epic-64 · epic-64 · Oct 20, 2025 · Oct 19, 2025 · Oct 19, 2025 · Oct 19, 2025
diff --git a/build.gradle.kts b/build.gradle.kts
@@ -20,6 +20,8 @@ repositories {
 }
 
 dependencies {
+    implementation(project(":game-model"))
+
     implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.0")
     implementation("org.jetbrains.kotlinx:kotlinx-collections-immutable:0.4.0")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0")
@@ -35,6 +37,7 @@ dependencies {
     testImplementation(kotlin("test"))
     testImplementation("io.kotest:kotest-runner-junit5:$kotestVersion")
     testImplementation("io.kotest:kotest-assertions-core:$kotestVersion")
+    testImplementation(project(":game-model"))
 
     runtimeOnly("com.h2database:h2")
 }
@@ -61,7 +64,8 @@ tasks.register<JavaExec>("generateJsDoc") {
     classpath = sourceSets["main"].runtimeClasspath
     mainClass.set("tools.GenerateJsDocKt")
 
-    args("--file", "src/main/kotlin/game/Types.kt")
+    // Updated path after moving game-model into modules/
+    args("--file", "modules/game-model/src/commonMain/kotlin/game/CompactTypes.kt")
     args("--out", "frontend/generated/types.js")
 }
 
@@ -72,6 +76,10 @@ tasks.register<JavaExec>("runSpringServer2") {
     mainClass.set("server2.SpringAppKt")
 }
 
+springBoot {
+    mainClass.set("server2.SpringAppKt")
+}
+
 kotlin {
     jvmToolchain(21)
 }
diff --git a/frontend-kotlin/README.md b/frontend-kotlin/README.md
@@ -0,0 +1,55 @@
+# Kotlin Frontend (Experimental)
+
+This directory contains an experimental Kotlin/JS frontend that demonstrates rendering a list of `CompactCombatEvent` objects using shared Kotlin data types.
+
+## Build & Run
+
+Generate the production bundle and copy it here:
+
+```bash
+./gradlew :kjs:copyKotlinFrontend
+```
+
+Then open `frontend-kotlin/index.html` in a browser (or serve the directory via a simple HTTP server).
+
+## What It Does
+
+`Main.kt` constructs a small in-memory battle snapshot and a sequence of compact events, renders them as list items, and logs a JSON serialization of the events to the browser console.
+
+## Development / Watch (optional)
+
+For iterative development you can run the Webpack dev server:
+
+```bash
+./gradlew :kjs:jsBrowserDevelopmentRun
+```
+
+(Then point a browser to the URL it prints; this does not copy into `frontend-kotlin` automatically.)
+
+## Notes
+
+* The module `game-model` contains a minimal subset of game types ported for multiplatform use. In the future you can refactor the main server module to be multiplatform and remove duplication.
+* Styling is intentionally minimal.
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <title>Season Arena Kotlin Frontend</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1" />
+  <style>
+    body { font-family: system-ui, sans-serif; margin: 2rem; background:#111; color:#eee; }
+    h1 { font-size: 1.4rem; margin-top:0; }
+    ul { list-style: none; padding:0; }
+    li { background:#222; margin:.25rem 0; padding:.5rem .75rem; border-radius:4px; font-size:.9rem; }
+    .footer { margin-top:2rem; font-size:.75rem; opacity:.6; }
+  </style>
+</head>
+<body>
+  <h1>Season Arena Demo (Kotlin/JS)</h1>
+  <p>This page renders a sample list of CompactCombatEvent entries using shared Kotlin types.</p>
+  <div id="kotlin-root"></div>
+  <div class="footer">Generated by Kotlin/JS. Open the console to inspect serialized JSON output.</div>
+  <script type="module" src="kjs.js"></script>
+</body>
+</html>
+
diff --git a/frontend-kotlin/index.html b/frontend-kotlin/index.html
@@ -0,0 +1,26 @@
+<!-- ...existing code removed (file was empty)... -->
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <title>Season Arena Kotlin Frontend</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1" />
+  <style>
+    body { font-family: system-ui, sans-serif; margin: 2rem; background:#111; color:#eee; }
+    h1 { font-size: 1.4rem; margin-top:0; }
+    ul { list-style: none; padding:0; }
+    li { background:#222; margin:.25rem 0; padding:.5rem .75rem; border-radius:4px; font-size:.9rem; }
+    .footer { margin-top:2rem; font-size:.7rem; opacity:.6; }
+    .error { color:#f55; }
+  </style>
+</head>
+<body>
+  <h1>Season Arena Demo (Kotlin/JS)</h1>
+  <p>This page fetches <code>CompactCombatEvent</code> data from <code>/combat/example</code> and lists them. Open the console for raw JSON.</p>
+  <noscript><div class="error">JavaScript required.</div></noscript>
+  <div id="kotlin-root">Initializing Kotlin/JS...</div>
+  <div class="footer">If nothing loads, ensure the backend is running on <code>localhost:8080</code>.</div>
+  <script type="module" src="kjs.js"></script>
+</body>
+</html>
+
diff --git a/frontend-kotlin/kjs.js b/frontend-kotlin/kjs.js
diff --git a/frontend-kotlin/kjs.js.map b/frontend-kotlin/kjs.js.map
diff --git a/frontend/generated/kotlin/kjs.js b/frontend/generated/kotlin/kjs.js