552 lines
17 KiB
GDScript3
552 lines
17 KiB
GDScript3
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# The MIT License (MIT)
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#
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# Copyright (c) 2018 George Marques
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#
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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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#
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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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#
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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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tool
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extends Reference
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# Reads a TMX file from a path and return a Dictionary with the same structure
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# as the JSON map format
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# Returns an error code if failed
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func read_tmx(path):
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var parser = XMLParser.new()
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var err = parser.open(path)
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if err != OK:
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printerr("Error opening TMX file '%s'." % [path])
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return err
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while parser.get_node_type() != XMLParser.NODE_ELEMENT:
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err = parser.read()
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if err != OK:
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printerr("Error parsing TMX file '%s' (around line %d)." % [path, parser.get_current_line()])
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return err
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if parser.get_node_name().to_lower() != "map":
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printerr("Error parsing TMX file '%s'. Expected 'map' element.")
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return ERR_INVALID_DATA
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var data = attributes_to_dict(parser)
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if not "infinite" in data:
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data.infinite = false
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data.type = "map"
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data.tilesets = []
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data.layers = []
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err = parser.read()
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if err != OK:
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printerr("Error parsing TMX file '%s' (around line %d)." % [path, parser.get_current_line()])
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return err
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while err == OK:
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if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
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if parser.get_node_name() == "map":
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break
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elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
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if parser.get_node_name() == "tileset":
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# Empty element means external tileset
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if not parser.is_empty():
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var tileset = parse_tileset(parser)
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if typeof(tileset) != TYPE_DICTIONARY:
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# Error happened
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return err
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data.tilesets.push_back(tileset)
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else:
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var tileset_data = attributes_to_dict(parser)
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if not "source" in tileset_data:
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printerr("Error parsing TMX file '%s'. Missing tileset source (around line %d)." % [path, parser.get_current_line()])
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return ERR_INVALID_DATA
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data.tilesets.push_back(tileset_data)
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elif parser.get_node_name() == "layer":
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var layer = parse_tile_layer(parser, data.infinite)
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if typeof(layer) != TYPE_DICTIONARY:
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printerr("Error parsing TMX file '%s'. Invalid tile layer data (around line %d)." % [path, parser.get_current_line()])
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return ERR_INVALID_DATA
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data.layers.push_back(layer)
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elif parser.get_node_name() == "imagelayer":
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var layer = parse_image_layer(parser)
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if typeof(layer) != TYPE_DICTIONARY:
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printerr("Error parsing TMX file '%s'. Invalid image layer data (around line %d)." % [path, parser.get_current_line()])
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return ERR_INVALID_DATA
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data.layers.push_back(layer)
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elif parser.get_node_name() == "objectgroup":
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var layer = parse_object_layer(parser)
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if typeof(layer) != TYPE_DICTIONARY:
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printerr("Error parsing TMX file '%s'. Invalid object layer data (around line %d)." % [path, parser.get_current_line()])
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return ERR_INVALID_DATA
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data.layers.push_back(layer)
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elif parser.get_node_name() == "group":
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var layer = parse_group_layer(parser, data.infinite)
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if typeof(layer) != TYPE_DICTIONARY:
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printerr("Error parsing TMX file '%s'. Invalid group layer data (around line %d)." % [path, parser.get_current_line()])
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return ERR_INVALID_DATA
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data.layers.push_back(layer)
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elif parser.get_node_name() == "properties":
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var prop_data = parse_properties(parser)
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if typeof(prop_data) == TYPE_STRING:
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return prop_data
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data.properties = prop_data.properties
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data.propertytypes = prop_data.propertytypes
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err = parser.read()
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return data
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# Reads a TSX and return a tileset dictionary
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# Returns an error code if fails
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func read_tsx(path):
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var parser = XMLParser.new()
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var err = parser.open(path)
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if err != OK:
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printerr("Error opening TSX file '%s'." % [path])
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return err
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while parser.get_node_type() != XMLParser.NODE_ELEMENT:
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err = parser.read()
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if err != OK:
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printerr("Error parsing TSX file '%s' (around line %d)." % [path, parser.get_current_line()])
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return err
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if parser.get_node_name().to_lower() != "tileset":
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printerr("Error parsing TMX file '%s'. Expected 'map' element.")
