Reset progression to 0 when loading dance. (Beats already reset to 0.)

www/js/interpreter.ts

@@ -260,10 +260,16 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
     withPos: SemanticPosition & { setOffset: number, lineOffset: number },
     withId: common.ExtendedDancerIdentity,
     around: CircleSideOrCenter,
+  }) => LowLevelMove[]), meanwhileFunc?: ((arg: {
+    id: DancerIdentity,
+    startPos: SemanticPosition,
   }) => LowLevelMove[])): Map<DancerIdentity, LowLevelMove[]> {
     return handleMove(({ id, startPos }) => {
       const withId = findPairOpposite(who, id);
       if (!withId) {
+        if (meanwhileFunc) {
+          return meanwhileFunc({ id, startPos });
+        } else {
           return combine([{
             beats: move.beats,
             startPosition: { ...startPos, hands: undefined },
@@ -271,6 +277,7 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
             movementPattern: { kind: SemanticAnimationKind.StandStill },
           }]);
         }
+      }
       const withPos = getPosFor(withId);
       const setDifference = withPos.setOffset - (startPos.setOffset ?? 0);
       let startPosAdjusted = startPos;
@@ -450,20 +457,27 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
       });
 
     case "mad robin":
-      return handleCircleMove(({ startPos }) => {
+      if (move.parameters.circling !== 360) {
-        // TODO Read who of mad robin to decide direction?
+        throw new Error("mad robin circling not exactly once is unsupported.");
-        const startAndEndPos = {
+      }
-          ...startPos,
+
-          facing: startPos.which.isLeft() ? Facing.Right : Facing.Left,
+      return handleCircleMove(({ id, startPos }) => {
-          hands: undefined,
+        // Read who of mad robin to decide direction.
-        };
+        const madRobinClockwise: boolean = (findPairOpposite(move.parameters.who, id) !== null) === startPos.which.isOnLeftLookingAcross();
+
+        const startAndEndPos: SemanticPosition = {
+          kind: PositionKind.Circle,
+          which: startPos.which,
+          facing: startPos.which.facingAcross(),
+        }
+
         return combine([{
           beats: move.beats,
           startPosition: startAndEndPos,
           endPosition: startAndEndPos,
           movementPattern: {
             kind: SemanticAnimationKind.DoSiDo,
-            amount: move.parameters.circling,
+            amount: madRobinClockwise ? move.parameters.circling : -move.parameters.circling,
             around: startPos.which.leftRightSide(),
           },
         }]);
@@ -641,6 +655,7 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
                   minAmount: 360,
                   around,
                   byHand: undefined,
+                  close: true,
                 },
               }),
               swing,
@@ -684,14 +699,17 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
       });
 
     case "allemande":
+    case "allemande orbit":
     case "gyre":
+      const allemandeCircling = move.move === "allemande orbit" ? move.parameters.circling1 : move.parameters.circling;
+      const byHandOrShoulder = (move.move === "gyre" ? move.parameters.shoulder : move.parameters.hand) ? Hand.Right : Hand.Left;
+
       return handlePairedMove(move.parameters.who, ({ startPos, around, withId }) => {
         // TODO Not sure if this is right.
-        const byHandOrShoulder = (move.move === "allemande" ? move.parameters.hand : move.parameters.shoulder) ? Hand.Right : Hand.Left;
+        const swap = allemandeCircling % 360 === 180;
-        const swap = move.parameters.circling % 360 === 180;
+        if (!swap && allemandeCircling % 360 !== 0) {
-        if (!swap && move.parameters.circling % 360 !== 0) {
           // TODO Support allemande that's not a swap or no-op.
-          throw "Unsupported allemande circle amount: " + move.parameters.circling;
+          throw "Unsupported allemande circle amount: " + allemandeCircling;
         }
         let endPosition: SemanticPosition = startPos;
         if (swap) {
@@ -706,12 +724,62 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
             endPosition,
             movementPattern: {
               kind: SemanticAnimationKind.RotateAround,
-              minAmount: byHandOrShoulder === Hand.Right ? move.parameters.circling : -move.parameters.circling,
+              minAmount: byHandOrShoulder === Hand.Right ? allemandeCircling : -allemandeCircling,
               around,
-              byHand: move.move === "allemande" ? byHandOrShoulder : undefined,
+              byHand: move.move === "allemande" || move.move === "allemande orbit" ? byHandOrShoulder : undefined,
+              close: true,
             },
           },
         ], startPos);
+      }, move.move !== "allemande orbit" ? undefined : ({ id, startPos}) => {
+        const orbitAmount = move.parameters.circling2;
+        const swap = orbitAmount % 360 === 180;
+        if (!swap && orbitAmount % 360 !== 0) {
+          // TODO Support allemande that's not a swap or no-op.
+          throw "Unsupported allemande orbit amount: " + orbitAmount;
+        }
+
+        const startingPos: SemanticPosition = {
+          ...startPos,
+          hands: undefined,
+          balance: undefined,
+          dancerDistance: undefined,
+        }
+        let endPosition: SemanticPosition;
+        if (swap) {
+          if (startingPos.kind === PositionKind.Circle) {
+            endPosition =
+            {
+              ...startingPos,
+              which: startingPos.which.swapDiagonal(),
+              facing: startingPos.which.isLeft() ? Facing.Left : Facing.Right,
+            }
+          } else {
+            endPosition =
+            {
+              ...startingPos,
+              which: startingPos.which.swapSides(),
+              facing: startingPos.which.isLeft() ? Facing.Left : Facing.Right,
+            }
+          }
+        } else {
+          endPosition = startingPos;
+        }
+
+        return combine([
+          {
+            beats: move.beats,
+            endPosition,
+            movementPattern: {
+              kind: SemanticAnimationKind.RotateAround,
+              // Orbit is opposite direction of allemande.
+              minAmount: byHandOrShoulder === Hand.Right ? -orbitAmount : +orbitAmount,
+              around: "Center",
+              byHand: undefined,
+              close: false,
+            },
+          },
+        ], startingPos);
       });
 
