refactor(PepLib.Core): modernize and deduplicate Program class

- Extract ApplyTransform() to consolidate Rotate/Offset methods
- Add BoundsTracker helper class for bounding box calculations
- Extract ProcessLinearMotion/ProcessCircularMotion helpers
- Use pattern matching instead of type checks and casts
- Use foreach loops instead of indexed for loops
- Use expression-bodied members for simple methods
- Use tuple deconstruction and Math.Min/Max

Reduces code from 368 to 227 lines (~38% reduction).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
2026-01-23 09:53:20 -05:00
parent a0c707583d
commit 72cdb32750

View File

@@ -18,7 +18,7 @@ namespace PepLib.Models
public ProgrammingMode Mode
{
get { return mode; }
get => mode;
set
{
if (value == ProgrammingMode.Absolute)
@@ -37,12 +37,9 @@ namespace PepLib.Models
var pos = new Vector(0, 0);
for (int i = 0; i < Count; ++i)
foreach (var code in this)
{
var code = this[i];
var motion = code as Motion;
if (motion != null)
if (code is Motion motion)
{
var pos2 = motion.EndPoint;
motion.Offset(-pos.X, -pos.Y);
@@ -60,12 +57,9 @@ namespace PepLib.Models
var pos = new Vector(0, 0);
for (int i = 0; i < Count; ++i)
foreach (var code in this)
{
var code = this[i];
var motion = code as Motion;
if (motion != null)
if (code is Motion motion)
{
motion.Offset(pos);
pos = motion.EndPoint;
@@ -75,112 +69,38 @@ namespace PepLib.Models
mode = ProgrammingMode.Absolute;
}
public virtual void Rotate(double angle)
{
var mode = Mode;
public virtual void Rotate(double angle) =>
ApplyTransform(code => (code as IMovable)?.Rotate(angle), angle);
public virtual void Rotate(double angle, Vector origin) =>
ApplyTransform(code => (code as IMovable)?.Rotate(angle, origin), angle);
public void Offset(double x, double y) =>
ApplyTransform(code => (code as IMovable)?.Offset(x, y));
public void Offset(Vector voffset) =>
ApplyTransform(code => (code as IMovable)?.Offset(voffset));
private void ApplyTransform(Action<ICode> transform, double? rotationAngle = null)
{
var previousMode = Mode;
SetProgrammingModeAbs();
for (int i = 0; i < Count; ++i)
foreach (var code in this)
{
var code = this[i];
if (code.CodeType() == CodeType.SubProgramCall)
if (rotationAngle.HasValue && code is SubProgramCall subpgm)
{
var subpgm = (SubProgramCall)code;
if (subpgm.Loop != null)
subpgm.Loop.Rotate(angle);
subpgm.Loop?.Rotate(rotationAngle.Value);
}
if (code is IMovable == false)
continue;
var code2 = (IMovable)code;
code2.Rotate(angle);
transform(code);
}
if (mode == ProgrammingMode.Incremental)
if (previousMode == ProgrammingMode.Incremental)
SetProgrammingModeInc();
Rotation = MathHelper.NormalizeAngleRad(Rotation + angle);
}
public virtual void Rotate(double angle, Vector origin)
{
var mode = Mode;
SetProgrammingModeAbs();
for (int i = 0; i < Count; ++i)
{
var code = this[i];
if (code.CodeType() == CodeType.SubProgramCall)
