feat(level_menu)!: 修改场景结构，添加选择章节功能

LevelMenu 的场景结构发生变化： - LevelMenu - LevelMenuCamera # 相机 - SmoothMovement - LevelButtons # 选关按钮 - UI - PreviousLevelButton - NextLevelButton - Title 初始化时，会生成所有的选关按钮。按屏幕左右的按钮（PreviousLevelButton 或 NextLevelButton）可以移动相机，从而实现切换章节的功能。 BREAKING CHANGE: LevelMenu 的场景结构发生变化。
ligen131 · Feb 18, 2024 · b026348 · b026348
1 parent 03871f2
commit b026348
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Showing 3 changed files with 86 additions and 66 deletions.
diff --git a/levels/chapter_menu/level_menu/level_menu.gd b/levels/chapter_menu/level_menu/level_menu.gd
@@ -8,36 +8,30 @@ const LevelButtonScn := preload("res://levels/chapter_menu/level_menu/level_butt
 const BaseLevelScn := preload("res://levels/base_level/base_level.tscn")
 const CreditsScn := preload("res://objects/credits/credits.tscn")
 
-@export var chapter_id : int = 0
+const WIDTH := 1920 / 4
+
+var chapter_id : int = 0
 const button_width : int = 50
 const button_heigth : int = 50
 
-func init(chap_id : int, lvl_num : int) -> void:
-	if chap_id == LevelData.get_chapter_count():
-		add_child(CreditsScn.instantiate())
-		$Title.set_text("")
-		return
-
-
-	if lvl_num == -1:
-		lvl_num = LevelData.get_chapter_level_count(chap_id)
-
-	$Title.set_text(LevelData.CHAP_NAMES[chap_id]["name-en"])
-
-	chapter_id = chap_id
-	for level_id in range(0, lvl_num):
-		#print(level_id)
-		var button = LevelButtonScn.instantiate();
-		var x : int = button_width * (level_id % 7) + 60
-		var y : int = button_heigth * (level_id / 7) + 100
-		button.init(chapter_id, level_id, Vector2(x, y), 1)
-		button.enter_level.connect(_on_button_enter_level)
-		add_child(button)
+func init(chap_id: int) -> void:
+	self.chapter_id = chap_id
+	$UI/Title.text = LevelData.CHAP_NAMES[chapter_id]
+	$LevelMenuCamera.init_position(Vector2(WIDTH * chap_id, 0))
 
 func _ready():
-	$BackButton/icon.play("return")
-	pass
-
+	for cid in range(LevelData.get_chapter_count()): 
+		for lid in range(LevelData.get_chapter_level_count(cid)):
+			var button = LevelButtonScn.instantiate();
+			var x := WIDTH * cid + button_width * (lid % 7) + 60
+			var y := button_heigth * (lid / 7) + 100
+			button.init(cid, lid, Vector2(x, y), 1)
+			button.enter_level.connect(_on_button_enter_level)
+			$LevelButtons.add_child(button)
+
+	$UI/PreviousChapterButton.set_disabled(chapter_id == 0)
+	$UI/NextChapterButton.set_disabled(chapter_id == LevelData.get_chapter_count() - 1)
+
 
 func _on_button_enter_level(chap_id: int, lvl_id: int) -> void:
 	var base_level := BaseLevelScn.instantiate()
@@ -46,15 +40,20 @@ func _on_button_enter_level(chap_id: int, lvl_id: int) -> void:
 	get_tree().root.add_child(base_level)
 	queue_free()
 
-func _input(event: InputEvent):
-	if event is InputEventKey:
-		if event.keycode == KEY_ESCAPE and event.pressed:
-			_on_back_button_pressed()
 
-func _on_back_button_pressed():
-	var ChapterMenuScn = load("res://levels/chapter_menu/chapter_menu.tscn")
-	var chapter_menu = ChapterMenuScn.instantiate()
-
-	chapter_menu.init()
-	get_tree().root.add_child(chapter_menu)
-	queue_free()
+func _on_previous_chapter_button_pressed():
+	self.chapter_id -= 1
+	$UI/Title.text = LevelData.CHAP_NAMES[chapter_id]
+	$UI/PreviousChapterButton.set_disabled(true)
+	$UI/NextChapterButton.set_disabled(true)
+
+
+func _on_next_chapter_button_pressed():
+	self.chapter_id += 1
+	$UI/Title.text = LevelData.CHAP_NAMES[chapter_id]
+	$UI/PreviousChapterButton.set_disabled(true)
+	$UI/NextChapterButton.set_disabled(true)
+
+func _on_smooth_movement_timeout():
+	$UI/PreviousChapterButton.set_disabled(chapter_id == 0)
+	$UI/NextChapterButton.set_disabled(chapter_id == LevelData.get_chapter_count() - 1)
diff --git a/levels/chapter_menu/level_menu/level_menu.tscn b/levels/chapter_menu/level_menu/level_menu.tscn
@@ -1,41 +1,36 @@
-[gd_scene load_steps=8 format=3 uid="uid://doirpa1bwbjhr"]
+[gd_scene load_steps=6 format=3 uid="uid://doirpa1bwbjhr"]
 
