RosettaCodeData/Task/Zig-zag-matrix/M2000-Interpreter/zig-zag-matrix.m2000
2026-02-01 16:33:20 -08:00

48 lines
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Module Lib1 {
Module Global PrintArray(&Ar()) {
if dimension(Ar())<>2 then Error "This is for 2D arrays"
integer i, j, n=dimension(Ar(),1), n1=dimension(Ar(),2)
for i=1 to n
for j=1 to n1
print Ar(i, j),
next
print
next
}
Function Global MakeArray(n as integer=5) {
dim a(1 to n, 1 to n) as integer=0
integer i=1, j=1, z, t1=1
boolean ch=true
for z=0 to n*n-1
if ch then a(i,j)=z else a(j,i)=z
j++
if j>t1 then t1++: j=1:i=t1: ch~ else i--
if i<1 then i=t1 else.if i>n then i=n: j++
if j>n then j=i+2: i=n:ch~
next
=a() // return array (as a pointer)
}
}
Module Zig_Zag_Matrix (n as integer=5) {
Pen 15 {Report "matrix "+n+"x"+n}
integer old_column=tab
Print $(,4) // set column to 4 chars
if random(1,2)=2 then
dim ret()
ret()=makeArray(n) // this get a copy
else
object a=makeArray(n) // but this get the copy of pointer
link a to ret() // ret() is reference to a, to array
end if
PrintArray &ret()
Print $(,old_column)
}
Inline Code Lib1 // just execute the code from module lib1 like was here
Form 60, 36 \\ console 60x36 characters
Report 2, "Zig-zag matrix" // 2 for center
Pen 14 {Zig_Zag_Matrix 1}
Pen 11 {Zig_Zag_Matrix 2}
Pen 14 {Zig_Zag_Matrix 3}
Pen 11 {Zig_Zag_Matrix 4}
Pen 14 {Zig_Zag_Matrix 5}
Pen 11 {Zig_Zag_Matrix 10}