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Implemented the under funge command

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This commit is contained in:
Julien Dessaux 2022-08-08 21:41:55 +02:00
parent b5bfb6f025
commit 362fdc1118
Signed by: adyxax
GPG key ID: F92E51B86E07177E
2 changed files with 54 additions and 2 deletions
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7
src/pointer.zig
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@ -169,8 +169,11 @@ pub const Pointer = struct {
p.reverse();
}
},
// TODO
'u' => return error.NotImplemented,
'u' => {
if (p.ss.under() catch true) {
p.reverse();
}
},
'g' => {
const v = p.ss.toss.popVector();
try p.ss.toss.push(p.field.get(v[0] + p.sox, v[1] + p.soy));

49
src/stackStack.zig
View file

@ -119,6 +119,55 @@ pub const StackStack = struct {
try std.testing.expectEqual(empty.end(), [2]i64{ 8, 9 });
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult[0..]);
}
pub fn under(self: *StackStack) !bool {
if (self.data.items.len == 0) {
return true;
}
const n = self.toss.pop();
var soss = self.data.items[self.data.items.len - 1];
if (n > 0) {
var i: usize = 0;
while (i < n) : (i += 1) {
try self.toss.push(soss.pop());
}
} else {
var i: usize = 0;
while (i < -n) : (i += 1) {
try soss.push(self.toss.pop());
}
}
return false;
}
test "under" {
var empty = try StackStack.init(std.testing.allocator);
defer empty.deinit();
try empty.toss.push(1);
try std.testing.expectEqual(empty.under(), true);
const tossResult = [_]i64{1};
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult[0..]);
try empty.toss.push(2);
try empty.toss.push(3);
try empty.toss.push(4);
try empty.toss.push(5);
try empty.toss.push(6);
try empty.toss.push(0);
try empty.begin([2]i64{ 7, 8 });
try empty.toss.push(9);
try empty.toss.push(0);
try std.testing.expectEqual(empty.under(), false);
const tossResult2 = [_]i64{9};
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult2[0..]);
try empty.toss.push(2);
try std.testing.expectEqual(empty.under(), false);
const tossResult3 = [_]i64{ 9, 8, 7 };
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult3[0..]);
try empty.toss.push(-1);
try std.testing.expectEqual(empty.under(), false);
const tossResult4 = [_]i64{ 9, 8 };
const sossResult = [_]i64{ 1, 2, 3, 4, 5, 6, 7 };
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult4[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[0].data.items, sossResult[0..]);
}
pub inline fn toss(self: *StackStack) *stack.Stack {
return self.toss;
}