225 lines
9.7 KiB
Python
225 lines
9.7 KiB
Python
# LG training bot movement: steers the bot named "lgbot" like a human LG duelist (ground ADAD
|
|
# strafing with uneven holds and fakes, keeps LG range, never jumps). Aim comes from the bot's
|
|
# character file (botfiles/bots/lgbot_c.c, the number in "addbot lgbot N"); this plugin only moves it.
|
|
# Settings are cvars (the ./lgbot script sets them): lgbot_move 1-5 picks a preset, the detail cvars
|
|
# override one part of it, -1 = use the preset. The pattern code below has no minqlx dependency so
|
|
# tools/test_lgbot.py and tools/lgbot.py can import it.
|
|
import math
|
|
import random
|
|
import time
|
|
|
|
RUN_SPEED = 320 # QL ground run speed, units/s
|
|
# Ground friction takes ~25% of the velocity we set before the frame's move happens (measured:
|
|
# 288 set -> ~220 actual), so on the ground we set this much more to end up at the wanted speed.
|
|
# In the air there is no friction, so no boost (vertical speed 0 = on the ground, near enough).
|
|
FRICTION_COMP = 1.3
|
|
|
|
KEYS = ["strafe_min", "strafe_max", "fake", "range", "range_play", "speed", "lane"]
|
|
LIMITS = {"strafe_min": (50, 2000), "strafe_max": (50, 2000), "fake": (0, 100),
|
|
"range": (150, 750), "range_play": (0, 1), "speed": (50, 100), "lane": (0, 2000)}
|
|
PRESETS = {
|
|
1: {"strafe_min": 600, "strafe_max": 1000, "fake": 0, "range": 450, "range_play": 0, "speed": 80, "lane": 600},
|
|
2: {"strafe_min": 400, "strafe_max": 800, "fake": 10, "range": 450, "range_play": 0, "speed": 90, "lane": 500},
|
|
3: {"strafe_min": 250, "strafe_max": 600, "fake": 25, "range": 400, "range_play": 1, "speed": 100, "lane": 400},
|
|
4: {"strafe_min": 180, "strafe_max": 450, "fake": 35, "range": 380, "range_play": 1, "speed": 100, "lane": 350},
|
|
5: {"strafe_min": 120, "strafe_max": 350, "fake": 50, "range": 350, "range_play": 1, "speed": 100, "lane": 300},
|
|
}
|
|
PUSH_RANGE, BACKOFF_RANGE = 250, 700
|
|
BACKOFF_HEALTH, PUSH_LEAD = 60, 30
|
|
MAX_TARGET_DIST = 1500
|
|
BOT_STEAM_ID = 90071996842377216 # minqlx gives bots this + their client number
|
|
|
|
|
|
def is_bot(steam_id):
|
|
return steam_id == 0 or steam_id >= BOT_STEAM_ID
|
|
|
|
|
|
def is_lgbot(name, steam_id):
|
|
"""The training bot: named lgbot AND a bot (a human can't take it over by renaming)."""
|
|
return name.lower() == "lgbot" and is_bot(steam_id)
|
|
|
|
|
|
def to_int(text):
|
|
"""Cvar text -> int, None when unset or junk (so a typo falls back to the preset)."""
|
|
try:
|
|
return int(float(text))
|
|
except (TypeError, ValueError):
|
|
return None
|
|
|
|
|
|
def resolve(move, overrides):
|
|
"""Preset for movement level `move` with the valid (>= 0) overrides applied, clamped."""
|
|
try:
|
|
move = min(5, max(1, int(move)))
|
|
except (TypeError, ValueError):
|
|
move = 3
|
|
s = dict(PRESETS[move])
|
|
for k, v in overrides.items():
|
|
if k in LIMITS and isinstance(v, int) and v >= 0:
|
|
lo, hi = LIMITS[k]
|
|
s[k] = min(hi, max(lo, v))
|
|
s["strafe_max"] = max(s["strafe_max"], s["strafe_min"])
|
|
return s
|
|
|
|
|
|
class Strafer:
|
|
"""Strafe direction over time: holds one side for strafe_min..strafe_max ms, then switches.
