Debugging

var i, j;
i = argument0;
j = argument1;
if (debug_mode) show_message("Before Loops: i = " + string(i) + "#j = " + string(j));
while(i != argument2)
{
    i += sign(argument2 - i);
    tile[i, j] = 0;
    if (debug_mode) if (!show_question("while (" + string(i) + " != " + string(argument2) + ")#In Loop 1: i = " + string(i) + "#j = " + string(j))) break;
}
while(j != argument3)
{
    j += sign(argument3 - j);
    tile[i, j] = 0;
    if (debug_mode) if (!show_question("while (" + string(j) + " != " + string(argument3) + ")#In Loop 2: i = " + string(i) + "#j = " + string(j) + "##Yes = Continue#No  = break")) break;
}