Level Functionality Complete

Levels/SlowTime.gd

@@ -0,0 +1,34 @@
+extends Node
+
+const END_VALUE = 1
+
+signal unfreeze
+
+var is_active = false
+var time_start
+var duration_ms
+var start_value
+
+
+
+func start(duration = 1, strength = 0.9):
+    time_start = OS.get_ticks_msec()
+    duration_ms = duration * 1000
+    start_value = 1 - strength
+    Engine.time_scale = start_value
+    is_active = true
+
+
+func _process(delta):
+    if is_active:
+        var current_time = OS.get_ticks_msec() - time_start
+        var value = circl_ease_in(current_time, start_value, END_VALUE, duration_ms)
+        if current_time >= duration_ms:
+            is_active = false
+            value = END_VALUE
+            emit_signal('unfreeze')
+        Engine.time_scale = value
+        
+func circl_ease_in(t, b, c, d):
+    t /=d
+    return -c * (sqrt(1 - t * t) - 1) + b