73 lines
2.9 KiB
Python
73 lines
2.9 KiB
Python
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from lnx.logicnode.lnx_nodes import *
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class DrawPolygonNode(LnxLogicTreeNode):
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"""Draws a polygon.
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@input Draw: Activate to draw the polygon on this frame. The input must
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be (indirectly) called from an `On Render2D` node.
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@input Color: The color of the polygon.
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@input Filled: Whether the polygon is filled or only the outline is drawn.
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@input Strength: The line strength if the polygon is not filled.
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@input Origin X/Origin Y: The origin position of the polygon, in pixels
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from the top left corner. This position is added to all other
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points, so they are defined relative to this position.
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@input Xn/Yn: The position of polygon's points, in pixels from `Origin X`/`Origin Y`.
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@output Out: Activated after the polygon has been drawn.
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@see [`kha.graphics2.GraphicsExtension.drawPolygon()`](http://kha.tech/api/kha/graphics2/GraphicsExtension.html#drawPolygon).
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@see [`kha.graphics2.GraphicsExtension.fillPolygon()`](http://kha.tech/api/kha/graphics2/GraphicsExtension.html#fillPolygon).
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"""
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bl_idname = 'LNDrawPolygonNode'
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bl_label = 'Draw Polygon'
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lnx_section = 'draw'
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lnx_version = 2
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min_inputs = 6
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num_choices: IntProperty(default=1, min=0)
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def __init__(self):
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super(DrawPolygonNode, self).__init__()
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array_nodes[str(id(self))] = self
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def lnx_init(self, context):
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self.add_input('LnxNodeSocketAction', 'Draw')
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self.add_input('LnxColorSocket', 'Color', default_value=[1.0, 1.0, 1.0, 1.0])
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self.add_input('LnxBoolSocket', 'Filled', default_value=False)
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self.add_input('LnxFloatSocket', 'Strength', default_value=1.0)
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self.add_input('LnxFloatSocket', 'Origin X')
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self.add_input('LnxFloatSocket', 'Origin Y')
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self.add_output('LnxNodeSocketAction', 'Out')
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def add_sockets(self):
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self.add_input('LnxFloatSocket', 'X' + str(self.num_choices))
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self.add_input('LnxFloatSocket', 'Y' + str(self.num_choices))
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self.num_choices += 1
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def remove_sockets(self):
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if self.num_choices > 1:
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self.inputs.remove(self.inputs.values()[-1])
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self.inputs.remove(self.inputs.values()[-1])
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self.num_choices -= 1
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def draw_buttons(self, context, layout):
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row = layout.row(align=True)
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op = row.operator('lnx.node_call_func', text='Add Point', icon='PLUS', emboss=True)
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op.node_index = str(id(self))
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op.callback_name = 'add_sockets'
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column = row.column(align=True)
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op = column.operator('lnx.node_call_func', text='', icon='X', emboss=True)
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op.node_index = str(id(self))
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op.callback_name = 'remove_sockets'
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if len(self.inputs) == self.min_inputs:
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column.enabled = False
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def get_replacement_node(self, node_tree: bpy.types.NodeTree):
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if self.lnx_version not in (0, 1):
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raise LookupError()
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return NodeReplacement.Identity(self)
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