68 lines
3.2 KiB
Python
68 lines
3.2 KiB
Python
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from lnx.logicnode.lnx_nodes import *
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class DrawImageSequenceNode(LnxLogicTreeNode):
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"""Draws a sequence of image (images changing over time). The file names
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of images used in a sequence need to follow a certain pattern:
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`<prefix><frame-index>.<extension>`, `<prefix>` is an arbitrary filename
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that must be constant for the entire sequence, `<frame-index>`
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corresponds to the frame number of the image in the sequence.
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`<extension>` is the file extension (without a period ".").
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Image file names for a valid 2-frame sequence would for example
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look like this:
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```
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myImage1.png
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myImage2.png
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```
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@input Start: Evaluate the image filenames and start the sequence.
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If the sequence is currently running, nothing happens. If the
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sequence has finished and `Loop` is false, this input restarts
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the sequence.
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@input Stop: Stops the sequence and its drawing.
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@input Image File Prefix: See `<prefix>` above.
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@input Image File Extension: See `<extension>` above.
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@input Color: The color that the pixels of the images are multiplied with.
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@input X/Y: Position of the images, in pixels from the top left corner.
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@input Width/Height: Size of the images in pixels. The images
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grow towards the bottom right corner.
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@input Start Index: The first `<frame-index>` of the sequence (inclusive).
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@input End Index: The last `<frame-index>` of the sequence (inclusive).
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@input Frame Duration: Duration of a frame in seconds.
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@input Loop: Whether the sequence starts again from the first frame after the last frame.
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@input Wait For Load: If true, start the sequence only after all
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image files have been loaded. If false, the sequence starts immediately,
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but images that are not yet loaded are not rendered.
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@output On Start: Activated after the sequence has started. This output
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is influenced by the `Wait For Load` input.
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@output On Stop: Activated if the sequence ends or the `Stop` input
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is activated. This is not activated when the sequence restarts
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due to looping.
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"""
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bl_idname = 'LNDrawImageSequenceNode'
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bl_label = 'Draw Image Sequence'
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lnx_section = 'draw'
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lnx_version = 1
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def lnx_init(self, context):
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self.add_input('LnxNodeSocketAction', 'Start')
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self.add_input('LnxNodeSocketAction', 'Stop')
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self.add_input('LnxStringSocket', 'Image File Prefix')
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self.add_input('LnxStringSocket', 'Image File Extension')
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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('LnxFloatSocket', 'X')
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self.add_input('LnxFloatSocket', 'Y')
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self.add_input('LnxFloatSocket', 'Width')
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self.add_input('LnxFloatSocket', 'Height')
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self.add_input('LnxIntSocket', 'Start Index')
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self.add_input('LnxIntSocket', 'End Index', default_value=1)
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self.add_input('LnxFloatSocket', 'Frame Duration', default_value=1.0)
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self.add_input('LnxBoolSocket', 'Loop', default_value=True)
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self.add_input('LnxBoolSocket', 'Wait For Load', default_value=True)
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self.add_output('LnxNodeSocketAction', 'On Start')
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self.add_output('LnxNodeSocketAction', 'On Stop')
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