I upgraded unity-spine to 3.8, my existing Spine .JSON files (3.6) were not loading anymore inside Unity and the artist who made them was not available to re-export them (20-30 files).
To fix that, I made a small CLI PHP script that work good enough for me, It's a quick 30 minutes hack but It could work for you too, here is the code, for me it was a huge time saver:
<?php
set_time_limit(0);
function convert_file($file_input) {
if (!file_exists("input/".$file_input)) {
die("File not found!\r\n");
}
$data = json_decode(file_get_contents("input/".$file_input));
$data->skeleton->spine = "3.8.91";
$skins = $data->skins;
$new_skins = [];
// Fix to skins
foreach($skins as $key => $value) {
$item = [];
$item["name"] = $key;
$item["attachments"] = [];
foreach($value as $k => $v) {
$item["attachments"][$k] = $v;
}
$new_skins[] = $item;
}
$data->skins = $new_skins;
$animations = $data->animations;
foreach($animations as $key => &$value) {
foreach($value as $k => &$v) {
foreach($v as $k2 => &$v2) {
foreach($v2 as $k3 => &$v3) {
if (!is_array($v3)) continue;
for($i=0;$i<count($v3);$i++) {
if (is_array($v3[$i])) continue;
if (isset($v3[$i]->curve)) {
$c = $v3[$i]->curve;
$v3[$i]->curve = $c[0];
$v3[$i]->c2 = $c[1];
$v3[$i]->c3 = $c[2];
$v3[$i]->c4 = $c[3];
}
}
}
}
}
}
$data->animations = $animations;
$fd = fopen("output/".$file_input, "w");
fwrite($fd, json_encode($data, JSON_PRETTY_PRINT));
fclose($fd);
}
$dir = opendir("input");
while($file = readdir($dir)) {
if ($file[0] == ".") continue;
if (!is_file("input/".$file)) continue;
if (strpos($file,".json") === false) continue;
print "Processing file: ".$file." ...\r\n";
convert_file($file);
}
print("Done.\r\n");
To run it, you need to create 2 sub-directories ("input" and "output"), then when the script runs he convert all JSON files inside the "input" directory and generate the fixed JSON files in "output" directory.
