public override void MakeTrunk()
{
int starty = Pos[1];
int midy = ( int )( Pos[1] + TrunkHeight * .382 );
int topy = ( int )( Pos[1] + TrunkHeight + .5 );
int x = Pos[0];
int z = Pos[2];
float midrad = TrunkRadius * .8f;
float endrad = TrunkRadius * ( 1 - TrunkHeight / Height );
if ( endrad < 1 )
endrad = 1;
if ( midrad < endrad )
midrad = endrad;
float startrad;
List<RootBase> rootbases = new List<RootBase>();
if ( Args.RootButtresses || Args.Shape == TreeShape.Mangrove ) {
startrad = TrunkRadius * .8f;
rootbases.Add( new RootBase {
X = x,
Z = z,
Radius = startrad
} );
float buttressRadius = TrunkRadius * .382f;
float posradius = TrunkRadius;
if ( Args.Shape == TreeShape.Mangrove ) {
posradius *= 2.618f;
}
int numOfButtresss = ( int )( Math.Sqrt( TrunkRadius ) + 3.5 );
for ( int i = 0; i < numOfButtresss; i++ ) {
float rndang = ( float )( Args.Rand.NextDouble() * 2 * Math.PI );
float thisposradius = ( float )( posradius * ( .9 + Args.Rand.NextDouble() * .2 ) );
int thisx = x + ( int )( thisposradius * Math.Sin( rndang ) );
int thisz = z + ( int )( thisposradius * Math.Cos( rndang ) );
float thisbuttressradius = ( float )( buttressRadius * ( .618 + Args.Rand.NextDouble() ) );
if ( thisbuttressradius < 1 )
thisbuttressradius = 1;
TaperedLimb( new Vector3I( thisx, starty, thisz ), new Vector3I( x, midy, z ),
thisbuttressradius, thisbuttressradius );
rootbases.Add( new RootBase {
X = thisx,
Z = thisz,
Radius = thisbuttressradius
} );
}
} else {
startrad = TrunkRadius;
rootbases.Add( new RootBase {
X = x,
Z = z,
Radius = startrad
} );
}
TaperedLimb( new Vector3I( x, starty, z ), new Vector3I( x, midy, z ), startrad, midrad );
TaperedLimb( new Vector3I( x, midy, z ), new Vector3I( x, topy, z ), midrad, endrad );
MakeBranches();
if ( Args.Roots != RootMode.None ) {
MakeRoots( rootbases.ToArray() );
}
}
