Combat Logic

Combat Logic adds ARPG-style mechanics on top of vanilla combat—without replacing it. Spend stamina on dodges and skills, raise combo rank (E→SSS) for damage and regeneration bonuses, and read everything from a compact top-right HUD.

Hostile mobs show localized names and current/max HP. A vertical action feed (up to four lines) replaces chat spam for combat feedback. Parry works against mobs and players (PvP), with a 3-second cooldown after each successful parry.

World owners can scale hostile HP. Each player can disable combo or stamina/actions independently. All settings are in one DDUI menu (/combatlogic:cl_settings)—HUD, combo, actions, world difficulty, and new-player defaults (operators). Uses Script API (main (beta), @minecraft/server-ui, and custom commands.

Core systems

Stamina

• Maximum: 100
• Base regen: 1 every 25 ticks (not during roll i-frames)
• Combo rank regen bonus (combo system ON for that player):

Creative / Spectator: exempt from combat ticks.

Dodge

Per-move cooldowns: roll 22 ticks, step 12 ticks.

Parry (shield only)

Open parry window (~10 ticks / 0.5 s)

• Start blocking with shield, or
• Sneak + shield when about to be hit (window opens on hurt check)

Successful parry requires

• Actions system ON
• Shield equipped (main or off hand)
• Active parry window
• Damage: melee (entityAttack) or projectile
• Attacker: any entity (mobs and players / PvP)
• Not on parry cooldown

On success

• Cancel that hit’s damage
• Stun attacker ~3 s (slowness + weakness, 60 ticks)
• VFX / sound
• HUD feed: Parry
• 3 s parry cooldown (60 ticks): no new window, no success until it ends

Does not work: fire, fall, explosion, etc.; no stamina cost for parry.

Action skills

Blocked with shield, bow, food, bucket, etc.

Combo

• +1 per hit; reset after 60 ticks (~3 s) without a hit
• Ranks E→SSS at 1 / 2 / 5 / 10 / 20 / 40 / 70 hits
• Damage: +5% per hit after the first, cap +500%
• Brief rank-up flash on HUD

Enemy HP

• Hostile mobs only
• Two-line name tag: localized name + cur/max HP
• Refresh on spawn, hurt, proximity
• Clears custom name before mob kills player (death message fix)

Difficulty (world)

World-stored; reapplied when changed.

HUD (top-right)

• Panel: 168×58 px, ui/hud_screen.json, text via title prefix CLHUD:

Action feed events: Roll, Step, Parry, Focus, Uppercut, STA depleted — not in chat.

Toggle: /combatlogic:cl_settings (recommended) or /combatlogic:cl_hud

Settings menu (DDUI)

Open with /combatlogic:cl_settings. One reactive form for:

Changes apply when you close the menu or tap Apply now. Falls back to a classic modal form if DDUI is unavailable. Legacy toggle commands still work.

Custom commands

Namespace: combatlogic:
Enums: combatlogic:difficulty, combatlogic:toggle
Return messages: plain strings.

HUD compatibility

Likely conflicts: other packs editing hud_screen.json → hud_content; scripts constantly driving title / subtitle.
Moderate: persistent actionbar bars, large right scoreboard.
Usually fine: chat-only, worldgen, texture packs.

Put Combat Logic RP above other HUD RPs; test with others disabled if layout breaks.