wip v2

src/log.ts

@@ -0,0 +1,28 @@
+let logLines: string[] = [];
+let logLength = 30;
+let logVisible = false;
+
+export function setLogVisibility(visible:boolean) {
+    logVisible = visible;
+}
+
+export function renderLog() {
+  if (!logVisible) {
+    return;
+  }
+
+  let log = document.getElementById("log");
+  if (!log) {
+    throw new Error();
+  }
+  log.innerText = logLines.join("\n");
+}
+export function log(message: string) {
+  console.log(message);
+  logLines.push(`${new Date().toLocaleTimeString()}: ${message}`);
+  if (logLines.length > logLength) {
+    logLines = logLines.slice(logLines.length - logLength);
+  }
+
+  renderLog();
+}