refactor(scene): decouple player level/position from notifying systems

gamesv/src/logic/World.zig

@@ -15,10 +15,32 @@ pub const PlayerId = struct {
     uid: mem.LimitedString(max_length),
 };
 
+// TODO: this can be made a persistent Player component.
+pub const Location = struct {
+    const default_level = "map02_lv001";
+
+    level: i32,
+    position: [3]f32,
+
+    fn createDefault(assets: *const Assets) Location {
+        const level_config = assets.level_config_table.getPtr(default_level).?;
+
+        return .{
+            .level = level_config.idNum,
+            .position = .{
+                level_config.playerInitPos.x,
+                level_config.playerInitPos.y,
+                level_config.playerInitPos.z,
+            },
+        };
+    }
+};
+
 player_id: PlayerId,
 session: *Session, // TODO: should it be here this way? Do we need an abstraction?
 res: logic.Resource,
 player: logic.Player,
+location: Location,
 
 pub fn init(
     session: *Session,
@@ -34,6 +56,7 @@ pub fn init(
         .session = session,
         .player = player,
         .res = .init(assets, io),
+        .location = .createDefault(assets),
     };
 }
 
@@ -48,6 +71,7 @@ pub const GetComponentError = error{
 pub fn getComponentByType(world: *World, comptime T: type) GetComponentError!T {
     switch (T) {
         PlayerId => return world.player_id,
+        *Location, *const Location => return &world.location,
         *Session => return world.session,
         *logic.Resource.PingTimer => return &world.res.ping_timer,
         *const Assets => return world.res.assets,