eucaengine

分类: 工具与效率 | 上传者: stainlu | 下载: 0 | 版本: v1.0（最新）

ECS 优先、代理原生 Rust 游戏引擎

更新日志: Source: GitHub https://github.com/stainlu/euca-engine

目录结构

当前层级: tree/main/

📁 .claude/
- 📁 projects/
  - 📁 -Users-stainlu-claude-project-unreal/
    
    📁 memory/
    
    📄 feedback_git_workflow.md 568 B
📁 .github/
- 📁 workflows/
  - 📄 ci.yml 2.1 KB
  - 📄 release.yml 1.6 KB
📁 benches/
- 📄 ecs_bench.rs 24.3 KB
📁 crates/
- 📁 euca-agent/
  - 📁 src/
    
    📁 routes/
    
    📄 animation.rs 7.6 KB
    
    📄 assertions.rs 8.0 KB
    
    📄 asset_gen.rs 12.9 KB
    
    📄 audio.rs 4.0 KB
    
    📄 camera.rs 4.7 KB
    
    📄 debug.rs 9.4 KB
    
    📄 entity.rs 20.6 KB
    
    📄 fog.rs 2.8 KB
    
    📄 foliage.rs 3.3 KB
    
    📄 gameplay.rs 15.7 KB
    
    📄 gpu.rs 608 B
    
    📄 hero.rs 7.8 KB
    
    📄 input.rs 4.5 KB
    
    📄 inventory.rs 7.1 KB
    
    📄 level.rs 25.1 KB
    
    📄 manifest.rs 7.3 KB
    
    📄 material.rs 2.5 KB
    
    📄 mod.rs 35.5 KB
    
    📄 nav.rs 4.6 KB
    
    📄 net.rs 2.5 KB
    
    📄 particle.rs 3.1 KB
    
    📄 postprocess.rs 4.6 KB
    
    📄 prefab.rs 2.3 KB
    
    📄 probe.rs 3.5 KB
    
    📄 profile.rs 2.3 KB
    
    📄 scene_auth.rs 7.2 KB
    
    📄 script.rs 3.0 KB
    
    📄 shop.rs 2.7 KB
    
    📄 sim.rs 1.3 KB
    
    📄 snapshot.rs 12.8 KB
    
    📄 status_effects.rs 6.5 KB
    
    📄 templates.rs 7.0 KB
    
    📄 terrain.rs 3.9 KB
    
    📄 ui.rs 1.8 KB
    
    📄 auth.rs 4.2 KB
    
    📄 bridge.rs 7.6 KB
    
    📄 control.rs 2.9 KB
    
    📄 hud.rs 2.3 KB
    
    📄 lib.rs 357 B
    
    📄 server.rs 8.9 KB
    
    📄 state.rs 371 B
  - 📁 tests/
    
    📄 api_integration.rs 7.2 KB
  - 📄 Cargo.toml 1.5 KB
  - 📄 README.md 998 B
- 📁 euca-ai/
  - 📁 src/
    
    📄 blackboard.rs 4.9 KB
    
    📄 builder.rs 6.1 KB
    
    📄 executor.rs 17.5 KB
    
    📄 lib.rs 985 B
    
    📄 node.rs 3.8 KB
    
    📄 system.rs 2.1 KB
  - 📄 Cargo.toml 444 B
  - 📄 README.md 1.1 KB
- 📁 euca-animation/
  - 📁 benches/
    
    📄 animation_bench.rs 7.5 KB
  - 📁 src/
    
    📄 blend.rs 10.5 KB
    
    📄 blend_space.rs 9.5 KB
    
    📄 clip.rs 7.2 KB
    
    📄 event.rs 6.1 KB
    
    📄 ik.rs 27.0 KB
    
    📄 lib.rs 2.4 KB
    
    📄 montage.rs 7.6 KB
    
    📄 root_motion.rs 7.3 KB
    
    📄 state_machine.rs 16.6 KB
    
    📄 system.rs 12.0 KB
    
    📄 systems.rs 18.9 KB
  - 📄 Cargo.toml 635 B
  - 📄 README.md 1.1 KB
- 📁 euca-asset/
  - 📁 src/
    
    📁 ai_gen/
    
    📄 hunyuan.rs 13.1 KB
    
    📄 meshy.rs 9.6 KB
    
    📄 mod.rs 2.9 KB
    
    📄 rodin.rs 11.3 KB
    
    📄 service.rs 20.0 KB
    
    📄 tripo.rs 8.0 KB
    
    📄 animation.rs 7.1 KB
    
    📄 gltf_loader.rs 19.5 KB
    
    📄 hot_reload.rs 4.9 KB
    
    📄 lib.rs 769 B
    
    📄 loader.rs 5.4 KB
    
    📄 lod.rs 10.7 KB
    
    📄 mesh_opt.rs 8.2 KB
    
    📄 skeleton.rs 4.4 KB
    
    📄 systems.rs 5.4 KB
  - 📁 tests/
    
    📄 ai_gen_integration.rs 7.5 KB
  - 📄 Cargo.toml 853 B
  - 📄 README.md 986 B
- 📁 euca-audio/
  - 📁 src/
    
    📄 engine.rs 5.0 KB
    
    📄 lib.rs 1.2 KB
    
    📄 reverb.rs 6.1 KB
    
    📄 source.rs 9.0 KB
    
    📄 systems.rs 10.5 KB
  - 📄 Cargo.toml 496 B
  - 📄 README.md 1016 B
- 📁 euca-core/
  - 📁 src/
    
    📄 app.rs 6.2 KB
    
    📄 lib.rs 458 B
    
    📄 platform.rs 2.0 KB
    
    📄 plugin.rs 398 B
    
    📄 profiler.rs 7.2 KB
    
    📄 time.rs 1.2 KB
  - 📄 Cargo.toml 467 B
  - 📄 README.md 644 B
- 📁 euca-ecs/
  - 📁 benches/
    
