mrazza / gonav Goto Github PK

The parser does not actually parse custom data. These lines in parser.go:

// Skip passed some unknown data
var garbageCount byte
p.read(&garbageCount)
p.advanceBytes(int(garbageCount) * 14)

Actually skips over game-specific custom area data.

• Team Fortress 2 NAVs stores 1 integer at the end of the area data to store TF2-specific area attributes.

It's possible create a tool for reverse bytes for x360?

Doesn't appear to work on the latest Go version using dust2's nav file. I'm using the example in the README.

f, _ := os.Open("de_dust2.nav") // Open the file
parser := gonav.Parser{Reader: f}
mesh, _ := parser.Parse() // Parse the file
area := mesh.QuadTreeAreas.FindAreaByPoint(gonav.Vector3{10, 10, 10}, true) // Find the nav area that contains the world point {10, 10} with a Z-value closest to 10
fmt.Println(area)

I think the problem is in parser.go on line 193. I believe

p.read(currSpot.OrderID)

should read

p.read(&currSpot.OrderID)

That appeared to fix the problem for me. Otherwise, you get the following error:

Failed to open file: Unexpected error when parsing: Failed to read data.
Parent error: binary.Read: invalid type uint32.

The navmesh file contains connections in the order +x, +y, -x, -y (counter-clockwise), or east, north, west, south. However, nav_compass 1 shows a compass with NESW going counterclockwise (:-1:), so perhaps it's best to avoid these terms altogether. The 32 bit value stored for each ladder is not up or down, it's also a cardinal direction. It seems to be the direction of the bottom area relative to the ladder. Check de_sugarcane for a map with all four ladder directions.