Physics optional

core/entity.jai

@@ -78,18 +78,19 @@ Entity :: struct {
     renderable: Renderable;
     animator: Animator; @DontSerialize
 
-    // Physics
+    #if PHYSICS {
-    physx_handle: PhysX_Handle;
+        // Physics
-    velocity: Vector3;
+        physx_handle: PhysX_Handle;
+        velocity: Vector3;
+        // End physics
+    }
 
-    // End physics
+    #if NETWORKING {
-
+        remote_id: Entity_Id; @DontSerialize
-#if NETWORKING {
+        client_id: Client_Id; @DontSerialize
-    remote_id: Entity_Id; @DontSerialize
+        is_proxy: bool; @DontSerialize
-    client_id: Client_Id; @DontSerialize
+        last_replication_time: float; @DontSerialize
-    is_proxy: bool; @DontSerialize
+    }
-    last_replication_time: float; @DontSerialize
-}
 
     _locator: Bucket_Locator; @DontSerialize
     scene: *Scene; @DontSerialize

core/mesh_entity.jai

@@ -40,4 +40,4 @@ find_all_mesh_entities :: () {
 	path := "../assets/models/level_design/";
 
 	visit_files(path, true, *mesh_entity_files, mesh_entity_visitor);
-}
+}

core/scene.jai

@@ -22,7 +22,9 @@ Scene :: struct {
 
     mode: Engine_Mode;
 
-    physx_scene: PhysX_Scene;
+    #if PHYSICS {
+        physx_scene: PhysX_Scene;
+    }
 
     using custom_fields: _Custom_Scene_Fields;
 }

module.jai

@@ -1,4 +1,4 @@
-#module_parameters(WITH_EDITOR := true, WITH_NETWORKING := false, action_type : Type, entity_fields: Type, scene_fields: Type);
+#module_parameters(WITH_EDITOR := true, WITH_NETWORKING := false, WITH_PHYSICS := false, action_type : Type, entity_fields: Type, scene_fields: Type);
 
 // TODO: Add a fallback, if none we're specified
 _Custom_Entity_Fields :: entity_fields;
@@ -8,6 +8,7 @@ Action :: action_type;
 EDITOR :: WITH_EDITOR;
 DEBUG :: true;
 NETWORKING :: WITH_NETWORKING;
+PHYSICS :: WITH_PHYSICS;
 
 #if EDITOR {
     //#load "../editor/scene_editor.jai";
@@ -83,7 +84,9 @@ coven_init :: (window_title: string, window_width: u32, window_height: u32, full
     init_audio_system();
     init_console();
 
-    init_physx();
+    #if PHYSICS {
+        init_physx();
+    }
 
     #if EDITOR {
         init_editor();
@@ -158,11 +161,14 @@ coven_run :: (game_update_proc: (float), game_editor_update_proc: (float), game_
             if engine.current_scene != null && !engine.paused {
                 update_animators(clamped_dt);
 
-                pre_physx_sync(engine.current_scene);
+                #if PHYSICS {
-                tick_physx(*engine.current_scene.physx_scene, clamped_dt);
+                    pre_physx_sync(engine.current_scene);
-                post_physx_sync(engine.current_scene);
+                    tick_physx(*engine.current_scene.physx_scene, clamped_dt);
+                    post_physx_sync(engine.current_scene);
 
-                game_update_post_physics_proc(clamped_dt);
+                    // TODO: Move this out into engine.procs
+                    game_update_post_physics_proc(clamped_dt);
+                }
             }
         } else {
             game_editor_update_proc(clamped_dt);
@@ -214,6 +220,10 @@ switch_engine_mode :: (to_mode: Engine_Mode) {
     }
 }
 
+#if PHYSICS {
+    #load "physics/physx.jai";
+}
+
 #if NETWORKING {
     #load "networking/networking.jai";
 }
@@ -238,7 +248,6 @@ switch_engine_mode :: (to_mode: Engine_Mode) {
 #load "core/console.jai";
 #load "audio/audio.jai";
 #load "core/fps.jai";
-#load "physics/physx.jai";
 
 #scope_export
 

physics/physx.jai

@@ -1,4 +1,4 @@
-PHYSX_TEST :: false; PHYSX_DEFAULT_SHAPE_FLAGS :: cast(u8)(PhysX.PxShapeFlags.Visualization | PhysX.PxShapeFlags.SceneQueryShape | PhysX.PxShapeFlags.SimulationShape);
+PHYSX_DEFAULT_SHAPE_FLAGS :: cast(u8)(PhysX.PxShapeFlags.Visualization | PhysX.PxShapeFlags.SceneQueryShape | PhysX.PxShapeFlags.SimulationShape);
 
 PhysX_Handle :: #type, distinct u32;
 
@@ -116,6 +116,38 @@ post_physx_sync :: (game_scene: *Scene) {
     }
 }
 
+
+add_physx_sphere :: (entity: *Entity, radius: float) -> PhysX_Handle {
+    geo := PhysX.PxSphereGeometry_new(radius);
+
+    transform := PhysX.PxTransform_new(*entity.transform.position);
+    actor := PhysX.PxPhysics_createRigidDynamic(physics, *transform);
+    //PhysX.PxRigidDynamic_setRigidDynamicLockFlag(actor, xx PhysX.PxRigidDynamicLockFlags.LockAngularX, true);
+    //PhysX.PxRigidDynamic_setRigidDynamicLockFlag(actor, xx PhysX.PxRigidDynamicLockFlags.LockAngularY, true);
+    //PhysX.PxRigidDynamic_setRigidDynamicLockFlag(actor, xx PhysX.PxRigidDynamicLockFlags.LockAngularZ, true);
+
+    material := PhysX.PxPhysics_createMaterial(physics, 0.1, 0.1, 0.5);
+
+    //PhysX.PxMaterial_setRestitutionCombineMode(material,1); // Turn off restitution no matter the other material
+
+    shape := PhysX.PxPhysics_createShape(physics, *geo, material, false, PHYSX_DEFAULT_SHAPE_FLAGS);
+    PhysX.PxRigidActor_attachShape(actor, shape);
+
+    PhysX.PxRigidBodyExt_updateMassAndInertia(actor, 0.1, null, false);
+    PhysX.PxScene_addActor(entity.scene.physx_scene.scene, actor, null);
+
+    PhysX.PxShape_release(shape);
+    PhysX.PxBase_release(material);
+
+    physics_actor : PhysX_Actor;
+    physics_actor.type = .DYNAMIC;
+    physics_actor.sync_rotation_from_physx = true;
+    physics_actor.dynamic = actor;
+
+    entity.physx_handle = parray_add(*entity.scene.physx_scene.actors, physics_actor);
+    return entity.physx_handle;
+}
+
 add_physx_capsule :: (entity: *Entity, half_height: float, radius: float) -> PhysX_Handle {
     geo := PhysX.PxCapsuleGeometry_new(radius, half_height-radius);
 
@@ -145,8 +177,7 @@ add_physx_capsule :: (entity: *Entity, half_height: float, radius: float) -> Phy
     PhysX.PxScene_addActor(entity.scene.physx_scene.scene, actor, null);
 
     PhysX.PxShape_release(shape);
-    // @Incomplete
+    PhysX.PxBase_release(material);
-    //PhysX.PxMaterial_release(material);
 
     physics_actor : PhysX_Actor;
     physics_actor.type = .DYNAMIC;