Sugar Labs

Activities/Turtle in a Pond: Difference between revisions

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In the '''default strategy''', it looks for a path to the edge in the direction it was already heading.
In this version, it looks for a path to the edge in the direction it was already heading.


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             self._orientation = (i + n) % 6
             self._orientation = (i + n) % 6
             return self._dot_to_grid(dots[(i + n) % 6])
             return self._dot_to_grid(dots[(i + n) % 6])
    return turtle
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In the '''default strategy''', a weighting function is used: preference is given to dots closer to the edges.
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def _turtle_strategy(self, turtle):
    dots = self._surrounding_dots(turtle)
    for i in range(6):\n\
        if self._dots[dots[i]].type is None:
            self._orientation = i
            return self._dot_to_grid(dots[i])
    dots_ordered_by_weight = self._ordered_weights(turtle)
    for i in range(6):
        self._orientation = dots.index(dots_ordered_by_weight[i])
        if self._daylight_ahead(turtle):
            return self._dot_to_grid(dots[self._orientation])
    n = int(uniform(0, 6))
    for i in range(6):
        if not self._dots[dots[(i + n) % 6]].type:
            self._orientation = (i + n) % 6
            return self._dot_to_grid(dots[(i + n) % 6])
    self._orientation = (i + n) % 6
     return turtle
     return turtle
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;self._surrounding_dots((column, row)): returns an array of dots surrounding a given position in the grid
;self._surrounding_dots((column, row)): returns an array of dots surrounding a given position in the grid
;self._daylight_ahead((column, row)): returns True if there is a clear path to the edge heading in the current direction
;self._daylight_ahead((column, row)): returns True if there is a clear path to the edge heading in the current direction
:self._ordered_weights((column, row)): returns an array of surrounding dots ordered by their distance from the edge
;self._dots: the array of dots from which you can test the type attribute (self._dots[i].type==None → edge; self._dots[i].type==False → open; self._dots[i].type==True → blocked)
;self._dots: the array of dots from which you can test the type attribute (self._dots[i].type==None → edge; self._dots[i].type==False → open; self._dots[i].type==True → blocked)
;self._orientation:you can set the orientation of your turtle by assigning a number from 0-5 (clockwise beginning with 30 degrees from north)
;self._orientation:you can set the orientation of your turtle by assigning a number from 0-5 (clockwise beginning with 30 degrees from north)
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