ICode Competition – Python Quick Reference

Legend: 🔵 action / None return · 🟢 property int · 🔴 predicate bool

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Dev – The walking character

Dev is the only object that can move backwards (step(-N)).

Spaceship – The delivery vehicle

To reverse: call turnRight() (or turnLeft()) twice, then step(N).

Item / Item[i] – Collectible tiles

Distance formula (when Dev faces increasing axis direction):

d = Item.x - Dev.x   # or Item.y - Dev.y
Dev.step(d)          # works for both positive and negative d

Safe-collect pattern:

for i in range(len_items):
    if not Item[i].broken():
        Dev.step(Item[i].y - Dev.y)
        # collect logic here

Flyer / Flyer[i] – Flying board list (platforms)

What are Flyers for?

Flyers are moving platforms, not gap-fillers you place statically. Think of them as conveyor tiles that travel in a fixed direction. Their arrow tells you the axis and direction; you code how far each one slides.

They are indexed from 0 like a list. Use the loop variable i to address them:

for i in range(3):
    Flyer[i].step(i * 2)   # each board moves a different distance

Disappear mechanic – boards randomly vanish (turn green). Use wait() inside a while loop to pause until the board is back:

while Flyer[0].disappear():
    wait()
# board is visible again – safe to proceed

Gap bridging? Indirectly yes – by positioning Flyers with step() you can line them up to create a traversable path across a gap, but it is a scripted bridge, not a passive tile you drop in place.

Control-flow cheatsheet (Python subset used)

# Loop N times
for i in range(N):
    ...

# Conditional
if condition:
    ...
elif other_condition:
    ...
else:
    ...

# Boolean helpers on conditions
if not Item[i].broken(): ...
if Item[i].broken() or Flyer[0].disappear(): ...
if Item[i].x > Dev.x and not Item[i].broken(): ...

# Wait loop
while Flyer[0].disappear():
    wait()

# Function with parameters
def collect(a, b):
    Dev.step(a)
    Dev.turnRight()
    Dev.step(b)

collect(3, 2)

Quick “is it a bool or an action?” rule of thumb