Gecko JS

Use GeckoLib to create animatable block/item/armor by KubeJS

Simple Example

Startup script

StartupEvents.registry("block", event => {
    const rotating = RawAnimation.begin().thenLoop("rotating");
    event.create("geckojs:example_block", "animatable")
        .box(1, 1, 1, 15, 15, 15, true)
        .animatableBlockEntity(blockEntity => {
            blockEntity.addAnimation(state => state.setAndContinue(rotating))
        })
        .defaultGeoModel()
})

Model assets/geckojs/geo/block/example_block.geo.json

{
    "format_version": "1.12.0",
    "minecraft:geometry": [
        {
            "description": {
                "identifier": "geometry.example_block",
                "texture_width": 48,
                "texture_height": 48,
                "visible_bounds_width": 3,
                "visible_bounds_height": 2.5,
                "visible_bounds_offset": [0, 0.75, 0]
            },
            "bones": [
                {
                    "name": "bone",
                    "pivot": [0, 8, 0],
                    "cubes": [
                        {
                            "origin": [-7, 1, -7],
                            "size": [14, 14, 14],
                            "uv": {
                                "north": {"uv": [0, 0], "uv_size": [14, 14]},
                                "east": {"uv": [0, 14], "uv_size": [14, 14]},
                                "south": {"uv": [14, 0], "uv_size": [14, 14]},
                                "west": {"uv": [14, 14], "uv_size": [14, 14]},
                                "up": {"uv": [0, 28], "uv_size": [14, 14]},
                                "down": {"uv": [28, 14], "uv_size": [14, -14]}
                            }
                        }
                    ]
                }
            ]
        }
    ]
}

Animation assets/geckojs/animations/block/example_block.animations.json

{
    "format_version": "1.8.0",
    "animations": {
        "rotating": {
            "loop": true,
            "animation_length": 3,
            "bones": {
                "bone": {
                    "rotation": {
                        "vector": ["Math.sin(query.anim_time*90)*180", "Math.cos(query.anim_time*90)*180", "Math.sin(query.anim_time*90)*180"]
                    }
                }
            }
        }
    },
    "geckolib_format_version": 2
}

Texture assets/geckojs/textures/block/example_block.png