From e5e104228dc00c5e723651537fc832b43005bcb1 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Thu, 23 Nov 2023 13:35:01 +0100
Subject: use 3d isometric cubes

---
 tools/genpieces.mjs | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 tools/genpieces.mjs

(limited to 'tools/genpieces.mjs')

diff --git a/tools/genpieces.mjs b/tools/genpieces.mjs
new file mode 100644
index 0000000..fd8c3d3
--- /dev/null
+++ b/tools/genpieces.mjs
@@ -0,0 +1,80 @@
+import fs from "fs"
+import { formatHex, parseHex, convertRgbToOklab } from "culori"
+
+function make_piece_colors(base) {
+	let rgb = parseHex(base)
+        let sh1 = convertRgbToOklab(rgb); sh1.l *= 0.9;
+        let sh2 = convertRgbToOklab(rgb); sh2.l *= 0.8;
+        let sh3 = convertRgbToOklab(rgb); sh3.l *= 0.7;
+        let sh4 = convertRgbToOklab(rgb); sh4.l *= 0.4;
+	return [ base, formatHex(sh1), formatHex(sh2), formatHex(sh3), formatHex(sh4) ]
+}
+
+function print_cube(output, c) {
+	let svg = []
+
+	let xo = 0
+	let yo = 0
+	let ys = 2/3
+
+	let w = 14
+	let d = Math.sqrt(w * w + w * w)
+	let h = Math.round(w * 0.8)
+
+	let v = [
+		[ xo + (d/2), yo + (0) * ys ],
+		[ xo + (d), yo + (d/2) * ys ],
+		[ xo + (d/2), yo + (d) * ys ],
+		[ xo + (0), yo + (d/2) * ys ],
+	]
+
+	for (let xy of v) {
+		xy[0] = Math.round(xy[0]) + 0.5
+		xy[1] = Math.round(xy[1]) + 0.5
+	}
+
+	let iw = Math.max(...v.map(xy => xy[0])) + 0.5
+	let ih = Math.max(...v.map(xy => xy[1])) + h + 0.5
+
+	let v2 = [
+		[ v[1][0], v[1][1] ],
+		[ v[1][0], v[1][1] + h ],
+		[ v[2][0], v[2][1] + h ],
+		[ v[3][0], v[3][1] + h ],
+		[ v[3][0], v[3][1] ],
+	]
+
+	let v3 = [
+		[ v[2][0], v[2][1] ],
+		[ v[2][0], v[2][1] + h ],
+	]
+
+	let f1 = [
+		[ v[1][0], v[1][1] ],
+		[ v[1][0], v[1][1] + h ],
+		[ v[2][0], v[2][1] + h ],
+		[ v[2][0], v[2][1] ],
+	]
+
+	let f2 = [
+		[ v[2][0], v[2][1] ],
+		[ v[2][0], v[2][1] + h ],
+		[ v[3][0], v[3][1] + h ],
+		[ v[3][0], v[3][1] ],
+	]
+
+	svg.push(`<svg xmlns="http://www.w3.org/2000/svg" width="${iw}" height="${ih}">`)
+
+	svg.push(`<path fill="${c[0]}" d="M${v}"/>`)
+	svg.push(`<path fill="${c[3]}" d="M${f1}"/>`)
+	svg.push(`<path fill="${c[1]}" d="M${f2}"/>`)
+
+	svg.push(`<path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke="${c[4]}" d="M${v}z M${v2} M${v3}"/>`)
+
+	svg.push(`</svg>`)
+	fs.writeFileSync(output, svg.join("\n") + "\n")
+}
+
+print_cube("pieces/iso_red_cube.svg", make_piece_colors("#e06136"))
+print_cube("pieces/iso_yellow_cube.svg", make_piece_colors("#fec36d"))
+print_cube("pieces/iso_purple_cube.svg", make_piece_colors("#6d5798"))
-- 
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