From 199afff8201d30f1012876123d283df5875f2e86 Mon Sep 17 00:00:00 2001
From: samstalhandske <samstalhandske@hotmail.com>
Date: Thu, 18 Dec 2025 12:10:25 +0100
Subject: [PATCH] Added 'destroy_children' parameter to
 game_world_destroy_entity().

---
 src/game/shared/game_world.c           | 33 +++++++++++++++++---------
 src/game/shared/game_world.h           |  2 +-
 src/game/simulation/simulation_world.c |  2 +-
 src/todo.md                            | 18 ++++++++++++++
 4 files changed, 42 insertions(+), 13 deletions(-)
 create mode 100644 src/todo.md

diff --git a/src/game/shared/game_world.c b/src/game/shared/game_world.c
index 12ede47..2386c92 100644
--- a/src/game/shared/game_world.c
+++ b/src/game/shared/game_world.c
@@ -91,21 +91,32 @@ bool game_world_create_entity(Game_World *world, Entity_Type type, uint16_t x, u
     return true;
 }
 
-void game_world_destroy_entity(Game_World *world, Entity_ID entity_id) {
+void game_world_destroy_entity(Game_World *world, Entity_ID entity_id, bool destroy_children) {
     assert(world != NULL);
+    assert(entity_id != INVALID_ENTITY_ID);
 
-    Entity *entity = game_world_try_get_entity_by_id(
-        world,
-        entity_id
-    );
-    assert(entity != NULL);
-    memset(&entity, 0, sizeof(Entity));
+    Entity_ID id_to_remove = entity_id;
+    
+    while(id_to_remove != INVALID_ENTITY_ID) {
+        Entity *e = game_world_try_get_entity_by_id(
+            world,
+            id_to_remove
+        );
+        assert(e != NULL);
 
-    Grid_Cell *cell = grid_get_cell(&world->grid, entity->x, entity->y);
-    assert(cell != NULL);
-    assert(grid_try_remove_entity_from_cell(cell));
+        Grid_Cell *cell = grid_get_cell(&world->grid, e->x, e->y);
+        assert(cell != NULL);
+        assert(grid_try_remove_entity_from_cell(cell));
 
-    squeue_push(&world->entity_id_queue, (void *)&entity_id);
+        squeue_push(&world->entity_id_queue, (void *)&e->id);
+        
+        id_to_remove = e->child;
+        memset(e, 0, sizeof(Entity));
+
+        if(!destroy_children) {
+            break;
+        }
+    }
 }
 
 Entity *game_world_try_get_entity_by_id(Game_World *world, Entity_ID id) {
diff --git a/src/game/shared/game_world.h b/src/game/shared/game_world.h
index 888a8d5..25ed6ed 100644
--- a/src/game/shared/game_world.h
+++ b/src/game/shared/game_world.h
@@ -23,7 +23,7 @@ Game_World *game_world_create(uint32_t seed, uint16_t level_width, uint16_t leve
 void game_world_destroy(Game_World *world);
 
 bool game_world_create_entity(Game_World *world, Entity_Type type, uint16_t x, uint16_t y, Entity_ID *out_entity_id);
-void game_world_destroy_entity(Game_World *world, Entity_ID entity_id);
+void game_world_destroy_entity(Game_World *world, Entity_ID entity_id, bool destroy_children);
 
 // TODO: SS - "void game_world_spawn_player(Game_World *world, ..)"
 
diff --git a/src/game/simulation/simulation_world.c b/src/game/simulation/simulation_world.c
index fbc9364..dad6279 100644
--- a/src/game/simulation/simulation_world.c
+++ b/src/game/simulation/simulation_world.c
@@ -82,7 +82,7 @@ void simulation_world_tick(Simulation_World *simulation_world) {
                 assert(player->active);
                 player->active = false;
 
-                game_world_destroy_entity(simulation_world->game_world, player->entity_id);
+                game_world_destroy_entity(simulation_world->game_world, player->entity_id, true);
                 
                 break;
             }
diff --git a/src/todo.md b/src/todo.md
new file mode 100644
index 0000000..6e659c6
--- /dev/null
+++ b/src/todo.md
@@ -0,0 +1,18 @@
+# TODO
+- Add player-death.
+    - [ ] Went out of bounds.
+    - [ ] Hit other snake's head.
+    - [ ] Hit yours/other snake's body.
+- Spawn players at a random position.
+    - [ ] When initially joining.
+    - [ ] When dead and should respawn.
+- Spawn food every N tick(?)
+    - [ ] Spawn food at a random position every N tick.
+    - Do we want a "max food on the board" value?
+        - Why?
+        - This can easily be implemented later.
+        - If we have that much food on the board, don't spawn new food.
+        - Otherwise, spawn new food at a random position.
+- [ ] When a player disconnects, all children should recursively be destroyed too. Not just the head.
+- [ ] Sound effects + music.
+- [ ] Customize the session.
\ No newline at end of file