Introduce active diplomacy where rival leaders approach the player with
requests, demands, trades, and gifts rather than passively waiting.
New CivilizationDiplomacy.js module handles:
- 9 request kinds (joinWar, breakTreaty, borderUltimatum, demandGold,
demandTech, techTrade, ceasefire, peace, alliance) with initiative
tiers so urgent calls to arms aren't drowned out by filler offers
- Cooldowns per (leader, target, kind) plus a per-leader gap so a
leader can't spam different requests to bypass rate limits
- Frustration grudge (0-100) raised by refusals, decaying each turn
and dragging attitude toward hostility through the ordinary war path
- Escalation: frustrated leaders demand compensation, then renounce
treaties at breaking point, with ordinary hostility finishing the job
- Border ultimatum promises checked when pledges expire (double penalty
for broken word)
- Unprompted gold/tech gifts from leaders with high attitude
- Staleness validation so requests the world invalidated are dropped
- AI-to-AI requests resolve immediately through the same pipeline
UI changes:
- AI requests queued on state.pendingRequests, presented via audience
popup at the start of the human turn (one per turn, configurable)
- Diplomacy screen shows ACCEPT/REFUSE with consequence hints until
answered; unanswered requests lapse with half-weight penalties
- New event types: treatyRenounced, pledgeBroken/pledgeKept, aiGift
- Leader dialogue for demands, refusals, gifts, and renouncements
- Tetris Attack menu gets a title art backdrop
Data/infra:
- diplomacyRequests tuning in civilization-rules.json (thresholds,
cooldowns, attitude weights, per-request config)
- Frustration, requestCooldown, lastRequestTurn, pledges fields on
civ state — all backward-compatible with old saves
- Full verification suite covering eligibility, resolution, cooldowns,
frustration arc, serialization, and fuzz testing
Add audio feedback for combat events by introducing unit-specific sound
effects that play during attack animations. Each unit in civilization-rules.json
now has a battleSound property mapping to appropriate audio assets. Adds 10
new MP3 files (arrows, cannon, catapult, gunfire-classic/modern, helicopter,
missile, submarine, sword, tank) and integrates playback in CivilizationMapView's
combat lunge animation.
- Introduce difficulty-based combat multipliers and veteran promotion chances (Chieftain/Warlord eased, Prince+ neutral)
- Randomize leader selection on setup screen and add dynamic portrait with pick speech
- Replace inline hover text with a centralized Tooltip component for tech tree, foreign cities, and buildings
- Add descriptive flavor text for governments and terrain improvements
- Add building completion notifications with a "VIEW CITY" action button
- Expand deferred city attack cinematics to cover explored rival cities
- Improve Tempest flipper AI to scale lane-flipping chance/cooldown with level and enable climbing flips
- Add verification tests for difficulty combat modifiers and veteran rates
Introduce civTraits data structure with 8 traits (scientific, industrious,
commercial, philosophical, zealous, mercantile, pioneering, wealthy) that
provide science/gold/shield multipliers, starting gold, and starting
technologies. Assign each opponent a trait in opponents.json.
- Apply trait bonuses to starting gold and grant starting techs during
game creation in CivilizationLogic
- Route trait multipliers into cityYields for science, gold, and production
- Add a leader detail panel to the setup screen showing name, trait name,
and description, updated live when selecting leaders
- Add validation for civTraits in CivilizationRules (multipliers positive,
starting techs valid, etc.)
- Add verification tests for trait application and city yield multipliers
- Nudge unit sprite position 5px down for better tile alignment
Brian Fertig