feat(examples): add hook subscription to example mods

- JavaScript example now subscribes to greg.PLAYER.CoinChanged hook
- Python example simplified and updated to use hook system
- Go example restructured with proper hook callback implementation
- Rust example extended with on_hook API usage and cleanup functions
- All examples now demonstrate bidirectional communication with the core system

examples/Go/example_mod/main.go

@@ -1,3 +1,4 @@
+// example_mod/main.go
 package main
 
 /*
@@ -23,9 +24,10 @@ typedef struct {
 } GregModInfo;
 */
 import "C"
-import "unsafe"
-
-var api *C.GregCoreAPI
+import (
+    "fmt"
+    "unsafe"
+)
 
 //export greg_mod_info
 func greg_mod_info() C.GregModInfo {
@@ -39,19 +41,34 @@ func greg_mod_info() C.GregModInfo {
     }
 }
 
+//export onHookCallback
+func onHookCallback(hookName, trigger, jsonData *C.char) {
+    hookNameStr := C.GoString(hookName)
+    triggerStr := C.GoString(trigger)
+    jsonDataStr := C.GoString(jsonData)
+
+    fmt.Printf("Go Hook received: %s (Trigger: %s) - Data: %s\n", hookNameStr, triggerStr, jsonDataStr)
+}
+
 //export greg_mod_init
-func greg_mod_init(api_ptr *C.GregCoreAPI) bool {
-    api = api_ptr
-    msg := C.CString("Go Mod Initialized!")
-    defer C.free(unsafe.Pointer(msg))
-    C.bridge_log_info(api.log_info, msg)
+func greg_mod_init(api *GregCoreAPI) bool {
+    // Subscribe to a hook
+    hookName := C.CString("greg.PLAYER.CoinChanged")
+    defer C.free(unsafe.Pointer(hookName))
+    
+    api.OnHook(hookName, (unsafe.Pointer)(C.onHookCallback))
+    
     return true
 }
 
-// Helper to call C function pointers
-//go:uintptrescapes
-func callLog(fn unsafe.Pointer, msg *C.char) {
-    // This requires cgo bridge helpers usually
+//export greg_mod_update
+func greg_mod_update(dt float32) {
+    // Update logic
+}
+
+//export greg_mod_shutdown
+func greg_mod_shutdown() {
+    fmt.Println("Go Example Mod shutdown.")
 }
 
 func main() {}

examples/Js/example_mod/main.js

@@ -0,0 +1,17 @@
+// Plugins/Js/ExampleMod.js
+greg.logInfo("JS Example Mod initializing...");
+
+// Subscribe to the player's coin changed hook
+greg.on("greg.PLAYER.CoinChanged", (payload) => {
+    const amount = payload.Data.Amount;
+    const total = payload.Data.Total;
+    greg.logInfo(`JS received money update: ${amount} (Total: ${total})`);
+    
+    // Fire a custom hook back
+    greg.fire("greg.CUSTOM.JsResponse", {
+        msg: "JS heard that!",
+        received_total: total
+    });
+});
+
+greg.logInfo("JS Example Mod initialized!");

examples/Python/example_mod/main.py

@@ -1,17 +1,24 @@
+# example_mod/main.py
 def on_init():
     greg.log_info("Python Example Mod initialized!")
-    greg.show_notification("Python Mod Active")
+    
+    # Subscribe to coin changed hook
+    def on_coin_changed(payload):
+        amount = payload["data"]["Amount"]
+        total = payload["data"]["Total"]
+        greg.log_info(f"Python received money update: {amount} (Total: {total})")
+        
+        # Fire a custom hook back
+        greg.fire("greg.CUSTOM.PythonResponse", {
+            "msg": "Python heard that!",
+            "received_total": total
+        })
+
+    greg.on("greg.PLAYER.CoinChanged", on_coin_changed)
 
 def on_update(dt):
-    # dt is deltaTime
+    # Update logic
     pass
 
-def on_event(event_id, data):
-    if event_id == 100: # MoneyChanged
-        greg.log_info("Money changed! Current: " + str(greg.get_player_money()))
-
-def on_scene_loaded(name):
-    greg.log_info("Entered scene: " + name)
-
 def on_shutdown():
-    greg.log_info("Python Mod shutting down.")
+    greg.log_info("Python Example Mod shutdown.")

examples/Rust/greg_example/src/lib.rs

@@ -20,6 +20,7 @@ pub struct GregCoreAPI {
     pub log_warning: extern "C" fn(*const c_char),
     pub log_error:   extern "C" fn(*const c_char),
     pub get_player_money: extern "C" fn() -> f64,
+    pub on_hook:          extern "C" fn(*const c_char, *const c_void),
     // ... restliche Felder
 }
 
@@ -37,17 +38,32 @@ pub extern "C" fn greg_mod_info() -> GregModInfo {
     }
 }
 
+// Example of a Rust hook subscription
+extern "C" fn on_hook_callback(hook_name: *const i8, trigger: *const i8, json_data: *const i8) {
+    let hook_name = unsafe { CStr::from_ptr(hook_name).to_string_lossy() };
+    let trigger = unsafe { CStr::from_ptr(trigger).to_string_lossy() };
+    let json_data = unsafe { CStr::from_ptr(json_data).to_string_lossy() };
+
+    println!("Rust Hook received: {} (Trigger: {}) - Data: {}", hook_name, trigger, json_data);
+}
+
 #[no_mangle]
 pub extern "C" fn greg_mod_init(api: *const GregCoreAPI) -> bool {
-    unsafe {
-        API = Some(&*api);
-        let msg = CString::new("Rust Mod Initialisiert!").unwrap();
-        ((*api).log_info)(msg.as_ptr());
-    }
+    let api = unsafe { &*api };
+    
+    // Subscribe to a hook
+    let hook_name = CString::new("greg.PLAYER.CoinChanged").unwrap();
+    (api.on_hook)(hook_name.as_ptr(), on_hook_callback as *const ());
+    
     true
 }
 
 #[no_mangle]
 pub extern "C" fn greg_mod_update(dt: f32) {
-    // Logik pro Frame
+    // Update logic
+}
+
+#[no_mangle]
+pub extern "C" fn greg_mod_shutdown() {
+    println!("Rust Example Mod shutdown.");
 }