131 lines
4 KiB
GDScript
131 lines
4 KiB
GDScript
extends Line2D
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const END_FITTING_DISTANCE=1 #fitting distance from end of pipe
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const CORNER_FITTING_DISTANCE=4 #fitting of last pipe before a corner piece
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const CORNER_NEXT_FITTING_DISTANCE=8 #fitting after corner
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const PIPE_MAX_LENGTH=2*55 #1m=55,172px
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const WEIGHT_DISTANCE_FROM_PIPE=9
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const WEIGHT_RANDOM_OFFSET=0
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const WEIGHT_DISTANCE_MIN=0.5*55
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const WEIGHT_DISTANCE_MAX=4*55
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const MIN_WEIGHT_DISTANCE_FROM_CORNER=20
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# Called when the node enters the scene tree for the first time.
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func _ready() -> void:
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#var staticbody=get_child(0) #get road collision object (StaticBody2D)
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var rightborder=true
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var staticbody:StaticBody2D=$road_r
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if staticbody==null:
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staticbody=$road_l
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rightborder=false #is left border
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addCaps($fitting)
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addWeights($weight,rightborder)
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var line_poly=Geometry2D.offset_polyline(points,width/2)
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for poly in line_poly:
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var col = CollisionPolygon2D.new()
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col.polygon=poly
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staticbody.add_child(col)
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func addCaps(fitting:Sprite2D) -> void:
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if fitting==null:
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return
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var lastp:Vector2
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var skipfirst=true
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for p:Vector2 in points:
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if skipfirst:
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lastp=p
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skipfirst=false
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continue #skip first
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var line_angle=(p-lastp).angle()
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#print("Point="+str(p)+" lastp="+str(lastp))
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#Add end fitting
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var fitting_distance_from_end=CORNER_FITTING_DISTANCE
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if points.find(p)==points.size()-1:
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fitting_distance_from_end=END_FITTING_DISTANCE
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var line_end_fitting_point=p + (lastp-p).normalized()*fitting_distance_from_end
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var newfitting:Sprite2D=fitting.duplicate()
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newfitting.transform=Transform2D(line_angle,line_end_fitting_point)
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add_child(newfitting)
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#Add corner fitting (beginning of pipe)
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if points.find(lastp)!=0: #if this pipe segment is not the first
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var line_corner_fitting_point=lastp + (p-lastp).normalized()*CORNER_NEXT_FITTING_DISTANCE
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var newcornerfitting:Sprite2D=fitting.duplicate()
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newcornerfitting.transform=Transform2D(line_angle,line_corner_fitting_point)
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add_child(newcornerfitting)
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#add intermediate fittings
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while (p-lastp).length()>PIPE_MAX_LENGTH:
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var line_end_intfitting_point=lastp + (p-lastp).normalized()*PIPE_MAX_LENGTH
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lastp=line_end_intfitting_point #update
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var newintfitting:Sprite2D=fitting.duplicate()
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newintfitting.transform=Transform2D(line_angle,line_end_intfitting_point)
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add_child(newintfitting)
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lastp=p
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fitting.queue_free() #remote original fitting
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func addWeights(weight:Sprite2D,rightborder:bool) -> void:
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if weight==null:
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return
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print("Add weights, rightboarder="+str(rightborder))
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var lengthWithoutSupport=0
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var lastp:Vector2
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var skipfirst=true
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for p:Vector2 in points:
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if skipfirst:
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lastp=p
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skipfirst=false
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continue #skip first
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var line_angle=(p-lastp).angle()
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lengthWithoutSupport+=(p-lastp).length()
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while lengthWithoutSupport>WEIGHT_DISTANCE_MAX:
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var line_weight_point=lastp + (p-lastp).normalized()*min(randf_range(WEIGHT_DISTANCE_MIN,WEIGHT_DISTANCE_MAX),(p-lastp).length()-MIN_WEIGHT_DISTANCE_FROM_CORNER)
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var newweight:Sprite2D=weight.duplicate()
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if newweight.region_enabled:
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var countTextures=newweight.texture.get_size().x/newweight.region_rect.size.x
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print("countTextures="+str(countTextures))
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newweight.region_rect.position.x=newweight.region_rect.size.x*randi_range(0,countTextures-1)
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print(" using pos="+str(newweight.region_rect.position))
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newweight.transform=Transform2D(0,line_weight_point+(Vector2.ONE*WEIGHT_DISTANCE_FROM_PIPE).rotated(line_angle+(90 if rightborder else -90))+Vector2(randf_range(-WEIGHT_RANDOM_OFFSET,WEIGHT_RANDOM_OFFSET),randf_range(-WEIGHT_RANDOM_OFFSET,WEIGHT_RANDOM_OFFSET)))
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if rad_to_deg(line_angle)<-90 or rad_to_deg(line_angle)>90:
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newweight.z_index=-1 #put behind
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else:
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newweight.z_index=1 #put in front
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if not rightborder:
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newweight.z_index*=-1 #flip for other side
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add_child(newweight)
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lastp=line_weight_point #update
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lengthWithoutSupport=(p-lastp).length()
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lastp=p
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weight.queue_free()
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