref="ITransform"/>.
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/// </summary>
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/// <param name="transform">The child <see cref="ITransform"/> to add.</param>
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void AddChild(ITransform transform);
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/// <summary>
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/// Removes a child <see cref="ITransform"/> from this <see cref="ITransform"/>.
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/// </summary>
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/// <param name="transform">The child <see cref="ITransform"/> to remove.</param>
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void RemoveChild(ITransform transform);
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delegate void OnPositionChangedEventHandler(ITransform sender);
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delegate void OnScaleChangedEventHandler(ITransform sender);
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delegate void OnRotationChangedEventHandler(ITransform sender);
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delegate void OnParentChangedEventHandler(ITransform sender, ITransform? previousParent, ITransform? newParent);
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delegate void OnChildrenAddedEventHandler(ITransform sender, ITransform childrenAdded);
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delegate void OnChildrenRemovedEventHandler(ITransform sender, ITransform childrenRemoved);
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}
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