first commit

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

overview/networking_implementation_plan.md

@@ -0,0 +1,264 @@
+# Networking Implementation Plan
+
+Step-by-step breakdown for taking Spacewar from single-player-only to working
+multiplayer. `tech.md` describes the target architecture; this doc is the
+ordered checklist for getting there from the current codebase.
+
+**Current state (as of this doc):** zero networking code exists anywhere in
+the project. The server browser's JOIN button and the main menu's CASUAL
+button just set local `GameConfig` fields and load `world.tscn` — no
+connection is ever made. Everything downstream assumes exactly one player.
+
+**Guiding principle:** get two peers moving/shooting/dying correctly over
+ENet *first*, with ugly/no prediction. Polish feel (prediction,
+reconciliation, lag comp) only after the authoritative loop is proven
+correct. Don't build matchmaking/Steam/galaxy-war until basic peer-to-peer
+combat works.
+
+---
+
+## Phase 0 — Decisions to make before writing code
+
+- [ ] Pick topology for early dev: dedicated headless server instance vs.
+      one client acting as host. (Recommend: always run a dedicated server,
+      even locally — avoids a host-migration refactor later, and matches
+      the authoritative-server model in `tech.md`.)
+- [ ] Decide the connection target for now: hardcoded `127.0.0.1` / LAN IP
+      is fine until Phase 8. Don't build matchmaking yet.
+- [ ] Confirm max casual match size (25v25 per `overview.md`) — this affects
+      how much you can get away with naive replication before needing
+      interest management / area-of-interest culling.
+
+---
+
+## Phase 1 — ENet bootstrap & connect flow
+
+**Goal:** two Godot instances can connect over ENet and see each other join/leave.
+
+- [ ] Add a `NetworkManager` autoload (new, alongside `GameConfig` in
+      `autoload/`) that owns the `ENetMultiplayerPeer`, exposes
+      `host_server(port)` / `join_server(ip, port)`, and connects to
+      `multiplayer.peer_connected` / `peer_disconnected` / `connected_to_server`
+      / `connection_failed`.
+- [ ] Wire `menu/server_browser.gd`'s `_on_join_pressed` (currently just sets
+      `GameConfig` fields and changes scene) to actually call
+      `NetworkManager.join_server(...)` and only transition to `world.tscn`
+      on `connected_to_server`.
+- [ ] Add a minimal headless server launch path (`--server` CLI flag or a
+      separate export target) that calls `host_server()` and loads
+      `world.tscn` without a local player.
+- [ ] Smoke test: launch one headless server + two client instances, confirm
+      `peer_connected` fires on the server for both and each client sees the
+      other's peer_id.
+
+---
+
+## Phase 2 — Per-peer player state
+
+**Goal:** replace the single-player assumption in `GameConfig` with a real
+per-peer registry.
+
+- [ ] Split `autoload/game_config.gd`: keep shared/match-wide constants
+      (thrust, speed, fire rate, `world_bounds`, etc.) as-is, but move the
+      per-player fields (`player_name`, `player_race`, `player_ship_path`,
+      `player_ship_scale`, `player_ship_speed_factor`) out of flat globals
+      into a `Dictionary[int, PlayerInfo]` keyed by `peer_id`, on
+      `NetworkManager` or a new `PlayerRegistry` autoload.
+- [ ] On connect, client sends its chosen name/race/ship to the server via
+      RPC (`@rpc("any_peer", "call_local", "reliable") submit_loadout(...)`);
+      server stores it in the registry and relays to all peers so everyone
+      knows everyone's loadout.
+- [ ] Update `menu/team_select.gd` (currently sets `GameConfig` fields
+      directly and emits local `team_selected`) to submit the choice via
+      this RPC path instead.
+- [ ] Update anywhere still reading `GameConfig.player_name` /
+      `player_race` / `player_ship_path` directly to read from the local
+      peer's entry in the registry instead.
+
+---
+
+## Phase 3 — Spawning multiple ships
+
+**Goal:** N ships exist in `world.tscn`, one per connected peer, each owned
+by the right client.
+
+- [ ] `world.tscn` currently has a single hardcoded ship node named "Player"
+      as a direct child. Remove it; replace with an empty `Node2D`
+      container (e.g. `Ships`) that ships get added to at runtime.
+- [ ] Add a `MultiplayerSpawner` in `world.tscn` pointed at the `Ships`
