From e1a3ca9c593ae2625b97a7fb34d5f126c933699f Mon Sep 17 00:00:00 2001
From: yuki <yvki@riseup.net>
Date: Sat, 15 Nov 2025 09:17:20 -0300
Subject: [PATCH] add basic camera

---
 scenes/level_camera/level_camera_2d.gd     | 31 ++++++++++++++++++++++
 scenes/level_camera/level_camera_2d.gd.uid |  1 +
 scenes/level_camera/level_camera_2d.tscn   |  6 +++++
 scenes/main.tscn                           |  6 ++++-
 4 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 scenes/level_camera/level_camera_2d.gd
 create mode 100644 scenes/level_camera/level_camera_2d.gd.uid
 create mode 100644 scenes/level_camera/level_camera_2d.tscn

diff --git a/scenes/level_camera/level_camera_2d.gd b/scenes/level_camera/level_camera_2d.gd
new file mode 100644
index 0000000..1fa1f30
--- /dev/null
+++ b/scenes/level_camera/level_camera_2d.gd
@@ -0,0 +1,31 @@
+extends Camera2D
+
+enum FollowTarget { BALL, PLAYER1, PLAYER2 }
+
+@export_range(0, 1, 0.01) var ball_weight: float = 0.6
+@export_range(0, 1, 0.01) var player_weight: float = 0.2
+@export var follow_speed: float = 8.0
+@export var deadzone_margin: float = 100.0
+
+@onready var ball: RigidBody2D = get_node("../Ball")
+@onready var player1: CharacterBody2D = get_node("../Player1")
+@onready var player2: CharacterBody2D = get_node("../Player2")
+
+var target_pos: Vector2 = Vector2.ZERO
+
+func _physics_process(delta: float) -> void:
+	var total_weight: float = ball_weight + player_weight * 2.0
+	target_pos = (
+		ball.global_position * ball_weight +
+		player1.global_position * player_weight +
+		player2.global_position * player_weight
+	) / total_weight
+	
+	global_position = global_position.lerp(target_pos, follow_speed * delta)
+	
+	var spread: float = maxf(
+		absf(player1.global_position.x - player2.global_position.x),
+		absf(player1.global_position.y - player2.global_position.y)
+	)
+	var target_zoom: Vector2 = Vector2.ONE * (600.0 / spread)
+	zoom = target_zoom.limit_length(1.5)
diff --git a/scenes/level_camera/level_camera_2d.gd.uid b/scenes/level_camera/level_camera_2d.gd.uid
new file mode 100644
index 0000000..b72781f
--- /dev/null
+++ b/scenes/level_camera/level_camera_2d.gd.uid
@@ -0,0 +1 @@
+uid://bsvjinfmr1pek
diff --git a/scenes/level_camera/level_camera_2d.tscn b/scenes/level_camera/level_camera_2d.tscn
new file mode 100644
index 0000000..71752af
--- /dev/null
+++ b/scenes/level_camera/level_camera_2d.tscn
@@ -0,0 +1,6 @@
+[gd_scene load_steps=2 format=3 uid="uid://7nljh05o8b8e"]
+
+[ext_resource type="Script" uid="uid://bsvjinfmr1pek" path="res://scenes/level_camera/level_camera_2d.gd" id="1_rls2d"]
+
+[node name="LevelCamera2D" type="Camera2D"]
+script = ExtResource("1_rls2d")
diff --git a/scenes/main.tscn b/scenes/main.tscn
index ace03fb..faaa0c3 100644
--- a/scenes/main.tscn
+++ b/scenes/main.tscn
@@ -1,8 +1,9 @@
-[gd_scene load_steps=4 format=4 uid="uid://d3c6aioatcy20"]
+[gd_scene load_steps=5 format=4 uid="uid://d3c6aioatcy20"]
 
 [ext_resource type="TileSet" uid="uid://doja61ouvb77l" path="res://resources/tilesets/level.tres" id="1_uu6xs"]
 [ext_resource type="PackedScene" uid="uid://642nm6c4mpxx" path="res://scenes/player/player.tscn" id="2_r0du0"]
 [ext_resource type="PackedScene" uid="uid://cmgwv41ht3q4j" path="res://scenes/ball/ball.tscn" id="3_r0du0"]
+[ext_resource type="PackedScene" uid="uid://7nljh05o8b8e" path="res://scenes/level_camera/level_camera_2d.tscn" id="4_jyhfs"]
 
 [node name="Main" type="Node"]
 
@@ -26,3 +27,6 @@ id = 2
 
 [node name="Ball" parent="." instance=ExtResource("3_r0du0")]
 position = Vector2(162, 115)
+
+[node name="LevelCamera2D" parent="." instance=ExtResource("4_jyhfs")]
+ball_weight = 0.4