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Add edge-scrolling camera

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This commit is contained in:
Michele Rossi
2026-05-03 10:02:22 +02:00
parent 25659f6a92
commit 9e711d436c
5 changed files with 108 additions and 20 deletions
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10
README.md
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@@ -96,11 +96,11 @@ GameState.get_effective_multiplier(generator_id, kind) -> float
{
"save_format_version": 5,
"currencies": {
"<currency_id>": {
"current": {"m": float, "e": int},
"total": {"m": float, "e": int},
"all_time": {"m": float, "e": int}
}
"<currency_id>": {
"current": {"m": float, "e": int},
"total": {"m": float, "e": int},
"all_time": {"m": float, "e": int}
}
},
"generator_states": { ... },
"buff_levels": { "farm_flux": 5 },

69
core/edge_scroll_camera.gd Normal file
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@@ -0,0 +1,69 @@
## Scrolls the camera when the mouse cursor reaches the screen edge.
## Attach to a Camera2D node. Requires an OrthographicCamera2D or ViewportContainer
## to determine screen bounds at runtime.
extends Camera2D
## Speed at which the camera scrolls (pixels per second).
@export var scroll_speed: float = 400.0
## Distance from the edge (in pixels) that triggers scrolling.
@export var edge_margin: float = 40.0
## Whether to clamp the camera position to a specific region.
@export var clamp_enabled: bool = false
## Minimum bounds when clamping (in world space).
@export var clamp_min: Vector2 = Vector2.ZERO
## Maximum bounds when clamping (in world space).
@export var clamp_max: Vector2 = Vector2.ZERO
var _screen_rect: Rect2
func _ready() -> void:
_update_screen_rect()
var viewport: Viewport = get_viewport()
if viewport != null:
viewport.size_changed.connect(_update_screen_rect)
func _process(delta: float) -> void:
if is_zero_approx(scroll_speed):
return
var mouse_pos: Vector2 = get_viewport().get_mouse_position()
var scroll_dir: Vector2 = _get_scroll_direction(mouse_pos)
if scroll_dir != Vector2.ZERO:
position += scroll_dir * scroll_speed * delta
if clamp_enabled:
_clamp_position()
func _get_scroll_direction(mouse_pos: Vector2) -> Vector2:
var direction: Vector2 = Vector2.ZERO
if mouse_pos.x < _screen_rect.position.x + edge_margin:
direction.x -= 1.0
elif mouse_pos.x > _screen_rect.position.x + _screen_rect.size.x - edge_margin:
direction.x += 1.0
if mouse_pos.y < _screen_rect.position.y + edge_margin:
direction.y -= 1.0
elif mouse_pos.y > _screen_rect.position.y + _screen_rect.size.y - edge_margin:
direction.y += 1.0
return direction.normalized()
func _clamp_position() -> void:
position.x = clampf(position.x, clamp_min.x, clamp_max.x)
position.y = clampf(position.y, clamp_min.y, clamp_max.y)
func _update_screen_rect() -> void:
var viewport: Viewport = get_viewport()
if viewport != null:
_screen_rect = viewport.get_visible_rect()

1
core/edge_scroll_camera.gd.uid Normal file
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@@ -0,0 +1 @@
uid://b6systw05frh0

35
docs/gyms/tiny_sword/tiny_sword.tscn
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@@ -16,6 +16,7 @@
[ext_resource type="PackedScene" uid="uid://bf8lqbexvnx6e" path="res://docs/gyms/tiny_sword/buildings/monastery/monastery.tscn" id="13_no27p"]
[ext_resource type="PackedScene" uid="uid://rejxvjwybkll" path="res://sandbox/tiny_swords/Terrain/Resources/Wood/Trees/tree_1.tscn" id="14_0cs5o"]
[ext_resource type="PackedScene" uid="uid://bp5ng4vu4ot4a" path="res://docs/gyms/tiny_sword/buildings/alchemy_tower/alchemy_tower.tscn" id="14_hum8s"]
[ext_resource type="Script" uid="uid://b6systw05frh0" path="res://core/edge_scroll_camera.gd" id="17_x77df"]
[node name="TinySwords" type="Node" unique_id=498237642]
@@ -32,6 +33,22 @@ script = ExtResource("5_x77df")
config = ExtResource("6_xnhlc")
game_state = NodePath("..")
[node name="CanvasLayer" type="CanvasLayer" parent="LevelGameState" unique_id=993804078]
[node name="UI" type="Control" parent="LevelGameState/CanvasLayer" unique_id=1299828389]
layout_mode = 3
anchors_preset = 0
[node name="CurrencyPanel" parent="LevelGameState/CanvasLayer/UI" unique_id=2000000001 instance=ExtResource("9_cpnl")]
layout_mode = 1
[node name="GoalsDebugUI" parent="LevelGameState/CanvasLayer/UI" unique_id=1494700185 instance=ExtResource("10_qifrv")]
layout_mode = 1
offset_left = 1433.0
offset_top = 5.0
offset_right = 1913.0
offset_bottom = 263.0
[node name="World" type="Node2D" parent="LevelGameState" unique_id=2118297724]
[node name="ForestProps" type="Node2D" parent="LevelGameState/World" unique_id=649424542]
@@ -72,18 +89,6 @@ position = Vector2(105, 920)
[node name="AlchemyTower" parent="LevelGameState/World" unique_id=51852160 instance=ExtResource("14_hum8s")]
position = Vector2(1239, 775)
[node name="UI" type="Control" parent="LevelGameState" unique_id=1299828389]
layout_mode = 3
anchors_preset = 0
offset_right = 40.0
offset_bottom = 40.0
[node name="CurrencyPanel" parent="LevelGameState/UI" unique_id=2000000001 instance=ExtResource("9_cpnl")]
layout_mode = 1
[node name="GoalsDebugUI" parent="LevelGameState/UI" unique_id=1494700185 instance=ExtResource("10_qifrv")]
layout_mode = 1
offset_left = 1433.0
offset_top = 5.0
offset_right = 1913.0
offset_bottom = 263.0
[node name="Camera2D" type="Camera2D" parent="." unique_id=1494908331]
offset = Vector2(960, 540)
script = ExtResource("17_x77df")

13
docs/museums/edge_scroll_camera.tscn Normal file
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@@ -0,0 +1,13 @@
[gd_scene format=3 uid="uid://5vli1vqiqdrl"]
[ext_resource type="Script" uid="uid://b6systw05frh0" path="res://core/edge_scroll_camera.gd" id="1_08uhj"]
[ext_resource type="Texture2D" uid="uid://bgtt3wu43tajh" path="res://icon.svg" id="2_c5cli"]
[node name="EdgeScrollCamera" type="Node2D" unique_id=1977543223]
[node name="Camera2D" type="Camera2D" parent="." unique_id=455629291]
script = ExtResource("1_08uhj")
[node name="Icon" type="Sprite2D" parent="." unique_id=629901180]
position = Vector2(469, 252)
texture = ExtResource("2_c5cli")