Bind godot.instance_from_id

nmerget · Aug 7, 2020 · 2806a8f · 2806a8f
1 parent 755381c
commit 2806a8f
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Showing 3 changed files with 28 additions and 0 deletions.
diff --git a/misc/godot.d.ts b/misc/godot.d.ts
@@ -212,6 +212,10 @@ declare module godot {
 	 * ```*/
 	function load(path: string): Resource;
 
+	/**
+	 * Returns the Object that corresponds to `instance_id`. All Objects have a unique instance ID. 
+	 */
+	function instance_from_id(instance_id: number): Object;
 
 	/**
 	 * Wait a signal of an object

diff --git a/quickjs/quickjs_binder.cpp b/quickjs/quickjs_binder.cpp
@@ -453,6 +453,15 @@ JSValue QuickJSBinder::godot_load(JSContext *ctx, JSValue this_val, int argc, JS
 	return variant_to_var(ctx, res);
 }
 
+JSValue QuickJSBinder::godot_instance_from_id(JSContext *ctx, JSValue this_val, int argc, JSValue *argv) {
+#ifdef DEBUG_METHODS_ENABLED
+	ERR_FAIL_COND_V(argc < 1 || !JS_IsNumber(argv[0]), JS_ThrowTypeError(ctx, "number expected for %s.%s", GODOT_OBJECT_NAME, "instance_from_id"));
+#endif
+	ObjectID id = js_to_uint64(ctx, argv[0]);
+	Object *obj = ObjectDB::get_instance(id);
+	return variant_to_var(ctx, obj);
+}
+
 void QuickJSBinder::add_debug_binding_info(JSContext *ctx, JSValueConst p_obj, const ECMAScriptGCHandler *p_bind) {
 	if (!p_bind) return;
 	JSValue classname = JS_UNDEFINED;
@@ -1161,6 +1170,9 @@ void QuickJSBinder::add_godot_globals() {
 	// godot.load
 	JSValue js_func_load = JS_NewCFunction(ctx, godot_load, "load", 1);
 	JS_DefinePropertyValueStr(ctx, godot_object, "load", js_func_load, PROP_DEF_DEFAULT);
+	// godot.instance_from_id
+	JSValue js_godot_instance_from_id = JS_NewCFunction(ctx, godot_instance_from_id, "instance_from_id", 1);
+	JS_DefinePropertyValueStr(ctx, godot_object, "instance_from_id", js_godot_instance_from_id, PROP_DEF_DEFAULT);
 	{
 		// godot.DEBUG_ENABLED
 #ifdef DEBUG_ENABLED

diff --git a/quickjs/quickjs_binder.h b/quickjs/quickjs_binder.h
@@ -176,6 +176,8 @@ class QuickJSBinder : public ECMAScriptBinder {
 	static JSValue godot_to_string(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
 	static JSValue godot_get_type(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
 	static JSValue godot_load(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
+	static JSValue godot_instance_from_id(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
+
 	static void add_debug_binding_info(JSContext *ctx, JSValueConst p_obj, const ECMAScriptGCHandler *p_bind);
 
 	const ECMAClassInfo *register_ecma_class(const JSValueConst &p_constructor, const String &p_path);
@@ -251,6 +253,16 @@ class QuickJSBinder : public ECMAScriptBinder {
 		JS_ToUint32(ctx, &u, p_val);
 		return u;
 	}
+	_FORCE_INLINE_ static int64_t js_to_int64(JSContext *ctx, const JSValueConst &p_val) {
+		int64_t i;
+		JS_ToInt64(ctx, &i, p_val);
+		return i;
+	}
+	_FORCE_INLINE_ static uint64_t js_to_uint64(JSContext *ctx, const JSValueConst &p_val) {
+		uint64_t i;
+		JS_ToIndex(ctx, &i, p_val);
+		return i;
+	}
 	_FORCE_INLINE_ static JSValue to_js_number(JSContext *ctx, real_t p_val) {
 		return JS_NewFloat64(ctx, double(p_val));
 	}