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-rw-r--r--src/field.zig69
1 files changed, 40 insertions, 29 deletions
diff --git a/src/field.zig b/src/field.zig
index ef5e6ea..bf170fb 100644
--- a/src/field.zig
+++ b/src/field.zig
@@ -5,17 +5,17 @@ const Line = struct {
x: i64 = 0,
data: std.ArrayList(i64),
fn blank(l: *Line, x: i64) void {
- const lx = @intCast(i64, l.len());
+ const lx: i64 = @intCast(l.len());
if (x < l.x or x > l.x + lx - 1) { // outside the field
return;
} else if (x > l.x and x < l.x + lx - 1) { // just set the value
- l.data.items[@intCast(usize, x - l.x)] = ' ';
+ l.data.items[@intCast(x - l.x)] = ' ';
} else if (lx == 1) { // this was the last character on the line
l.data.items.len = 0;
} else if (x == l.x) { // we need to remove leading spaces
var i: usize = 1;
while (l.data.items[i] == ' ') : (i += 1) {}
- l.x += @intCast(i64, i);
+ l.x += @intCast(i);
std.mem.copy(i64, l.data.items[0 .. l.len() - i], l.data.items[i..]);
l.data.items.len -= i;
} else { // we need to remove trailing spaces
@@ -66,7 +66,8 @@ const Line = struct {
self.allocator.destroy(self);
}
fn get(l: *Line, x: i64) i64 {
- if (x >= l.x and x < l.x + @intCast(i64, l.len())) return l.data.items[@intCast(usize, x - @intCast(i64, l.x))];
+ const ll: i64 = @intCast(l.len());
+ if (x >= l.x and x < l.x + ll) return l.data.items[@intCast(x - l.x)];
return ' ';
}
fn init(allocator: std.mem.Allocator) !*Line {
@@ -84,10 +85,10 @@ const Line = struct {
try l.data.append(v);
return;
}
- const lx = @intCast(i64, l.len());
+ const lx: i64 = @intCast(l.len());
if (x >= l.x) {
if (x < l.x + lx) { // just set the value
- l.data.items[@intCast(usize, x - l.x)] = v;
+ l.data.items[@intCast(x - l.x)] = v;
} else { // we need to add trailing spaces
var i: usize = l.len();
while (i < x - l.x) : (i += 1) {
@@ -97,12 +98,12 @@ const Line = struct {
}
} else { // we need to shift right and add leading spaces
const oldLen = l.len();
- l.data.items.len += @intCast(usize, l.x - x);
+ l.data.items.len += @intCast(l.x - x);
try l.data.ensureUnusedCapacity(l.len());
- std.mem.copyBackwards(i64, l.data.items[@intCast(usize, l.x - x)..], l.data.items[0..oldLen]);
+ std.mem.copyBackwards(i64, l.data.items[@intCast(l.x - x)..], l.data.items[0..oldLen]);
l.data.items[0] = v;
var i: usize = 1;
- while (i < @intCast(usize, l.x - x)) : (i += 1) {
+ while (i < l.x - x) : (i += 1) {
l.data.items[i] = ' ';
}
l.x = x;
@@ -150,10 +151,11 @@ pub const Field = struct {
lines: std.ArrayList(*Line),
lx: usize = 0,
pub fn blank(f: *Field, x: i64, y: i64) !void {
- const ly = @intCast(i64, f.lines.items.len);
+ const ly = f.lines.items.len;
if (ly == 0) return error.EmptyFieldError;
- if (y < f.y or y >= f.y + ly) return; // outside the field
- var l = f.lines.items[@intCast(usize, y - f.y)];
+ const lly: i64 = @intCast(ly);
+ if (y < f.y or y >= f.y + lly) return; // outside the field
+ var l = f.lines.items[@intCast(y - f.y)];
if (l.len() == 0) return; // the line is already empty
l.blank(x);
if (l.len() == 0) {
@@ -165,27 +167,29 @@ pub const Field = struct {
while (f.lines.items[i].len() == 0) : (i += 1) {
f.lines.items[i].deinit();
}
- f.y += @intCast(i64, i);
+ f.y += @intCast(i);
std.mem.copy(*Line, f.lines.items[0 .. f.lines.items.len - i], f.lines.items[i..]);
f.lines.items.len -= i;
- } else if (y == f.y + ly - 1) { // we need to remove trailing lines
+ } else if (y == f.y + lly - 1) { // we need to remove trailing lines
l.deinit();
- var i: usize = @intCast(usize, ly) - 2;
+ var i: usize = ly - 2;
while (f.lines.items[i].len() == 0) : (i -= 1) {
f.lines.items[i].deinit();
}
f.lines.items.len = i + 1;
