AP_Scripting: Parameter helper: add configured and set defualt

libraries/AP_Scripting/AP_Scripting_helpers.cpp

@@ -38,7 +38,7 @@ bool Parameter::set(float value)
     return false;
 }
 
-//  get a value by name
+// get value
 bool Parameter::get(float &value)
 {
     if (vp == nullptr) {
@@ -67,7 +67,7 @@ bool Parameter::get(float &value)
     return true;
 }
 
-// set and save a value by name
+// set and save value
 bool Parameter::set_and_save(float value)
 {
     if (vp == nullptr) {
@@ -93,3 +93,37 @@ bool Parameter::set_and_save(float value)
     return false;
 }
 
+// Check if param had been configured
+bool Parameter::configured()
+{
+    if (vp == nullptr) {
+        return false;
+    }
+    return vp->configured();
+}
+
+// set default value
+bool Parameter::set_default(float value)
+{
+    if (vp == nullptr) {
+        return false;
+    }
+    switch (vtype) {
+    case AP_PARAM_INT8:
+        ((AP_Int8 *)vp)->set_default(value);
+        return true;
+    case AP_PARAM_INT16:
+        ((AP_Int16 *)vp)->set_default(value);
+        return true;
+    case AP_PARAM_INT32:
+        ((AP_Int32 *)vp)->set_default(value);
+        return true;
+    case AP_PARAM_FLOAT:
+        ((AP_Float *)vp)->set_default(value);
+        return true;
+    default:
+        break;
+    }
+    // not a supported type
+    return false;
+}