+      container, with `ship.tscn` in its spawnable scene list.
+- [ ] Server-side: on `peer_connected` (or once loadout is submitted),
+      instantiate `ship.tscn` for that peer under `Ships`, set
+      `set_multiplayer_authority(peer_id)` on the ship root, name the node
+      by peer_id (e.g. `str(peer_id)`) so it replicates deterministically.
+- [ ] On `peer_disconnected`, despawn that peer's ship and remove it from
+      the registry.
+- [ ] **Camera2D fix:** `ship.tscn` currently bakes a `Camera2D` into the
+      scene itself, which breaks with multiple instances. Move the camera
+      out of `ship.tscn`; in `ship_movement.gd`'s `_ready()`, only create/
+      activate a `Camera2D` if `is_multiplayer_authority()` is true (i.e.
+      this is the local player's own ship).
+- [ ] **HUD fix:** `ship_movement.gd` currently pushes health to
+      `/root/World/HUD/HealthLabel` via a hardcoded absolute path. Gate this
+      the same way — only the locally-authoritative ship should update the
+      local HUD.
+
+---
+
+## Phase 4 — Split input from simulation
+
+**Goal:** stop reading `Input.is_action_pressed()` inside the shared
+simulation code; every ship's movement should be driven by whoever is
+authoritative for it (server), fed by input coming from the owning client.
+
+- [ ] In `ship_movement.gd`, extract the current `_physics_process` block
+      (lines ~45–66, direct `Input.is_action_pressed` calls) into a small
+      input struct/dictionary (`{thrust: bool, rotate: float, firing: bool}`)
+      gathered only when `is_multiplayer_authority()` on the *client* side.
+- [ ] Add `@rpc("any_peer", "call_remote", "unreliable") send_input(input)`
+      on the ship: client calls it every physics tick with its local input;
+      server receives it, validates the sender is this ship's owning peer,
+      and stores it as "current input" for that ship.
+- [ ] Server's `_physics_process` runs the actual movement/`move_and_slide`
+      simulation using the last-received input for every ship it owns
+      authority over (the server owns authority over all ships in the
+      dedicated-server model).
+- [ ] Add a `MultiplayerSynchronizer` per ship replicating `position`,
+      `rotation`, `velocity` from server → clients.
+- [ ] Get this working *without* prediction first: local ship will feel
+      laggy (input → server → back). That's expected at this stage — fixed
+      in Phase 7.
+
+---
+
+## Phase 5 — Shooting / bullets over the network
+
+**Goal:** bullets are server-simulated and replicated, not spawned locally
+by each client.
+
+- [ ] `ship_movement.gd`'s fire logic (~line 72) currently does
+      `get_parent().add_child(bullet)` directly on whichever peer runs it.
+      Change so firing is just another bit in the input struct from Phase 4;
+      server decides when a shot is actually fired (respecting fire-rate
+      cooldown server-side, not trusting client timing).
+- [ ] Server instantiates `bullet.tscn` via a `MultiplayerSpawner` (or
+      manual spawn + RPC) under a shared `Bullets` container in
+      `world.tscn`.
+- [ ] `bullet.gd` currently self-simulates movement in `_process` and
+      resolves damage locally via `body_entered`. Keep bullet *movement*
+      client-side-predicted for visual smoothness if desired, but damage
+      resolution (`take_damage()` call, ~lines 15–20) must only happen on
+      the server's copy of the bullet.
+- [ ] Despawn bullets server-side when out of `world_bounds`; replicate
+      despawn to clients.
+
+---
+
+## Phase 6 — Server-authoritative health / death / respawn
+
+**Goal:** no client can kill, heal, or respawn anything except by asking the
+server.
+
+- [ ] Move `take_damage` / `_die` / `_respawn` (`ship_movement.gd` lines
+      ~104–135) so the actual state mutation only runs where
+      `multiplayer.is_server()` is true. Clients only ever display the
+      replicated result.
+- [ ] Add an authority check at the top of `take_damage`: reject calls that
+      didn't originate from the server (bullets are already server-spawned
+      after Phase 5, so this mostly falls out naturally — but double check
+      nothing client-side can still call it directly).
+- [ ] Replicate `health`, `is_dead` (or similar) via the ship's
+      `MultiplayerSynchronizer` from Phase 4 so HUD and visuals update on
+      all clients.
+- [ ] Respawn: server decides timing/position and re-broadcasts spawn
