public void DrawBranch( ref ZVector3f Position, ref ZPolar3f BranchVector, float TotalBranchLen )
{
ZVector3f NewPosition;
ZPolar3f NewBranchVector;
ZRect3L Rect;
ZRect1f Thickness;
uint nSubDivisions;
float Angle1, Angle2, NewTotalBranchLen;
NewTotalBranchLen = TotalBranchLen + BranchVector.Len;
if( NewTotalBranchLen > MaxBranchLenght ) return;
NewPosition = Position + BranchVector;
Rect.Start = Position + 0.5f;
Rect.End = NewPosition + 0.5f;
Thickness.Start = ThicknessInterpolator.Interpolate( TotalBranchLen ); Thickness.End = ThicknessInterpolator.Interpolate( NewTotalBranchLen );
// Thickness.Start = 0.5; Thickness.End = 0.5;
// printf("S:%lu (%ld,%ld,%ld = %ld,%ld,%ld)\n", nStep, Rect.Start.x, Rect.Start.y, Rect.Start.z, Rect.End.x, Rect.End.y, Rect.End.z );
if( TotalBranchLen > 0 ) Sector.Draw_safe_VoxelLine( ref Rect, ref Thickness, 72 );
if( HasFolliage && NewTotalBranchLen > FolliageLenght ) Sector.Draw_safe_Sphere( Rect.End.x, Rect.End.y, Rect.End.z, 10, 70, false );
if( RandomSubdivs ) nSubDivisions = MinSubDivisionsPerNode + (uint)Random.GetNumber() % MaxSubDivisionsPerNode;
else nSubDivisions = MinSubDivisionsPerNode;
if( TotalBranchLen > ( MaxBranchLenght / 10 ) && nSubDivisions > 2 ) nSubDivisions = 2;
//if (nSubDivisions>2) nSubDivisions = 2;
nSubDivisions = 1;
switch( nSubDivisions )
{
case 1:
NewBranchVector = BranchVector;
NewBranchVector.Len = BrancheLen;
Angle1 = (float)( Random.GetNumber() ) / 23860929 / 6;
Angle2 = (float)( Random.GetNumber() ) / 23860929 / 6;
//NewBranchVector.pitch += Angle1; NewBranchVector.yaw += Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
break;
case 2:
case 3:
case 4:
default:
NewBranchVector = BranchVector;
NewBranchVector.Len = BrancheLen;
do
{
Angle1 = (float)( Random.GetNumber() ) / 23860929 / 3;
Angle2 = (float)( Random.GetNumber() ) / 23860929 / 3;
} while( Math.Abs( Angle1 ) < 15 && Math.Abs( Angle2 ) < 15 );
NewBranchVector.pitch += Angle1; NewBranchVector.yaw += Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
NewBranchVector = BranchVector;
NewBranchVector.pitch -= Angle1; NewBranchVector.yaw -= Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
break;
}
}
public void DrawTree( VoxelSector Sector, ref ZVector3f BasePosition )
{
ZVector3f Position;
float[] ThicknessTable = { 2, 1 };
//printf("-----------------------Draw Tree---------------------------\n");
//printf("Seed : %lu",Seed);
Random.Init( Seed );
ThicknessInterpolator.SetValuesTable( ThicknessTable, 2 );
ThicknessInterpolator.SetBounds( 0, MaxBranchLenght );
this.Sector = Sector;
Position = BasePosition;
DrawTrunc( ref Position, ref StartingDirection );
DrawSecundaryTrunc( ref Position, ref StartingDirection, 0 );
}
void DrawSecundaryTrunc( ref ZVector3f Position, ref ZPolar3f BranchVector, float TotalBranchLen )
{
ZVector3f NewPosition;
ZPolar3f NewBranchVector;
ZRect3L Rect;
ZRect1f Thickness;
//uint nSubDivisions;
float Angle1, Angle2, NewTotalBranchLen;
NewTotalBranchLen = TotalBranchLen + BranchVector.Len;
if( NewTotalBranchLen > MaxBranchLenght ) return;
NewPosition = Position + BranchVector;
Rect.Start = Position + 0.5f;
Rect.End = NewPosition + 0.5f;
Thickness.Start = ThicknessInterpolator.Interpolate( TotalBranchLen ); Thickness.End = ThicknessInterpolator.Interpolate( NewTotalBranchLen );
if( TotalBranchLen > 0 ) Sector.Draw_safe_VoxelLine( ref Rect, ref Thickness, 72 );
// la branche
NewBranchVector = BranchVector;
NewBranchVector.Len = BrancheLen;
Angle1 = (float)( Random.GetNumber() ) / 23860929 / 3;
Angle2 = (float)( Random.GetNumber() ) / 23860929 / 3;
if( Angle1 > 0 ) Angle1 += 15.0f;
if( Angle1 < 0 ) Angle1 -= 15.0f;
if( Angle2 > 0 ) Angle2 += 15.0f;
if( Angle2 < 0 ) Angle2 -= 15.0f;
NewBranchVector.pitch += Angle1;