|
|
A fake is a 60-120 ms tap to the other side followed by a new hold on the original side.
|
|
Lane: strafing sideways to someone moves you around them, and fakes keep you going the same
|
|
way, so the net sideways drift is tracked and the bot turns back once it is more than `lane`
|
|
units off centre (0 = no limit). That keeps it doing ADAD in front of you instead of circling."""
|
|
|
|
def __init__(self, rng=random):
|
|
self.rng = rng
|
|
self.direction = 1
|
|
self.until = 0
|
|
self.faking = False
|
|
self.drift = 0 # signed ms of strafing, + = direction 1
|
|
self.last = None
|
|
|
|
def step(self, now_ms, s):
|
|
if self.last is not None:
|
|
self.drift += self.direction * (now_ms - self.last)
|
|
self.last = now_ms
|
|
if s["lane"]:
|
|
lane_ms = s["lane"] * 1000.0 / (RUN_SPEED * s["speed"] / 100.0)
|
|
if self.direction * self.drift >= lane_ms:
|
|
self.direction = -self.direction
|
|
self.faking = False
|
|
self.until = now_ms + self.rng.randint(s["strafe_min"], s["strafe_max"])
|
|
return self.direction
|
|
if now_ms >= self.until:
|
|
self.direction = -self.direction
|
|
if self.faking:
|
|
self.faking = False
|
|
self.until = now_ms + self.rng.randint(s["strafe_min"], s["strafe_max"])
|
|
elif self.rng.random() * 100 < s["fake"]:
|
|
self.faking = True
|
|
self.until = now_ms + self.rng.randint(60, 120)
|
|
else:
|
|
self.until = now_ms + self.rng.randint(s["strafe_min"], s["strafe_max"])
|
|
return self.direction
|
|
|
|
|
|
def wanted_range(s, my_hp, target_hp):
|
|
if s["range_play"]:
|
|
if my_hp < BACKOFF_HEALTH:
|
|
return BACKOFF_RANGE
|
|
if my_hp >= target_hp + PUSH_LEAD:
|
|
return PUSH_RANGE
|
|
return s["range"]
|
|
|
|
|
|
def steer(bot_xy, target_xy, direction, s, want):
|
|
"""Horizontal velocity: strafe sideways to the target, plus in/out to hold `want` distance."""
|
|
cap = RUN_SPEED * s["speed"] / 100.0
|
|
dx, dy = target_xy[0] - bot_xy[0], target_xy[1] - bot_xy[1]
|
|
dist = math.hypot(dx, dy)
|
|
if dist < 1:
|
|
return (direction * cap, 0.0)
|
|
ux, uy = dx / dist, dy / dist
|
|
radial = max(-0.7 * cap, min(0.7 * cap, (dist - want) * 2.0))
|
|
side = math.sqrt(max(0.0, cap * cap - radial * radial))
|
|
return (-uy * direction * side + ux * radial, ux * direction * side + uy * radial)
|
|
|
|
|
|
def fix_z(vz):
|
|
"""Cancel a jump (QL jump velocity is ~275); leave slopes, falling and jump pads alone."""