+      state; don't let respawn timers run independently on each client.
+
+---
+
+## Phase 7 — Client-side prediction & reconciliation
+
+**Goal:** local ship feels responsive despite server round-trip; remote
+ships move smoothly despite update-rate gaps.
+
+- [ ] Local client: predict own ship's movement immediately on input
+      (re-run the same movement function locally that the server runs),
+      rather than waiting for the server echo.
+- [ ] Server periodically sends authoritative position/velocity/tick back to
+      the owning client; client reconciles by snapping/blending toward it
+      if prediction drifted (basic version: hard snap if error exceeds a
+      threshold; polish later with smoothing).
+- [ ] Remote ships (not locally owned): interpolate between the last two
+      received network states instead of snapping on every update.
+- [ ] This is the highest-skill, most iterative phase — budget real time for
+      tuning "feel," not just correctness.
+
+---
+
+## Phase 8 — Real server browser / connect flow
+
+**Goal:** menus do what they currently only pretend to do.
+
+- [ ] `menu/server_browser.gd`'s server list is a single hardcoded
+      "Trench Wars 0/32" entry. Replace with either: (a) a small manual
+      "enter IP" field for direct-connect testing, or (b) if a lightweight
+      server-list service exists by this point, query it.
+- [ ] `menu/main_menu.gd`'s CASUAL/RANKED buttons currently skip networking
+      entirely and load `world.tscn` locally. Route CASUAL through the same
+      `NetworkManager.join_server` path once a target server is chosen.
+- [ ] Handle connection failure / timeout UI (currently nothing exists for
+      this — `connection_failed` signal has no handler anywhere).
+
+---
+
+## Phase 9 — Testing & hardening
+
+- [ ] Test with 2 clients, then push toward the real casual target (25v25)
+      to find where naive full-replication breaks down (bandwidth, spawn
+      storms). Consider interest management / relevance culling only if
+      needed at that scale — don't build it preemptively.
+- [ ] Artificially add latency/packet loss locally (Godot has debug tools
+      for this, or use `tc`/`netem` on Linux) and verify prediction/
+      reconciliation still feels acceptable.
+- [ ] Verify a client can't cheat: send garbage/rapid-fire input via a
+      modified client and confirm the server-side rate limits / bounds
+      checks (added in Phases 4–6) actually hold.
+
+---
+
+## Phase 10 — Deferred / parallelizable (not blocking core multiplayer)
+
+These don't block getting ship-vs-ship combat working over the network and
+can happen in parallel or after Phases 1–9:
+
+- [ ] Matchmaking backend (queue, MMR, lobby assignment) — see `tech.md`'s
+      Go/Node + Redis + Postgres sketch.
+- [ ] GodotSteam integration (auth, VAC, lobbies).
+- [ ] Lag compensation (server-side rewind for hit validation) — only
+      matters once hit-detection precision is actually being contested;
+      skip until basic damage registration is proven reliable.
+- [ ] Bot fill for casual matches (`bots.md`) — depends on Phases 3–6 being
+      done, since bots need to be simulate-able the same way real players'
+      ships are.
+- [ ] Galaxy war meta / sector control — orthogonal system, layer on top
+      once match-level multiplayer is solid.
+
+---
+
+## Effort summary
+
+| Phase | Relative effort | Notes |
+|---|---|---|
+| 1. ENet bootstrap | Small | 1–2 days |
+| 2. Per-peer state | Small–Medium | Mechanical, touches every menu script |
+| 3. Spawning | Medium | Camera/HUD ownership bugs are the sharp edges |
+| 4. Input/sim split | Medium | The core refactor of `ship_movement.gd` |
+| 5. Bullets | Small–Medium | Mostly follows the pattern from Phase 4 |
+| 6. Authoritative health | Medium | Mostly enforcement of what Phase 4/5 set up |
+| 7. Prediction/reconciliation | Medium–Large | Iterative feel-tuning, not just correctness |
+| 8. Real menus | Small | UI wiring once NetworkManager exists |
+| 9. Testing/hardening | Medium | Scales with target match size (25v25) |
+| 10. Deferred systems | Large, but parallelizable | Doesn't block core multiplayer |
+
+**Bare working version (Phases 1–6, no prediction polish):** roughly 1–2
+weeks of focused work. **Feeling good at 25v25 (through Phase 9):** the long
+pole — budget significantly more for iteration on Phase 7 in particular.