    📄 ecs_bench.rs 15.5 KB
  - 📁 src/
    
    📄 archetype.rs 15.6 KB
    
    📄 command.rs 5.2 KB
    
    📄 component.rs 5.2 KB
    
    📄 entity.rs 5.9 KB
    
    📄 event.rs 4.2 KB
    
    📄 lib.rs 1.1 KB
    
    📄 lock_util.rs 864 B
    
    📄 query.rs 34.8 KB
    
    📄 resource.rs 2.8 KB
    
    📄 schedule.rs 34.5 KB
    
    📄 shared.rs 5.6 KB
    
    📄 snapshot.rs 4.2 KB
    
    📄 sparse.rs 11.2 KB
    
    📄 system.rs 4.4 KB
    
    📄 system_param.rs 4.4 KB
    
    📄 world.rs 29.3 KB
  - 📄 Cargo.toml 721 B
  - 📄 README.md 1.1 KB
- 📁 euca-editor/
  - 📁 src/
    
    📄 gizmo.rs 14.0 KB
    
    📄 lib.rs 7.2 KB
    
    📄 panels.rs 15.4 KB
    
    📄 scene_file.rs 10.7 KB
    
    📄 undo.rs 8.3 KB
  - 📄 Cargo.toml 1.2 KB
  - 📄 README.md 1.1 KB
- 📁 euca-game/
  - 📁 benches/
    
    📄 engine_bench.rs 6.0 KB
  - 📁 src/
    
    📄 arena.rs 7.0 KB
    
    📄 lib.rs 284 B
    
    📄 main.rs 21.1 KB
    
    📄 project.rs 4.7 KB
  - 📄 Cargo.toml 1.4 KB
  - 📄 README.md 682 B
- 📁 euca-gameplay/
  - 📁 src/
    
    📄 abilities.rs 53.4 KB
    
    📄 ai.rs 7.1 KB
    
    📄 assertions.rs 35.3 KB
    
    📄 attributes.rs 17.3 KB
    
    📄 building.rs 16.7 KB
    
    📄 building_systems.rs 20.3 KB
    
    📄 camera.rs 19.8 KB
    
    📄 cleanup.rs 6.0 KB
    
    📄 combat.rs 33.5 KB
    
    📄 combat_math.rs 12.4 KB
    
    📄 creep_wave.rs 21.9 KB
    
    📄 crowd_control.rs 21.3 KB
    
    📄 data_table.rs 3.8 KB
    
    📄 economy.rs 21.5 KB
    
    📄 fog_of_war.rs 21.9 KB
    
    📄 game_state.rs 6.6 KB
    
    📄 health.rs 20.3 KB
    
    📄 hero.rs 7.6 KB
    
    📄 inventory.rs 12.0 KB
    
    📄 item_active.rs 24.0 KB
    
    📄 leveling.rs 13.6 KB
    
    📄 lib.rs 9.5 KB
    
    📄 neutral_camp.rs 11.0 KB
    
    📄 player.rs 21.5 KB
    
    📄 player_input.rs 16.1 KB
    
    📄 replay.rs 12.5 KB
    
    📄 roshan.rs 33.5 KB
    
    📄 rules.rs 37.4 KB
    
    📄 shop.rs 12.0 KB
    
    📄 stats.rs 11.5 KB
    
    📄 status_effects.rs 16.4 KB
    
    📄 teams.rs 6.3 KB
    
    📄 tilemap.rs 18.8 KB
    
    📄 tower_aggro.rs 5.2 KB
    
    📄 triggers.rs 7.4 KB
    
    📄 turns.rs 15.7 KB
    
    📄 visibility.rs 18.9 KB
    
    📄 zones.rs 26.8 KB
  - 📁 tests/
    
    📄 integration.rs 17.9 KB
  - 📄 Cargo.toml 659 B
  - 📄 README.md 1.1 KB
- 📁 euca-input/
  - 📁 src/
    
    📄 lib.rs 13.5 KB
  - 📄 Cargo.toml 353 B
  - 📄 README.md 1.0 KB
- 📁 euca-math/
  - 📁 benches/
    
    📄 math_bench.rs 8.7 KB
  - 📁 src/
    
    📄 aabb.rs 3.9 KB
    
    📄 lib.rs 1.2 KB
    
    📄 mat.rs 14.6 KB
    
    📄 quat.rs 12.0 KB
    
    📄 reflect_impls.rs 2.1 KB
    
    📄 simd.rs 12.1 KB
    
    📄 transform.rs 8.4 KB
    
    📄 vec.rs 17.6 KB
  - 📄 Cargo.toml 721 B
  - 📄 README.md 926 B
- 📁 euca-nav/
  - 📁 src/
    
    📄 level_nav.rs 7.3 KB
    
    📄 lib.rs 956 B
    
    📄 navmesh.rs 10.1 KB
    
    📄 pathfinding.rs 6.3 KB
    
    📄 rvo.rs 7.0 KB
    
    📄 steering.rs 6.4 KB
  - 📄 Cargo.toml 505 B
  - 📄 README.md 996 B
- 📁 euca-net/
  - 📁 benches/
    
    📄 net_bench.rs 6.4 KB
  - 📁 src/
    
    📄 bandwidth.rs 5.0 KB
    
    📄 client.rs 6.4 KB
    
    📄 interest.rs 16.1 KB
    
    📄 lib.rs 1.5 KB
    
    📄 prediction.rs 12.3 KB
    
    📄 protocol.rs 3.3 KB
    
    📄 quic_transport.rs 10.2 KB
    
    📄 replication.rs 52.6 KB
    
    📄 server.rs 6.7 KB
    
    📄 tick_rate.rs 2.8 KB
    
    📄 transport.rs 7.1 KB
  - 📄 Cargo.toml 848 B
  - 📄 README.md 1.1 KB
- 📁 euca-particle/
  - 📁 src/
    
