Basically, when you save a game, it saves the entire map too. This includes the types and locations of all of the blocks. The save file can be modified to remove the unbreakable blocks.
I have SL4A and Python installed on my Android device, so I wrote a Python script I can run on my device to make the changes for me. If needed, you can also copy the file to a PC, run the script, and then copy it back. Note, however, that the script has to be run on every new level. Being able to run the script on the device is a lot more convenient.
Here is the script. It assumes your saved game file is on the SD card. I don't think you can modify the save file in the "Phone" slot unless your device is rooted.
#!/usr/bin/python
# Replace gray blocks with regular blocks on Android app Robominer
#
# 01-15-2013: Created by BitJunkie
# 01-16-2013: For gray blocks, generate random mineral type
# 01-22-2013: Block info starts 3 bytes before 0x3f80, adjust file pointer info
import random
count=0
random.seed()
# Open the file in binary mode for reading and writing
fh=open("/sdcard/Android/data/com.rnet.robominer/files/last_1.sav","rb+")
# Go to the beginning of the block info +3 bytes, from the beginning of the file
fh.seek(0x30, 0)
header = fh.read(2)
while header == b"\x3f\x80":
fh.seek(-4,1) # Move file pointer to start of block info
blk = fh.read(1)
if blk == b"\x01": # if block is gray
fh.seek(-1,1)
fh.write(b"\x02") # Make it regular
r = random.sample(["\x01","\x02","\x03","\x04","\x05","\x06","\x07","\x08","\x09","\x0a","\x0b","\x0c","\x0d","\x0e","\x0f","\x10","\x11","\x12"],1)
fh.write(r[0]) # Add random mineral/element
fh.seek(13,1) # Go to next block
count+=1 # Count how many blocks are changed
else:
# Go to next block header
fh.seek(14,1)
header = fh.read(2)
print "Blocks changed: %d" % count
I have only used this for games on the "Easy" level. I'm sure the script would have to be modified for the higher difficulties.
Have fun!