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return ERR_INVALID_DATA
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var tileset = parse_tileset(parser)
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return tileset
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# Parses a tileset element from the XML and return a dictionary
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# Return an error code if fails
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func parse_tileset(parser):
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var err = OK
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var data = attributes_to_dict(parser)
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data.tiles = {}
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err = parser.read()
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while err == OK:
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if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
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if parser.get_node_name() == "tileset":
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break
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elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
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if parser.get_node_name() == "tile":
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var attr = attributes_to_dict(parser)
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var tile_data = parse_tile_data(parser)
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if typeof(tile_data) != TYPE_DICTIONARY:
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# Error happened
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return tile_data
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if "properties" in tile_data and "propertytypes" in tile_data:
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if not "tileproperties" in data:
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data.tileproperties = {}
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data.tilepropertytypes = {}
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data.tileproperties[str(attr.id)] = tile_data.properties
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data.tilepropertytypes[str(attr.id)] = tile_data.propertytypes
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tile_data.erase("tileproperties")
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tile_data.erase("tilepropertytypes")
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data.tiles[str(attr.id)] = tile_data
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elif parser.get_node_name() == "image":
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var attr = attributes_to_dict(parser)
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if not "source" in attr:
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printerr("Error loading image tag. No source attribute found (around line %d)." % [parser.get_current_line()])
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return ERR_INVALID_DATA
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data.image = attr.source
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if "width" in attr:
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data.imagewidth = attr.width
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if "height" in attr:
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data.imageheight = attr.height
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elif parser.get_node_name() == "properties":
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var prop_data = parse_properties(parser)
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if typeof(prop_data) != TYPE_DICTIONARY:
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# Error happened
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return prop_data
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data.properties = prop_data.properties
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data.propertytypes = prop_data.propertytypes
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err = parser.read()
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return data
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# Parses the data of a single tile from the XML and return a dictionary
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# Returns an error code if fails
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func parse_tile_data(parser):
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var err = OK
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var data = {}
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var obj_group = {}
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if parser.is_empty():
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return data
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err = parser.read()
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while err == OK:
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if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
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if parser.get_node_name() == "tile":
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return data
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elif parser.get_node_name() == "objectgroup":
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data.objectgroup = obj_group
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elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
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if parser.get_node_name() == "image":
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# If there are multiple images in one tile we only use the last one.
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var attr = attributes_to_dict(parser)
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if not "source" in attr:
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printerr("Error loading image tag. No source attribute found (around line %d)." % [parser.get_current_line()])
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return ERR_INVALID_DATA
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data.image = attr.source
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data.imagewidth = attr.width
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data.imageheight = attr.height
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elif parser.get_node_name() == "objectgroup":
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obj_group = attributes_to_dict(parser)
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for attr in ["width", "height", "offsetx", "offsety"]:
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if not attr in obj_group:
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data[attr] = 0
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if not "opacity" in data:
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data.opacity = 1
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if not "visible" in data:
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data.visible = true
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if parser.is_empty():
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data.objectgroup = obj_group
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elif parser.get_node_name() == "object":
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if not "objects" in obj_group:
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obj_group.objects = []
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var obj = parse_object(parser)
