mirror of
https://github.com/MapMakersAndProgrammers/io_scene_a3d.git
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113 lines
4.3 KiB
Python
113 lines
4.3 KiB
Python
'''
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Copyright (c) 2025 Pyogenics <https://github.com/Pyogenics>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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'''
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from .IOTools import unpackStream
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from . import AlternativaProtocol
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class LightmapData:
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def __init__(self):
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self.lightColour = (0.0, 0.0, 0.0)
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self.ambientLightColour = (0.0, 0.0, 0.0)
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self.lightAngle = (0.0, 0.0) # (x, z)
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self.lightmaps = []
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self.mapObjects = []
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def read(self, stream):
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print("Reading LightmapData")
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# There is no signature so just start reading data and hope this is actually a lightmap data file
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version, = unpackStream("<I", stream)
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print(f"Reading LightmapData version {version}")
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if version == 1:
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self.read1(stream)
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elif version == 2:
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self.read2(stream)
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else:
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raise RuntimeError(f"Unknown LightmapData version: {version}")
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'''
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Version specific readers
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'''
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def read1(self, stream):
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raise RuntimeError("Version 1 LightmapData is not implemented yet")
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def read2(self, stream):
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# Light info
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self.lightColour, self.ambientLightColour = unpackStream("<2I", stream)
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self.lightAngle = unpackStream("<2f", stream)
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# Lightmaps
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lightmapCount, = unpackStream("<I", stream)
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print(f"Reading {lightmapCount} lightmaps")
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for _ in range(lightmapCount):
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lightmap = AlternativaProtocol.readString(stream)
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self.lightmaps.append(lightmap)
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# Map objects
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mapObjectCount, = unpackStream("<I", stream)
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print(f"Reading {mapObjectCount} map objects")
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for _ in range(mapObjectCount):
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mapObject = MapObject()
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mapObject.read(stream)
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self.mapObjects.append(mapObject)
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#XXX: there is more data but do we actually care about it?
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print(f"[LightmapData2 lightColour: {hex(self.lightColour)} ambientLightColour: {hex(self.ambientLightColour)} lightAngle: {self.lightAngle}]")
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'''
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Objects
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'''
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class MapObject:
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def __init__(self):
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self.index = 0
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self.lightmapIndex = 0
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self.lightmapScaleOffset = (0.0, 0.0, 0.0, 0.0)
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self.UV1 = []
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self.UV2 = []
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self.castShadows = False
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self.recieveShadows = False
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def read(self, stream):
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self.index, self.lightmapIndex = unpackStream("<2i", stream)
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# Read lightmap data
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if self.lightmapIndex >= 0:
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self.lightmapScaleOffset = unpackStream("<4f", stream)
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# Check if we have UVs and read them
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hasUVs, = unpackStream("b", stream)
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if hasUVs > 0:
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vertexCount, = unpackStream("<I", stream)
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for _ in range(vertexCount//2):
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UV1 = unpackStream("<2f", stream)
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self.UV1.append(UV1)
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UV2 = unpackStream("<2f", stream)
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self.UV2.append(UV2)
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# Light settings
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castShadows, recieveShadows = unpackStream("2b", stream)
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self.castShadows = castShadows > 0
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self.recieveShadows = recieveShadows > 0
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print(f"[MapObject index: {self.index} lightmapIndex: {self.lightmapIndex} lightmapScaleOffset: {self.lightmapScaleOffset} UV1: {len(self.UV1)} UV2: {len(self.UV2)} castShadows: {self.castShadows} recieveShadows: {self.recieveShadows}]") |