paint: add script_append_mesh

paint/sources/minic_api.c

@@ -1198,6 +1198,7 @@ void minic_register_builtins() {
 	R(script_project_new, "v()");
 	R(script_project_open, "v(p:char path)");
 	R(script_import_asset, "v(p:char path,i hdr_as_envmap)");
+	R(script_append_mesh, "v(p:char path)");
 	R(script_export_mesh, "v(p:char path)");
 	R(script_export_material, "v(p:char path)");
 	R(project_filepath_get, "p:char()");

paint/sources/minic_impl.c

@@ -376,6 +376,18 @@ void script_import_asset(char *path, bool hdr_as_envmap) {
 	g_context->ddirty = 2;
 }
 
+void script_append_mesh(char *path) {
+	if (path == NULL || !iron_file_exists(path)) {
+		return;
+	}
+	gpu_texture_t *current;
+	bool           in_use;
+	script_gpu_begin(&current, &in_use);
+	import_mesh_run(path, false, false, true);
+	script_gpu_end(current, in_use);
+	g_context->ddirty = 2;
+}
+
 void script_export_mesh(char *path) {
 	if (path == NULL) {
 		return;