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if typeof(obj) != TYPE_DICTIONARY:
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# Error happened
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return obj
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obj_group.objects.push_back(obj)
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elif parser.get_node_name() == "properties":
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var prop_data = parse_properties(parser)
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data["properties"] = prop_data.properties
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data["propertytypes"] = prop_data.propertytypes
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err = parser.read()
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return data
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# Parses the data of a single object from the XML and return a dictionary
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# Returns an error code if fails
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static func parse_object(parser):
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var err = OK
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var data = attributes_to_dict(parser)
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if not parser.is_empty():
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err = parser.read()
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while err == OK:
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if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
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if parser.get_node_name() == "object":
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break
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elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
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if parser.get_node_name() == "properties":
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var prop_data = parse_properties(parser)
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data["properties"] = prop_data.properties
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data["propertytypes"] = prop_data.propertytypes
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elif parser.get_node_name() == "point":
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data.point = true
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elif parser.get_node_name() == "ellipse":
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data.ellipse = true
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elif parser.get_node_name() == "polygon" or parser.get_node_name() == "polyline":
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var points = []
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var points_raw = parser.get_named_attribute_value("points").split(" ", false, 0)
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for pr in points_raw:
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points.push_back({
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"x": float(pr.split(",")[0]),
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"y": float(pr.split(",")[1]),
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})
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data[parser.get_node_name()] = points
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err = parser.read()
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return data
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# Parses a tile layer from the XML and return a dictionary
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# Returns an error code if fails
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func parse_tile_layer(parser, infinite):
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var err = OK
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var data = attributes_to_dict(parser)
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data.type = "tilelayer"
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if not "x" in data:
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data.x = 0
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if not "y" in data:
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data.y = 0
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if infinite:
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data.chunks = []
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else:
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data.data = []
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var current_chunk = null
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var encoding = ""
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if not parser.is_empty():
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err = parser.read()
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while err == OK:
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if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
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if parser.get_node_name() == "layer":
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break
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elif parser.get_node_name() == "chunk":
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data.chunks.push_back(current_chunk)
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current_chunk = null
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elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
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if parser.get_node_name() == "data":
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var attr = attributes_to_dict(parser)
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if "compression" in attr:
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data.compression = attr.compression
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if "encoding" in attr:
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encoding = attr.encoding
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if attr.encoding != "csv":
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data.encoding = attr.encoding
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if not infinite:
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err = parser.read()
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if err != OK:
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return err
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if attr.encoding != "csv":
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data.data = parser.get_node_data().strip_edges()
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else:
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var csv = parser.get_node_data().split(",", false)
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for v in csv:
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data.data.push_back(int(v.strip_edges()))
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elif parser.get_node_name() == "tile":
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var gid = int(parser.get_named_attribute_value_safe("gid"))
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if infinite:
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current_chunk.data.push_back(gid)
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else:
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data.data.push_back(gid)
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elif parser.get_node_name() == "chunk":
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current_chunk = attributes_to_dict(parser)
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current_chunk.data = []
