Hardware Reference
In-Depth Information
3.
Use the
random
function to place the treasure at a position no more than
RANGE
blocks away from the player, but set the y coordinate so that it is somewhere
above the player (which will probably place it in the sky):
treasure_x = random.randint(pos.x, pos.x+RANGE)
treasure_y = random.randint(pos.y+2, pos.y+RANGE)
treasure_z = random.randint(pos.z, pos.z+RANGE)
mc.setBlock(treasure_x, treasure_y, treasure_z,
block.DIAMOND_BLOCK.id)
Run your program and test that a piece of treasure is created up in the sky, near where
your player is standing.
Collecting Treasure when It Is Hit
Now you will use the code from the
blockHit.py
program with a few small modifica-
tions to detect when the treasure is hit by your player's sword.
1.
Remove the
print
statement from the
checkHit()
function and replace it
with the code shown here. The
score
and
treasure_x
variables have to be
listed as global variables here, because the
checkHit()
function will change
their values. Python requires you to list inside a function, any global variables
that it changes the value of. If you don't do this, your program will not work:
def checkHit():
global score
global treasure_x
2.
Read through any block-hit events and check if the position matches the posi-
tion of your treasure:
events = mc.events.pollBlockHits()
for e in events:
pos = e.pos
if pos.x == treasure_x and pos.y == treasure_y
↩
pos.z == treasure_z:
mc.postToChat("HIT!")
3.
Now you are going to tell your program to add points to the
score
for hitting
the treasure, then delete the treasure so it disappears. Finally, you must remem-
ber to set
treasure_x
to
None
(so that
placeTreasure()
can create a new
random piece of treasure later). Be careful with the indents here, as this code is
part of the body of the
if
statement:
score = score + 10
mc.setBlock(treasure_x, treasure_y, treasure_z,
block.AIR.id)
treasure_x = None
