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feat: add x_facter comment and remove old code

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Matthew Winter
2023-10-29 03:13:17 +11:00
parent a5eb746cf5
commit 6d971de87a
1 changed files with 4 additions and 1 deletions
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5
src/font/sprite/underline.zig
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@ -165,6 +165,10 @@ const Draw = struct {
fn drawCurly(self: Draw, canvas: *font.sprite.Canvas) void {
// This is the lowest that the curl can go.
const y_max = self.height - 1;
// Determines the density of the waves.
// `2 * pi...` = 1 peak per character
// `4 * pi...` = 2 peaks per character
const x_factor = 2 * std.math.pi / @as(f64, @floatFromInt(self.width - 1));
// Some fonts put the underline too close to the bottom of the
@ -181,7 +185,6 @@ const Draw = struct {
// underline position. We also calculate our starting y which is
// slightly below our descender since our wave will move about that.
const wave_height = @as(f64, @floatFromInt(y_max - pos));
//const wave_height = @as(f64, @floatFromInt(y_max - (pos - self.thickness / 2)));
const half_height = @max(1, wave_height / 4);
const y_pos = @as(i32, @intCast(pos)) + @as(i32, @intFromFloat(2 * half_height));