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More accurate and simplified coordinate conversions.

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PunishedPineapple
2022-04-06 03:49:01 -05:00
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docs/MapCoordinates.md
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# Conversions to 2D Map
### Version of an in-game coordinate to a 2D map coordinate
**By: Clorifex, slightly modified by: Vekien - In C#**
https://github.com/xivapi/xivapi-mappy/blob/master/Mappy/Helpers/MapHelper.cs
### Conversion of world coordinates to a 2D map texture coordinate (in pixels):
```csharp
public static double ConvertCoordinatesIntoMapPosition(double scale, double offset, double val)
public static Vector2 GetPixelCoordinates( Vector2 worldXZCoordinates, Vector2 mapOffset, UInt16 mapSizeFactor )
{
val = Math.Round(val, 3);
val = (val + offset) * scale;
return ((41.0 / scale) * ((val + 1024.0) / 2048.0)) + 1;
return ( worldXZCoordinates + mapOffset ) / 100f * mapSizeFactor + new Vector2( 1024f );
}
```
This assumes using the normal map textures that are 2048x2048. If you're using the small (1024x1024) map textures, divide the result by two.
### Conversion of a Level coordinate into a 2D map coordinate:
**By: Clorifex - In C#**
### Conversion of map texture pixel coordinates (such as FishingSpot coordinates) to in-game 2D map coordinates:
```csharp
private double ToMapCoordinate(double val) {
var c = Map.SizeFactor / 100.0;
val *= c;
return ((41.0 / c) * ((val + 1024.0) / 2048.0)) + 1;
}
```
### Conversion of a FishingSpot coordinate into a 2D map coordinate:
**By: Clorifex - In C#**
```csharp
private double ToMapCoordinate(double val) {
var c = TerritoryType.Map.SizeFactor / 100.0;
return (41.0 / c) * ((val) / 2048.0) + 1;
}
```
### Conversion of MapPosition to Pixels
**By: Vekien - In C#**
https://github.com/xivapi/xivapi-mappy/blob/master/Mappy/Helpers/MapHelper.cs
```csharp
public static int ConvertMapPositionToPixels(double value, double scale)
public static Vector2 GetGameMapCoordinates( Vector2 mapPixelCoordinates, UInt16 mapSizeFactor )
{
return Convert.ToInt32((value - 1) * 50 * scale);
return mapPixelCoordinates / mapSizeFactor * 2f + Vector2.One;
}
```
### Conversion of world coordinates to in-game 2D map coordinates (using the above functions):
```csharp
public static Vector2 WorldToMapCoordinates( Vector2 worldXZCoordinates, Vector2 mapOffset, UInt16 mapSizeFactor )
{
return GetGameMapCoordinates( GetPixelCoordinates( worldXZCoordinates, mapOffset, mapSizeFactor ), mapSizeFactor );
}
```
The game *truncates* the result of this to the first decimal place.
----
To translate a `levels.exd` position to an in-game X/Y: