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Build range follows the screen; out-of-range replace ghosts replace (t64)

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
44r0n7
2026-10-27 16:41:32 -04:00
co-authored by Claude Opus 5.5
parent 6bc4fd5928
commit ef4ba6d24a
11 changed files with 77 additions and 16 deletions
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src/sim/tools.js
+13
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@@ -1,5 +1,18 @@
// Tool helpers: reach, brushes, and plain digging.
// ---------- Tools ----------
// Building reaches about as far as the screen shows (t64): the view box the UI sets each frame
// (setBuildRange), at least REACH from its centre and at most BUILD_MAX; anything beyond becomes
// a blueprint ghost. With no view (tests, headless), a REACH box around the bot.
const BUILD_MAX = 200;
let buildBox = null;
function setBuildRange(cx, cy, w, h) {
const hw = Math.max(REACH, Math.min(BUILD_MAX, w / 2)), hh = Math.max(REACH, Math.min(BUILD_MAX, h / 2));
if (!buildBox) buildBox = { cx, cy, hw, hh }; else { buildBox.cx = cx; buildBox.cy = cy; buildBox.hw = hw; buildBox.hh = hh; }
}
function inBuildRange(x, y) {
if (!buildBox) { const dx = x - (bot.x + bot.w / 2), dy = y - (bot.y + bot.h / 2); return Math.abs(dx) <= REACH && Math.abs(dy) <= REACH; }
return Math.abs(x - buildBox.cx) <= buildBox.hw && Math.abs(y - buildBox.cy) <= buildBox.hh;
}
function inReach(x, y) { const dx = x - (bot.x + bot.w / 2), dy = y - (bot.y + bot.h / 2); return dx * dx + dy * dy <= REACH * REACH; }
function forBrush(cx, cy, r, fn) {
const r2 = (r + 0.5) * (r + 0.5);