{"id":22300751,"url":"https://github.com/paladin-t/beparticles","last_synced_at":"2025-10-11T01:44:57.070Z","repository":{"id":77919106,"uuid":"399471967","full_name":"paladin-t/beparticles","owner":"paladin-t","description":"A particle system for Bitty Engine.","archived":false,"fork":false,"pushed_at":"2022-01-01T03:26:05.000Z","size":2439,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-03-25T23:32:40.919Z","etag":null,"topics":["bitty","bitty-engine","lua","particle-effects","particle-system","particles","pico-8"],"latest_commit_sha":null,"homepage":"https://paladin-t.github.io/beparticles/","language":"Lua","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/paladin-t.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2021-08-24T13:16:45.000Z","updated_at":"2022-02-14T08:59:23.000Z","dependencies_parsed_at":"2023-02-27T22:00:36.426Z","dependency_job_id":null,"html_url":"https://github.com/paladin-t/beparticles","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/paladin-t/beparticles","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/paladin-t%2Fbeparticles","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/paladin-t%2Fbeparticles/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/paladin-t%2Fbeparticles/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/paladin-t%2Fbeparticles/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/paladin-t","download_url":"https://codeload.github.com/paladin-t/beparticles/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/paladin-t%2Fbeparticles/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":279005939,"owners_count":26083986,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-10-10T02:00:06.843Z","response_time":62,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["bitty","bitty-engine","lua","particle-effects","particle-system","particles","pico-8"],"created_at":"2024-12-03T18:13:50.458Z","updated_at":"2025-10-11T01:44:57.043Z","avatar_url":"https://github.com/paladin-t.png","language":"Lua","readme":"# beParticles\n\nbeParticles is a particle system implemented in pure Lua for [Bitty Engine](https://github.com/paladin-t/bitty/). It is ported from [MaxwellDexter/pico-ps](https://github.com/MaxwellDexter/pico-ps).\n\nThe idea is to port the original PICO-8 implementation to Bitty Engine in as few modification as possible, it is done with an extended Luax to regular Lua compiler and a compatibility layer. It makes it easy to synchronize with future version.\n\nTry it out [in browser](https://paladin-t.github.io/beparticles/).\n\n### Features\n\n\"beParticles\" implements:\n\n* Continuous emissions (default)\n* Burst emissions\n* Gravity\n* Random colors\n* Speed over lifetime and speed spread\n* Life spread\n* Angles and angle spread\n* Size over lifetime and size spread\n* Emission areas\n* Color over life\n* Sprite animation\n* Random sprites\n* Object Pooling\n\n### Glance\n\nPlay [in browser](https://paladin-t.github.io/beparticles/).\n\n![](imgs/beParticles1.gif)\n\n![](imgs/beParticles2.gif)\n\n![](imgs/beParticles3.gif)\n\n### Usage\n\nSetup:\n\n1. Clone this repository or download from [releases](https://github.com/paladin-t/beparticles/releases)\n2. Open \"src\" directly or import it to your own projects with [Bitty Engine](https://github.com/paladin-t/bitty/)\n3. See code and comments for details\n\nCode:\n\nSee [MaxwellDexter/pico-ps](https://github.com/MaxwellDexter/pico-ps) for details.\n\nNote:\n\nBitty Engine uses the standard Lua coordinates where rotation angle starts from X+ and grows clockwise, with range of values from `0` to `2 * PI`.\n\n![](imgs/polar1.png)\n\nbeParticles (pico-ps) starts from X+ but grows anticlockwise, with range of values from `0.0` to `1.0`.\n\n![](imgs/polar2.png)\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpaladin-t%2Fbeparticles","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpaladin-t%2Fbeparticles","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpaladin-t%2Fbeparticles/lists"}