Screens and swipe

Stage/stage.gd

@@ -1,3 +1,94 @@
 extends Control
 
-@export var Pages: Array[Container]
+@export var stage_pages: Array[Container]
+@export var stage_page_scroller: ScrollContainer
+
+const PAGE_COUNT = 5
+const PAGE_WIDTH = 1080
+const DRAG_TOLERANCE = 360
+const SWIPE_DURATION: float = 2
+const SWIPE_DELAY = 2000 # msec
+
+var g_tween: Tween = null
+var g_dragged_start: Vector2 = Vector2.ZERO
+var g_scroll_start: int = 0
+var g_current_page: int = 0
+
+var g_last_scroll_updated: int = 0
+
+var f_check_swipe: bool = false
+var g_swipe_time_delta: float = 0
+
+var g_counters: Dictionary[String, Counter] = {
+        "swipe": Counter.new(),
+    }
+
+
+func _ready() -> void:
+    pass
+        
+
+func _init() -> void:
+    pass
+    #page_scroller.scroll_horizontal = 3240
+
+    
+func _process(delta: float) -> void:
+    var actions = _check_counters(delta)
+    _do_actions(actions)
+    
+
+func _check_counters(delta: float) -> Array:
+    var actions: Array = []
+    for k in g_counters:
+        var cnt: Counter = g_counters[k]
+        if not cnt.is_active:
+            continue
+            
+        cnt.value += delta
+        if cnt.value >= cnt.sec:
+            actions.append(k)
+            cnt.value = 0
+            cnt.is_active = false
+        
+    return actions
+
+func _do_actions(actions: Array) -> void:
+    for action: String in actions:
+        match action:
+            "swipe": 
+                _swipe_to_nearest_page()
+
+func button_pressed() -> void: 
+    print(name)
+
+
+
+func _swipe_to_nearest_page() -> void:
+    if stage_page_scroller.scroll_horizontal % PAGE_WIDTH == 0: return
+    
+    var new_page: int = round(1.0 * stage_page_scroller.scroll_horizontal / PAGE_WIDTH)
+    #print(stage_page_scroller.scroll_horizontal, " | ", 1.0 * stage_page_scroller.scroll_horizontal / PAGE_WIDTH, " | ", new_page)
+
+    if g_tween != null:
+        if g_tween.is_running():
+            return
+
+    g_tween = stage_page_scroller.get_tree().create_tween()
+    g_tween.tween_property(stage_page_scroller, "scroll_horizontal", 
+        new_page * PAGE_WIDTH, SWIPE_DURATION).set_trans(Tween.TRANS_CUBIC).set_ease(Tween.EASE_OUT)
+
+
+func _input(event: InputEvent) -> void:
+
+    if event is InputEventScreenDrag:
+        stage_page_scroller.scroll_horizontal = clamp(
+                stage_page_scroller.scroll_horizontal - PAGE_COUNT * event.screen_relative.x,
+                0, PAGE_WIDTH * (PAGE_COUNT - 1))
+        g_counters.swipe.is_active = true
+        g_counters.swipe.value = 0
+    elif event is InputEventPanGesture:
+        g_counters.swipe.is_active = true
+        g_counters.swipe.value = 0
+    elif event is InputEventScreenTouch:
+        pass