    📄 lib.rs 12.5 KB
    
    📄 render.rs 19.1 KB
  - 📄 Cargo.toml 466 B
  - 📄 README.md 1012 B
- 📁 euca-physics/
  - 📁 benches/
    
    📄 physics_bench.rs 10.7 KB
  - 📁 src/
    
    📄 character.rs 9.5 KB
    
    📄 collision.rs 12.4 KB
    
    📄 components.rs 7.0 KB
    
    📄 frame_cache.rs 2.8 KB
    
    📄 gpu_broadphase.rs 10.2 KB
    
    📄 joints.rs 7.1 KB
    
    📄 lib.rs 1.3 KB
    
    📄 raycast.rs 17.2 KB
    
    📄 systems.rs 49.1 KB
    
    📄 vehicle.rs 30.1 KB
    
    📄 world.rs 1.3 KB
  - 📄 Cargo.toml 1.0 KB
  - 📄 README.md 987 B
- 📁 euca-reflect/
  - 📁 src/
    
    📄 lib.rs 8.1 KB
  - 📄 Cargo.toml 483 B
  - 📄 README.md 874 B
- 📁 euca-reflect-derive/
  - 📁 src/
    
    📄 lib.rs 6.8 KB
  - 📄 Cargo.toml 404 B
  - 📄 README.md 786 B
- 📁 euca-render/
  - 📁 benches/
    
    📄 render_bench.rs 6.3 KB
  - 📁 shaders/
    
    📁 metal/
    
    📄 fullscreen_vs.metal 586 B
    
    📄 pbr.metal 21.2 KB
    
    📄 shadow.metal 1.4 KB
    
    📄 sky.metal 2.9 KB
    
    📄 brdf_lut.wgsl 3.8 KB
    
    📄 deferred_lighting.wgsl 4.0 KB
    
    📄 dof.wgsl 6.6 KB
    
    📄 foliage_cull.wgsl 3.1 KB
    
    📄 frustum_cull.wgsl 1.9 KB
    
    📄 fullscreen_vs.wgsl 401 B
    
    📄 gbuffer.wgsl 3.3 KB
    
    📄 gpu_cull.wgsl 4.3 KB
    
    📄 ibl_irradiance.wgsl 3.6 KB
    
    📄 ibl_specular.wgsl 4.2 KB
    
    📄 light_assign.wgsl 4.4 KB
    
    📄 meshlet_cull.wgsl 9.9 KB
    
    📄 motion_blur.wgsl 5.4 KB
    
    📄 particle_compute.wgsl 3.4 KB
    
    📄 particle_render.wgsl 2.5 KB
    
    📄 pbr.wgsl 20.0 KB
    
    📄 pbr_bindless.wgsl 18.3 KB
    
    📄 postprocess.wgsl 2.4 KB
    
    📄 pp_uniforms.wgsl 134 B
    
    📄 prepass.wgsl 1.7 KB
    
    📄 shadow.wgsl 667 B
    
    📄 sky.wgsl 2.1 KB
    
    📄 ssgi.wgsl 7.9 KB
    
    📄 ssr.wgsl 5.8 KB
    
    📄 ssr_composite.wgsl 1.0 KB
    
    📄 ssr_normals.wgsl 2.0 KB
    
    📄 taa_resolve.wgsl 5.6 KB
    
    📄 ui_quad.wgsl 1.3 KB
    
    📄 velocity.wgsl 1.9 KB
    
    📄 volumetric_fog.wgsl 4.3 KB
  - 📁 src/
    
    📄 bindless.rs 16.9 KB
    
    📄 buffer.rs 7.4 KB
    
    📄 camera.rs 10.7 KB
    
    📄 clustered.rs 18.3 KB
    
    📄 compute.rs 25.6 KB
    
    📄 creep_meshes.rs 17.5 KB
    
    📄 decal.rs 20.2 KB
    
    📄 deferred.rs 26.8 KB
    
    📄 dof.rs 18.9 KB
    
    📄 extract.rs 8.9 KB
    
    📄 foliage.rs 41.4 KB
    
    📄 frame_graph.rs 10.2 KB
    
    📄 geometry_pool.rs 13.8 KB
    
    📄 gpu.rs 9.0 KB
    
    📄 gpu_driven.rs 24.3 KB
    
    📄 gpu_particles.rs 18.2 KB
    
    📄 hardware.rs 13.6 KB
    
    📄 hlod.rs 14.0 KB
    
    📄 ibl.rs 27.9 KB
    
    📄 lib.rs 6.4 KB
    
    📄 light.rs 2.8 KB
    
    📄 light_probe.rs 7.6 KB
    
    📄 lod.rs 17.4 KB
    
    📄 material.rs 8.1 KB
    
    📄 mesh.rs 26.9 KB
    
    📄 meshlet.rs 23.7 KB
    
    📄 metal_hints.rs 20.3 KB
    
    📄 motion_blur.rs 17.0 KB
    
    📄 occlusion.rs 29.3 KB
    
    📄 plugin.rs 665 B
    
    📄 post_process.rs 56.8 KB
    
    📄 prepass.rs 16.2 KB
    
    📄 renderer.rs 107.7 KB
    
    📄 ssgi.rs 21.1 KB
    
    📄 ssr.rs 17.5 KB
    
    📄 taa.rs 16.2 KB
    
    📄 texture.rs 8.7 KB
    
    📄 ui_overlay.rs 7.4 KB
    
    📄 velocity.rs 19.6 KB
    
    📄 vertex.rs 2.9 KB
    
    📄 volumetric.rs 23.3 KB
  - 📁 tests/
    
    📄 shader_validation.rs 5.7 KB
  - 📄 Cargo.toml 2.0 KB
  - 📄 README.md 2.0 KB
- 📁 euca-rhi/
  - 📁 src/
    