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if encoding != "":
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err = parser.read()
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if err != OK:
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return err
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if encoding != "csv":
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current_chunk.data = parser.get_node_data().strip_edges()
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else:
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var csv = parser.get_node_data().split(",", false)
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for v in csv:
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current_chunk.data.push_back(int(v.strip_edges()))
|
||
|
|
|
||
|
|
elif parser.get_node_name() == "properties":
|
||
|
|
var prop_data = parse_properties(parser)
|
||
|
|
if typeof(prop_data) == TYPE_STRING:
|
||
|
|
return prop_data
|
||
|
|
|
||
|
|
data.properties = prop_data.properties
|
||
|
|
data.propertytypes = prop_data.propertytypes
|
||
|
|
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
return data
|
||
|
|
|
||
|
|
# Parses an object layer from the XML and return a dictionary
|
||
|
|
# Returns an error code if fails
|
||
|
|
func parse_object_layer(parser):
|
||
|
|
var err = OK
|
||
|
|
var data = attributes_to_dict(parser)
|
||
|
|
data.type = "objectgroup"
|
||
|
|
data.objects = []
|
||
|
|
|
||
|
|
if not parser.is_empty():
|
||
|
|
err = parser.read()
|
||
|
|
while err == OK:
|
||
|
|
if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
|
||
|
|
if parser.get_node_name() == "objectgroup":
|
||
|
|
break
|
||
|
|
if parser.get_node_type() == XMLParser.NODE_ELEMENT:
|
||
|
|
if parser.get_node_name() == "object":
|
||
|
|
data.objects.push_back(parse_object(parser))
|
||
|
|
elif parser.get_node_name() == "properties":
|
||
|
|
var prop_data = parse_properties(parser)
|
||
|
|
if typeof(prop_data) != TYPE_DICTIONARY:
|
||
|
|
# Error happened
|
||
|
|
return prop_data
|
||
|
|
data.properties = prop_data.properties
|
||
|
|
data.propertytypes = prop_data.propertytypes
|
||
|
|
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
return data
|
||
|
|
|
||
|
|
# Parses an image layer from the XML and return a dictionary
|
||
|
|
# Returns an error code if fails
|
||
|
|
func parse_image_layer(parser):
|
||
|
|
var err = OK
|
||
|
|
var data = attributes_to_dict(parser)
|
||
|
|
data.type = "imagelayer"
|
||
|
|
data.image = ""
|
||
|
|
|
||
|
|
if not parser.is_empty():
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
while err == OK:
|
||
|
|
if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
|
||
|
|
if parser.get_node_name().to_lower() == "imagelayer":
|
||
|
|
break
|
||
|
|
elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
|
||
|
|
if parser.get_node_name().to_lower() == "image":
|
||
|
|
var image = attributes_to_dict(parser)
|
||
|
|
if not image.has("source"):
|
||
|
|
printerr("Missing source attribute in imagelayer (around line %d)." % [parser.get_current_line()])
|
||
|
|
return ERR_INVALID_DATA
|
||
|
|
data.image = image.source
|
||
|
|
|
||
|
|
elif parser.get_node_name() == "properties":
|
||
|
|
var prop_data = parse_properties(parser)
|
||
|
|
if typeof(prop_data) != TYPE_DICTIONARY:
|
||
|
|
# Error happened
|
||
|
|
return prop_data
|
||
|
|
data.properties = prop_data.properties
|
||
|
|
data.propertytypes = prop_data.propertytypes
|
||
|
|
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
return data
|
||
|
|
|
||
|
|
# Parses a group layer from the XML and return a dictionary
|
||
|
|
# Returns an error code if fails
|
||
|
|
func parse_group_layer(parser, infinite):
|
||
|
|
var err = OK
|
||
|
|
var result = attributes_to_dict(parser)
|
||
|
|
result.type = "group"
|
||
|
|
result.layers = []
|
||
|
|
|
||
|
|
if not parser.is_empty():
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
while err == OK:
|
||
|
|
if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
|
||
|
|
if parser.get_node_name().to_lower() == "group":
|
||
|
|
break
|
||
|
|
elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
|
||
|
|
if parser.get_node_name() == "layer":
|
||
|
|
var layer = parse_tile_layer(parser, infinite)
|
||
|
|
if typeof(layer) != TYPE_DICTIONARY:
|
||
|
|
printerr("Error parsing TMX file. Invalid tile layer data (around line %d)." % [parser.get_current_line()])
|
||
|
|
return ERR_INVALID_DATA
|
||
|
|
result.layers.push_back(layer)
|
||
|
|
|
||
|
|
elif parser.get_node_name() == "imagelayer":
|
||
|
|
var layer = parse_image_layer(parser)
|
||
|
|
if typeof(layer) != TYPE_DICTIONARY:
|
||
|
|
printerr("Error parsing TMX file. Invalid image layer data (around line %d)." % [parser.get_current_line()])
|
||
|
|
return ERR_INVALID_DATA
|
||
|
|
result.layers.push_back(layer)
|
||
|
|
|
||
|
|
elif parser.get_node_name() == "objectgroup":
|
||
|
|
var layer = parse_object_layer(parser)
|
||
|
|
if typeof(layer) != TYPE_DICTIONARY:
|
||
|
|
printerr("Error parsing TMX file. Invalid object layer data (around line %d)." % [parser.get_current_line()])
|
||
|
|
return ERR_INVALID_DATA
|
||
|
|
result.layers.push_back(layer)
|
||
|
|
|
||
|
|
elif parser.get_node_name() == "group":
|
||
|
|
var layer = parse_group_layer(parser, infinite)
|
||
|
|
if typeof(layer) != TYPE_DICTIONARY:
|
||
|
|
printerr("Error parsing TMX file. Invalid group layer data (around line %d)." % [parser.get_current_line()])
|
||
|
|
return ERR_INVALID_DATA
|
||
|
|
result.layers.push_back(layer)
|
||
|
|
|
||
|
|
elif parser.get_node_name() == "properties":
|
||
|
|
var prop_data = parse_properties(parser)
|
||
|
|
if typeof(prop_data) == TYPE_STRING:
|
||
|
|
return prop_data
|
||
|
|
|
||
|
|
result.properties = prop_data.properties
|
||
|
|
result.propertytypes = prop_data.propertytypes
|
||
|
|
|
||
|
|
err = parser.read()
|
||
|
|
return result
|
||
|
|
|
||
|
|
# Parses properties data from the XML and return a dictionary
|
||
|
|
# Returns an error code if fails
|
||
|
|
static func parse_properties(parser):
|
||
|
|
var err = OK
|
||
|
|
var data = {
|
||
|
|
"properties": {},
|
||
|
|
"propertytypes": {},
|
||
|
|
}
|
||
|
|
|
||
|
|
if not parser.is_empty():
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
while err == OK:
|
||
|
|
if parser.get_node_type() == XMLParser.NODE_ELEMENT_END:
|
||
|
|
if parser.get_node_name() == "properties":
|
||
|
|
break
|
||
|
|
elif parser.get_node_type() == XMLParser.NODE_ELEMENT:
|
||
|
|
if parser.get_node_name() == "property":
|
||
|
|
var prop_data = attributes_to_dict(parser)
|
||
|
|
if not (prop_data.has("name") and prop_data.has("value")):
|
||
|
|
printerr("Missing information in custom properties (around line %d)." % [parser.get_current_line()])
|
||
|
|
return ERR_INVALID_DATA
|
||
|
|
|
||
|
|
data.properties[prop_data.name] = prop_data.value
|
||
|
|
if prop_data.has("type"):
|
||
|
|
data.propertytypes[prop_data.name] = prop_data.type
|
||
|
|
else:
|
||
|
|
data.propertytypes[prop_data.name] = "string"
|
||
|
|
|
||
|
|
err = parser.read()
|
||
|
|
|
||
|
|
return data
|
||
|
|
|
||
|
|
# Reads the attributes of the current element and return them as a dictionary
|
||
|
|
static func attributes_to_dict(parser):
|
||
|
|
var data = {}
|
||
|
|
for i in range(parser.get_attribute_count()):
|
||
|
|
var attr = parser.get_attribute_name(i)
|
||
|
|
var val = parser.get_attribute_value(i)
|
||
|
|
if val.is_valid_integer():
|
||
|
|
val = int(val)
|
||
|
|
elif val.is_valid_float():
|
||
|
|
val = float(val)
|
||
|
|
elif val == "true":
|
||
|
|
val = true
|
||
|
|
elif val == "false":
|
||
|
|
val = false
|
||
|
|
data[attr] = val
|
||
|
|
return data
|