Anyone remember the little Minecraft clone I made a while ago (MCL)? Well, I'm making a 2D Minecraft clone in CASIO-BASIC. Here it is:

In game controls:
ARROW KEYS: Move and Jump
EXIT: Return to Menu

Main Menu controls:
[1] Key: Make a new world
[2] Key: Load world from Matrix C
[3] Key: Exit MClite

Some info about the save file:
MClite saves into a 7 tall by 21 wide matrix, always Mat C. The data values for the blocks are as follows:

Data value	Block
0	Empty (Air)
1	□ (Empty Square)
2	■ (Filled Square)
9	I (Player)

DOWNLOAD BELOW!
File is MCL.G1M (attached to post)

Yes there will be. I'm planning for the filled diamond shape to be coal and the empty diamond shape to be iron ore. Crafting and smelting will actually be pretty easy to implement (horray for matrices).

I wonder how large matrices are on this calc?

999x999 max.

I like this. It works on my Prizm.

How did you do the jumping exactly? I'm assuming that you can move in mid-air for simplification purposes and saw that the character can jump three blocks high, and so I ended up with the following piece of code, partially derived from your earlier help thread:
If K=28 And Y<7
   Then If Mat C[Y+1,X]>0
      Then 3->V
   IfEnd
IfEnd

If V>0 And Y>1
   Then If Mat C[Y-1,X]=0
      Then 1->Mat C[Y,X]
      Locate X,Y," "
      Y-1->Y
      9->Mat C[Y,X]
      Locate X,Y,"I"
      V-1->V
      Else 0->V
   IfEnd
   Else 0->V
IfEnd
The 'Else 0->V' parts are there to set the upward moving speed to 0 as soon as the top of the screen is reached or if there is a solid block above the character. Also, to make this work properly the condition for the falling If-statement has to have 'And V=0' in it. I don't know whether it's quite what you did but at least the effect is the same.