 [ext_resource type="Script" path="res://levels/chapter_menu/level_menu/level_menu.gd" id="1_sd65g"]
-[ext_resource type="PackedScene" uid="uid://bepyyenjtc0p3" path="res://levels/chapter_menu/level_menu/level_button/level_button.tscn" id="2_saprs"]
-[ext_resource type="Texture2D" uid="uid://bxda1ilvqwc6f" path="res://objects/styled_button/return1.png" id="3_6x831"]
+[ext_resource type="Script" path="res://levels/chapter_menu/level_menu/level_menu_camera.gd" id="2_4o5wo"]
+[ext_resource type="PackedScene" uid="uid://drl1xe103umpi" path="res://objects/styled_button/styled_button.tscn" id="2_66j1c"]
+[ext_resource type="PackedScene" uid="uid://fxcs5dmb21q2" path="res://scripts/smooth_movement/smooth_movement.tscn" id="3_1jj52"]
 [ext_resource type="FontFile" uid="uid://1000owdyvwfg" path="res://fonts/unifont-15.1.04.otf" id="3_jlnpm"]
-[ext_resource type="Texture2D" uid="uid://cyl7cqhs4xnux" path="res://objects/styled_button/return2.png" id="4_wd0qw"]
-[ext_resource type="Texture2D" uid="uid://b48fn2ikxq33d" path="res://objects/styled_button/return3.png" id="5_eexmd"]
-
-[sub_resource type="SpriteFrames" id="SpriteFrames_waq31"]
-animations = [{
-"frames": [{
-"duration": 1.0,
-"texture": ExtResource("3_6x831")
-}, {
-"duration": 1.0,
-"texture": ExtResource("4_wd0qw")
-}, {
-"duration": 1.0,
-"texture": ExtResource("5_eexmd")
-}],
-"loop": true,
-"name": &"return",
-"speed": 5.0
-}]
 
 [node name="LevelMenu" type="Node2D"]
 script = ExtResource("1_sd65g")
 
-[node name="BackButton" parent="." instance=ExtResource("2_saprs")]
+[node name="LevelMenuCamera" type="Camera2D" parent="."]
+anchor_mode = 0
+script = ExtResource("2_4o5wo")
 
-[node name="icon" type="AnimatedSprite2D" parent="BackButton"]
-position = Vector2(5, 5)
-sprite_frames = SubResource("SpriteFrames_waq31")
-animation = &"return"
-centered = false
+[node name="SmoothMovement" parent="LevelMenuCamera" instance=ExtResource("3_1jj52")]
+smooth_type = 1
 
-[node name="Title" type="Label" parent="."]
+[node name="LevelButtons" type="Node" parent="."]
+
+[node name="UI" type="CanvasLayer" parent="."]
+
+[node name="PreviousChapterButton" parent="UI" instance=ExtResource("2_66j1c")]
+offset_top = 118.0
+offset_bottom = 152.0
+
+[node name="NextChapterButton" parent="UI" instance=ExtResource("2_66j1c")]
+offset_left = 446.0
+offset_top = 118.0
+offset_right = 480.0
+offset_bottom = 152.0
+
+[node name="Title" type="Label" parent="UI"]
 offset_top = 8.0
 offset_right = 480.0
 offset_bottom = 31.0
@@ -44,4 +39,8 @@ text = "Title"
 horizontal_alignment = 1
 vertical_alignment = 1
 
-[connection signal="pressed" from="BackButton" to="." method="_on_back_button_pressed"]
+[connection signal="timeout" from="LevelMenuCamera/SmoothMovement" to="." method="_on_smooth_movement_timeout"]
+[connection signal="pressed" from="UI/PreviousChapterButton" to="." method="_on_previous_chapter_button_pressed"]
+[connection signal="pressed" from="UI/PreviousChapterButton" to="LevelMenuCamera" method="_on_previous_chapter_button_pressed"]
+[connection signal="pressed" from="UI/NextChapterButton" to="." method="_on_next_chapter_button_pressed"]
+[connection signal="pressed" from="UI/NextChapterButton" to="LevelMenuCamera" method="_on_next_chapter_button_pressed"]
diff --git a/levels/chapter_menu/level_menu/level_menu_camera.gd b/levels/chapter_menu/level_menu/level_menu_camera.gd
@@ -0,0 +1,22 @@
+extends Camera2D
+
+
+const WIDTH := 1920 / 4
+const HEIGHT := 1080 / 4
+const MOVE_TIME := 0.3
+
+
+func _process(_delta):
+	self.position = $SmoothMovement.get_position()
+	# print($SmoothMovement.get_position())
+
+func init_position(pos: Vector2) -> void:
+	$SmoothMovement.set_position(pos)
+
+
+func _on_next_chapter_button_pressed():
+	$SmoothMovement.move_to($SmoothMovement.get_position() + Vector2(WIDTH, 0), MOVE_TIME)
+
+
+func _on_previous_chapter_button_pressed():
+	$SmoothMovement.move_to($SmoothMovement.get_position() - Vector2(WIDTH, 0), MOVE_TIME)