    📄 lib.rs 4.6 KB
    
    📄 metal_backend.rs 75.2 KB
    
    📄 pass.rs 1.9 KB
    
    📄 types.rs 23.8 KB
    
    📄 wgpu_backend.rs 37.5 KB
  - 📁 tests/
    
    📄 metal_smoke.rs 11.4 KB
  - 📄 Cargo.toml 1.2 KB
- 📁 euca-scene/
  - 📁 src/
    
    📄 hierarchy.rs 341 B
    
    📄 lib.rs 9.5 KB
    
    📄 prefab.rs 10.1 KB
    
    📄 spatial.rs 10.1 KB
    
    📄 streaming.rs 18.0 KB
    
    📄 transform.rs 4.4 KB
  - 📄 Cargo.toml 467 B
  - 📄 README.md 967 B
- 📁 euca-script/
  - 📁 src/
    
    📄 ecs_api.rs 8.8 KB
    
    📄 engine.rs 13.2 KB
    
    📄 events.rs 3.4 KB
    
    📄 lib.rs 4.9 KB
    
    📄 watcher.rs 3.4 KB
  - 📄 Cargo.toml 722 B
  - 📄 README.md 1.1 KB
- 📁 euca-services/
  - 📁 src/
    
    📄 auth.rs 3.5 KB
    
    📄 error.rs 1.7 KB
    
    📄 http.rs 6.3 KB
    
    📄 lib.rs 658 B
    
    📄 realtime.rs 1.8 KB
    
    📄 session.rs 3.5 KB
  - 📄 Cargo.toml 1.1 KB
- 📁 euca-terrain/
  - 📁 shaders/
    
    📄 terrain_gen.wgsl 4.8 KB
  - 📁 src/
    
    📄 chunk.rs 6.4 KB
    
    📄 component.rs 2.3 KB
    
    📄 editing.rs 9.3 KB
    
    📄 gpu_terrain.rs 17.7 KB
    
    📄 heightmap.rs 7.9 KB
    
    📄 level_data.rs 21.4 KB
    
    📄 level_import.rs 15.1 KB
    
    📄 level_render.rs 12.1 KB
    
    📄 lib.rs 1.7 KB
    
    📄 lod.rs 4.2 KB
    
    📄 mesh.rs 5.8 KB
    
    📄 physics.rs 4.6 KB
    
    📄 splat.rs 2.6 KB
  - 📄 Cargo.toml 704 B
  - 📄 README.md 1.0 KB
- 📁 euca-ui/
  - 📁 src/
    
    📄 draw.rs 1.7 KB
    
    📄 input.rs 7.8 KB
    
    📄 layout.rs 28.1 KB
    
    📄 lib.rs 1.7 KB
    
    📄 node.rs 4.8 KB
    
    📄 widget.rs 4.9 KB
  - 📄 Cargo.toml 500 B
  - 📄 README.md 1.1 KB
📁 examples/
- 📄 agent_client.rs 3.3 KB
- 📄 agent_game.rs 14.1 KB
- 📄 client.rs 13.8 KB
- 📄 dota_client.rs 144.5 KB
- 📄 editor.rs 90.5 KB
- 📄 gltf_viewer.rs 7.4 KB
- 📄 headless_server.rs 3.8 KB
- 📄 hello_cubes.rs 5.9 KB
- 📄 metal_combined.rs 19.1 KB
- 📄 metal_cubes.rs 14.5 KB
- 📄 metal_fx_upscale.rs 21.2 KB
- 📄 metal_mesh_stress.rs 17.4 KB
- 📄 metal_stress.rs 18.6 KB
- 📄 physics_demo.rs 8.5 KB
- 📄 server.rs 8.9 KB
- 📄 stress_test.rs 11.8 KB
- 📄 texture_demo.rs 8.1 KB
📁 games/
- 📁 poker/
  - 📁 src/
    
    📄 betting.rs 16.0 KB
    
    📄 card.rs 4.1 KB
    
    📄 deck.rs 3.4 KB
    
    📄 hand.rs 17.2 KB
    
    📄 lib.rs 254 B
    
    📄 table.rs 19.8 KB
  - 📄 Cargo.toml 316 B
📁 levels/
- 📄 dota.json 11.3 KB
- 📄 moba.json 3.0 KB
📁 scripts/
- 📄 asset_gen_demo.sh 738 B
- 📄 dota.sh 11.3 KB
- 📄 moba.sh 2.4 KB
📁 services/
- 📁 matchmaking/
  - 📁 src/
    
