48 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
		
		
			
		
	
	
			48 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
|  | from lnx.logicnode.lnx_nodes import * | ||
|  | 
 | ||
|  | class LookAtNode(LnxLogicTreeNode): | ||
|  |     """Returns *a* rotation that makes something look away from X,Y or Z, and instead look in the 'from->to' direction""" | ||
|  |     bl_idname = 'LNLookAtNode' | ||
|  |     bl_label = 'Look At' | ||
|  |     lnx_section = 'rotation' | ||
|  |     lnx_version = 2 | ||
|  | 
 | ||
|  |     property0: HaxeEnumProperty( | ||
|  |         'property0', | ||
|  |         items = [('X', ' X', 'X'), | ||
|  |                  ('-X', '-X', '-X'), | ||
|  |                  ('Y', ' Y', 'Y'), | ||
|  |                  ('-Y', '-Y', '-Y'), | ||
|  |                  ('Z', ' Z', 'Z'), | ||
|  |                  ('-Z', '-Z', '-Z')], | ||
|  |         name='With', default='Z') | ||
|  | 
 | ||
|  |     def lnx_init(self, context): | ||
|  |         self.add_input('LnxVectorSocket', 'From Location') | ||
|  |         self.add_input('LnxVectorSocket', 'To Location') | ||
|  | 
 | ||
|  |         self.add_output('LnxRotationSocket', 'Rotation') | ||
|  | 
 | ||
|  |          | ||
|  |     def draw_buttons(self, context, layout): | ||
|  |         layout.prop(self, 'property0') | ||
|  | 
 | ||
|  | 
 | ||
|  |     def get_replacement_node(self, node_tree: bpy.types.NodeTree): | ||
|  |         if self.lnx_version not in (0, 1): | ||
|  |             raise LookupError() | ||
|  | 
 | ||
|  |          | ||
|  |         # transition from version 1 to version 2: make rotations their own sockets | ||
|  |         # this transition is a mess, I know.     | ||
|  |         newself = self.id_data.nodes.new('LNLookAtNode') | ||
|  |         converter = self.id_data.nodes.new('LNSeparateRotationNode') | ||
|  |         self.id_data.links.new(newself.outputs[0], converter.inputs[0]) | ||
|  |         converter.property0 = 'EulerAngles' | ||
|  |         converter.property1 = 'Rad' | ||
|  |         converter.property2 = 'XZY' | ||
|  |         for link in self.outputs[0].links: | ||
|  |             self.id_data.links.new(converter.outputs[0], link.to_socket) | ||
|  | 
 | ||
|  |         return [newself, converter] |