overview/structure.md

@@ -18,15 +18,18 @@ spacewar/                        ← repo root
     │   ├── ship_movement.gd      ← player ship logic
     │   └── bullet.tscn/gd        ← projectile
     ├── world/
-    │   ├── world.tscn            ← game world
-    │   └── tile_map.tscn         ← unused prototype tilemap
+    │   ├── world.tscn             ← game world; world.gd loads the active map into MapContainer
+    │   ├── world.gd                ← picks/instances a map scene from world/maps/
+    │   ├── world_tileset.tres      ← shared TileSet resource (walls.png + asteroids.png atlas sources)
+    │   └── maps/
+    │       └── map_01.tscn         ← hand-painted map: Walls + Asteroids TileMapLayers, team spawn Marker2Ds
     └── assets/
         ├── icon.svg
         └── images/
             ├── background/skybox/     ← 6 space background PNGs (1.png – 6.png)
             ├── effects/                ← explosion1.png
             ├── ships/example_ships/   ← 4 placeholder ship sprites (1.png, 1B.png, 2a.png, 3b.png)
-            └── tiles/                  ← bwQ7rQ.png, used by tile_map.tscn
+            └── tiles/                  ← walls.png, asteroids.png, used by world_tileset.tres
 ```
 
 > **Note:** `asteroid_movement.gd` referenced in an earlier version of this doc does not exist yet — it's still an open task (see `CLAUDE.md`).
@@ -40,8 +43,8 @@ MainMenu (Control)   ← main_menu.gd builds all UI in _ready()
 
 ### `world/world.tscn` — game world
 ```
-World (Node2D)
-├── TextureRect              ← static space background (skybox/1.png)
+World (Node2D)              ← world.gd instances MAP_SCENE into MapContainer on _ready()
+├── MapContainer (Node2D)    ← holds the instanced map (world/maps/map_01.tscn), background included
 ├── Player                   ← instance of ships/ship.tscn
 ├── HUD (CanvasLayer)
 │   └── HealthLabel
@@ -49,6 +52,17 @@ World (Node2D)
 └── TeamSelect (CanvasLayer, layer=20)  ← menu/team_select.tscn; queue_free()s after selection
 ```
 
+### `world/maps/map_01.tscn` — hand-painted map
+```
+Map01 (Node2D)
+├── Background (TextureRect)     ← per-map space background (skybox/1.png); visible while editing this scene
+├── Walls (TileMapLayer)         ← painted by hand in the Godot Tile Editor, uses world_tileset.tres
+├── Asteroids (TileMapLayer)     ← painted by hand, same shared tileset
+└── SpawnPoints (Node2D)
+    ├── TeamASpawn1 (Marker2D)   ← group "team_a_spawn"
+    └── TeamBSpawn1 (Marker2D)   ← group "team_b_spawn"
+```
+
 ### `ships/ship.tscn` — player ship
 ```
 Player (CharacterBody2D)   ← ship_movement.gd