    📄 lib.rs 21.6 KB
    
    📄 main.rs 10.4 KB
  - 📄 Cargo.toml 541 B
- 📁 poker-server/
  - 📁 src/
    
    📄 main.rs 10.2 KB
    
    📄 msg.rs 2.4 KB
    
    📄 poker.rs 28.6 KB
    
    📄 room.rs 9.8 KB
    
    📄 state.rs 374 B
    
    📄 ws.rs 5.6 KB
  - 📄 Cargo.toml 603 B
📁 tools/
- 📁 euca-cli/
  - 📁 src/
    
    📁 commands/
    
    📄 asset.rs 9.1 KB
    
    📄 discover.rs 4.9 KB
    
    📄 entity.rs 8.5 KB
    
    📄 mod.rs 94 B
    
    📄 package.rs 5.2 KB
    
    📄 main.rs 73.5 KB
  - 📄 Cargo.toml 669 B
  - 📄 README.md 977 B
📁 website/
- 📄 index.html 3.9 KB
- 📄 skill.md 15.6 KB
- 📄 style.css 2.3 KB
📄 .eucaproject.json 250 B
📄 .gitignore 57 B
📄 Cargo.lock 157.1 KB
📄 Cargo.toml 970 B
📄 CHANGELOG.md 18.7 KB
📄 DESIGN.md 19.7 KB
📄 GUIDE.md 9.2 KB
📄 level.json 2.9 KB
📄 LICENSE 1.0 KB
📄 LICENSE-APACHE 10.0 KB
📄 LICENSE-MIT 1.0 KB
📄 README.md 9.6 KB
📄 REVIEW.md 18.9 KB
📄 ROADMAP.md 15.4 KB
📄 run_dota.sh 100 B
📄 SKILL.md 20.8 KB
📄 SLIDES.md 7.6 KB
📄 TECH_REPORT.md 48.7 KB

SKILL.md

---
name: eucaengine
description: ECS-first, agent-native game engine in Rust
version: 0.9.2
auth: nit
protocol: cli
---

# EucaEngine — Agent Interface

EucaEngine is a game engine you control via the `euca` CLI. You interact with a live visual editor — create entities, set up game rules, run physics, control AI, add HUD elements, and take screenshots to verify your work.

## Quick Start

```bash
# 1. Start the engine (opens a window)
cargo run -p euca-editor --example editor

# 2. Check it's running
euca status

# 3. Create a game
euca game create --mode deathmatch --score-limit 5

# 4. Spawn fighters (--combat enables auto-detect, chase, melee attack)
euca entity create --mesh cube --position 0,2,0 --health 100 --team 1 --color red --combat --physics Dynamic --collider aabb:0.5,0.5,0.5
euca entity create --mesh sphere --position 3,2,0 --health 100 --team 2 --color blue --combat --physics Dynamic --collider sphere:0.5

# 5. Add HUD
euca ui text "DEATHMATCH" --x 0.5 --y 0.02 --size 28 --color yellow

# 6. Run simulation
euca sim play

# 7. Check results
euca game state
euca screenshot
```

## Command Reference

### Entity (CRUD + Combat)

```bash
# List / Get
euca entity list                              # All entities as JSON
euca entity get <id>                          # Single entity (health, team, transform, etc.)

# Create
euca entity create --mesh cube --position 0,2,0 --color red
euca entity create --mesh sphere --position 3,2,0 --physics Dynamic --collider sphere:0.5
euca entity create --mesh cube --position 0,1,0 --health 100 --team 1 --color red --combat --physics Dynamic --collider aabb:0.5,0.5,0.5
euca entity create --json '{"position": [1,2,3], "mesh": "cube", "color": "gold", "health": 50}'

# Update
euca entity update <id> --position 5,0,0
euca entity update <id> --color green
euca entity update <id> --velocity 0,10,0
euca entity update <id> --json '{"transform": {"position": [1,2,3]}}'

# Delete
euca entity delete <id>
euca entity delete --all

# Combat
euca entity damage <id> --amount 25           # Reduce health
euca entity heal <id> --amount 10             # Restore health

# Preview
euca entity create --position 1,2,3 --dry-run # Show what would be created
```

### Simulation

```bash
euca sim play                    # Start physics + gameplay systems
euca sim pause                   # Pause
euca sim step --ticks 10         # Advance N ticks
euca sim reset                   # Reset to initial scene
```

When simulation is playing, these systems run each tick:
physics -> damage -> death -> projectiles -> triggers -> AI -> auto_combat -> game state -> respawn

### Game Match

```bash
euca game create --mode deathmatch --score-limit 10
euca game state                  # Phase, scores, elapsed time
```

Game phases: lobby -> playing -> post_match (when score limit reached)

### Camera

```bash
# Preset views (orthographic — no perspective distortion)
euca camera view top              # Bird's-eye view
euca camera view front            # Front orthographic
euca camera view right            # Right side
euca camera view left             # Left side
euca camera view back             # Back
euca camera view perspective      # Reset to default 3D

# Focus on entity
euca camera focus <id>            # Center camera on entity

# Manual
euca camera set --eye 10,5,10 --target 0,0,0
euca camera set --fov 60
euca camera get                   # Current camera state
```

### Trigger Zones

```bash
euca trigger create --position 0,0,0 --zone 2,1,2 --action damage:10
euca trigger create --position 5,0,5 --zone 1,1,1 --action heal:5
```

Triggers fire when entities overlap the zone. Actions: `damage:N`, `heal:N`.

### Projectiles

```bash
euca projectile spawn --from 0,1,0 --direction 1,0,0 --speed 20 --damage 25
```

Projectiles move each tick, hit entities with Health (sphere collision r=0.5), apply DamageEvent, then despawn. Default lifetime: 3 seconds.

### AI Behavior

```bash
euca ai set <id> --behavior idle
euca ai set <id> --behavior chase --target <target_id> --speed 5
euca ai set <id> --behavior patrol --speed 3
euca ai set <id> --behavior flee --target <threat_id> --speed 4
```

AI sets entity Velocity each tick based on behavior. Requires entity to have a position (LocalTransform).

### AutoCombat (Auto-PvP)

Add `--combat` to any entity with `--health` and `--team` to enable automatic combat:

```bash
# Entities with --combat auto-detect enemies, chase, and melee attack
euca entity create --mesh cube --position -3,1,0 --health 100 --team 1 --color red --combat --physics Dynamic --collider aabb:0.5,0.5,0.5
euca entity create --mesh sphere --position 3,1,0 --health 80 --team 2 --color blue --combat --physics Dynamic --collider sphere:0.5
```

**Defaults:** damage: 10, range: 1.5, cooldown: 1.0s, detect_range: 20, chase_speed: 3.0

**Behavior per tick:**
1. Detect nearest alive entity on a different team within detect_range
2. If in attack range (1.5): deal damage (DamageEvent), wait cooldown
3. If out of range: chase (set Velocity toward target)
4. If no enemy found: march in the entity's MarchDirection (or stand still if none)

**March Direction:** Combat entities automatically receive a MarchDirection based on team. Team 1 marches in +X (right), team 2 marches in -X (left). When no enemy is in detect range, the entity advances toward the opposing side. Marching stops as soon as a target is found.

