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Add Bridge & Chain span tools; fix rotated-part dimension persistence #22

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Merged
SethMorrowSoftware merged 2 commits into from
Jun 5, 2026
+203 −28
Merged

Add Bridge & Chain span tools; fix rotated-part dimension persistence #22

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a5c8fac
Add Bridge & Chain span tools; fix rotated-part dimension persistence
claude Jun 5, 2026
a26d7e8
Kit: add symmetric motion/state wrappers + nil-safe material setters
claude Jun 5, 2026
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8 changes: 8 additions & 0 deletions docs/kit-reference.md
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,8 @@ dynamic/static where a handler takes an optional `dyn` flag.
| `b2kSetGravityScale ctrl, s` | Per-body gravity multiplier. |
| `b2kSetDamping ctrl, lin [,ang]` | Linear (and optional angular) damping. |
| `b2kWake ctrl` | Wake a sleeping body. |
| `b2kSleep ctrl` | Send a body to sleep until something wakes it. |
| `b2kSetSleepThreshold ctrl, pxPerSec` | Speed below which a body may fall asleep. |
| `b2kSetStatic ctrl` / `b2kSetDynamic ctrl` / `b2kSetKinematic ctrl` | Change body type at runtime (freeze/unfreeze, moving platforms). |
| `b2kSetType ctrl, "static"\|"kinematic"\|"dynamic"` | Set body type by name. |
| `b2kDisable ctrl` / `b2kEnable ctrl` | Take a body out of / put it back into the simulation. |
Expand All @@ -133,6 +135,8 @@ dynamic/static where a handler takes an optional `dyn` flag.
|---------|---------|
| `b2kPush ctrl, dvx, dvy` | Add a one-shot impulse (change in velocity, px/s). |
| `b2kForce ctrl, fx, fy` | Apply a continuous force (call each frame for thrust/wind). |
| `b2kImpulse ctrl, ix, iy` | One-shot impulse, mass-aware (heavier bodies move less). |
| `b2kTorque ctrl, torque` | Continuous turning force (call each frame); +/- sets direction. |
| `b2kSetVelocity ctrl, vx, vy` | Set linear velocity (px/s). |
| `b2kSpin ctrl, degPerSec` | Set angular velocity. |
| `b2kSpinBy ctrl, degPerSec` | Add to the current angular velocity. |
Expand All @@ -153,6 +157,9 @@ dynamic/static where a handler takes an optional `dyn` flag.
| `b2kBodyCount()` | How many bodies the Kit is tracking. |
| `b2kAwakeCount()` | How many dynamic bodies are currently awake (active). |
| `b2kIsAwake(ctrl)` | Whether the body is awake. |
| `b2kSpinRate(ctrl)` | Rotation speed in degrees/sec (getter for `b2kSpin`). |
| `b2kIsBullet(ctrl)` | Whether continuous (CCD) collision is on. |
| `b2kIsEnabled(ctrl)` | Whether the body is in the simulation. |
| `b2kControlAt(x, y)` | The control whose body covers a screen point. |
| `b2kRayHit(x1, y1, x2, y2)` | True if a ray hits; then read the result functions below. |
| `b2kRayHitX()` / `b2kRayHitY()` | Hit point in screen pixels. |
Expand Down Expand Up @@ -187,6 +194,7 @@ helpers or to `b2kRemoveJoint`.
| `b2kWheelSpring joint, hertz [,damping]` | Tune wheel suspension. |
| `b2kRopeRange joint, minPx, maxPx` | Set a distance joint's min/max length. |
| `b2kRopeLength(joint)` → pixels | Current distance-joint length. |
| `b2kRopeSetLength joint, px` | Set a distance joint's exact rest length. |
| `b2kSpring joint, hertz [,damping]` | Make a rope (distance) joint springy. |
| `b2kWeldSpring joint, hertz [,damping]` | Make a weld springy (0 hertz = rigid). |
| `b2kMotorOff joint` | Turn a hinge motor off (free swing). |
Expand Down
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