spacewar/assets/images/tiles/asteroids.png.import

@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://c7vt2kqf8ugux"
+path="res://.godot/imported/asteroids.png-ee88b2c6e2e07aea70f4dd513b385c96.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/images/tiles/asteroids.png"
+dest_files=["res://.godot/imported/asteroids.png-ee88b2c6e2e07aea70f4dd513b385c96.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

spacewar/assets/images/tiles/walls.png.import

@@ -2,16 +2,16 @@
 
 importer="texture"
 type="CompressedTexture2D"
-uid="uid://dglp131j5tga6"
-path="res://.godot/imported/bwQ7rQ.png-f54459e0d6bfa1fb00ae56276884677f.ctex"
+uid="uid://b0arbt71qfb8l"
+path="res://.godot/imported/walls.png-6781334e49c209c81b477da0160ec804.ctex"
 metadata={
 "vram_texture": false
 }
 
 [deps]
 
-source_file="res://assets/images/tiles/bwQ7rQ.png"
-dest_files=["res://.godot/imported/bwQ7rQ.png-f54459e0d6bfa1fb00ae56276884677f.ctex"]
+source_file="res://assets/images/tiles/walls.png"
+dest_files=["res://.godot/imported/walls.png-6781334e49c209c81b477da0160ec804.ctex"]
 
 [params]
 

spacewar/autoload/game_config.gd

@@ -15,12 +15,18 @@ var bullet_speed: float = 450.0
 var ship_max_health: int = 100
 var ship_respawn_delay: float = 3.0
 var ship_invincibility_time: float = 2.0
-var ship_wall_damage: int = 1
 var bullet_damage: int = 40
 
+# Environment collision (asteroids only) — bounce-back and impact damage scale with impact speed
+var ship_bounce_restitution: float = 0.45
+var ship_collision_damage_scale: float = 0.064
+
 # Set before entering a game
 var player_name: String = ""
 var player_race: int = 0
 var player_ship_path: String = ""
 var player_ship_scale: float = 1.0
 var player_ship_speed_factor: float = 1.0
+
+# Current map's play area, in world coordinates. Set by world.gd on load.
+var world_bounds: Rect2 = Rect2(0, 0, 1152, 648)

spacewar/project.godot

@@ -21,9 +21,11 @@ GameConfig="*res://autoload/game_config.gd"
 
 [display]
 
-window/size/viewport_width=1280
-window/size/viewport_height=800
-window/size/resizable=false
+window/size/viewport_width=2560
+window/size/viewport_height=1440
+window/size/mode=3
+window/stretch/mode="canvas_items"
+window/stretch/aspect="expand"
 
 [input]
 

spacewar/ships/bullet.gd

@@ -8,9 +8,8 @@ func _ready() -> void:
 
 func _process(delta: float) -> void:
 	global_position += velocity * delta
-	var screen = get_viewport_rect().size
-	if (global_position.x < 0 or global_position.x > screen.x or
-			global_position.y < 0 or global_position.y > screen.y):
+	var bounds = GameConfig.world_bounds.grow(64.0)
+	if not bounds.has_point(global_position):
 		queue_free()
 
 func _on_body_entered(body: Node) -> void:

spacewar/ships/ship.tscn

@@ -16,3 +16,9 @@ scale = Vector2(0.229, 0.229)
 texture = ExtResource("2_epypp")
 
