Scene loading fixes

core/console_commands.jai

@@ -29,8 +29,9 @@ cmd_new_scene :: (arguments: [] string) {
         unload_scene(engine.current_scene);
     }
 
-    engine.current_scene = create_scene(arguments[0]);
+    make_directory_if_it_does_not_exist(scene_path);
 
+    engine.current_scene = create_scene(arguments[0]);
 
     switch_to_scene(arguments[0]);
     console_success("Scene '%' loaded\n", arguments[0]);

core/particles.jai

@@ -33,6 +33,8 @@ Particle_System :: struct {
     _locator: Bucket_Locator;
 
     on_particle_update: (*Particle_System, float);
+
+    scene: *Scene;
 }
 
 create_particle_system :: (pipeline: Pipeline_State_Handle, update_func: (*Particle_System, float), owning_entity: *Entity = null, scene: *Scene = null) -> *Particle_System {
@@ -43,9 +45,15 @@ create_particle_system :: (pipeline: Pipeline_State_Handle, update_func: (*Parti
     particle_system.pipeline = pipeline;
     particle_system.on_particle_update = update_func;
     particle_system.owning_entity = owning_entity;
+    particle_system.scene = scene;
     return particle_system;
 }
 
+destroy_particle_system :: (system: *Particle_System) {
+    destroy_buffer(engine.renderer, system.vertex_buffer);
+    bucket_array_remove(*system.scene.particle_systems, system._locator);
+}
+
 spawn_particle :: (system: *Particle_System, position: Vector3, velocity: Vector3 = .{0,0,0}, size: float = 1.0, lifetime: float = 1.0, color: Vector4 = .{1,1,1,1}) {
     particle: Particle;
     particle.position = position;

core/scene.jai

@@ -10,7 +10,7 @@ Scene :: struct {
 
     entities    : [..] *Entity;
 
-    particle_systems : Bucket_Array(Particle_System, 64);
+    particle_systems : Bucket_Array(Particle_System, 128);
 
     by_type : Entity_Storage;
 
@@ -20,6 +20,7 @@ Scene :: struct {
     camera : Camera;
     directional_light : Directional_Light;
 
+    mode: Engine_Mode;
 }
 
 Entity_File_Info :: struct {
@@ -43,6 +44,7 @@ visitor :: (info : *File_Visit_Info, files: *[..] Entity_File_Info) {
 
 load_scene :: (name: string) -> *Scene {
     scene := create_scene(name, 1024);
+    scene.mode = engine.mode;
 
     if engine.procs.on_scene_loaded != null {
         engine.procs.on_pre_scene_loaded(scene, engine.mode);
@@ -125,6 +127,10 @@ save_scene :: (scene: *Scene, path: string) {
 }
 
 unload_scene :: (scene: *Scene) {
+    if engine.procs.on_pre_scene_unloaded != null {
+        engine.procs.on_pre_scene_unloaded(scene);
+    }
+
     for e: scene.entities {
         destroy_entity(e);
     }
@@ -165,6 +171,7 @@ create_scene :: (name: string = "", max_entities: s64 = 256) -> *Scene {
     }
 
     scene.name = copy_string(new_name);
+    scene.mode = engine.mode;
 
     // Setup allocator
     scene.pool = .{};

module.jai

@@ -38,6 +38,7 @@ Engine_Core :: struct {
     procs: struct {
        on_scene_loaded: (*Scene, Engine_Mode);
        on_pre_scene_loaded: (*Scene, Engine_Mode);
+       on_pre_scene_unloaded: (*Scene);
        on_trigger_enter: (*Entity, *Entity);
        on_trigger_exit: (*Entity, *Entity);
     }

ui/ui.jai

@@ -546,7 +546,7 @@ ui_figure_out_sizes :: () {
     // Downwards-dependent
     for *box : ui_state.boxes {
         if box.semantic_size[0].size_kind == .CHILDREN_SUM {
-            assert(box.num_children != 0);
+            //assert(box.num_children != 0);
 
             size : float = 0.0;
             child := box.first_child;
@@ -564,7 +564,7 @@ ui_figure_out_sizes :: () {
             box.size.x = size + box.padding_left + box.padding_right;
         }
         if box.semantic_size[1].size_kind == .CHILDREN_SUM {
-            assert(box.num_children != 0);
+            //assert(box.num_children != 0);
 
             size : float = 0.0;
             child := box.first_child;