Expose body's collisionResponse property

[abbazabacto]

Each body has a collisionResponse property which can be set after instantiation.

Whether to produce contact forces when in contact with other bodies. Note that contacts will be generated, but they will be disabled. http://schteppe.github.io/cannon.js/docs/classes/Body.html#property_collisionResponse

Setting the collisionResponse to 0 will keep the collision detection, without applying contact forces on collision.

[abbazabacto]

Was not able to push a branch on this repo, here my local git diff if that will help you in any way adding this feature request (lines with + are added).

diff --git a/src/hooks.ts b/src/hooks.ts
index aa15c9c..5662c66 100644
--- a/src/hooks.ts
+++ b/src/hooks.ts
@@ -15,6 +15,7 @@ export type AtomicProps = {
   sleepTimeLimit?: number
   collisionFilterGroup?: number
   collisionFilterMask?: number
+  collisionResponse?: number
   fixedRotation?: boolean
 }

@@ -269,6 +270,7 @@ function useBody(
         collisionFilterMask: makeAtomic('collisionFilterMask', index),
+        collisionResponse: makeAtomic('collisionResponse', index),
         fixedRotation: makeAtomic('fixedRotation', index),
         // Apply functions
         applyForce(force: number[], worldPoint: number[]) {
diff --git a/src/worker.js b/src/worker.js
index 68fa155..d44c45e 100644
--- a/src/worker.js
+++ b/src/worker.js
@@ -144,6 +144,7 @@ self.onmessage = (e) => {
           material,
           shapes,
           onCollide,
+          collisionResponse,
           ...extra
         } = props[i]

@@ -155,6 +156,10 @@ self.onmessage = (e) => {
         })
         body.uuid = uuid[i]

+        if (collisionResponse !== undefined) {
+          body.collisionResponse = collisionResponse
+        }
+
         if (type === 'Compound') {
           shapes.forEach(({ type, args, position, rotation, material, ...extra }) => {
             const shapeBody = body.addShape(
@@ -262,6 +267,9 @@ self.onmessage = (e) => {
     case 'setCollisionFilterMask':
       bodies[uuid].collisionFilterMask = props
       break
+    case 'setCollisionResponse':
+      bodies[uuid].collisionResponse = props
+      break
     case 'setFixedRotation':
       bodies[uuid].fixedRotation = props
       break

[nwpointer]

would also love this feature :)