SirStone
2cc2a3bd87
- 30-tick cooldown after ghost-stuck/timeout ram exit prevents re-entry loop - enemy_tracker.update() skips dead bots to prevent same-tick scan resurrection - TFIL graphics cleared when ramming is active movement - [config] logs: white base with green-highlighted changes only - [ram:enter] logs trigger reason and key values on false→true transition - [death] and [target-invalid] logs retained for diagnostics
58 lines
2.3 KiB
Nim
58 lines
2.3 KiB
Nim
## random_oscillator.nim — perpendicular strafing with randomized reversal timing.
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## Harder to predict than fixed-period oscillation; same wall-lockout guard as oscillator.nim.
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import std/math
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import std/random
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import std/times
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import gun_harness/gun_interface
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import movement_harness/movement_interface
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const
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MaxSpeed* = 8.0 ## Tank Royale max speed
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MinPeriod* = 15 ## shortest reversal interval (ticks)
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MaxPeriod* = 45 ## longest reversal interval (ticks)
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WallMargin* = 80.0 ## px from wall to trigger forced reversal
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WallLockout* = 20 ## ticks to suppress further wall-reversals after one fires
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type RandomOscillatorModule* = object
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sign: float ## +1 or -1
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elapsed: int ## ticks since last reversal
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nextPeriod: int ## random period chosen at last reversal
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wallLockout: int ## remaining suppression ticks
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rng: Rand
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debugGraphics*: bool
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proc initRandomOscillator*(): RandomOscillatorModule =
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var rng = initRand(getTime().toUnix())
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let period = rng.rand(MinPeriod..MaxPeriod)
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RandomOscillatorModule(sign: 1.0, elapsed: 0, nextPeriod: period,
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wallLockout: 0, rng: rng, debugGraphics: false)
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proc computeMove*(m: var RandomOscillatorModule, ws: WorldState): MoveCommand =
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inc m.elapsed
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if m.wallLockout > 0: dec m.wallLockout
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let nearWall = ws.selfX < WallMargin or ws.selfX > ws.arenaWidth - WallMargin or
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ws.selfY < WallMargin or ws.selfY > ws.arenaHeight - WallMargin
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if m.elapsed >= m.nextPeriod or (nearWall and m.wallLockout == 0):
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m.sign *= -1.0
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m.elapsed = 0
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m.nextPeriod = m.rng.rand(MinPeriod..MaxPeriod)
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if nearWall: m.wallLockout = WallLockout
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# Perpendicular heading to enemy bearing (same dot-product trick as phantom_meteor)
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let enemyBearingRad = arctan2(ws.enemyY - ws.selfY, ws.enemyX - ws.selfX)
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let perpHeadingDeg = radToDeg(enemyBearingRad) + 90.0
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var delta = perpHeadingDeg - ws.selfHeading
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while delta > 180.0: delta -= 360.0
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while delta < -180.0: delta += 360.0
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# Dot-product trick: if going backward, flip turn to stay perpendicular
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var normDelta = if m.sign < 0: delta - 180.0 else: delta
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while normDelta > 180.0: normDelta -= 360.0
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while normDelta < -180.0: normDelta += 360.0
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(speed: m.sign * MaxSpeed, turnRate: normDelta.clamp(-10.0, 10.0))
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