diff options
author | Julien Dessaux | 2021-10-05 22:46:37 +0200 |
---|---|---|
committer | Julien Dessaux | 2021-10-05 22:46:37 +0200 |
commit | f6bd9fa1a8e541c4aaae7272f38a6e73e2b3e233 (patch) | |
tree | 90f17a8504ddb032c5b9d7ede3958dfb899c19c7 /src | |
parent | Refactoring (diff) | |
download | nimfunge98-f6bd9fa1a8e541c4aaae7272f38a6e73e2b3e233.tar.gz nimfunge98-f6bd9fa1a8e541c4aaae7272f38a6e73e2b3e233.tar.bz2 nimfunge98-f6bd9fa1a8e541c4aaae7272f38a6e73e2b3e233.zip |
Implemented steps over a funge space field
Diffstat (limited to '')
-rw-r--r-- | src/field.nim | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/field.nim b/src/field.nim index e15d7b4..a9d706e 100644 --- a/src/field.nim +++ b/src/field.nim @@ -198,3 +198,18 @@ func Set*(f: var Field, x, y, v: int) = f.x = x if f.lx < x-f.x+1: f.lx = x-f.x+1 + +func Step*(f: Field, v: tuple[x, y: int], d: tuple[x, y: int]): (int, int) = + var x = v.x + d.x + var y = v.y + d.y + if f.IsIn(x, y): + return (x, y) + # We are stepping outside, we need to wrap the Lahey-space + x = v.x + y = v.y + while true: + let x2 = x - d.x + let y2 = y - d.y + if not f.IsIn(x2, y2): + return (x, y) + x = x2; y = y2 |