}
}
- if (x == f.x or x == f.x + @intCast(i64, f.lx) - 1) { // recalculate boundaries
+ const flx: i64 = @intCast(f.lx);
+ if (x == f.x or x == f.x + flx - 1) { // recalculate boundaries
f.x = std.math.maxInt(i64);
var x2: i64 = std.math.minInt(i64);
for (f.lines.items) |line| {
if (line.len() == 0) continue;
if (f.x > line.x) f.x = line.x;
- if (x2 < line.x + @intCast(i64, line.len())) x2 = line.x + @intCast(i64, line.len());
+ const ll: i64 = @intCast(line.len());
+ if (x2 < line.x + ll) x2 = line.x + ll;
}
- f.lx = @intCast(usize, x2 - f.x);
+ f.lx = @intCast(x2 - f.x);
}
}
test "blank" {
@@ -241,11 +245,12 @@ pub const Field = struct {
self.allocator.destroy(self);
}
pub fn get(f: *Field, x: i64, y: i64) i64 {
- if (y >= f.y and y < f.y + @intCast(i64, f.lines.items.len)) return f.lines.items[@intCast(usize, y - @intCast(i64, f.y))].get(x);
+ const fl: i64 = @intCast(f.lines.items.len);
+ if (y >= f.y and y < f.y + fl) return f.lines.items[@intCast(y - f.y)].get(x);
return ' ';
}
pub fn getSize(f: Field) [4]i64 {
- return [4]i64{ f.x, f.y, @intCast(i64, f.lx), @intCast(i64, f.lines.items.len) };
+ return [4]i64{ f.x, f.y, @intCast(f.lx), @intCast(f.lines.items.len) };
}
fn init(allocator: std.mem.Allocator) !*Field {
var f = try allocator.create(Field);
@@ -266,7 +271,9 @@ pub const Field = struct {
return f;
}
inline fn isIn(f: *Field, x: i64, y: i64) bool {
- return x >= f.x and y >= f.y and x < f.x + @intCast(i64, f.lx) and y < f.y + @intCast(i64, f.lines.items.len);
+ const fl: i64 = @intCast(f.lines.items.len);
+ const flx: i64 = @intCast(f.lx);
+ return x >= f.x and y >= f.y and x < f.x + flx and y < f.y + fl;
}
fn load(f: *Field, reader: anytype) !void {
if (f.lines.items.len > 1 or f.lx > 0) return error.FIELD_NOT_EMPTY;
@@ -334,8 +341,9 @@ pub const Field = struct {
pub fn set(f: *Field, x: i64, y: i64, v: i64) !void {
if (v == ' ') return f.blank(x, y);
if (y >= f.y) {
- if (y < f.y + @intCast(i64, f.lines.items.len)) { // the line exists
- try f.lines.items[@intCast(usize, y - f.y)].set(x, v);
+ const fl: i64 = @intCast(f.lines.items.len);
+ if (y < f.y + fl) { // the line exists
+ try f.lines.items[@intCast(y - f.y)].set(x, v);
} else { // append lines
var i: usize = f.lines.items.len;
while (i < y - f.y) : (i += 1) {
@@ -347,27 +355,30 @@ pub const Field = struct {
}
} else { // preprend lines
const oldLen = f.lines.items.len;
- f.lines.items.len += @intCast(usize, f.y - y);
+ const dl: usize = @intCast(f.y - y);
+ f.lines.items.len += dl;
try f.lines.ensureUnusedCapacity(f.lines.items.len);
- std.mem.copyBackwards(*Line, f.lines.items[@intCast(usize, f.y - y)..], f.lines.items[0..oldLen]);
+ std.mem.copyBackwards(*Line, f.lines.items[dl..], f.lines.items[0..oldLen]);
var l = try Line.init(f.allocator);
try l.set(x, v);
f.lines.items[0] = l;
var i: usize = 1;
- while (i < @intCast(usize, f.y - y)) : (i += 1) {
+ while (i < f.y - y) : (i += 1) {
f.lines.items[i] = try Line.init(f.allocator);
}
f.y = y;
}
- if (x < f.x or x >= f.x + @intCast(i64, f.lx)) { // recalculate boundaries
+ const flx: i64 = @intCast(f.lx);
+ if (x < f.x or x >= f.x + flx) { // recalculate boundaries
f.x = std.math.maxInt(i64);
var x2: i64 = std.math.minInt(i64);
for (f.lines.items) |line| {
if (line.len() == 0) continue;
if (f.x > line.x) f.x = line.x;
- if (x2 < line.x + @intCast(i64, line.len())) x2 = line.x + @intCast(i64, line.len());
+ const ll: i64 = @intCast(line.len());
+ if (x2 < line.x + ll) x2 = line.x + ll;
}
- f.lx = @intCast(usize, x2 - f.x);
+ f.lx = @intCast(x2 - f.x);
}
return;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-13 16:23:47 +0000