Thread: Making a method to move blocks in a grid

That is wrong. What are those single letter variables?

Originally Posted by geforce

for every row equal to 0 to BLOCKROWS
for every column equal to 0 to NBLOCKS
create x and y to compute location
create colour
perform addbrick
create row
create column
perform i * j
add (i * j) to list
return the list

Do you mean the variables in i and j?

if so i is the row and j is the column ohhh, so

create row
create column

create x and get y to compute location ????

create i
create j
perform i * j
add (i * j) to list

None of the above makes any sense to me. If i and j are the loop variables, what does "create" mean?

create x

You would compute the value of x outside the inner loop because it would apply to all the shapes being created in the inner loop.

perform row * ROWSEPARATION + ROWZERO
perform column * BLOCKWIDTH
(add row and column) add to list location

These make no sense to me. Can you explain what each of them means?

Is Y also computed outside the loop?

It says that:
The i'th row of blocks has its upper edge aligned with i (row) * ROWSEPARATION +ROWZERO.

The j'th column of blocks has its left edge aligned with j (column) * BLOCKWIDTH

since the column depends on the row , row + column would be the answer

Is Y also computed outside the loop?

How can it? It is where the shapes go on the current row.

Look at the drawing you made of the grid you are building. See how the values of the locations where each shape goes relates to the row and column and how the values of the uppercase constant variables determine where the next shape goes.

None of those last two posts makes any sense to me.

That's it for tonight. Back tomorrow.

Any luck on getting a design for your project?