moth/tanks/lib/actions.py

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2009-10-06 11:50:21 -06:00
"""Define new action Functions here. They should inherit from the
Function.Function class. To make an action usable, add it to the
actions dictionary at the end of this file."""
import Function
class Move(Function.Function):
"""move(left tread speed, right tread speed)
Set the speeds for the tanks right and left treads. The speeds should
be a number (percent power) between -100 and 100."""
def __init__(self, left, right):
self._checkRange(left, 'left tread speed', min=-100)
self._checkRange(right, 'right tread speed', min=-100)
self._left = left
self._right = right
def __call__(self, tank):
tank.setMove(self._left, self._right)
class TurretCounterClockwise(Function.Function):
"""turretccw([percent speed])
Rotate the turret counter clockwise as a percentage of the max speed."""
def __init__(self, speed=100):
self._checkRange(speed, 'turret percent speed')
self._speed = speed/100.0
def __call__(self, tank):
tank.setTurretAngle(tank._tAngle - tank.TURRET_TURN_RATE*self._speed)
class TurretClockwise(Function.Function):
"""turretcw([percent speed])
Rotate the turret clockwise at a rate preportional to speed."""
def __init__(self, speed=100):
self._checkRange(speed, 'turret percent speed')
self._speed = speed/100.0
def __call__(self, tank):
tank.setTurretAngle(tank._tAngle + tank.TURRET_TURN_RATE*self._speed)
class TurretSet(Function.Function):
"""turretset([angle])
Set the turret to the given angle, in degrees, relative to the front of
the tank. Angles increase counterclockwise.
The angle can be left out; in that case, this locks the turret
to it's current position."""
def __init__(self, angle=None):
# Convert the angle to radians
if angle is not None:
angle = self._convertAngle(angle, 'turret angle')
self._angle = angle
def __call__(self, tank):
tank.setTurretAngle(self._angle)
class Fire(Function.Function):
"""fire()
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Attempt to fire the tanks laser cannon.
It's range is 50% of your sensor range."""
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def __call__(self, tank):
tank.setFire()
class SetToggle(Function.Function):
"""settoggle(key, state)
Set toggle 'key' to 'state'.
"""
def __init__(self, key, state):
self._key = key
self._state = state
def __call__(self, tank):
tank.toggles[self._key] = self._state
class Toggle(Function.Function):
"""toggle(key)
Toggle the value of toggle 'key'.
"""
def __init__(self, key):
self._key = key
def __call__(self, tank):
tank.toggles[key] = not tank.toggles[key]
class LED(Function.Function):
"""led(state)
Set the tanks LED to state (true is on, false is off).
The led is a light that appears behind the tanks turret.
It remains on for a single turn."""
def __init__(self, state=1):
self._state = state
def __call__(self, tank):
tank.led = self._state
class StartTimer(Function.Function):
"""starttimer(#)
Start (and reset) the given timer, but only if it is inactive.
"""
def __init__(self, key):
self._key = key
def __call__(self, tank):
tank.resetTimer(key)
class ClearTimer(Function.Function):
"""cleartimer(#)
Clear the given timer such that it is no longer active (inactive timers
are always False)."""
def __init__(self, key):
self._key = key
def __call__(self, tank):
tank.clearTimer(self._key)
### When adding names to this dict, make sure they are lower case and alpha
### numeric.
actions = {'move': Move,
'turretccw': TurretCounterClockwise,
'turretcw': TurretClockwise,
'turretset': TurretSet,
'fire': Fire,
'settoggle': SetToggle,
'toggle': Toggle,
'led': LED,
'starttimer': StartTimer,
'cleartimer': ClearTimer}