PCK-Studio/PckStudio.Core/AtlasGroup.cs

/* Copyright (c) 2025-present miku-666
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * 
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 
 * 1.The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
**/
using System;
using System.Data.SqlTypes;
using System.Drawing;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace PckStudio.Core
{
    public class AtlasGroupJsonConverter : JsonConverter<AtlasGroup>
    {
        public override AtlasGroup ReadJson(JsonReader reader, Type objectType, AtlasGroup existingValue, bool hasExistingValue, JsonSerializer serializer)
        {
            JObject jObject = JObject.Load(reader);

            if (!TryGetValue(jObject, "name", out string name) || !TryGetValue(jObject, "row", out int row) || !TryGetValue(jObject, "column", out int column))
                return default;

            int frameTime = 1;
            int frameCount = 0;
            int rowSpan = 0;
            int columnSpan = 0;
            ImageLayoutDirection direction = default;
            bool isAnimation = TryGetValue(jObject, "frameTime", out frameTime) &&
                TryGetValue(jObject, "frameCount", out frameCount) &&
                TryGetValue(jObject, "direction", out direction);
            bool isLargeTile = TryGetValue(jObject, "rowSpan", out rowSpan) && TryGetValue(jObject, "columnSpan", out columnSpan);
            if (isAnimation && isLargeTile)
                return new AtlasGroupLargeTileAnimation(name, row, column, rowSpan, columnSpan, frameCount, direction, frameTime);
            if (isAnimation)
                return new AtlasGroupAnimation(name, row, column, frameCount, direction, frameTime);
            if (isLargeTile)
                return new AtlasGroupLargeTile(name, row, column, rowSpan, columnSpan);
            return default;
        }

        bool TryGetValue<T>(JObject jObject, string propertyName, out T value)
        {
            if (!jObject.TryGetValue(propertyName, out JToken token))
            {
                value = default;
                return false;
            }
            value = token.ToObject<T>() ?? default;
            return value is T;
        }

        public override void WriteJson(JsonWriter writer, AtlasGroup value, JsonSerializer serializer) => serializer.Serialize(writer, value);
    }

    public abstract class AtlasGroup
    {
        [JsonProperty("name", Required = Required.Always)]
        public string Name { get; set; }
        [JsonProperty("row", Required = Required.Always)]
        public int Row { get; }
        [JsonProperty("column", Required = Required.Always)]
        public int Column { get; }

        [JsonIgnore]
        public virtual int Count => 1;

        [JsonIgnore]
        protected abstract bool isAnimation { get; }
        [JsonIgnore]
        protected abstract bool isLargeTile { get; }
        [JsonProperty("direction")]
        public virtual ImageLayoutDirection Direction => Column > Row ? ImageLayoutDirection.Vertical : ImageLayoutDirection.Horizontal;

        public AtlasGroup(string name, int row, int column)
        {
            Name = name;
            Row = Math.Max(0, row);
            Column = Math.Max(0, column);
        }

        public bool IsAnimation() => isAnimation;
        public bool IsLargeTile() => isLargeTile;

        public abstract Size GetSize(Size tileSize);

    }
}