NewBranchVector.yaw += Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen / 2 + 50 );
// Le tronc central
NewBranchVector = BranchVector;
NewBranchVector.Len = SecundaryTruncSegmentLenght;
DrawSecundaryTrunc( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
}
void DrawTrunc( ref ZVector3f Position, ref ZPolar3f Direction )
{
ZRect3L Rect;
//ZRect1f Thickness;
uint Number;
float[] ThickTable = { 5, 4, 3, 3, 2, 2, 2 };
//Thickness.Start = 5;
//Thickness.End = 5;
Number = (uint)Random.GetNumber();
TruncHeight = 10 + ( Number / 71582788 );
Rect.Start = Position + 0.5f;
float savelen = Direction.Len;
Direction.Len *= TruncHeight;
Position = Position + Direction;
Direction.Len = savelen;
Rect.End = Position + 0.5f;
//Sector.Draw_safe_VoxelLine(&Rect,&Thickness,67);
Sector.Draw_safe_VoxelLine_TickCtl( ref Rect, ThickTable, 7, 72 );
}
public void DrawBranch( ref ZVector3f Position, ref ZPolar3f BranchVector, float TotalBranchLen )
{
ZVector3f NewPosition;
ZPolar3f NewBranchVector;
ZRect3L Rect;
ZRect1f Thickness;
uint nSubDivisions;
float Angle1, Angle2, NewTotalBranchLen;
NewTotalBranchLen = TotalBranchLen + BranchVector.Len;
if( NewTotalBranchLen > MaxBranchLenght ) return;
NewPosition = Position + BranchVector;
Rect.Start = Position + 0.5f;
Rect.End = NewPosition + 0.5f;
Thickness.Start = ThicknessInterpolator.Interpolate( TotalBranchLen ); Thickness.End = ThicknessInterpolator.Interpolate( NewTotalBranchLen );
// Thickness.Start = 0.5; Thickness.End = 0.5;
// printf("S:%lu (%ld,%ld,%ld = %ld,%ld,%ld)\n", nStep, Rect.Start.x, Rect.Start.y, Rect.Start.z, Rect.End.x, Rect.End.y, Rect.End.z );
if( TotalBranchLen > 0 ) Sector.Draw_safe_VoxelLine( ref Rect, ref Thickness, 72 );
if( HasFolliage && NewTotalBranchLen > FolliageLenght ) Sector.Draw_safe_Sphere( Rect.End.x, Rect.End.y, Rect.End.z, 10.0, 70, false );
if( RandomSubdivs ) nSubDivisions = (uint)(MinSubDivisionsPerNode + Random.GetNumber() % MaxSubDivisionsPerNode);
else nSubDivisions = MinSubDivisionsPerNode;
if( TotalBranchLen > ( MaxBranchLenght / 10.0 ) && nSubDivisions > 2 ) nSubDivisions = 2;
//if (nSubDivisions>2) nSubDivisions = 2;
switch( nSubDivisions )
{
case 1:
NewBranchVector = BranchVector;
NewBranchVector.Len = BrancheLen;
Angle1 = (float)( Random.GetNumber() ) / 23860929 / 3; Angle2 = (float)( Random.GetNumber() ) / 23860929 / 3;
NewBranchVector.pitch += Angle1; NewBranchVector.yaw += Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
break;
case 2:
case 3:
case 4:
default:
NewBranchVector = BranchVector;
NewBranchVector.Len = BrancheLen;
do
{
Angle1 = (float)( Random.GetNumber() ) / 23860929 / 3; Angle2 = (float)( Random.GetNumber() ) / 23860929 / 3;
} while( Math.Abs( Angle1 ) < 15.0 && Math.Abs( Angle2 ) < 15.0 );
NewBranchVector.pitch += Angle1; NewBranchVector.yaw += Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
NewBranchVector = BranchVector;
NewBranchVector.pitch -= Angle1; NewBranchVector.yaw -= Angle2;
DrawBranch( ref NewPosition, ref NewBranchVector, NewTotalBranchLen );
break;
case 2536:
/*
for (i=0;i<nSubDivisions;i++)
{
NewBranchVector = *BranchVector;
NewBranchVector.Len = BrancheLen;
Angle1 = (double) ((Long)Random.GetNumber()) / 23860929 / 3;
Angle2 = (double) ((Long)Random.GetNumber()) / 23860929 / 3;
if (Angle1>0 && Angle1<30) Angle1 = 30;
if (Angle1<0 && Angle1>-30)Angle1 = -30;
if (Angle2>0 && Angle2<30) Angle2 = 30;
if (Angle2<0 && Angle2>-30)Angle2 = -30;
NewBranchVector.pitch += Angle1;
NewBranchVector.yaw += Angle2;
// NewBranchVector.pitch -= Angle1;
// NewBranchVector.yaw -= Angle2;
DrawBranch(&NewPosition, &NewBranchVector, NewTotalBranchLen);
}
*/
break;
}
// Tronc central qui continue.
/*
NewBranchVector = *BranchVector;
NewBranchVector.Len = BrancheLen * 2.0;
DrawBranch(&NewPosition, &NewBranchVector, NewTotalBranchLen);
*/
}