|
|
return 0.0 if 200 <= vz <= 320 else vz
|
|
|
|
|
|
def pick_target(bot_xy, candidates, max_dist=MAX_TARGET_DIST):
|
|
best, best_d = None, max_dist
|
|
for xy, obj in candidates:
|
|
d = math.hypot(xy[0] - bot_xy[0], xy[1] - bot_xy[1])
|
|
if d <= best_d:
|
|
best, best_d = obj, d
|
|
return best
|
|
|
|
|
|
try:
|
|
import minqlx
|
|
except ImportError: # imported by tests / the setup script outside the server
|
|
minqlx = None
|
|
|
|
if minqlx:
|
|
class lgbot(minqlx.Plugin):
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.set_cvar_once("lgbot_move", "3")
|
|
for k in KEYS:
|
|
self.set_cvar_once("lgbot_" + k, "-1")
|
|
self.set_cvar_once("lgbot_debug", "0")
|
|
self.set_cvar_once("lgbot_target_bots", "0") # test aid: let it fight other bots
|
|
self.strafer = Strafer()
|
|
self.settings, self.read_at, self.log_at = None, 0.0, 0.0
|
|
self.debug = self.target_bots = False
|
|
self.failed = False
|
|
self.last_cmd, self.slow_frames, self.stuck = None, 0, 0 # debug stats
|
|
self.add_hook("frame", self.handle_frame)
|
|
|
|
def handle_frame(self):
|
|
try:
|
|
self.tick()
|
|
except Exception:
|
|
if not self.failed: # log once, never spam 40 tracebacks a second
|
|
self.failed = True
|
|
minqlx.log_exception(self)
|
|
|
|
def read_cvars(self, now):
|
|
if self.settings is None or now - self.read_at >= 1.0:
|
|
over = {k: to_int(self.get_cvar("lgbot_" + k)) for k in KEYS}
|
|
self.settings = resolve(to_int(self.get_cvar("lgbot_move")), over)
|
|
self.debug = bool(to_int(self.get_cvar("lgbot_debug")))
|
|
self.target_bots = bool(to_int(self.get_cvar("lgbot_target_bots")))
|
|
self.read_at = now
|
|
return self.settings
|
|
|
|
def tick(self):
|
|
players = self.players()
|
|
bot = next((p for p in players if is_lgbot(p.clean_name, p.steam_id)), None)
|
|
if bot is None or not bot.is_alive:
|
|
return
|
|
now = time.time()
|
|
s = self.read_cvars(now)
|
|
cands = []
|
|
for p in players:
|
|
if p.id == bot.id or p.team == "spectator" or not p.is_alive:
|
|
continue
|
|
if is_bot(p.steam_id) and not self.target_bots:
|
|
continue
|
|
pos = p.position()
|
|
cands.append(((pos.x, pos.y), p))
|
|
bpos = bot.position()
|
|
target = pick_target((bpos.x, bpos.y), cands)
|
|
if target is None:
|
|
return # nobody to duel: stock AI roams
|
|
tpos = target.position()
|
|
direction = self.strafer.step(int(now * 1000), s)
|
|
want = wanted_range(s, bot.health, target.health)
|
|
vx, vy = steer((bpos.x, bpos.y), (tpos.x, tpos.y), direction, s, want)
|
|
vel = bot.velocity()
|
|
comp = FRICTION_COMP if abs(vel.z) < 1 else 1.0
|
|
bot.velocity(x=vx * comp, y=vy * comp, z=fix_z(vel.z))
|
|
if self.debug:
|
|
self.debug_line(now, vel, (vx, vy), tpos, bpos, want, direction)
|
|
|
|
def debug_line(self, now, vel, cmd, tpos, bpos, want, direction):
|
|
# cos = how well last frame's command survived the frame (1 = exactly our direction);
|
|
# stuck = times actual speed stayed under half the command for > 0.5 s (walls)
|
|
actual = math.hypot(vel.x, vel.y)
|
|
cos = 0.0
|
|
if self.last_cmd:
|
|
lc = math.hypot(*self.last_cmd)
|
|
if lc > 1 and actual > 1:
|
|
cos = (vel.x * self.last_cmd[0] + vel.y * self.last_cmd[1]) / (lc * actual)
|
|
self.slow_frames = self.slow_frames + 1 if actual < lc / 2 else 0
|
|
if self.slow_frames == 20:
|
|
self.stuck += 1
|
|
self.last_cmd = cmd
|
|
if now - self.log_at >= 1.0:
|
|
self.log_at = now
|
|
self.logger.info("lgbot dist=%d want=%d dir=%d cmd=%d actual=%d cos=%.2f stuck=%d z=%d",
|
|
math.hypot(tpos.x - bpos.x, tpos.y - bpos.y), want, direction,
|
|
math.hypot(*cmd), actual, cos, self.stuck, vel.z)
|