No `ai set` command needed — `--combat` handles everything automatically.

**Combat Customization:**
```bash
euca entity create --mesh cube --position 0,1,0 --health 800 --team 1 \
  --combat --combat-damage 40 --combat-range 5 --combat-cooldown 1.5 \
  --combat-speed 0 --combat-style stationary --physics Static --role tower
```

| Flag | Default | Description |
|------|---------|-------------|
| `--combat-damage` | 10 | Damage per attack |
| `--combat-range` | 1.5 | Attack range (units) |
| `--combat-speed` | 3.0 | Chase speed |
| `--combat-cooldown` | 1.0 | Seconds between attacks |
| `--combat-style` | melee | `melee` (chase) or `stationary` (tower mode) |

**Physics Body Types:**
- `--physics Dynamic`: physics-driven (gravity, collision response). For projectiles, falling objects.
- `--physics Kinematic`: gameplay-driven (no gravity, no collision blocking). For heroes, minions.
- `--physics Static`: immovable obstacle. For towers, walls, ground.

**Entity Roles:** `--role hero|minion|tower|structure` — affects targeting priority (towers attack minions before heroes).

**AI Patrol:** `--ai-patrol "-7,0,0:0,0,0:7,0,0"` — colon-separated waypoints. Entities patrol then fight when enemies appear.

**Spawn Points:** `--spawn-point <team>` — marks an entity as a respawn location for that team.

**Auto Health Bars:** Entities with a `Health` component automatically display a health bar above them in the viewport. Bars are colored by team (red = team 1, blue = team 2, green = other) and shrink as health decreases.

### Economy

```bash
# Hero with gold wallet and bounty
euca entity create --mesh sphere --position 0,1,0 --health 500 --team 1 \
  --combat --role hero --gold 0 --gold-bounty 300 --xp-bounty 200

# Check hero's gold, level, XP
euca ability list <id>
```

| Flag | Description |
|------|-------------|
| `--gold` | Starting gold amount |
| `--gold-bounty` | Gold awarded to killer on death |
| `--xp-bounty` | XP awarded to killer on death |

Heroes level up automatically when XP reaches threshold. Each level: +50 max HP, +5 attack damage.

### Abilities

```bash
euca ability use <entity_id> --slot Q    # Cast ability (Q/W/E/R)
euca ability list <entity_id>            # Show abilities, mana, gold, level
```

Abilities have cooldowns, mana costs, and effects (AreaDamage, Heal, SpeedBoost).

### Diagnostics

```bash
euca diagnose    # Scan all entities for problems
euca events      # Show pending damage/death/spawn events
```

`diagnose` checks: missing Velocity on combat entities, dead entities stuck without respawn timer, teams without spawn points, invisible entities.

### Visual Effects (Particles)

```bash
euca vfx spawn --position 0,3,0 --rate 100 --lifetime 1.5
euca vfx stop <entity_id>
euca vfx list
```

### Navigation

```bash
euca nav generate --cell-size 1.0    # Build navmesh from colliders
euca nav compute --from 0,0,0 --to 10,0,10    # A* pathfinding
euca nav set <entity_id> --target 10,0,5 --speed 5
```

### Audio

```bash
euca audio play <path> [--position x,y,z] [--volume 0.8] [--loop]
euca audio stop <entity_id>
euca audio list
```

### Animation

```bash
euca animation load <path.glb>       # Load glTF with animations
euca animation play <entity_id> --clip 0 [--speed 1.0] [--loop]
euca animation stop <entity_id>
euca animation list
```

### Terrain

```bash
# Create a heightmap terrain grid
euca terrain create --width 64 --height 64 --cell-size 1.0

# Edit terrain: raise, lower, flatten, or smooth at a point
euca terrain edit --op raise --x 10 --z 10 --radius 3 --amount 0.5
euca terrain edit --op lower --x 20 --z 20 --radius 5 --amount 1.0
euca terrain edit --op flatten --x 15 --z 15 --radius 4 --amount 0.0
euca terrain edit --op smooth --x 10 --z 10 --radius 6 --amount 0.3
```

| Flag | Default | Description |
|------|---------|-------------|
| `--width` | 64 | Grid columns |
| `--height` | 64 | Grid rows |
| `--cell-size` | 1.0 | World-space size per cell |
| `--op` | raise | Operation: `raise`, `lower`, `flatten`, `smooth` |
| `--x` | required | X coordinate on the heightmap |
| `--z` | required | Z coordinate on the heightmap |
| `--radius` | 3 | Brush radius (cells) |
| `--amount` | 0.5 | Brush strength |

### Prefab

```bash
# Spawn a registered prefab by name
euca prefab spawn --name watchtower --position 5,0,3

# List all available prefabs
euca prefab list
```

Prefabs are pre-configured entity bundles registered with the engine. Use `prefab list` to see what is available, then `prefab spawn` to instantiate at a position.

