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Implemented the { (aka begin) funge command

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This commit is contained in:
Julien Dessaux 2022-08-06 09:44:47 +02:00
parent 15c75b9f69
commit 28d9795fde
Signed by: adyxax
GPG key ID: F92E51B86E07177E
2 changed files with 64 additions and 2 deletions
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10
src/pointer.zig
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@ -152,8 +152,14 @@ pub const Pointer = struct {
':' => try p.ss.toss.duplicate(),
'\\' => try p.ss.toss.swap(),
'n' => p.ss.toss.clear(),
// TODO
'{' => return error.NotImplemented,
'{' => {
p.ss.begin([2]i64{ p.sox, p.soy }) catch {
p.reverse();
return null;
};
p.sox = p.x + p.dx;
p.soy = p.y + p.dy;
},
// TODO
'}' => return error.NotImplemented,
// TODO

56
src/stackStack.zig
View file

@ -22,6 +22,62 @@ pub const StackStack = struct {
ss.toss = try stack.Stack.init(allocator);
return ss;
}
pub fn begin(self: *StackStack, v: [2]i64) !void {
var soss = self.toss;
try self.data.append(soss);
var n = soss.pop();
self.toss = try stack.Stack.init(self.allocator);
if (n > 0) {
try self.toss.transfert(soss, @intCast(u64, n));
} else if (n < 0) {
var i: usize = 0;
while (i < -n) : (i += 1) {
try soss.push(0);
}
}
try soss.pushVector(v);
}
test "begin" {
var empty = try StackStack.init(std.testing.allocator);
defer empty.deinit();
try empty.begin([2]i64{ 1, 2 });
const tossResult = [_]i64{};
const sossResult = [_]i64{ 1, 2 };
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[0].data.items, sossResult[0..]);
try empty.toss.push(5);
try empty.toss.push(6);
try empty.toss.push(4);
try empty.begin([2]i64{ 7, 8 });
const tossResult2 = [_]i64{ 0, 0, 5, 6 };
const sossResult2 = [_]i64{ 7, 8 };
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult2[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[0].data.items, sossResult[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[1].data.items, sossResult2[0..]);
try empty.toss.push(9);
try empty.toss.push(10);
try empty.toss.push(11);
try empty.toss.push(12);
try empty.toss.push(2);
try empty.begin([2]i64{ 13, 14 });
const tossResult3 = [_]i64{ 11, 12 };
const sossResult3 = [_]i64{ 0, 0, 5, 6, 9, 10, 13, 14 };
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult3[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[0].data.items, sossResult[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[1].data.items, sossResult2[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[2].data.items, sossResult3[0..]);
try empty.toss.push(15);
try empty.toss.push(16);
try empty.toss.push(-2);
try empty.begin([2]i64{ 17, 18 });
const tossResult4 = [_]i64{};
const sossResult4 = [_]i64{ 11, 12, 15, 16, 0, 0, 17, 18 };
try std.testing.expectEqualSlices(i64, empty.toss.data.items, tossResult4[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[0].data.items, sossResult[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[1].data.items, sossResult2[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[2].data.items, sossResult3[0..]);
try std.testing.expectEqualSlices(i64, empty.data.items[3].data.items, sossResult4[0..]);
}
pub inline fn toss(self: *StackStack) *stack.Stack {
return self.toss;
}