debugging

1 files changed, 9 insertions, 9 deletions

diff --git a/src/client/views/nodes/PhysicsBox/PhysicsSimulationWeight.tsx b/src/client/views/nodes/PhysicsBox/PhysicsSimulationWeight.tsx
index 89bdae0a0..06db9b4ce 100644
--- a/src/client/views/nodes/PhysicsBox/PhysicsSimulationWeight.tsx
+++ b/src/client/views/nodes/PhysicsBox/PhysicsSimulationWeight.tsx
@@ -90,12 +90,12 @@ export default class Weight extends React.Component<IWeightProps, IState> {
       kineticFriction: false,
       maxPosYConservation: 0,
       timer: 0,
-      updatedStartPosX: this.props.dataDoc['startPosX'],
-      updatedStartPosY: this.props.dataDoc['startPosY'],
+      updatedStartPosX: this.props.dataDoc['startPosX'] ?? 0,
+      updatedStartPosY: this.props.dataDoc['startPosY'] ?? 0,
       walls: [],
-      xPosition: this.props.dataDoc['startPosX'],
+      xPosition: this.props.dataDoc['startPosX'] ?? 0,
       xVelocity: this.props.startVelX ? this.props.startVelX: 0,
-      yPosition: this.props.dataDoc['startPosY'],
+      yPosition: this.props.dataDoc['startPosY'] ?? 0,
       yVelocity: this.props.startVelY ? this.props.startVelY: 0,
       xAccel: 0,
       yAccel: 0,
@@ -452,7 +452,7 @@ export default class Weight extends React.Component<IWeightProps, IState> {
     this.props.dataDoc['positionYDisplay'] = this.state.updatedStartPosY
     this.props.dataDoc['velocityXDisplay'] = this.props.startVelX ?? 0
     this.props.dataDoc['velocityYDisplay'] = this.props.startVelY ?? 0
-    this.setState({angleLabel: Math.round(this.props.dataDoc['pendulumAngle']* 100) / 100})
+    this.setState({angleLabel: Math.round(this.props.dataDoc['pendulumAngle'] ?? 0 * 100) / 100})
   };
 
   // Compute x acceleration from forces, F=ma
@@ -577,14 +577,14 @@ export default class Weight extends React.Component<IWeightProps, IState> {
   };
 
   // Check for collisions in x direction
-  const checkForCollisionsWithWall = () => {
+  checkForCollisionsWithWall = () => {
     let collision = false;
     const minX = this.state.xPosition;
     const maxX = this.state.xPosition + 2 * this.props.radius;
     if (this.state.xVelocity != 0) {
       this.state.walls.forEach((wall) => {
         if (wall.angleInDegrees == 90) {
-          const wallX = (wall.xPos / 100) * this.props.layoutDoc._width;
+          const wallX = (wall.xPos / 100) * this.props.layoutDoc._width ?? 500;
           if (wall.xPos < 0.35) {
             if (minX <= wallX) {
               this.setState({xPosition: wallX+0.01});
@@ -620,7 +620,7 @@ export default class Weight extends React.Component<IWeightProps, IState> {
     if (this.state.yVelocity > 0) {
       this.state.walls.forEach((wall) => {
         if (wall.angleInDegrees == 0 && wall.yPos > 0.4) {
-          const groundY = (wall.yPos / 100) * this.props.layoutDoc._height;
+          const groundY = (wall.yPos / 100) * this.props.layoutDoc._height ?? 500;
           if (maxY > groundY) {
             this.setState({yPosition: groundY- 2 * this.props.radius-0.01});
             if (this.props.elasticCollisions) {
@@ -666,7 +666,7 @@ export default class Weight extends React.Component<IWeightProps, IState> {
     if (this.state.yVelocity < 0) {
       this.state.walls.forEach((wall) => {
         if (wall.angleInDegrees == 0 && wall.yPos < 0.4) {
-          const groundY = (wall.yPos / 100) * this.props.layoutDoc._height;
+          const groundY = (wall.yPos / 100) * this.props.layoutDoc._height ?? 500;
           if (minY < groundY) {
             this.setState({yPosition: groundY + 0.01});
             if (this.props.elasticCollisions) {