 [node name="VisibleOnScreenNotifier2D" type="VisibleOnScreenNotifier2D" parent="." unique_id=1504818491]
+
+[node name="Camera2D" type="Camera2D" parent="."]
+current = true
+rotating = false
+position_smoothing_enabled = true
+position_smoothing_speed = 8.0

spacewar/ships/ship_movement.gd

@@ -57,7 +57,9 @@ func _physics_process(delta: float) -> void:
 
 	velocity = velocity.limit_length(max_speed)
 
+	var velocity_before_move := velocity
 	move_and_slide()
+	_handle_environment_collisions(velocity_before_move)
 
 	# 4. SHOOT
 	_fire_cooldown -= delta
@@ -70,15 +72,34 @@ func _physics_process(delta: float) -> void:
 		get_parent().add_child(bullet)
 
 	# 5. WALL COLLISION
-	var screen = get_viewport_rect().size
-	if global_position.x < 0 or global_position.x > screen.x:
+	var bounds = GameConfig.world_bounds
+	if global_position.x < bounds.position.x or global_position.x > bounds.end.x:
 		velocity.x = 0
-		global_position.x = clamp(global_position.x, 0, screen.x)
-		take_damage(GameConfig.ship_wall_damage)
-	if global_position.y < 0 or global_position.y > screen.y:
+		global_position.x = clamp(global_position.x, bounds.position.x, bounds.end.x)
+	if global_position.y < bounds.position.y or global_position.y > bounds.end.y:
 		velocity.y = 0
-		global_position.y = clamp(global_position.y, 0, screen.y)
-		take_damage(GameConfig.ship_wall_damage)
+		global_position.y = clamp(global_position.y, bounds.position.y, bounds.end.y)
+
+func _handle_environment_collisions(previous_velocity: Vector2) -> void:
+	for i in get_slide_collision_count():
+		var collision := get_slide_collision(i)
+		var collider := collision.get_collider() as Node
+		if collider == null:
+			continue
+		var is_hazard: bool = collider.is_in_group("environment_hazard")
+		var is_wall: bool = collider.is_in_group("environment_wall")
+		if not (is_hazard or is_wall):
+			continue
+		var normal := collision.get_normal()
+		var impact_speed := -previous_velocity.dot(normal)
+		if impact_speed <= 0.0:
+			continue
+		velocity = previous_velocity.bounce(normal) * GameConfig.ship_bounce_restitution
+		if is_hazard:
+			var damage := int(impact_speed * GameConfig.ship_collision_damage_scale)
+			if damage > 0:
+				take_damage(damage)
+
 
 func take_damage(amount: int) -> void:
 	if _invincible or _dead:
@@ -96,8 +117,7 @@ func _die() -> void:
 	_respawn()
 
 func _respawn() -> void:
-	var screen = get_viewport_rect().size
-	global_position = screen / 2.0
+	global_position = _get_spawn_position()
 	velocity = Vector2.ZERO
 	rotation = 0.0
 	health = GameConfig.ship_max_health
@@ -107,6 +127,13 @@ func _respawn() -> void:
 	_invincible_timer = GameConfig.ship_invincibility_time
 	_update_hud()
 
+func _get_spawn_position() -> Vector2:
+	var markers := get_tree().get_nodes_in_group("team_a_spawn") + get_tree().get_nodes_in_group("team_b_spawn")
+	if markers.size() > 0:
+		return markers[randi() % markers.size()].global_position
+	return GameConfig.world_bounds.get_center()
+
+
 func _update_hud() -> void:
 	var label = get_node_or_null("/root/World/HUD/HealthLabel")
 	if label:

