Skill Prediction

Simulates skills client-side, eliminating ping-based delays and animation lock.

Note: Skill Prediction does not reduce your actual ping to the server. If you wish to have lower ping in general, consider renting an optimized gaming VPN such as Mudfish, Pingzapper or WTFast or different ones.

Troubleshooting

Delayed skills:

• Disable Windows Defender and Windows 10 Game Mode.
• Bank or delete any Noctenium Infusion in your inventory (even if you aren't using it).

Ghosting / Disconnects over unstable WiFi:

• Edit tera-proxy/settings/skill-prediction.json and change the following settings:

"skills": {
	"retryCount": 1,
	"retryMs": 60,
},
"ping": {
	"interval": 3300,
}

Developers

config/skills.js

This file contains skill data specific to skill-prediction. The basic structure is as follows:

• classId -> skillGroup -> skillSub -> skillData OR
• classId -> skillGroup -> '*' -> skillData OR
• classId -> '*' -> skillData OR
• '*' -> skillId -> skillData

skillGroup and skillSub are derived from the skill ID, which tends to follow a pattern for player skills:

• XXYYZZ where X = skillGroup, Y = skillLevel, Z = skillSub

skillData is an object containing one or more of the following properties, or a truthy value such as true to inherit defaults:

• type: SP-specific skill type, one of the following:
• • 'hold': Temporarily-held skills (Corruption Ring).
• • 'holdInfinite': Infinitely-held skills (Stand Fast, Axe Block, etc.).
• • 'dash': Fixed-speed dash using S_INSTANT_DASH.
• • 'teleport': Fixed-distance teleport using S_INSTANT_MOVE.
• • 'lockon'
• • 'lockonCast'
• • 'userProjectile': Client-sided projectile (not a skill).
• fixedSpeed (boolean): Ignore attack speed.
• length: The skill animation length before taking into account speed multipliers.
• distance: The distance the skill moves the player in the direction it's facing.
• moveDir: Distance rotation in half-turns (default 0).
• noInterrupt (array): A list of skills that cannot be interrupted by this skill. Each entry can be either skillGroup or 'skillGroup-skillSub'.
• projectiles: An array of skillSub projectiles. Requires DEBUG_PROJECTILES to be enabled.
• triggerAbnormal (object): Abnormalities this skill triggers on use. Keys are abnormality IDs, values are durations.
• consumeAbnormal: An array of abnormalities consumed before this skill begins.
• consumeAbnormalEnd: An array of abnormalities consumed after this skill ends.
• movement: An array of segment objects containing the following parameters (from S_ACTION_STAGE):
• • duration: Segment duration.
• • speed: Horitonztal distance multiplier.
• • unk: Vertical distance multiplier.
• • distance: Distance moved for this segment.
• glyphs (object): Keys are glyph IDs, values contain one or more properties:
• • movement: Overrides movement.
• • distance: Multiplies distance.
• abnormals (object): Keys are abnormality IDs, values contain one or more properties:
• • disableSkill: Disables skill usage.
• • speed: Multiplies speed.
• • chargeSpeed: Bonus charging speed (additive).
• chains (object) deprecated: Keys are skillGroup or 'skillGroup-skillSub', values override skillSub.
• userChain: Forced initial chain for simulating serverside anti-cheat. Possible values are skillSub (<100), skillId (>=100) or null.
• abnormalChains (object): Keys are abnormalId. Possible values are skillSub (<100), skillId (>=100) or null.
• categoryChains (object): Keys are a comma-separate list of category IDs which must match. Possible values are skillSub (<100), skillId (>=100) or null.
• inPlace (object): Used while casting a skill without pressing movement keys.
• • movement: Overrides movement.
• • distance: Overrides distance.
• stamina: How much Stamina (Resolve, Willpower, Chi, Ragnarok) is required to use this skill.
• instantStamina (boolean): Simulate stamina usage without waiting for server response.
• requiredBuff: Abnormality ID (or an array of possible IDs) required to use this skill.
• forceClip (boolean): Rubberbands the player to the server location in S_ACTION_STAGE.movement (if set) when the skill ends. Used to prevent iframes from clipping through gates, etc.
• interruptibleWithAbnormal (object): Keys are abnormality IDs, values are a skillGroup that can be interrupted with this skill.
• chainOnRelease: skillSub animation to play if the button is released early (only for type: 'hold' or type: 'holdInfinite').
• teleportStage: Stage at which to apply teleport (only for type: 'teleport').
• partyOnly (boolean): Lockon only applies to party members (only for type: 'lockon').
• flyingSpeed: Projectile speed (only for type: 'userProjectile').
• flyingDistance: Projectile curve endpoint (only for type: 'userProjectile').
• hasChains (boolean): Flags this skill as being prone to desync (enables strict notify location checking).
• noRetry (boolean): Disables automatic retries for this skill.
• race (object): Keys are race+gender ID, values override skillData properties.
• level (object): Keys are skill level - 1 (to enable array usage), values override skillData properties.