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#
#  This program is free software; you can redistribute it and/or
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#  as published by the Free Software Foundation; either version 2
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import bpy
from bpy.props import EnumProperty, BoolProperty, IntProperty, FloatProperty, FloatVectorProperty

from sverchok.node_tree import SverchCustomTreeNode
from sverchok.data_structure import (zip_long_repeat, enum_item_4, updateNode)
from sverchok.utils.pulga_physics_modular_core import SvAttractorsForce, SvAttractorsLineForce, SvAttractorsPlaneForce

class SvPulgaAttractorsForceNodeMk2(SverchCustomTreeNode, bpy.types.Node):
    """
    Triggers: Attraction Points
    Tooltip: Attractor/Repeller points with distance limit
    """
    bl_idname = 'SvPulgaAttractorsForceNodeMk2'
    bl_label = 'Pulga Attractors Force'
    bl_icon = 'MOD_PHYSICS'
    sv_icon = 'SV_PULGA_ATTRACTORS_FORCE'

    strength: FloatProperty(
        name='Strength', description='Attractors Force magnitude',
        default=1.0, precision=3, update=updateNode)
    max_distance: FloatProperty(
        name='Max Distance', description='Attractors maximum influence distance',
        default=10.0, precision=3, update=updateNode)
    decay_power: FloatProperty(
        name='Decay', description='Decay with distance 0 = no decay, 1 = linear, 2 = cubic...',
        default=0.0, precision=3, update=updateNode)

    def update_sockets(self, context):
        self.inputs['Direction'].hide_safe = self.mode not in ['Line', 'Plane']
        if self.mode == 'Line':
            self.inputs['Direction'].label = 'Direction'
        else:
            self.inputs['Direction'].label = 'Normal'
        updateNode(self, context)
    mode: EnumProperty(
        name='Mode',
        items=enum_item_4(['Point', 'Line', 'Plane']),
        default='Point',
        update=update_sockets
    )


    def sv_init(self, context):
        self.inputs.new('SvVerticesSocket', "Location")
        self.inputs.new('SvVerticesSocket', "Direction")
        self.inputs["Direction"].hide_safe = True
        self.inputs.new('SvStringsSocket', "Strength").prop_name = 'strength'
        self.inputs.new('SvStringsSocket', "Max. Distance").prop_name = 'max_distance'
        self.inputs.new('SvStringsSocket', "Decay").prop_name = 'decay_power'


        self.outputs.new('SvPulgaForceSocket', "Force")

    def draw_buttons(self, context, layout):
        layout.prop(self, 'mode')

    def process(self):

        if not any(s.is_linked for s in self.outputs):
            return
        loc = self.inputs["Location"].sv_get(deepcopy=False)
        strength = self.inputs["Strength"].sv_get(deepcopy=False)
        max_distance = self.inputs["Max. Distance"].sv_get(deepcopy=False)
        decay_power = self.inputs["Decay"].sv_get(deepcopy=False)


        forces_out = []

        forces_out = []
        if self.mode == 'Point':
            for force in zip_long_repeat(loc, strength, max_distance, decay_power):

                forces_out.append(SvAttractorsForce(*force))
        else:
            direction = self.inputs["Direction"].sv_get(deepcopy=False)
            force_class = SvAttractorsLineForce if self.mode == 'Line' else SvAttractorsPlaneForce
            for force in zip_long_repeat(loc, direction, strength, max_distance, decay_power):

                forces_out.append(force_class(*force))


        self.outputs[0].sv_set([forces_out])




def register():
    bpy.utils.register_class(SvPulgaAttractorsForceNodeMk2)


def unregister():
    bpy.utils.unregister_class(SvPulgaAttractorsForceNodeMk2)
