start adding cargo offset editing for trainstation

Author: LeftofZen

Dat/Objects/TrainStationObject.cs

@@ -12,7 +12,20 @@ public enum TrainStationObjectFlags : uint8_t
 		None = 0,
 		Recolourable = 1 << 0,
 		NoGlass = 1 << 1,
-	};
+	}
+
+	[TypeConverter(typeof(ExpandableObjectConverter))]
+	[LocoStructSize(0x06)]
+	public record CargoOffset(
+		[property: LocoStructOffset(0x00)] Pos3 A,
+		[property: LocoStructOffset(0x06)] Pos3 B
+		) : ILocoStruct
+	{
+		public CargoOffset() : this(new Pos3(), new Pos3())
+		{ }
+
+		public bool Validate() => true;
+	}
 
 	[TypeConverter(typeof(ExpandableObjectConverter))]
 	[LocoStructSize(0xAE)]
@@ -30,9 +43,9 @@ public record TrainStationObject(
 		[property: LocoStructOffset(0x0C)] TrainStationObjectFlags Flags,
 		[property: LocoStructOffset(0x0D)] uint8_t var_0D,
 		[property: LocoStructOffset(0x0E), LocoStructVariableLoad, Browsable(false)] image_id Image,
-		[property: LocoStructOffset(0x12), LocoArrayLength(TrainStationObject.MaxImageOffsets)] uint32_t[] ImageOffsets,
+		[property: LocoStructOffset(0x12), LocoArrayLength(TrainStationObject.MaxImageOffsets), Browsable(false)] uint32_t[] ImageOffsets,
 		[property: LocoStructOffset(0x22)] uint8_t CompatibleTrackObjectCount,
-		[property: LocoStructOffset(0x23), LocoArrayLength(TrainStationObject.MaxNumCompatible)] object_id[] _Compatible,
+		[property: LocoStructOffset(0x23), LocoArrayLength(TrainStationObject.MaxNumCompatible), Browsable(false)] object_id[] _Compatible, // only used for runtime loco, this isn't part of object 'definition'
 		[property: LocoStructOffset(0x2A)] uint16_t DesignedYear,
 		[property: LocoStructOffset(0x2C)] uint16_t ObsoleteYear,
 		[property: LocoStructOffset(0x2E), LocoStructVariableLoad, LocoArrayLength(TrainStationObject.CargoOffsetBytesSize), Browsable(false)] uint8_t[] _CargoOffsetBytes,
@@ -45,10 +58,14 @@ public record TrainStationObject(
 		public const int MaxNumCompatible = 7;
 		public const int ManualPowerLength = 16;
 		public const int CargoOffsetBytesSize = 16;
+		public const int MaxStationCargoDensity = 15;
+
 		public uint8_t[][][] CargoOffsetBytes { get; set; }
 
 		public uint8_t[][] ManualPower { get; set; }
 
+		public CargoOffset[] CargoOffsets { get; init; } = Enumerable.Repeat(new CargoOffset(), 15).ToArray();
+
 		public ReadOnlySpan<byte> Load(ReadOnlySpan<byte> remainingData)
 		{
 			// compatible
@@ -104,7 +121,7 @@ public ReadOnlySpan<byte> Save()
 		{
 			using (var ms = new MemoryStream())
 			{
-				// compatible
+				// compatible track objects
 				foreach (var co in CompatibleTrackObjects)
 				{
 					ms.Write(co.Write());

Dat/Types/Typedefs.cs

@@ -1,4 +1,5 @@
 global using char_t = System.Byte;
+global using coord_t = System.Int16;
 global using image_id = System.UInt32;
 global using int16_t = System.Int16;
 global using int32_t = System.Int32;
@@ -21,8 +22,19 @@ namespace OpenLoco.Dat.Types
 	[TypeConverter(typeof(ExpandableObjectConverter))]
 	[LocoStructSize(0x04)]
 	public record Pos2(
-		[property: LocoStructOffset(0x00)] int16_t X,
-		[property: LocoStructOffset(0x02)] int16_t Y
+		[property: LocoStructOffset(0x00)] coord_t X = 0,
+		[property: LocoStructOffset(0x02)] coord_t Y = 0
+		) : ILocoStruct
+	{
+		public bool Validate() => true;
+	}
+
+	[TypeConverter(typeof(ExpandableObjectConverter))]
+	[LocoStructSize(0x06)]
+	public record Pos3(
+		[property: LocoStructOffset(0x00)] coord_t X = 0,
+		[property: LocoStructOffset(0x02)] coord_t Y = 0,
+		[property: LocoStructOffset(0x04)] coord_t Z = 0
 		) : ILocoStruct
 	{
 		public bool Validate() => true;