{
var subpgm = (SubProgramCall)code;
if (subpgm.Loop != null)
subpgm.Loop.Rotate(angle);
}
if (code is IMovable == false)
continue;
var code2 = (IMovable)code;
code2.Rotate(angle, origin);
}
if (mode == ProgrammingMode.Incremental)
SetProgrammingModeInc();
Rotation = MathHelper.NormalizeAngleRad(Rotation + angle);
}
public void Offset(double x, double y)
{
var mode = Mode;
SetProgrammingModeAbs();
for (int i = 0; i < Count; ++i)
{
var code = this[i];
if (code is IMovable == false)
continue;
var code2 = (IMovable)code;
code2.Offset(x, y);
}
if (mode == ProgrammingMode.Incremental)
SetProgrammingModeInc();
}
public void Offset(Vector voffset)
{
var mode = Mode;
SetProgrammingModeAbs();
for (int i = 0; i < Count; ++i)
{
var code = this[i];
if (code is IMovable == false)
continue;
var code2 = (IMovable)code;
code2.Offset(voffset);
}
if (mode == ProgrammingMode.Incremental)
SetProgrammingModeInc();
if (rotationAngle.HasValue)
Rotation = MathHelper.NormalizeAngleRad(Rotation + rotationAngle.Value);
}
public Box GetBoundingBox()
@@ -191,171 +111,78 @@ namespace PepLib.Models
private Box GetBoundingBox(ref Vector pos)
{
double minX = 0.0;
double minY = 0.0;
double maxX = 0.0;
double maxY = 0.0;
var bounds = new BoundsTracker();
for (int i = 0; i < Count; ++i)
foreach (var code in this)
{
var code = this[i];
switch (code.CodeType())
switch (code)
{
case CodeType.LinearMove:
{
var line = (LinearMove)code;
var pt = Mode == ProgrammingMode.Absolute ?
line.EndPoint :
line.EndPoint + pos;
case LinearMove line:
pos = ProcessLinearMotion(line.EndPoint, pos, bounds);
break;
if (pt.X > maxX)
maxX = pt.X;
else if (pt.X < minX)
minX = pt.X;
case RapidMove rapid:
pos = ProcessLinearMotion(rapid.EndPoint, pos, bounds);
break;
if (pt.Y > maxY)
maxY = pt.Y;
else if (pt.Y < minY)
minY = pt.Y;
case CircularMove arc:
pos = ProcessCircularMotion(arc, pos, bounds);
break;
pos = pt;
break;
}
case CodeType.RapidMove:
{
var line = (RapidMove)code;
var pt = Mode == ProgrammingMode.Absolute
? line.EndPoint
: line.EndPoint + pos;
if (pt.X > maxX)
maxX = pt.X;
else if (pt.X < minX)
minX = pt.X;
if (pt.Y > maxY)
maxY = pt.Y;
else if (pt.Y < minY)
minY = pt.Y;
pos = pt;
break;
}
case CodeType.CircularMove:
{
var arc = (CircularMove)code;
var radius = arc.CenterPoint.DistanceTo(arc.EndPoint);
Vector endpt;
Vector centerpt;
if (Mode == ProgrammingMode.Incremental)
{
endpt = arc.EndPoint + pos;
centerpt = arc.CenterPoint + pos;
}
else
{
endpt = arc.EndPoint;
centerpt = arc.CenterPoint;
}
double minX1;
double minY1;
double maxX1;
double maxY1;
if (pos.X < endpt.X)
{
minX1 = pos.X;
maxX1 = endpt.X;
}
else
{
minX1 = endpt.X;
maxX1 = pos.X;
}
if (pos.Y < endpt.Y)
{
minY1 = pos.Y;
maxY1 = endpt.Y;
}
else
{
minY1 = endpt.Y;
maxY1 = pos.Y;
}
var startAngle = pos.AngleFrom(centerpt);
var endAngle = endpt.AngleFrom(centerpt);
// switch the angle to counter clockwise.
