62 lines
2.2 KiB
GDScript3
62 lines
2.2 KiB
GDScript3
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class_name Vine extends Node2D
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var petal_location : Vector2
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@export var vine_locations : Array[Vector2]
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@export var bud_resource : PackedScene
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@onready var grid : Grid = get_tree().get_root().get_node("main/Earth/Grid")
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func draw_vine(pos1 : Vector2, pos2 : Vector2, img_path):
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var sprite = Sprite2D.new()
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get_tree().get_root().get_node("main").add_child(sprite)
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sprite.texture = ResourceLoader.load(img_path)
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sprite.position = (pos1 + pos2)/2.0
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sprite.rotation = (pos1 - pos2).angle() + PI/2
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sprite.scale *= (pos1 - pos2).length() * 1 / sprite.texture.get_width()
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sprite.scale.x = 3
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func grow_vine_sequence(location1 : Vector2, offset1 : Vector2, location2: Vector2, offset2 : Vector2, num_segments: int, img_path, grow_bud = false):
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var pos1 = grid.get_world_position(location1, offset1)
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var pos2 = grid.get_world_position(location2, offset2)
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var positions = []
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positions.append(pos1)
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var segment_length = (pos1 - pos2).length() / num_segments
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var offsets = generate_random_offsets(num_segments, 0.6 * segment_length)
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for i in range(num_segments - 1):
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var t = (i + 1) * 1.0/num_segments
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var center = t * pos2 + (1 - t) * pos1
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var offset = offsets[i + 1] * (pos2 - pos1).normalized().rotated(PI/2)
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positions.append(center + offset)
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positions.append(pos2)
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for i in range(num_segments):
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draw_vine(positions[i], positions[i+1], img_path)
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await get_tree().create_timer(0.2).timeout
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if grow_bud and location2.y > 0:
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spawn_bud(location2, offset2)
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func generate_random_offsets(segment_count, max_second_derivative):
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var differences = []
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var last_diff = 0
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for i in range(segment_count):
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var new_diff = last_diff + randf_range(-max_second_derivative, max_second_derivative)
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differences.append(new_diff)
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last_diff = new_diff
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var sum = 0.0
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for i in range(segment_count):
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sum += differences[i]
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var correction = - sum / segment_count
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for i in range(segment_count):
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differences[i] += correction
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var ret = []
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var next_val = 0
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for i in range(segment_count):
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ret.append(next_val)
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next_val += differences[i]
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return ret
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func spawn_bud(location, offset):
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var bud = bud_resource.instantiate()
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bud.location = location
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bud.offset = offset
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bud.vine = self
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get_tree().get_root().get_node("main").add_child(bud)
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