-
Notifications
You must be signed in to change notification settings - Fork 17
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Added new commands /Plane and /PlaneW (for drawing planes)
Thanks LaoTszy for help on the maths in /Plane =)
- Loading branch information
Showing
22 changed files
with
335 additions
and
30 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| // fCraft is Copyright 2009-2012 Matvei Stefarov <[email protected]> | ||
| // TriangleDrawOperation contributed by Conrad "Redshift" Morgan | ||
| using System; | ||
|
|
||
| namespace fCraft.Drawing { | ||
|
|
||
| public sealed class PlaneDrawOperation : DrawOperation { | ||
|
|
||
| public override string Name { | ||
| get { return "Plane"; } | ||
| } | ||
|
|
||
| public override int ExpectedMarks { | ||
| get { return 3; } | ||
| } | ||
|
|
||
| public PlaneDrawOperation( Player player ) | ||
| : base( player ) { | ||
| } | ||
|
|
||
| // Plane vertices. | ||
| private Vector3I a, b, c, d; | ||
|
|
||
| // Edge planes perpendicular to surface, pointing outwards. | ||
| private Vector3F s1, s2, s3, s4; | ||
|
|
||
| private Vector3I normal; | ||
| private Vector3F normalF; | ||
|
|
||
| public override bool Prepare( Vector3I[] marks ) { | ||
| a = marks[0]; | ||
| c = marks[1]; | ||
| b = marks[2]; | ||
|
|
||
| d = new Vector3I( a.X + c.X - b.X, a.Y + c.Y - b.Y, a.Z + c.Z - b.Z ); | ||
|
|
||
| Bounds = new BoundingBox( | ||
| Math.Min( Math.Min( a.X, b.X ), Math.Min( c.X, d.X ) ), | ||
| Math.Min( Math.Min( a.Y, b.Y ), Math.Min( c.Y, d.Y ) ), | ||
| Math.Min( Math.Min( a.Z, b.Z ), Math.Min( c.Z, d.Z ) ), | ||
| Math.Max( Math.Max( a.X, b.X ), Math.Max( c.X, d.X ) ), | ||
| Math.Max( Math.Max( a.Y, b.Y ), Math.Max( c.Y, d.Y ) ), | ||
| Math.Max( Math.Max( a.Z, b.Z ), Math.Max( c.Z, d.Z ) ) | ||
| ); | ||
|
|
||
| Coords = Bounds.MinVertex; | ||
|
|
||
| if ( !base.Prepare( marks ) ) | ||
| return false; | ||
|
|
||
| normal = ( b - a ).Cross( c - a ); | ||
| normalF = normal.Normalize(); | ||
| BlocksTotalEstimate = GetBlockTotalEstimate(); | ||
|
|
||
| s1 = normal.Cross( a - b ).Normalize(); | ||
| s2 = normal.Cross( b - c ).Normalize(); | ||
| s3 = normal.Cross( c - d ).Normalize(); | ||
| s4 = normal.Cross( d - a ).Normalize(); | ||
|
|
||
| return true; | ||
| } | ||
|
|
||
| private int GetBlockTotalEstimate() { | ||
| Vector3I nabs = normal.Abs(); | ||
| return Math.Max( Math.Max( nabs.X, nabs.Y ), nabs.Z ) / 2; | ||
| } | ||
|
|
||
| public override int DrawBatch( int maxBlocksToDraw ) { | ||
| int blocksDone = 0; | ||
| for ( ; Coords.X <= Bounds.XMax; Coords.X++ ) { | ||
| for ( ; Coords.Y <= Bounds.YMax; Coords.Y++ ) { | ||
| for ( ; Coords.Z <= Bounds.ZMax; Coords.Z++ ) { | ||
| if ( IsPlaneBlock() && DrawOneBlock() ) { | ||
| blocksDone++; | ||
| if ( blocksDone >= maxBlocksToDraw ) | ||
| return blocksDone; | ||
| } | ||
| if ( TimeToEndBatch ) | ||
| return blocksDone; | ||
| } | ||
| Coords.Z = Bounds.ZMin; | ||
| } | ||
| Coords.Y = Bounds.YMin; | ||
| } | ||
|
|
||
| IsDone = true; | ||
| return blocksDone; | ||
| } | ||
|
|
||
| private const float Extra = 0.5f; | ||
|
|
||
| private bool IsPlaneBlock() { | ||
| // Early out. | ||
| if ( Math.Abs( normalF.Dot( Coords - a ) ) > 1 ) | ||
| return false; | ||
|
|
||
| // Check if within plane region. | ||
| if ( ( Coords - a ).Dot( s1 ) > Extra || | ||
| ( Coords - b ).Dot( s2 ) > Extra || | ||
| ( Coords - c ).Dot( s3 ) > Extra || | ||
| ( Coords - d ).Dot( s4 ) > Extra ) | ||
| return false; | ||
|
|
||
| // Check if minimal plane block. | ||
| return TestAxis( 1, 0, 0 ) || | ||
| TestAxis( 0, 1, 0 ) || | ||
| TestAxis( 0, 0, 1 ); | ||
| } | ||
|
|
||
| // Checks distance to plane along axis. | ||
| private bool TestAxis( int x, int y, int z ) { | ||
| Vector3I v = new Vector3I( x, y, z ); | ||
| int numerator = normal.Dot( a - Coords ); | ||
| int denominator = normal.Dot( v ); | ||
| if ( denominator == 0 ) | ||
| return numerator == 0; | ||
| double distance = ( double )numerator / denominator; | ||
| return distance > -0.5 && distance <= 0.5; | ||
| } | ||
| } | ||
| } |
Oops, something went wrong.