createCharacter method
Makes a character whose feet are at position; 0 when it cannot be
made.
Implementation
@override
int createCharacter(CharacterSettings3D settings, Vector3 position) {
if (_gone) return 0;
final s = _characterSettings.ref;
s
..radius = settings.radius
..halfHeight = settings.halfHeight
..maxSlopeAngle = settings.maxSlopeAngle
..mass = settings.mass
..maxStrength = settings.maxStrength
..padding = 0
..predictiveContactDistance = 0
..penetrationRecoverySpeed = 0
..layer = settings.layer
..innerBody = settings.innerBody
..enhancedInternalEdgeRemoval = false
..userData = settings.userData;
s.up[0] = settings.up.x;
s.up[1] = settings.up.y;
s.up[2] = settings.up.z;
_f
..[0] = position.x
..[1] = position.y
..[2] = position.z;
final character = jj_character_create(handle, _characterSettings, _f);
if (character != 0) _characters.add(character);
return character;
}