if (arc.Rotation == RotationType.CW)
Generic.Swap(ref startAngle, ref endAngle);
startAngle = MathHelper.NormalizeAngleRad(startAngle);
endAngle = MathHelper.NormalizeAngleRad(endAngle);
if (MathHelper.IsAngleBetween(MathHelper.HalfPI, startAngle, endAngle))
maxY1 = centerpt.Y + radius;
if (MathHelper.IsAngleBetween(Math.PI, startAngle, endAngle))
minX1 = centerpt.X - radius;
const double oneHalfPI = Math.PI * 1.5;
if (MathHelper.IsAngleBetween(oneHalfPI, startAngle, endAngle))
minY1 = centerpt.Y - radius;
if (MathHelper.IsAngleBetween(MathHelper.TwoPI, startAngle, endAngle))
maxX1 = centerpt.X + radius;
if (maxX1 > maxX)
maxX = maxX1;
if (minX1 < minX)
minX = minX1;
if (maxY1 > maxY)
maxY = maxY1;
if (minY1 < minY)
minY = minY1;
pos = endpt;
break;
}
case CodeType.SubProgramCall:
{
var subpgm = (SubProgramCall)code;
var box = subpgm.Loop.GetBoundingBox(ref pos);
if (box.Left < minX)
minX = box.Left;
if (box.Right > maxX)
maxX = box.Right;
if (box.Bottom < minY)
minY = box.Bottom;
if (box.Top > maxY)
maxY = box.Top;
break;
}
case SubProgramCall subpgm:
var box = subpgm.Loop.GetBoundingBox(ref pos);
bounds.ExpandTo(box);
break;
}
}
return new Box(minX, minY, maxX - minX, maxY - minY);
return bounds.ToBox();
}
private Vector ProcessLinearMotion(Vector endPoint, Vector pos, BoundsTracker bounds)
{
var pt = Mode == ProgrammingMode.Absolute ? endPoint : endPoint + pos;
bounds.Include(pt);
return pt;
}
private Vector ProcessCircularMotion(CircularMove arc, Vector pos, BoundsTracker bounds)
{
var radius = arc.CenterPoint.DistanceTo(arc.EndPoint);
var (endpt, centerpt) = Mode == ProgrammingMode.Incremental
? (arc.EndPoint + pos, arc.CenterPoint + pos)
: (arc.EndPoint, arc.CenterPoint);
// Start with endpoint bounds
var minX = Math.Min(pos.X, endpt.X);
var maxX = Math.Max(pos.X, endpt.X);
var minY = Math.Min(pos.Y, endpt.Y);
var maxY = Math.Max(pos.Y, endpt.Y);
// Check if arc crosses cardinal directions
var startAngle = MathHelper.NormalizeAngleRad(pos.AngleFrom(centerpt));
var endAngle = MathHelper.NormalizeAngleRad(endpt.AngleFrom(centerpt));
// Switch angles for clockwise arcs
if (arc.Rotation == RotationType.CW)
Generic.Swap(ref startAngle, ref endAngle);
// Expand bounds if arc crosses cardinal points
if (MathHelper.IsAngleBetween(MathHelper.HalfPI, startAngle, endAngle))
maxY = centerpt.Y + radius;
if (MathHelper.IsAngleBetween(Math.PI, startAngle, endAngle))
minX = centerpt.X - radius;
if (MathHelper.IsAngleBetween(Math.PI * 1.5, startAngle, endAngle))
minY = centerpt.Y - radius;
if (MathHelper.IsAngleBetween(MathHelper.TwoPI, startAngle, endAngle))
maxX = centerpt.X + radius;
bounds.Expand(minX, minY, maxX, maxY);
return endpt;
}
public static Program Load(Stream stream)
@@ -364,5 +191,36 @@ namespace PepLib.Models
reader.Read(stream);
return reader.Program;
}
private class BoundsTracker
{
private double minX, minY, maxX, maxY;
public void Include(Vector pt)
{
if (pt.X < minX) minX = pt.X;
if (pt.X > maxX) maxX = pt.X;
if (pt.Y < minY) minY = pt.Y;
if (pt.Y > maxY) maxY = pt.Y;
}
public void Expand(double left, double bottom, double right, double top)
{
if (left < minX) minX = left;
if (right > maxX) maxX = right;
if (bottom < minY) minY = bottom;
if (top > maxY) maxY = top;
}
public void ExpandTo(Box box)
{
if (box.Left < minX) minX = box.Left;
if (box.Right > maxX) maxX = box.Right;
if (box.Bottom < minY) minY = box.Bottom;
if (box.Top > maxY) maxY = box.Top;
}
public Box ToBox() => new(minX, minY, maxX - minX, maxY - minY);
}
}
}