From a511064987e927812c818e1f1b5f68d1adcfa350 Mon Sep 17 00:00:00 2001
From: bjorn <mail@bjornbyt.es>
Date: Thu, 22 Jun 2023 12:13:15 -0700
Subject: [PATCH] Collider:isDestroyed;

---
 src/api/l_physics_collider.c  | 8 ++++++++
 src/modules/physics/physics.c | 4 ++++
 src/modules/physics/physics.h | 1 +
 3 files changed, 13 insertions(+)

diff --git a/src/api/l_physics_collider.c b/src/api/l_physics_collider.c
index e6cbf808..35f882bc 100644
--- a/src/api/l_physics_collider.c
+++ b/src/api/l_physics_collider.c
@@ -10,6 +10,13 @@ static int l_lovrColliderDestroy(lua_State* L) {
   return 0;
 }
 
+static int l_lovrColliderIsDestroyed(lua_State* L) {
+  Collider* collider = luax_checktype(L, 1, Collider);
+  bool destroyed = lovrColliderIsDestroyed(collider);
+  lua_pushboolean(L, destroyed);
+  return 1;
+}
+
 static int l_lovrColliderGetWorld(lua_State* L) {
   Collider* collider = luax_checktype(L, 1, Collider);
   World* world = lovrColliderGetWorld(collider);
@@ -491,6 +498,7 @@ static int l_lovrColliderSetTag(lua_State* L) {
 
 const luaL_Reg lovrCollider[] = {
   { "destroy", l_lovrColliderDestroy },
+  { "isDestroyed", l_lovrColliderIsDestroyed },
   { "getWorld", l_lovrColliderGetWorld },
   { "addShape", l_lovrColliderAddShape },
   { "removeShape", l_lovrColliderRemoveShape },
diff --git a/src/modules/physics/physics.c b/src/modules/physics/physics.c
index 3d0ea89e..a27c9607 100644
--- a/src/modules/physics/physics.c
+++ b/src/modules/physics/physics.c
@@ -452,6 +452,10 @@ void lovrColliderDestroyData(Collider* collider) {
   lovrRelease(collider, lovrColliderDestroy);
 }
 
+bool lovrColliderIsDestroyed(Collider* collider) {
+  return !collider->body;
+}
+
 void lovrColliderInitInertia(Collider* collider, Shape* shape) {
   // compute inertia matrix for default density
   const float density = 1.0f;
diff --git a/src/modules/physics/physics.h b/src/modules/physics/physics.h
index 9349d169..a98033a4 100644
--- a/src/modules/physics/physics.h
+++ b/src/modules/physics/physics.h
@@ -73,6 +73,7 @@ int lovrWorldIsCollisionEnabledBetween(World* world, const char* tag1, const cha
 Collider* lovrColliderCreate(World* world, float x, float y, float z);
 void lovrColliderDestroy(void* ref);
 void lovrColliderDestroyData(Collider* collider);
+bool lovrColliderIsDestroyed(Collider* collider);
 void lovrColliderInitInertia(Collider* collider, Shape* shape);
 World* lovrColliderGetWorld(Collider* collider);
 Collider* lovrColliderGetNext(Collider* collider);