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main.gd
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main.gd
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extends Control
var my_curve : Curve
var window_size: Vector2
var curve_height: float = 150
var use_baked : bool
var sample_offset:float
var sample_value:float
# Called when the node enters the scene tree for the first time.
func _ready():
window_size = get_viewport().get_visible_rect().size
my_curve = Curve.new()
switch_curve("x ^ 2")
$VBoxContainer/HBoxContainer2/VBoxContainer/SampleTypes.select(1)
refresh()
# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
pass
func switch_curve(curve_name):
my_curve.clear_points()
match curve_name:
"x ^ 2":
my_curve.add_point(Vector2(0.0, 0.00), 0.0, 0.0, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.1, 0.01), 0.2, 0.2, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.2, 0.04), 0.4, 0.4, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.3, 0.09), 0.6, 0.6, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.4, 0.16), 0.8, 0.8, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.5, 0.25), 1.0, 1.0, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.6, 0.36), 1.2, 1.2, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.7, 0.49), 1.4, 1.4, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.8, 0.64), 1.6, 1.6, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(0.9, 0.81), 1.8, 1.8, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
my_curve.add_point(Vector2(1.0, 1.00), 2.0, 2.0, Curve.TANGENT_FREE,Curve.TANGENT_FREE)
"sawtooth 1": # Taken from test_curve.h
my_curve.add_point(Vector2(0.00, 0.0))
my_curve.add_point(Vector2(0.25, 1.0))
my_curve.add_point(Vector2(0.50, 0.0))
my_curve.add_point(Vector2(0.75, 1.0))
"sawtooth 2": # Taken from test_curve.h
my_curve.add_point(Vector2(0.00, 0.0), 0.0, 0.0, Curve.TANGENT_LINEAR, Curve.TANGENT_LINEAR)
my_curve.add_point(Vector2(0.25, 1.0), 0.0, 0.0, Curve.TANGENT_LINEAR, Curve.TANGENT_LINEAR)
my_curve.add_point(Vector2(0.50, 0.0), 0.0, 0.0, Curve.TANGENT_LINEAR, Curve.TANGENT_LINEAR)
my_curve.add_point(Vector2(0.75, 1.0), 0.0, 0.0, Curve.TANGENT_LINEAR, Curve.TANGENT_LINEAR)
func refresh():
window_size = get_viewport().get_visible_rect().size
var bake_resolution = $VBoxContainer/HBoxContainer/BakeResolution.value
my_curve.bake_resolution = bake_resolution
var sample_points = $VBoxContainer/HBoxContainer/SamplePoints.value
var sample_interval = 1 / (sample_points -1)
var distance_between_points = sample_interval * window_size.x
use_baked = $VBoxContainer/HBoxContainer2/VBoxContainer/SampleTypes.is_selected(1)
#var use_baked = $VBoxContainer/CheckBox.button_pressed
var curve_line : Line2D = $CurveLine
var marker = $ValueMarker
curve_line.clear_points()
if use_baked:
for i in sample_points:
curve_line.add_point(Vector2(i * distance_between_points, window_size.y - (curve_height * my_curve.sample_baked(i * sample_interval))))
sample_value = my_curve.sample_baked(sample_offset)
else:
for i in sample_points:
curve_line.add_point(Vector2(i * distance_between_points, window_size.y - (curve_height * my_curve.sample(i * sample_interval))))
sample_value = my_curve.sample(sample_offset)
marker.clear_points()
marker.add_point(Vector2(0, window_size.y - (curve_height * sample_value)))
marker.add_point(Vector2(window_size.x, window_size.y - (curve_height * sample_value)))
$VBoxContainer/HBoxContainer2/VBoxContainer/SampleValue.text = "value: %.5f" % sample_value
func _on_check_box_toggled(button_pressed):
refresh()
func _on_bake_resolution_value_changed(value):
refresh()
func _on_sample_points_value_changed(value):
refresh()
func _on_item_list_item_selected(index):
refresh()
func _on_curve_list_item_selected(index):
switch_curve($VBoxContainer/HBoxContainer2/CurveList.get_item_text(index))
refresh()
func _on_sample_offset_value_changed(value):
sample_offset = value
var marker = $OffsetMarker
var offset = value * get_viewport().get_visible_rect().size.x
marker.clear_points()
marker.add_point(Vector2(offset, window_size.y))
marker.add_point(Vector2(offset, window_size.y - curve_height))
refresh()