spacewar/world/maps/map_01.tscn

@@ -0,0 +1,33 @@
+[gd_scene format=4 uid="uid://cecn8fghm8h3j"]
+
+[ext_resource type="TileSet" uid="uid://cufng7112p6a7" path="res://world/world_tileset.tres" id="1_tileset"]
+[ext_resource type="Texture2D" uid="uid://d0i6jwqh131b1" path="res://assets/images/background/skybox/1.png" id="2_skybox"]
+
+[node name="Map01" type="Node2D" unique_id=1843060857]
+
+[node name="Background" type="TextureRect" parent="." unique_id=1935208901]
+texture_repeat = 2
+offset_left = -7008.0
+offset_top = -3000.0
+offset_right = 7008.0
+offset_bottom = 3000.0
+texture = ExtResource("2_skybox")
+expand_mode = 3
+
+[node name="Walls" type="TileMapLayer" parent="." unique_id=1965607014]
+scale = Vector2(0.15, 0.15)
+tile_map_data = PackedByteArray("AAAFACYAAAABAAAAAAAFABkAAAABAAAAAAAFAA0AAAABAAAAAAAFAAAAAAABAAAAAAAFAPT/AAABAAAAAAARABEAAAABAAEAAAA=")
+tile_set = ExtResource("1_tileset")
+
+[node name="Asteroids" type="TileMapLayer" parent="." unique_id=1745417803]
+scale = Vector2(0.15, 0.15)
+tile_map_data = PackedByteArray("AAAMAAEAAQAAAAMAAAALAPz/AQAAAAMAAAD6////AQAAAAMAAAD6/wgAAQAAAAMAAAAOAAgAAQAAAAMAAAA=")
+tile_set = ExtResource("1_tileset")
+
+[node name="SpawnPoints" type="Node2D" parent="." unique_id=1668900368]
+
+[node name="TeamASpawn1" type="Marker2D" parent="SpawnPoints" unique_id=946644647 groups=["team_a_spawn"]]
+position = Vector2(5304, 0)
+
+[node name="TeamBSpawn1" type="Marker2D" parent="SpawnPoints" unique_id=449830331 groups=["team_b_spawn"]]
+position = Vector2(-5304, 0)

spacewar/world/world.gd

@@ -0,0 +1,43 @@
+extends Node2D
+
+const MAP_SCENE: PackedScene = preload("res://world/maps/map_01.tscn")
+
+@onready var _map_container: Node2D = $MapContainer
+
+
+func _ready() -> void:
+	var map := MAP_SCENE.instantiate()
+	_map_container.add_child(map)
+	var background := map.get_node_or_null("Background") as TextureRect
+	if background:
+		GameConfig.world_bounds = Rect2(background.position, background.size)
+	_build_tile_collisions(map)
+
+
+# Tiles have no collision shapes of their own, so spawn one StaticBody2D per
+# occupied cell. Asteroids get round hitboxes to roughly match their sprites.
+# Walls only bounce the ship; asteroids also deal impact damage.
+func _build_tile_collisions(map: Node) -> void:
+	for layer in map.find_children("*", "TileMapLayer", true, false):
+		var is_asteroid := layer.name == "Asteroids"
+		var group := "environment_hazard" if is_asteroid else "environment_wall"
+		_add_layer_colliders(layer, is_asteroid, group)
+
+
+func _add_layer_colliders(layer: TileMapLayer, use_circle: bool, group: String) -> void:
+	var tile_size := Vector2(layer.tile_set.tile_size)
+	for cell in layer.get_used_cells():
+		var body := StaticBody2D.new()
+		body.position = layer.map_to_local(cell)
+		body.add_to_group(group)
+		var shape := CollisionShape2D.new()
+		if use_circle:
+			var circle := CircleShape2D.new()
+			circle.radius = min(tile_size.x, tile_size.y) * 0.5
+			shape.shape = circle
+		else:
+			var rect := RectangleShape2D.new()
+			rect.size = tile_size
+			shape.shape = rect
+		body.add_child(shape)
+		layer.add_child(body)

spacewar/world/world.gd.uid

@@ -0,0 +1 @@
+uid://dqgg811tgnrka

spacewar/world/world.tscn

@@ -1,16 +1,14 @@
 [gd_scene format=3 uid="uid://c77s15ns13p6y"]
 
