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komali2

Using PIXI.js Loader on a JSON with base64 encoded image leads to empty Resource.spritesheet.animations property

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I have the following JSON output of a spritesheet building tool:

 

{
    "frames": {
        "Charge0.png": {
            "frame": {
                "x": 0,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "rotated": false,
            "trimmed": false,
            "spriteSourceSize": {
                "x": 0,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "sourceSize": {
                "w": 32,
                "h": 32
            }
        },
        "Charge1.png": {
            "frame": {
                "x": 32,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "rotated": false,
            "trimmed": false,
            "spriteSourceSize": {
                "x": 0,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "sourceSize": {
                "w": 32,
                "h": 32
            }
        },
        "Charge2.png": {
            "frame": {
                "x": 64,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "rotated": false,
            "trimmed": false,
            "spriteSourceSize": {
                "x": 0,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "sourceSize": {
                "w": 32,
                "h": 32
            }
        },
        "Charge3.png": {
            "frame": {
                "x": 96,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "rotated": false,
            "trimmed": false,
            "spriteSourceSize": {
                "x": 0,
                "y": 0,
                "w": 32,
                "h": 32
            },
            "sourceSize": {
                "w": 32,
                "h": 32
            }
        }
    },
    "meta": {
        "app": "https://github.com/piskelapp/piskel/",
        "version": "1.0",
        "image": "data:image/png;base64,iVBORw....(etc)",
        "format": "RGBA8888",
        "size": {
            "w": 128,
            "h": 32
        }
    }
}

I have the following code to load it:

 

    PIXI.Loader.shared
      .add('playerCharge', './assets/player-charge.json')
      .load((loader, resources) => {
        console.log(resources);
        //const animation = new PIXI.AnimatedSprite(resources.playerCharge.spritesheet.animations['image_sequence']);
        //console.log(animation);
      });
  }

According to the PIXIJS docs (which unfortunately don't give an example of what a valid JSON file should look like) https://pixijs.download/dev/docs/PIXI.AnimatedSprite.html , the resources instance (playerCharge) should have a spritesheet.animations property with some sort of named property in it. It does not. The animations object is empty. Therefore, I can't pass anything to AnimatedSprite.

 

What's the right way to use this? Seems the only way is to manually iterate through the spritesheet.textures object, which is, strangely, populated.

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There's no defined animations in that json. They have to be defined in TexturePacker itself.


If you cant define it in editor, or you dont find what is json format for them, you have to use the code from pixijs example to convertt textures for animation.

 

https://pixijs.download/dev/docs/packages_spritesheet_src_Spritesheet.js.html#line260

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