### Material

```bash
# Set PBR material properties on an entity
euca material set --entity <id> --metallic 1.0 --roughness 0.2
euca material set --entity <id> --emissive 1.0,0.5,0.0
euca material set --entity <id> --alpha-mode blend
```

| Flag | Format | Description |
|------|--------|-------------|
| `--entity` | u32 | Target entity ID (required) |
| `--metallic` | 0.0-1.0 | Metallic factor |
| `--roughness` | 0.0-1.0 | Roughness factor |
| `--emissive` | r,g,b | Emissive color (HDR values allowed) |
| `--alpha-mode` | opaque/blend | Transparency mode |

### Post-Processing

```bash
# Get current post-processing settings
euca postprocess get

# Toggle individual effects
euca postprocess set --ssao true             # Screen-space ambient occlusion
euca postprocess set --fxaa true             # Fast approximate anti-aliasing
euca postprocess set --bloom true            # Bloom glow effect

# Adjust exposure and color grading
euca postprocess set --exposure 1.2
euca postprocess set --contrast 1.1 --saturation 0.9

# Combine multiple settings in one call
euca postprocess set --ssao true --fxaa true --bloom true --exposure 1.0 --contrast 1.0 --saturation 1.0
```

| Flag | Format | Description |
|------|--------|-------------|
| `--ssao` | bool | Enable/disable screen-space ambient occlusion |
| `--fxaa` | bool | Enable/disable fast approximate anti-aliasing |
| `--bloom` | bool | Enable/disable bloom |
| `--exposure` | f32 | Exposure multiplier |
| `--contrast` | f32 | Contrast adjustment |
| `--saturation` | f32 | Saturation adjustment |

### Input

```bash
euca input bind W move_forward
euca input unbind W
euca input list

# Input context stack
euca input context-push gameplay   # Push a context (gameplay, menu, editor)
euca input context-pop             # Pop the top context
```

Input contexts form a stack. Only bindings in the top context are active. Push `menu` to capture input for a pause screen, then pop to return to gameplay.

### Rules (Data-Driven Game Logic)

```bash
# When blue team dies, spawn a replacement
euca rule create --when death --filter team:2 --do-action "spawn sphere 3,3,0 blue"

# Every 10 seconds, spawn a health pickup
euca rule create --when timer:10 --do-action "spawn sphere 0,1,0 gold"

# When health drops below 25, auto-heal
euca rule create --when health-below:25 --do-action "heal this 50"

# Kill scoring
euca rule create --when death --filter team:2 --do-action "score source +1"

# Management
euca rule list
```

**Conditions:** `death`, `timer:N` (seconds), `health-below:N`, `score:N` (when any player reaches score), `phase:playing|post_match` (when game phase changes)
**Filters:** `any`, `entity:N`, `team:N`
**Actions:** `spawn <mesh> <x,y,z> [color]`, `damage <target> <amount>`, `heal <target> <amount>`, `score <target> <points>`, `despawn <target>`, `teleport <target> <x,y,z>`
**Targets:** `this` (trigger entity), `source` (e.g. killer), `entity:N`

Rules are ECS entities — they're saved/loaded with scenes and compose with all other systems.

### HUD (In-Game UI)

```bash
# Text
euca ui text "Score: 10" --x 0.5 --y 0.02 --size 24 --color white
euca ui text "GAME OVER" --x 0.5 --y 0.5 --size 48 --color red

# Bars (health, progress)
euca ui bar --x 0.02 --y 0.95 --width 0.2 --height 0.03 --fill 0.75 --color red

# Management
euca ui clear                     # Remove all HUD elements
euca ui list                      # Show current elements
```

Coordinates: (0,0) = top-left, (1,1) = bottom-right. HUD renders in the editor window.

### Entity Templates

```bash
# Define a template
euca template create soldier --mesh cube --health 100 --team 1 --color red --physics Dynamic --collider aabb:0.5,0.5,0.5

# Spawn instances at different positions
euca template spawn soldier --position 0,2,0
euca template spawn soldier --position 3,2,0
euca template spawn soldier --position 6,2,0

# List templates
euca template list
```

### Screenshot

```bash
euca screenshot                          # Save to temp file, print path
euca screenshot --output scene.png       # Save to specific path
```

Screenshots capture the 3D viewport (no HUD overlay). Use to verify entity placement, colors, camera angle.

### Scene

```bash
euca scene save my_scene.json            # Save world state
euca scene load my_scene.json            # Load (replaces current)
```

### Status & Schema

```bash
euca status                      # Engine version, entity count, tick
euca schema                      # All component types and fields
```

### Authentication

```bash
euca auth login                  # Login with nit identity
euca auth status                 # Check session
```

## Available Colors

Named: `red`, `blue`, `green`, `gold`, `silver`, `gray`, `white`, `black`, `yellow`, `cyan`, `magenta`, `orange`

## Available Meshes

`cube`, `sphere`, `plane`

## Components (visible in entity get)

| Component | Fields | Notes |
|-----------|--------|-------|
| transform | position, rotation, scale | All [f32; 3] or [f32; 4] |
| velocity | linear, angular | Both [f32; 3] |
| physics_body | Dynamic / Static / Kinematic | |
| collider | Aabb{hx,hy,hz}, Sphere{radius}, Capsule{radius,half_height} | |
| health | [current, max] | Only if --health was set |
| team | u8 | Only if --team was set |
| dead | true | Only if health reached 0 |
| auto_combat | damage, range, cooldown, detect_range, speed | Only if --combat was set |
| march_direction | [f32; 3] | Auto-set on combat entities (team 1: +X, team 2: -X) |

