From 8b3c091ba785d5cba049015c213eb49bb6378762 Mon Sep 17 00:00:00 2001
From: Sébastien Crozet <sebcrozet@dimforge.com>
Date: Tue, 31 May 2022 11:23:46 +0200
Subject: Start experimenting with collider/rigid-body disabling.

---
 src/geometry/collider.rs            | 21 +++++++++++++++++++++
 src/geometry/collider_components.rs |  9 +++++++--
 2 files changed, 28 insertions(+), 2 deletions(-)

(limited to 'src/geometry')

diff --git a/src/geometry/collider.rs b/src/geometry/collider.rs
index 8d9b005..d12f7b2 100644
--- a/src/geometry/collider.rs
+++ b/src/geometry/collider.rs
@@ -46,6 +46,17 @@ impl Collider {
         self.coll_type.is_sensor()
     }
 
+    /// Is this collider enabled?
+    pub fn is_enabled(&self) -> bool {
+        self.flags.enabled
+    }
+
+    /// Sets whether or not this collider is enabled.
+    pub fn set_enabled(&mut self, enabled: bool) {
+        self.changes.insert(ColliderChanges::ENABLED);
+        self.flags.enabled = enabled;
+    }
+
     /// The physics hooks enabled for this collider.
     pub fn active_hooks(&self) -> ActiveHooks {
         self.flags.active_hooks
@@ -309,6 +320,8 @@ pub struct ColliderBuilder {
     pub position: Isometry<Real>,
     /// Is this collider a sensor?
     pub is_sensor: bool,
+    /// Is this collider enabled after its creation?
+    pub enabled: bool,
     /// Contact pairs enabled for this collider.
     pub active_collision_types: ActiveCollisionTypes,
     /// Physics hooks enabled for this collider.
@@ -334,6 +347,7 @@ impl ColliderBuilder {
             restitution: 0.0,
             position: Isometry::identity(),
             is_sensor: false,
+            enabled: true,
             user_data: 0,
             collision_groups: InteractionGroups::all(),
             solver_groups: InteractionGroups::all(),
@@ -594,6 +608,12 @@ impl ColliderBuilder {
         self
     }
 
+    /// Is this collider enabled after its creation?
+    pub fn enabled(mut self, is_enabled: bool) -> Self {
+        self.enabled = is_enabled;
+        self
+    }
+
     /// Sets the collision groups used by this collider.
     ///
     /// Two colliders will interact iff. their collision groups are compatible.
@@ -775,6 +795,7 @@ impl ColliderBuilder {
             active_collision_types: self.active_collision_types,
             active_hooks: self.active_hooks,
             active_events: self.active_events,
+            enabled: self.enabled,
         };
         let changes = ColliderChanges::all();
         let pos = ColliderPosition(self.position);
diff --git a/src/geometry/collider_components.rs b/src/geometry/collider_components.rs
index 22f75e7..ab746a4 100644
--- a/src/geometry/collider_components.rs
+++ b/src/geometry/collider_components.rs
@@ -57,11 +57,13 @@ bitflags::bitflags! {
         const SHAPE    = 1 << 4; // => BF & NF update. NF pair workspace invalidation.
         /// Flag indicating that the `ColliderType` component of the collider has been modified.
         const TYPE     = 1 << 5; // => NF update. NF pair invalidation.
+        /// Flag indicating that this `Collider` or its parent `RigidBody` enabled status was changed.
+        const ENABLED  = 1 << 6; // => NF update.
         /// Flag indicating that the dominance groups of the parent of this collider have been modified.
         ///
         /// This flags is automatically set by the `PhysicsPipeline` when the `RigidBodyChanges::DOMINANCE`
         /// or `RigidBodyChanges::TYPE` of the parent rigid-body of this collider is detected.
-        const PARENT_EFFECTIVE_DOMINANCE = 1 << 6; // NF update.
+        const PARENT_EFFECTIVE_DOMINANCE = 1 << 7; // NF update.
     }
 }
 
@@ -309,7 +311,7 @@ impl ActiveCollisionTypes {
         //       First, we associate the following bit masks:
         //           - DYNAMIC = 0001
         //           - FIXED = 0010
-        //           - KINEMATIC = 1100
+        //           - KINEMATIC = 0011
         //       These are equal to the bits indexed by `RigidBodyType as u32`.
         //       The bit masks defined by ActiveCollisionTypes are defined is such a way
         //       that the first part of the variant name (e.g. DYNAMIC_*) indicates which
@@ -368,6 +370,8 @@ pub struct ColliderFlags {
     pub active_hooks: ActiveHooks,
     /// The events enabled for this collider.
     pub active_events: ActiveEvents,
+    /// Whether the collider takes part into the simulation or should be igonred.
+    pub enabled: bool,
 }
 
 impl Default for ColliderFlags {
@@ -378,6 +382,7 @@ impl Default for ColliderFlags {
             solver_groups: InteractionGroups::all(),
             active_hooks: ActiveHooks::empty(),
             active_events: ActiveEvents::empty(),
+            enabled: true,
         }
     }
 }
-- 
cgit