diff --git a/audio.go b/audio.go
index 49a84ed..6079394 100644
--- a/audio.go
+++ b/audio.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/camera.go b/camera.go
index 6966a40..54f2465 100644
--- a/camera.go
+++ b/camera.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/event.go b/event.go
index 6f83041..8495301 100644
--- a/event.go
+++ b/event.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/fs/asset/asset_mobile.go b/fs/asset/asset_mobile.go
index 17b84ea..517d001 100644
--- a/fs/asset/asset_mobile.go
+++ b/fs/asset/asset_mobile.go
@@ -1,6 +1,22 @@
 //go:build android || ios
 // +build android ios
 
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package asset
 
 import (
diff --git a/fs/asset/asset_others.go b/fs/asset/asset_others.go
index f263c6f..385fbca 100644
--- a/fs/asset/asset_others.go
+++ b/fs/asset/asset_others.go
@@ -1,6 +1,22 @@
 //go:build !android && !ios
 // +build !android,!ios
 
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package asset
 
 import (
diff --git a/fs/asset/localfs.go b/fs/asset/localfs.go
index 8a5301f..967628a 100644
--- a/fs/asset/localfs.go
+++ b/fs/asset/localfs.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package asset
 
 import (
diff --git a/fs/fs.go b/fs/fs.go
index c33637e..5064457 100644
--- a/fs/fs.go
+++ b/fs/fs.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package fs
 
 import (
diff --git a/fs/fsutil/file_js.go b/fs/fsutil/file_js.go
index 71373a7..942b83b 100644
--- a/fs/fsutil/file_js.go
+++ b/fs/fsutil/file_js.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package fsutil
 
 import (
diff --git a/fs/fsutil/file_nojs.go b/fs/fsutil/file_nojs.go
index 049565e..24c7e95 100644
--- a/fs/fsutil/file_nojs.go
+++ b/fs/fsutil/file_nojs.go
@@ -1,6 +1,22 @@
 //go:build !js
 // +build !js
 
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package fsutil
 
 import (
diff --git a/fs/zip/zipfs.go b/fs/zip/zipfs.go
index d2f4215..2786d6d 100644
--- a/fs/zip/zipfs.go
+++ b/fs/zip/zipfs.go
@@ -1,6 +1,22 @@
 //go:build !js
 // +build !js
 
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package zip
 
 import (
diff --git a/fs/zip/zipfs_js.go b/fs/zip/zipfs_js.go
index af6441b..195c34a 100644
--- a/fs/zip/zipfs_js.go
+++ b/fs/zip/zipfs_js.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package zip
 
 import (
diff --git a/game.go b/game.go
index 86d1573..4269141 100644
--- a/game.go
+++ b/game.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/input.go b/input.go
index 1673d81..545d038 100644
--- a/input.go
+++ b/input.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/internal/anim/anim.go b/internal/anim/anim.go
index b922055..5fca738 100644
--- a/internal/anim/anim.go
+++ b/internal/anim/anim.go
@@ -134,7 +134,7 @@ type Animation struct {
 
 var globalAnimId int64 = 1
 
-//loopmodel = -1
+// loopmodel = -1
 func NewAnimation(name string, framePerSecond float64, dataType int, loopMode int) *Animation {
 	this := &Animation{}
 	this.Init(name, framePerSecond, dataType, loopMode)
diff --git a/list.go b/list.go
index f0f4c63..332da85 100644
--- a/list.go
+++ b/list.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/measure.go b/measure.go
index ec6a7d6..74096fe 100644
--- a/measure.go
+++ b/measure.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/monitor.go b/monitor.go
index 4f38446..970c56f 100644
--- a/monitor.go
+++ b/monitor.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
@@ -30,18 +46,18 @@ type stageMonitor struct {
 }
 
 /*
-	"type": "stageMonitor",
-	"target": "",
-	"val": "getVar:score",
-	"color": 15629590,
-	"label": "score",
-	"mode": 1,
-	"sliderMin": 0,
-	"sliderMax": 100,
-	"x": 5,
-	"y": 5,
-	"isDiscrete": true,
-	"visible": true
+"type": "stageMonitor",
+"target": "",
+"val": "getVar:score",
+"color": 15629590,
+"label": "score",
+"mode": 1,
+"sliderMin": 0,
+"sliderMax": 100,
+"x": 5,
+"y": 5,
+"isDiscrete": true,
+"visible": true
 */
 func newStageMonitor(g reflect.Value, v specsp) (*stageMonitor, error) {
 	target := v["target"].(string)
diff --git a/pen.go b/pen.go
index ce4fdb8..fd2670d 100644
--- a/pen.go
+++ b/pen.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/quote.go b/quote.go
index cceaf83..caaa10a 100644
--- a/quote.go
+++ b/quote.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/say.go b/say.go
index 31ce532..1054adf 100644
--- a/say.go
+++ b/say.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/spbase.go b/spbase.go
index 35528da..8dd4a6a 100644
--- a/spbase.go
+++ b/spbase.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/spgdi.go b/spgdi.go
index f9e290a..b84147e 100644
--- a/spgdi.go
+++ b/spgdi.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/sprite.go b/sprite.go
index 0350868..a79eb8e 100644
--- a/sprite.go
+++ b/sprite.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/tick.go b/tick.go
index 6aa3a8a..21a5497 100644
--- a/tick.go
+++ b/tick.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (
diff --git a/utils.go b/utils.go
index d451d1d..96fb3fb 100644
--- a/utils.go
+++ b/utils.go
@@ -1,3 +1,19 @@
+/*
+ * Copyright (c) 2021 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package spx
 
 import (