diff options
Diffstat (limited to 'src/field.zig')
| -rw-r--r-- | src/field.zig | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/field.zig b/src/field.zig index 079bb81..6062e3c 100644 --- a/src/field.zig +++ b/src/field.zig @@ -1,5 +1,7 @@ const std = @import("std"); +const position = struct { x: i64, y: i64 }; + const Line = struct { allocator: std.mem.Allocator, x: i64 = 0, @@ -16,7 +18,7 @@ const Line = struct { var i: usize = 1; while (l.data.items[i] == ' ') : (i += 1) {} l.x += @intCast(i); - std.mem.copy(i64, l.data.items[0 .. l.len() - i], l.data.items[i..]); + std.mem.copyForwards(i64, l.data.items[0 .. l.len() - i], l.data.items[i..]); l.data.items.len -= i; } else { // we need to remove trailing spaces var i: usize = l.len() - 1; @@ -168,7 +170,7 @@ pub const Field = struct { f.lines.items[i].deinit(); } f.y += @intCast(i); - std.mem.copy(*Line, f.lines.items[0 .. f.lines.items.len - i], f.lines.items[i..]); + std.mem.copyForwards(*Line, f.lines.items[0 .. f.lines.items.len - i], f.lines.items[i..]); f.lines.items.len -= i; } else if (y == f.y + lly - 1) { // we need to remove trailing lines l.deinit(); @@ -259,7 +261,7 @@ pub const Field = struct { f.x = undefined; f.y = 0; f.lines = std.ArrayList(*Line).init(allocator); - var l = try f.lines.addOne(); + const l = try f.lines.addOne(); l.* = try Line.init(allocator); f.lx = 0; return f; @@ -282,7 +284,7 @@ pub const Field = struct { var y: i64 = 0; while (true) { var buffer: [4096]u8 = undefined; - var l = try reader.read(buffer[0..]); + const l = try reader.read(buffer[0..]); if (l == 0) return; var i: usize = 0; while (i < l) : (i += 1) { @@ -411,7 +413,7 @@ pub const Field = struct { try std.testing.expectEqual(f.get(8, 2), '2'); try std.testing.expectEqual(f.get(9, 2), ' '); } - pub fn step(f: *Field, x: i64, y: i64, dx: i64, dy: i64, smartAdvance: bool, jumping: bool) struct { x: i64, y: i64 } { + pub fn step(f: *Field, x: i64, y: i64, dx: i64, dy: i64, smartAdvance: bool, jumping: bool) position { var a = x + dx; var b = y + dy; if (!f.isIn(a, b)) { @@ -419,8 +421,8 @@ pub const Field = struct { a = x; b = y; while (true) { - var c = a - dx; - var d = b - dy; + const c = a - dx; + const d = b - dy; if (!f.isIn(c, d)) break; a = c; b = d; @@ -445,15 +447,15 @@ pub const Field = struct { var f = try Field.init(std.testing.allocator); defer f.deinit(); try f.load(minimal.reader()); - try std.testing.expectEqual(f.step(0, 0, 0, 0, false, false), .{ .x = 0, .y = 0 }); - try std.testing.expectEqual(f.step(0, 0, 1, 0, false, false), .{ .x = 0, .y = 0 }); + try std.testing.expectEqual(f.step(0, 0, 0, 0, false, false), @as(position, .{ .x = 0, .y = 0 })); + try std.testing.expectEqual(f.step(0, 0, 1, 0, false, false), @as(position, .{ .x = 0, .y = 0 })); var hello = std.io.fixedBufferStream("64+\"!dlroW ,olleH\">:#,_@\n"); var fHello = try Field.init(std.testing.allocator); defer fHello.deinit(); try fHello.load(hello.reader()); - try std.testing.expectEqual(fHello.step(3, 0, 0, 0, false, false), .{ .x = 3, .y = 0 }); - try std.testing.expectEqual(fHello.step(3, 0, 1, 0, false, false), .{ .x = 4, .y = 0 }); - try std.testing.expectEqual(fHello.step(0, 0, -1, 0, false, false), .{ .x = 23, .y = 0 }); + try std.testing.expectEqual(fHello.step(3, 0, 0, 0, false, false), @as(position, .{ .x = 3, .y = 0 })); + try std.testing.expectEqual(fHello.step(3, 0, 1, 0, false, false), @as(position, .{ .x = 4, .y = 0 })); + try std.testing.expectEqual(fHello.step(0, 0, -1, 0, false, false), @as(position, .{ .x = 23, .y = 0 })); } }; |