86 lines
3.4 KiB
GDScript3
86 lines
3.4 KiB
GDScript3
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tool
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extends Control
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# This is for playing around with weird control point curves in-editor.
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# Some slide types are a bit difficult to reason about.
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const ORBIT_INNER_RADIUS = sin(deg2rad(22.5)) # ~0.38
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const ORBIT_KAPPA = (sqrt(2)-1) * 4.0 / 3.0 # This is the length of control points along a tangent to approximate a circle (multiply by desired radius)
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export(float, -360, 360, 7.5) var angle_entry = -22.5 # degrees
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export(float, -360, 360, 7.5) var angle_exit = 112.5 # degrees
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var inner_radius = ORBIT_INNER_RADIUS
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export(float, 5.0, 120.0) var max_arc_angle := 45.0
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export(bool) var show_points := true
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export(bool) var show_handles := true
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export(bool) var flip_direction := false
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var sideorbit_center := Vector2.ZERO
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var curve2d := Curve2D.new()
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func _draw() -> void:
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# draw_circle(rect_size * 0.5, inner_radius * GameTheme.receptor_ring_radius, Color.darkgreen)
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var points = curve2d.get_baked_points()
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if len(points) < 2:
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return
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draw_set_transform(rect_size * 0.5, 0, Vector2.ONE * GameTheme.receptor_ring_radius)
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draw_circle(sideorbit_center, inner_radius, Color.darkgreen)
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draw_multiline(points, Color.white)
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var l = curve2d.get_point_count()
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var c_points = []
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var handles_in = []
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var handles_out = []
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for i in l:
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var p = curve2d.get_point_position(i)
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c_points.append(p)
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handles_in.append(curve2d.get_point_in(i) + p)
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handles_out.append(curve2d.get_point_out(i) + p)
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if show_handles:
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for i in l:
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draw_circle(handles_in[i], 0.01, Color.burlywood)
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draw_circle(handles_out[i], 0.01, Color.cadetblue)
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if show_points:
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for i in l:
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draw_circle(c_points[i], 0.012, Color.blanchedalmond)
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func _process(delta: float) -> void:
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curve2d.clear_points()
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curve2d.bake_interval = 0.01
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var rad_in = deg2rad(angle_entry)
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var rad_out = deg2rad(angle_exit)
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curve2d.add_point(polar2cartesian(1.0, rad_in))
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Note.curve2d_make_sideorbit(curve2d, rad_in, rad_out, flip_direction)
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curve2d.add_point(polar2cartesian(1.0, rad_out))
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sideorbit_center = polar2cartesian(inner_radius, rad_in-PI*0.5*(-1 if flip_direction else 1))
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update()
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#func curve2d_make_sideorbit(curve2d: Curve2D, rad_in: float, rad_out: float, ccw: bool, rad_max_arc:=PI*0.25, kappa:=ORBIT_KAPPA, inner_radius:=ORBIT_INNER_RADIUS):
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# var d_sign := -1 if ccw else 1
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#
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# sideorbit_center = polar2cartesian(inner_radius, rad_in-PI*0.5*d_sign)
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#
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# var rad_orbit_in := rad_in + PI*0.5*d_sign
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# var orbcenter_to_out := polar2cartesian(1.0, rad_out) - sideorbit_center
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# var rad_orbit_out := orbcenter_to_out.angle() - acos(inner_radius/orbcenter_to_out.length())*d_sign
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# var pos_orbit_out := sideorbit_center + polar2cartesian(inner_radius, rad_orbit_out)
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#
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# var rad_2 = rad_in + PI
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# var rad_2t = rad_2+PI*0.5*d_sign
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# var rad_3 = rad_out-PI*3/8*d_sign
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# var rad_3t = rad_3-PI*0.5*d_sign
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#
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# var a_diff = wrapf((rad_orbit_out-rad_orbit_in)*d_sign, 0.0001, TAU+0.0001)
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# var n = ceil(a_diff/rad_max_arc)
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# var ad = a_diff/n
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# var k = kappa*inner_radius*(2*ad/PI) # Not geometrically correct scaling but reasonable for now
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#
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## curve2d.add_point(polar2cartesian(1.0, rad_in))
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# curve2d.add_point(Vector2.ZERO, Vector2.ZERO, polar2cartesian(k, rad_2))
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# for i in range(1, n):
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# var ang = rad_orbit_in + i*ad*d_sign
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# curve2d.add_point(sideorbit_center + polar2cartesian(inner_radius, ang), polar2cartesian(k, ang-PI/2*d_sign), polar2cartesian(k, ang+PI/2*d_sign))
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#
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# curve2d.add_point(pos_orbit_out, polar2cartesian(k, rad_orbit_out-PI*0.5*d_sign))
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## curve2d.add_point(polar2cartesian(1.0, rad_out))
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