Add y2023_bot3 folder
Signed-off-by: James (Peilun) Li <jamespeilunli@gmail.com>
Change-Id: I6fae2492d0497596a632efc79a6a258c0ca15f49
diff --git a/y2023_bot3/autonomous/auto_splines.cc b/y2023_bot3/autonomous/auto_splines.cc
new file mode 100644
index 0000000..e2779c4
--- /dev/null
+++ b/y2023_bot3/autonomous/auto_splines.cc
@@ -0,0 +1,126 @@
+#include "y2023_bot3/autonomous/auto_splines.h"
+
+#include "aos/flatbuffer_merge.h"
+#include "frc971/control_loops/control_loops_generated.h"
+
+namespace y2023_bot3 {
+namespace autonomous {
+
+namespace {
+flatbuffers::Offset<frc971::MultiSpline> FixSpline(
+ aos::Sender<frc971::control_loops::drivetrain::SplineGoal>::Builder
+ *builder,
+ flatbuffers::Offset<frc971::MultiSpline> spline_offset,
+ aos::Alliance alliance) {
+ frc971::MultiSpline *spline =
+ GetMutableTemporaryPointer(*builder->fbb(), spline_offset);
+ flatbuffers::Vector<float> *spline_x = spline->mutable_spline_x();
+
+ // For 2023: The field is mirrored across the center line, and is not
+ // rotationally symmetric. As such, we only flip the X coordinates when
+ // changing side of the field.
+ if (alliance == aos::Alliance::kBlue) {
+ for (size_t ii = 0; ii < spline_x->size(); ++ii) {
+ spline_x->Mutate(ii, -spline_x->Get(ii));
+ }
+ }
+ return spline_offset;
+}
+} // namespace
+
+flatbuffers::Offset<frc971::MultiSpline> AutonomousSplines::BasicSSpline(
+ aos::Sender<frc971::control_loops::drivetrain::SplineGoal>::Builder
+ *builder,
+ aos::Alliance alliance) {
+ flatbuffers::Offset<frc971::Constraint> longitudinal_constraint_offset;
+ flatbuffers::Offset<frc971::Constraint> lateral_constraint_offset;
+ flatbuffers::Offset<frc971::Constraint> voltage_constraint_offset;
+
+ {
+ frc971::Constraint::Builder longitudinal_constraint_builder =
+ builder->MakeBuilder<frc971::Constraint>();
+ longitudinal_constraint_builder.add_constraint_type(
+ frc971::ConstraintType::LONGITUDINAL_ACCELERATION);
+ longitudinal_constraint_builder.add_value(1.0);
+ longitudinal_constraint_offset = longitudinal_constraint_builder.Finish();
+ }
+
+ {
+ frc971::Constraint::Builder lateral_constraint_builder =
+ builder->MakeBuilder<frc971::Constraint>();
+ lateral_constraint_builder.add_constraint_type(
+ frc971::ConstraintType::LATERAL_ACCELERATION);
+ lateral_constraint_builder.add_value(1.0);
+ lateral_constraint_offset = lateral_constraint_builder.Finish();
+ }
+
+ {
+ frc971::Constraint::Builder voltage_constraint_builder =
+ builder->MakeBuilder<frc971::Constraint>();
+ voltage_constraint_builder.add_constraint_type(
+ frc971::ConstraintType::VOLTAGE);
+ voltage_constraint_builder.add_value(6.0);
+ voltage_constraint_offset = voltage_constraint_builder.Finish();
+ }
+
+ flatbuffers::Offset<
+ flatbuffers::Vector<flatbuffers::Offset<frc971::Constraint>>>
+ constraints_offset =
+ builder->fbb()->CreateVector<flatbuffers::Offset<frc971::Constraint>>(
+ {longitudinal_constraint_offset, lateral_constraint_offset,
+ voltage_constraint_offset});
+
+ const float startx = 0.4;
+ const float starty = 3.4;
+ flatbuffers::Offset<flatbuffers::Vector<float>> spline_x_offset =
+ builder->fbb()->CreateVector<float>({0.0f + startx, 0.6f + startx,
+ 0.6f + startx, 0.4f + startx,
+ 0.4f + startx, 1.0f + startx});
+ flatbuffers::Offset<flatbuffers::Vector<float>> spline_y_offset =
+ builder->fbb()->CreateVector<float>({starty - 0.0f, starty - 0.0f,
+ starty - 0.3f, starty - 0.7f,
+ starty - 1.0f, starty - 1.0f});
+
+ frc971::MultiSpline::Builder multispline_builder =
+ builder->MakeBuilder<frc971::MultiSpline>();
+
+ multispline_builder.add_spline_count(1);
+ multispline_builder.add_constraints(constraints_offset);
+ multispline_builder.add_spline_x(spline_x_offset);
+ multispline_builder.add_spline_y(spline_y_offset);
+
+ return FixSpline(builder, multispline_builder.Finish(), alliance);
+}
+
+flatbuffers::Offset<frc971::MultiSpline> AutonomousSplines::TestSpline(
+ aos::Sender<frc971::control_loops::drivetrain::SplineGoal>::Builder
+ *builder,
+ aos::Alliance alliance) {
+ return FixSpline(
+ builder,
+ aos::CopyFlatBuffer<frc971::MultiSpline>(test_spline_, builder->fbb()),
+ alliance);
+}
+
+flatbuffers::Offset<frc971::MultiSpline> AutonomousSplines::StraightLine(
+ aos::Sender<frc971::control_loops::drivetrain::SplineGoal>::Builder
+ *builder,
+ aos::Alliance alliance) {
+ flatbuffers::Offset<flatbuffers::Vector<float>> spline_x_offset =
+ builder->fbb()->CreateVector<float>(
+ {-12.3, -11.9, -11.5, -11.1, -10.6, -10.0});
+ flatbuffers::Offset<flatbuffers::Vector<float>> spline_y_offset =
+ builder->fbb()->CreateVector<float>({1.25, 1.25, 1.25, 1.25, 1.25, 1.25});
+
+ frc971::MultiSpline::Builder multispline_builder =
+ builder->MakeBuilder<frc971::MultiSpline>();
+
+ multispline_builder.add_spline_count(1);
+ multispline_builder.add_spline_x(spline_x_offset);
+ multispline_builder.add_spline_y(spline_y_offset);
+
+ return FixSpline(builder, multispline_builder.Finish(), alliance);
+}
+
+} // namespace autonomous
+} // namespace y2023_bot3