multipleof4/stain.otf
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Feat: Add kerning + minor metrics tweaks

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multipleof4
2025-11-09 13:17:09 -08:00
parent 749e4b0fbd
commit 3043149328
1 changed files with 82 additions and 11 deletions
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93
scripts/build-font.js
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@@ -40,7 +40,10 @@ const styleName="Regular";
const unitsPerEm=1000;
const ascender=800;
const descender=-200;
const defaultAdv=600;
const defaultAdv=580; // slightly tighter default
const wideAdv=700; // for M / W / m / w
const spaceAdv=240; // slightly tighter space
const periodAdv=220; // slightly tighter period
const mkGlyph=(name,unicode,adv,pathFn)=>
new opentype.Glyph({
@@ -50,16 +53,18 @@ const mkGlyph=(name,unicode,adv,pathFn)=>
path:pathFn(new opentype.Path())
});
const glyphSpace=mkGlyph("space"," ".codePointAt(0),260,p=>p);
const glyphSpace=mkGlyph("space"," ".codePointAt(0),spaceAdv,p=>p);
const glyphPeriod=mkGlyph(
"period",
".".codePointAt(0),
260,
periodAdv,
p=>{
p.moveTo(80,0);
p.lineTo(80,120);
p.lineTo(180,120);
p.lineTo(180,0);
const x=80,w=70,h=120;
p.moveTo(x,0);
p.lineTo(x, h);
p.lineTo(x+w, h);
p.lineTo(x+w,0);
p.close();
return p;
}
@@ -92,8 +97,8 @@ const glyphList=[
glyphk(opentype,defaultAdv),
glyphL(opentype,defaultAdv),
glyphl(opentype,defaultAdv),
glyphM(opentype,740),
glyphm(opentype,740),
glyphM(opentype,wideAdv),
glyphm(opentype,wideAdv),
glyphN(opentype,defaultAdv),
glyphn(opentype,defaultAdv),
glyphO(opentype,defaultAdv),
@@ -112,8 +117,8 @@ const glyphList=[
glyphu(opentype,defaultAdv),
glyphV(opentype,defaultAdv),
glyphv(opentype,defaultAdv),
glyphW(opentype,760),
glyphw(opentype,660),
glyphW(opentype,wideAdv),
glyphw(opentype,wideAdv-40),
glyphX(opentype,defaultAdv),
glyphx(opentype,defaultAdv),
glyphY(opentype,defaultAdv),
@@ -132,6 +137,72 @@ const font=new opentype.Font({
copyright:"Author: Anon. License: CC0 1.0 Universal."
});
// basic kerning pairs to reduce obvious gaps
const kernPairs=[
["A","V",-70],
["A","W",-70],
["A","Y",-70],
["A","T",-50],
["A","O",-25],
["A","Q",-25],
["V","A",-70],
["V","O",-40],
["V","a",-50],
["V","o",-50],
["V","e",-45],
["V","u",-40],
["W","A",-70],
["W","O",-40],
["W","a",-50],
["W","o",-50],
["W","e",-45],
["W","u",-40],
["Y","A",-80],
["Y","O",-40],
["Y","a",-70],
["Y","o",-70],
["Y","e",-65],
["Y","u",-55],
["T","A",-60],
["T","O",-40],
["T","a",-70],
["T","o",-70],
["T","e",-65],
["T","u",-60],
["T","y",-50],
["L","T",-50],
["L","V",-70],
["L","W",-70],
["L","Y",-80],
["F","a",-45],
["F","o",-45],
["F","e",-40],
["P","A",-70],
["P","a",-40],
["P","o",-40],
["K","O",-40],
["K","a",-40],
["K","o",-40],
["K","e",-35],
["K","u",-35],
[" ","A",-20],
[" ","V",-15],
[" ","W",-15],
[" ","Y",-15]
];
const glyphIndexByName=name=>{
const g=font.glyphs.glyphs.find(gl=>gl.name===name);
return g?g.index:0;
};
font.kerningPairs=kernPairs.reduce((acc,[l,r,v])=>{
const left=glyphIndexByName(l);
const right=glyphIndexByName(r);
if(left && right) acc[`${left},${right}`]=v;
return acc;
},{});
const buf=Buffer.from(font.toArrayBuffer());
const outPath=path.join(outDir,"Stain.otf");
fs.writeFileSync(outPath,buf);