## Flag Reference

| Flag | Format | Used in |
|------|--------|---------|
| `--mesh` | cube/sphere/plane | entity create |
| `--color` | name or r,g,b | entity create, entity update |
| `--position` | x,y,z | entity create, entity update, prefab spawn |
| `--scale` | x,y,z | entity create, entity update |
| `--velocity` | x,y,z | entity update |
| `--physics` | Dynamic/Static/Kinematic | entity create, entity update |
| `--collider` | aabb:h,h,h / sphere:r / capsule:r,hh | entity create, entity update |
| `--health` | f32 | entity create |
| `--team` | u8 | entity create |
| `--combat` | flag | entity create, template create |
| `--json` | JSON string | entity create, entity update |
| `--dry-run` | flag | entity create, entity update |
| `--amount` | f32 | entity damage, entity heal, terrain edit |
| `--behavior` | idle/chase/patrol/flee | ai set |
| `--target` | entity ID | ai set, camera focus |
| `--speed` | f32 | ai set, projectile spawn, nav set |
| `--damage` | f32 | projectile spawn |
| `--action` | damage:N / heal:N | trigger create |
| `--fill` | 0.0-1.0 | ui bar |
| `--size` | pixels | ui text |
| `--when` | death/timer:N/health-below:N | rule create |
| `--filter` | any/entity:N/team:N | rule create |
| `--do-action` | action string (repeatable) | rule create |
| `--output` | file path | screenshot |
| `--server` | URL | global (default: http://localhost:3917) |
| `--name` | string | prefab spawn, template create/spawn |
| `--entity` | u32 | material set |
| `--metallic` | 0.0-1.0 | material set |
| `--roughness` | 0.0-1.0 | material set |
| `--emissive` | r,g,b | material set |
| `--alpha-mode` | opaque/blend | material set |
| `--ssao` | bool | postprocess set |
| `--fxaa` | bool | postprocess set |
| `--bloom` | bool | postprocess set |
| `--exposure` | f32 | postprocess set |
| `--contrast` | f32 | postprocess set |
| `--saturation` | f32 | postprocess set |
| `--width` | u32 | terrain create |
| `--height` | u32 | terrain create |
| `--cell-size` | f32 | terrain create, nav generate |
| `--op` | raise/lower/flatten/smooth | terrain edit |
| `--x` | f32 | terrain edit |
| `--z` | f32 | terrain edit |
| `--radius` | f32 | terrain edit |

## Workflows

### Arena Survival (full showcase)

```bash
# 1. Define templates (--combat enables auto-fight)
euca template create soldier --mesh cube --health 100 --team 1 --color red --combat --physics Dynamic --collider aabb:0.5,0.5,0.5
euca template create enemy --mesh sphere --health 60 --team 2 --color blue --combat --physics Dynamic --collider sphere:0.5

# 2. Create match
euca game create --mode deathmatch --score-limit 10

# 3. Spawn teams using templates
euca template spawn soldier --position="-4,1,0"
euca template spawn soldier --position="-4,1,3"
euca template spawn enemy --position 4,1,0
euca template spawn enemy --position 4,1,3
euca template spawn enemy --position 2,1,1

# 4. Center hazard zone
euca trigger create --position 0,0,0 --zone 1.5,1,1.5 --action damage:10

# 5. AI — enemies chase soldiers
euca ai set 4 --behavior chase --target 2 --speed 4
euca ai set 5 --behavior chase --target 3 --speed 4
euca ai set 6 --behavior chase --target 2 --speed 3

# 6. Rules — scoring, respawning, milestones
euca rule create --when death --filter team:2 --do-action "score source +1"
euca rule create --when death --filter team:2 --do-action "spawn sphere 4,3,0"
euca rule create --when timer:8 --do-action "spawn sphere 5,2,0"
euca rule create --when score:5 --do-action "text HALFWAY!"
euca rule create --when phase:post_match --do-action "text GAME OVER!"

# 7. HUD
euca ui text "ARENA SURVIVAL" --x 0.5 --y 0.01 --size 28 --color yellow
euca ui bar --x 0.02 --y 0.92 --width 0.12 --height 0.02 --fill 1.0 --color red
euca ui bar --x 0.86 --y 0.92 --width 0.12 --height 0.02 --fill 1.0 --color blue

# 8. Fire a projectile
euca projectile spawn --from="-4,1,0" --direction 1,0,0 --speed 15 --damage 30

# 9. Screenshot, simulate, check
euca screenshot --output setup.png
euca sim play
# wait...
euca sim pause
euca game state
euca camera view top && euca screenshot --output topdown.png
```

### Inspect & Debug

```bash
euca entity list | jq '.entities[] | select(.health != null) | {id, health, team, dead}'
euca entity get 3
euca game state
euca camera view top && euca screenshot
```

### Physics Playground

```bash
euca entity create --mesh cube --position 0,5,0 --physics Dynamic --collider aabb:0.5,0.5,0.5 --color red
euca entity create --mesh sphere --position 0,10,0 --physics Dynamic --collider sphere:0.5 --color blue
euca sim play && sleep 2 && euca sim pause
euca screenshot
```

### Asset Pipeline (offline)

These commands work without the engine running — they process files directly.

```bash
# Show metadata about a glTF/glb file
euca asset info model.glb

# Run mesh optimization (dedup, tangents, cache reorder)
euca asset optimize model.glb
euca asset optimize model.glb -o stats.json   # Save stats to file

# Generate LOD chain
euca asset lod model.glb --levels 4
euca asset lod model.glb --levels 6 -o lod_stats.json
```

### Discover (offline)

Self-describing CLI for AI agents and humans. Always in sync with actual commands.

```bash
# Human-readable overview of all command groups
euca discover

# Machine-readable JSON manifest (for AI agents)
euca discover --json

# Details for a specific group
euca discover entity
euca discover asset
```

### Package (offline)

```bash
# Package game for distribution
euca package --project . --output dist/
```

## Output

All commands return JSON. Pipe through `jq` for filtering:

```bash
euca entity list | jq '.entities[] | select(.team == 1) | .id'
euca game state | jq '.scores'
```

## Server Details

- **Port**: 3917 (default)
- **Protocol**: HTTP REST (JSON)
- **Override**: `euca --server http://localhost:PORT ...`

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