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Update race_behaviours.py #2

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41 changes: 41 additions & 0 deletions src/race_behaviours.py
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Original file line number Diff line number Diff line change
Expand Up @@ -73,6 +73,47 @@ def onDraw(self):
self.ctx.strip.setPixelColor(i,Color(*self.ctx.baseColor))
self.ctx.strip.show()

@Associate("fullstop")
class StopItNow(Behaviour):
index = 0
goingUp = 1
power_ratio = 0
def onEnter(self):
getLogger().getChild(LOG_TAG).debug("Enter %s" % (type(self).__name__))
self.color = Color(0,0,0)
self.launchSubtask(self.update())

#TODO Lifetime issue here as this task could outlive the parent. Add Awaitable subtasks?
self.loop.create_task(self.ctx.throttle_ctrl.lerpThrottle(self.power_ratio, 1))

def onExit(self):
getLogger().getChild(LOG_TAG).debug("Exit %s" % (type(self).__name__))

async def onPreExit(self):
getLogger().getChild(LOG_TAG).debug("ExitLERP %s" % (type(self).__name__))
await self.loop.create_task(
self.ctx.throttle_ctrl.lerpThrottle(self.ctx.throttle_ctrl.BASE_RATIO, 0.5)
)

def onDraw(self):
for i in range(self.ctx.strip.numPixels()):
c = self.color
self.ctx.strip.setPixelColor(i,c)
self.ctx.strip.show()

async def update(self):
while True:
await asyncio.sleep(0.1)
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@jazzz jazzz Mar 15, 2018

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While this works great, with co-routines we can simplify things by removing the conditional logic. In a coroutine when you 'await' you are suspending the function, so it resumes where it left off.

async def update():
    n = 255
    while True:
        for x in range(n+1):
            await asyncio.sleep(0.1)
            self.color = Color(x,0,0)
        for x in range(n-1,0,-1):
            await asyncio.sleep(0.1)
            self.color = Color(x,0,0)

Better yet we could also do something like if you wanted to reuse the functionality.

async def update():
    async for x in thereAndBackIncrementor(0,10):
        self.color = Color(x,0,0)
        await asyncio.sleep(0.1)


async def thereAndBackIncrementor(firstVal,lastVal):
    for x in range(lastVal + 1):
        yield x
    for x in range(lastVal - 1, firstVal, -1):
        yield x

if (self.goingUp==1):
self.index +=1
if (self.index==255):
self.goingUp = 0
if (self.goingUp==0):
self.index -=1
if (self.index==0):
self.goingUp = 1
self.color = Color(self.index,0,0)

@Associate("banana")
class BananaPowerup(Behaviour):
index = 0
Expand Down