{"id":99846,"date":"2026-06-05T20:42:51","date_gmt":"2026-06-05T17:42:51","guid":{"rendered":"https:\/\/vpesports.com\/minecraft\/mods\/mecha-api\/"},"modified":"2026-06-05T20:42:51","modified_gmt":"2026-06-05T17:42:51","slug":"mecha-api","status":"publish","type":"mod","link":"https:\/\/vpesports.com\/minecraft\/mods\/mecha-api\/","title":{"rendered":"MECHA &#8211; Multiple Entity Collision Hitboxes API"},"content":{"rendered":"<p>A simple API for enabling custom entities to implement more than one collision box.<\/p>\n<p>## Setup<\/p>\n<p>Add the Modrinth Maven and the right version of the mod to your build.gradle file:<\/p>\n<p>&#8220;`gradle<br \/>\nrepositories {<br \/>\n\tmaven { url &#8216;https:\/\/api.modrinth.com\/maven&#8217; }<br \/>\n}<\/p>\n<p>dependencies {<br \/>\n\tmodImplementation &#8220;maven.modrinth:mecha-api:VERSION_GOES_HERE&#8221;<br \/>\n}<br \/>\n&#8220;`<\/p>\n<p>## Usage<\/p>\n<p>Implement `MultiCollidable` in your custom entity class, and override `getColliders` to add extra colliders to the entity.<\/p>\n<p>## Example<\/p>\n<p>The following example code adds 2 colliders to an entity, each the size of a slab:<\/p>\n<p>&#8220;`java<br \/>\npublic CustomEntity extends Entity implements MultiCollidable {<br \/>\n    public List<VoxelShape> getColliders() {<br \/>\n        List<VoxelShape> colliders = new ArrayList<>();<br \/>\n        BlockPos pos = this.blockPos();<br \/>\n        double x = pos.getX();<br \/>\n        double y = pos.getY();<br \/>\n        double z = pos.getZ();<br \/>\n        colliders.add(VoxelShapes.cuboid(x, y, z, x+1, y+0.5, z+1));<br \/>\n        colliders.add(VoxelShapes.cuboid(x, y+0.5, z, x+1, y+1, z+1));<br \/>\n        return colliders;<br \/>\n    }<br \/>\n}<br \/>\n&#8220;`<\/p>\n<p>For 0.1.2 and newer, there is now also a custom entity type, `DynamicBoundingBoxEntity`, which has a dynamic bounding box based on the list returned by `getColliders()`:<\/p>\n<p>&#8220;`java<br \/>\npublic CustomEntity extends DynamicBoundingBoxEntity {<br \/>\n    \/\/ The bounding box of this entity will dynamically resize<br \/>\n    \/\/ to fit the colliders returned by this function<br \/>\n    @Override<br \/>\n    public List<VoxelShape> getColliders() { &#8230; }<br \/>\n}<br \/>\n&#8220;`<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fabric API for implementing multiple collider hitboxes for a single entity<\/p>\n","protected":false},"featured_media":99847,"template":"","meta":{"_minecraft_slug":"mecha-api","_minecraft_project_id":"NiHIYi3S","_minecraft_author":"byteManiak","_minecraft_license":"MIT","_minecraft_downloads":1914,"_minecraft_follows":3,"_minecraft_client_side":"required","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"mecha-api.zip","_minecraft_size_bytes":42725,"_minecraft_version_count":5,"_minecraft_updated_at":"2026-05-16T02:20:10.052143Z","_minecraft_date_created":"2024-05-06T04:14:04.086995Z","_minecraft_date_modified":"2024-09-11T19:29:58.559545Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/mecha-api","_minecraft_icon_attachment_id":99847,"_minecraft_imported_at":"2026-06-05T17:42:52+00:00","_minecraft_import_hash":"b2ce110f970a42a2d2d91c94f64516dd","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[97,89,873,92],"mod_loader":[99],"minecraft_version":[58,59,36,60,93,94,101,102,62,37],"class_list":["post-99846","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-fabric","mod_category-game-mechanics","mod_category-library","mod_category-utility","mod_loader-fabric","minecraft_version-1-19-4","minecraft_version-1-20","minecraft_version-1-20-1","minecraft_version-1-20-2","minecraft_version-1-20-3","minecraft_version-1-20-4","minecraft_version-1-20-5","minecraft_version-1-20-6","minecraft_version-1-21","minecraft_version-1-21-1"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MECHA - Multiple Entity Collision Hitboxes API - Minecraft<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vpesports.com\/minecraft\/mods\/mecha-api\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MECHA - Multiple Entity Collision Hitboxes API - Minecraft\" \/>\n<meta property=\"og:description\" content=\"Fabric API for implementing multiple collider hitboxes for a single entity\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vpesports.com\/minecraft\/mods\/mecha-api\/\" \/>\n<meta property=\"og:site_name\" content=\"Minecraft\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/\",\"url\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/\",\"name\":\"MECHA - Multiple Entity Collision Hitboxes API - Minecraft\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/mecha-api-icon-6c348c07f9adabac24c84cd42d6c909e51bea51a.png\",\"datePublished\":\"2026-06-05T17:42:51+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/#primaryimage\",\"url\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/mecha-api-icon-6c348c07f9adabac24c84cd42d6c909e51bea51a.png\",\"contentUrl\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/mecha-api-icon-6c348c07f9adabac24c84cd42d6c909e51bea51a.png\",\"width\":140,\"height\":144},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/mecha-api\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Mods\",\"item\":\"https:\\\/\\\/vpesports.com\\\/minecraft\\\/mods\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"MECHA &#8211; 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