     case "revolving door":
@@ -738,6 +806,7 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
                 minAmount: byHand === Hand.Right ? 180 : -180,
                 around: "Center",
                 byHand,
+                close: false,
               },
             },
             prevEnd => ({
@@ -756,6 +825,7 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
               minAmount: byHand === Hand.Right ? 180 : -180,
               around: "Center",
               byHand,
+              close: true,
             },
           },
         ], startPos);
@@ -1385,12 +1455,31 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
 
     case "pass through":
       if (move.parameters.dir !== "along") {
-        throw new Error("Unsupport pass through direction: " + move.parameters.dir);
+        throw new Error("Unsupported pass through direction: " + move.parameters.dir);
       }
+      const passShoulder = move.parameters.shoulder ? Hand.Right : Hand.Left;
       return handleMove(({ startPos }) => {
-        if (startPos.kind !== PositionKind.ShortLines) {
+        if (startPos.kind === PositionKind.Circle) {
-          throw new Error("pass through from circle is unsupported");
+          const facing = startPos.which.facingUpOrDown();
-        }
+          const endPos: SemanticPosition = {
+            kind: PositionKind.Circle,
+            which: startPos.which,
+            facing,
+            setOffset: (startPos.setOffset ?? 0) + (facing === Facing.Up ? -0.5 : +0.5),
+            lineOffset: startPos.lineOffset,
+          };
+
+          return combine([{
+            beats: move.beats,
+            endPosition: endPos,
+            movementPattern: {
+              kind: SemanticAnimationKind.PassBy,
+              around: startPos.which.leftRightSide(),
+              side: passShoulder,
+              withHands: false,
+            },
+          }], startPos);
+        } else {
           // TODO This assumes short *wavy* lines.
 
           const endPos: SemanticPosition = {
@@ -1405,6 +1494,7 @@ function moveAsLowLevelMoves({ move, nextMove, startingPos, numProgessions }: {
             endPosition: endPos,
             movementPattern: { kind: SemanticAnimationKind.Linear },
           }], startPos);
+        }
       });
 
     case "hey":

www/js/interpreterCommon.ts

@@ -139,6 +139,10 @@ export class CirclePosition {
     return this.isLeft() ? Facing.Left : Facing.Right;
   }
 
+  public facingUpOrDown() : Facing.Up | Facing.Down {
+    return this.isTop() ? Facing.Down : Facing.Up;
+  }
+
   public toString() : string {
     return this.enumValue.toString();
   }

www/js/lowLevelMove.ts

@@ -72,6 +72,9 @@ export type SemanticAnimation = {
   around: CircleSideOrCenter,
 
   byHand: Hand | undefined,
+
+  // If true, move in close while rotating.
+  close: boolean,
 } | {
   kind: SemanticAnimationKind.Swing,
 
@@ -545,10 +548,11 @@ export function animateLowLevelMove(move: LowLevelMove): animation.AnimationSegm
                 width: setWidth / 5,
                 height: setHeight / 5,
               },
-              facing: animation.RotationAnimationFacing.Center, closer: {
+              facing: animation.RotationAnimationFacing.Center,
+              closer: move.movementPattern.close ? {
                 transitionBeats: 1,
                 minDistance: setWidth,
-              },
+              } : undefined,
               hands
             }),
             flags: {

www/js/main.ts

@@ -520,6 +520,7 @@ function loadDance() {
     cancelAnimationFrame(cancelAnim);
     playButton.innerText = 'Play';
   }
+  progressionSelector.value = '0';
   beatSlider.value = '0';
   beatSlider.max = r.animation.numBeats.toString();
   beatDisplay.innerText = '0.0';