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PhoenixIllusion/parse-grid-map.js

Created September 3, 2024 16:14
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Godot: Parse the packed data of a GridMap
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parse-grid-map.js
const data = new Uint32Array([65531, 65528, 0, 65531, 65529, 0, 65531, 65530, 0, 65531, 65531, 0, 65531, 65532, 0, 65531, 65533, 0, 65531, 65534, 0, 65531, 65535, 0, 65531, 0, 0, 65531, 1, 0, 65531, 2, 0, 65531, 3, 0, 65531, 4, 0, 65531, 5, 0, 65531, 6, 0, 65532, 65528, 0, 65532, 65529, 0, 65532, 65530, 0, 65532, 65531, 0, 65532, 65532, 0, 65532, 65533, 0, 65532, 65534, 0, 65532, 65535, 0, 65532, 0, 0, 65532, 1, 0, 65532, 2, 0, 65532, 3, 0, 65532, 4, 0, 65532, 5, 0, 65532, 6, 0, 65533, 65528, 0, 65533, 65529, 0, 65533, 65530, 0, 65533, 65531, 0, 65533, 65532, 0, 65533, 65533, 0, 65533, 65534, 0, 65533, 65535, 0, 65533, 0, 0, 65533, 1, 0, 65533, 2, 0, 65533, 3, 0, 65533, 4, 0, 65533, 5, 0, 65533, 6, 0, 65534, 65528, 0, 65534, 65529, 0, 65534, 65530, 0, 65534, 65531, 0, 65534, 65532, 0, 65534, 65533, 0, 65534, 65534, 0, 65534, 65535, 0, 65534, 0, 0, 65534, 1, 0, 65534, 2, 0, 65534, 3, 0, 65534, 4, 0, 65534, 5, 0, 65534, 6, 0, 65535, 65528, 0, 65535, 65529, 0, 65535, 65530, 0, 65535, 65531, 0, 65535, 65532, 0, 65535, 65533, 0, 65535, 65534, 0, 65535, 65535, 0, 65535, 0, 0, 65535, 1, 0, 65535, 2, 0, 65535, 3, 0, 65535, 4, 0, 65535, 5, 0, 65535, 6, 0, 0, 65528, 0, 0, 65529, 0, 0, 65530, 0, 0, 65531, 0, 0, 65532, 0, 0, 65533, 0, 0, 65534, 0, 0, 65535, 0, 0, 0, 0, 0, 1, 0, 0, 2, 0, 0, 3, 0, 0, 4, 0, 0, 5, 0, 0, 6, 0, 1, 65528, 0, 1, 65529, 0, 1, 65530, 0, 1, 65531, 0, 1, 65532, 0, 1, 65533, 0, 1, 65534, 0, 1, 65535, 0, 1, 0, 0, 1, 1, 0, 1, 2, 0, 1, 3, 0, 1, 4, 0, 1, 5, 0, 1, 6, 0, 2, 65528, 0, 2, 65529, 0, 2, 65530, 0, 2, 65531, 0, 2, 65532, 0, 2, 65533, 0, 2, 65534, 0, 2, 65535, 0, 2, 0, 0, 2, 1, 0, 2, 2, 0, 2, 3, 0, 2, 4, 0, 2, 5, 0, 2, 6, 0, 3, 65528, 0, 3, 65529, 0, 3, 65530, 0, 3, 65531, 0, 3, 65532, 0, 3, 65533, 0, 3, 65534, 0, 3, 65535, 0, 3, 0, 0, 3, 1, 0, 3, 2, 0, 3, 3, 0, 3, 4, 0, 3, 5, 0, 3, 6, 0, 4, 65528, 0, 4, 65529, 0, 4, 65530, 0, 4, 65531, 0, 4, 65532, 0, 4, 65533, 0, 4, 65534, 0, 4, 65535, 0, 4, 0, 0, 4, 1, 0, 4, 2, 0, 4, 3, 0, 4, 4, 0, 4, 5, 0, 4, 6, 0, 5, 65528, 0, 5, 65529, 0, 5, 65530, 0, 5, 65531, 0, 5, 65532, 0, 5, 65533, 0, 5, 65534, 0, 5, 65535, 0, 5, 0, 0, 5, 1, 0, 5, 2, 0, 5, 3, 0, 5, 4, 0, 5, 5, 0, 5, 6, 0, 6, 65528, 0, 6, 65529, 0, 6, 65530, 0, 6, 65531, 0, 6, 65532, 0, 6, 65533, 0, 6, 65534, 0, 6, 65535, 0, 6, 0, 0, 6, 1, 0, 6, 2, 0, 6, 3, 0, 6, 4, 0, 6, 5, 0, 6, 6, 0, 7, 65528, 1441796, 7, 65529, 1441796, 7, 65530, 1441796, 7, 65531, 1441796, 7, 65532, 1441796, 7, 65533, 1441796, 7, 65534, 1441796, 7, 65535, 1441796, 7, 0, 1441796, 7, 1, 1441796, 7, 2, 1441796, 7, 3, 1441796, 7, 4, 1441796, 7, 5, 1441796, 7, 6, 1441796, 65532, 7, 4, 65533, 7, 4, 65534, 7, 4, 65535, 7, 4, 0, 7, 4, 1, 7, 4, 2, 7, 4, 3, 7, 4, 4, 7, 4, 5, 7, 4, 6, 7, 4, 65530, 65528, 1441796, 65530, 65529, 1441796, 65530, 65530, 1441796, 65530, 65531, 1441796, 65530, 65532, 1441796, 65530, 65533, 1441796, 65530, 65534, 1441796, 65530, 65535, 1441796, 65530, 0, 1441796, 65530, 1, 1441796, 65530, 2, 1441796, 65530, 3, 1441796, 65530, 4, 1441796, 65530, 5, 1441796, 65530, 6, 1441796, 65531, 7, 4, 65531, 65527, 4, 65532, 65527, 4, 65533, 65527, 4, 65534, 65527, 4, 65535, 65527, 4, 0, 65527, 4, 1, 65527, 4, 2, 65527, 4, 3, 65527, 4, 4, 65527, 4, 5, 65527, 4, 6, 65527, 4, 7, 7, 1048579, 65530, 7, 3, 7, 65527, 655363, 65530, 65527, 1441795, 131079, 2, 655363, 65543, 5, 655363]);
const dataView = new DataView(data.buffer);
/**
Parses the Key of a GridView element
@param {number} idx
@param {DataView} dataView
*/
function parseKey(idx, dataView) {
return {
x: dataView.getInt16(idx, true),
y: dataView.getInt16(idx + 2, true),
z: dataView.getInt16(idx + 4, true),
}
}
/**
Parses the Key of a GridView element
@param {number} idx
@param {DataView} dataView
*/
function parseCell(idx, dataView) {
const part = dataView.getUint16(idx + 2, true);
return {
item: dataView.getUint16(idx, true),
rot: part & 0x1F,
layer: part >> 5
}
}
for(let i=0; i< dataView.byteLength / 12; i+= 1) {
const key = parseKey(i * 12, dataView);
const cell = parseCell(i * 12 + 8, dataView);
console.log({key, cell});
}
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