Add data-driven status effect (modifier) system#93
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Implement genre-agnostic status effects as pure data: tag + stat modifiers
+ duration + tick effects. No hardcoded Stun/Slow/Shield enums — these
emerge from tag + modifier combinations defined by game data.
Core (euca-gameplay):
- StatusEffect, StatModifier, ModifierOp, StackPolicy, TickEffect types
- StatusEffects component (Vec<StatusEffect> per entity)
- apply_effect(): respects Replace vs Stack{max} policies
- cleanse(): remove effects matching a tag substring filter
- status_effect_tick_system(): tick durations, apply DPS/HPS, remove
expired, emit StatusEffectExpired events
- 12 unit tests covering application, stacking, expiry, cleanse, DPS,
HPS, source tracking, and modifier storage
HTTP API (euca-agent):
- POST /effect/apply, GET /effect/list/{id}, POST /effect/cleanse
CLI (euca-cli):
- euca effect apply, euca effect list, euca effect cleanse
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Deploying euca-engine with
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Closing stale worktree agent PR — this work was superseded or not merged. |
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Summary
StatusEffect,StatModifier,ModifierOp,StackPolicy,TickEffect,StatusEffectscomponentapply_effect()with Replace vs Stack{max} policies,cleanse()with tag substring filter,status_effect_tick_system()for DPS/HPS/expiryPOST /effect/apply,GET /effect/list/{id},POST /effect/cleanseeuca effect apply,euca effect list,euca effect cleanseTest plan
cargo test --workspace— all 108+ gameplay tests pass (12 new status effect tests)cargo build --workspace— clean buildcargo clippy --workspace— zero warningscargo fmt --all --check— formatting clean🤖 Generated with Claude Code