 [ext_resource type="PackedScene" uid="uid://dygtdlkvo6ofl" path="res://ships/ship.tscn" id="1_f3sb7"]
-[ext_resource type="Texture2D" uid="uid://d0i6jwqh131b1" path="res://assets/images/background/skybox/1.png" id="1_fj7yv"]
 [ext_resource type="PackedScene" uid="uid://cpausemenu01a" path="res://menu/pause_menu.tscn" id="2_pm"]
 [ext_resource type="PackedScene" uid="uid://dteamselect01" path="res://menu/team_select.tscn" id="3_ts"]
+[ext_resource type="Script" path="res://world/world.gd" id="4_world"]
 
 [node name="World" type="Node2D" unique_id=1962020789]
+script = ExtResource("4_world")
 
-[node name="TextureRect" type="TextureRect" parent="." unique_id=1177783968]
-offset_right = 1280.0
-offset_bottom = 800.0
-texture = ExtResource("1_fj7yv")
+[node name="MapContainer" type="Node2D" parent="."]
 
 [node name="Player" parent="." unique_id=2118863138 instance=ExtResource("1_f3sb7")]
 

spacewar/world/world_tileset.tres

@@ -0,0 +1,66 @@
+[gd_resource type="TileSet" format=3 uid="uid://cufng7112p6a7"]
+
+[ext_resource type="Texture2D" uid="uid://b0arbt71qfb8l" path="res://assets/images/tiles/walls.png" id="1_walls"]
+[ext_resource type="Texture2D" uid="uid://c7vt2kqf8ugux" path="res://assets/images/tiles/asteroids.png" id="2_asteroids"]
+
+[sub_resource type="TileSetAtlasSource" id="TileSetAtlasSource_walls"]
+texture = ExtResource("1_walls")
+texture_region_size = Vector2i(194, 196)
+2:0/0 = 0
+3:0/0 = 0
+4:0/0 = 0
+5:0/0 = 0
+1:0/0 = 0
+0:0/0 = 0
+0:1/0 = 0
+0:2/0 = 0
+0:3/0 = 0
+1:3/0 = 0
+2:3/0 = 0
+3:3/0 = 0
+4:3/0 = 0
+5:3/0 = 0
+5:2/0 = 0
+4:2/0 = 0
+3:2/0 = 0
+2:2/0 = 0
+1:2/0 = 0
+1:1/0 = 0
+2:1/0 = 0
+3:1/0 = 0
+4:1/0 = 0
+5:1/0 = 0
+
+[sub_resource type="TileSetAtlasSource" id="TileSetAtlasSource_asteroids"]
+texture = ExtResource("2_asteroids")
+texture_region_size = Vector2i(194, 196)
+0:0/0 = 0
+1:0/0 = 0
+2:0/0 = 0
+3:0/0 = 0
+4:0/0 = 0
+5:0/0 = 0
+5:1/0 = 0
+4:1/0 = 0
+3:1/0 = 0
+2:1/0 = 0
+1:1/0 = 0
+0:1/0 = 0
+0:2/0 = 0
+2:2/0 = 0
+1:2/0 = 0
+3:2/0 = 0
+4:2/0 = 0
+5:2/0 = 0
+5:3/0 = 0
+4:3/0 = 0
+3:3/0 = 0
+2:3/0 = 0
+1:3/0 = 0
+0:3/0 = 0
+
+[resource]
+tile_size = Vector2i(194, 196)
+physics_layer_0/collision_layer = 1
+sources/0 = SubResource("TileSetAtlasSource_walls")
+sources/1 = SubResource("TileSetAtlasSource_asteroids")