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feat: update undercurl thickness and wave height

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This commit is contained in:
Matthew Winter
2023-10-31 21:23:53 +11:00
parent 27ddc90c18
commit 60b69a32d0
1 changed files with 3 additions and 5 deletions
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8
src/font/sprite/underline.zig
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@ -175,10 +175,8 @@ const Draw = struct {
// cell height and this doesn't allow us to make a high enough
// wave. This constant is arbitrary, change it for aesthetics.
const pos: u32 = pos: {
const MIN_HEIGHT = 5;
const clamped_pos = @min(y_max, self.pos);
const height = y_max - clamped_pos;
break :pos if (height < MIN_HEIGHT) clamped_pos -| MIN_HEIGHT else clamped_pos;
const MIN_HEIGHT: u32 = @max(self.height / 10, 3);
break :pos y_max - (MIN_HEIGHT * 2);
};
// The full height of the wave can be from the bottom to the
@ -192,7 +190,7 @@ const Draw = struct {
while (x < self.width) : (x += 1) {
const y: f64 = @as(f64, @floatFromInt(y_mid)) + (half_height * @cos(@as(f64, @floatFromInt(x)) * x_factor));
const y_upper: u32 = @intFromFloat(@floor(y));
const y_lower: u32 = y_upper - 1 + self.thickness;
const y_lower: u32 = y_upper + self.thickness;
const alpha: u8 = @intFromFloat(255 * @abs(y - @floor(y)));
// upper and lower bounds