66 lines
1.6 KiB
GDScript
66 lines
1.6 KiB
GDScript
extends Node2D
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class_name Pentagram
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var A: Vector2
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var B: Vector2
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var C: Vector2
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var D: Vector2
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var E: Vector2
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var center: Vector2
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var radius: int
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var points: Array
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var indexes: Array
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var snaped = false
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var snap_addr = 0
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func _ready():
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self.refresh()
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get_viewport().size_changed.connect(self.refresh)
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self.indexes = [
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0, 1, 2, 3, 4
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]
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func refresh():
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var view = get_viewport()
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self.radius = 256
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self.center = view.size/2
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var x = -PI/5
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var y = -PI/16
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self.A = self.center + self.get_point(-PI/2 - x) * self.radius
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self.B = self.center + self.get_point(0 - y) * self.radius
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self.C = self.center + self.get_point(PI/2) * self.radius
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self.D = self.center + self.get_point(PI + y) * self.radius
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self.E = self.center + self.get_point(-PI/2 + x) * self.radius
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self.points = [self.A, self.B, self.C, self.D, self.E]
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func _draw():
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# draw_circle(self.center, self.radius, Color.BLACK)
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var w = 8
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draw_line(self.A, self.C, Color.DARK_RED, w)
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draw_line(self.C, self.E, Color.DARK_RED, w)
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draw_line(self.E, self.B, Color.DARK_RED, w)
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draw_line(self.B, self.D, Color.DARK_RED, w)
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draw_line(self.D, self.A, Color.DARK_RED, w)
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func get_point(angle):
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return Vector2(cos(angle), sin(angle))
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func nearest(rune):
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var point = null
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var dist = null
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for pts in self.points:
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var d = rune.distance_squared_to(pts)
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if dist == null or dist < d:
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dist = d
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point = pts
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return point
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func snap(pos: Vector2, dist):
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self.snaped = false
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for pts in self.points:
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if pos.distance_squared_to(pts) < dist * dist:
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self.snaped = true
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self.snap_addr = self.points.find(pts)
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return pts
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return pos
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