diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..7abac96
Binary files /dev/null and b/.DS_Store differ
diff --git a/README.md b/README.md
index 32e4825..58de294 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,70 @@
-# watermelon
-Flutter版合成大西瓜
+
+
+
+
+合成大瓜
+
+
+
+
+
+# 简介
+
+合成大瓜是使用[Flutter](https://flutter.dev/)+[Flame](https://flame-engine.org/)+[Forge2D](https://github.com/flame-engine/forge2d)开发的一个开源小游戏。
+
+我在[微伞小游戏](http://www.wesane.com/)开发的[《合成大西瓜》](http://www.wesane.com/game/654/)的基础上将其移植到 Flutter 平台，并添加了以下新特性：
+
+- 支持自定义背景图
+- 支持重力感应操控
+- 支持修改图片素材
+- 支持反向合成小瓜
+- 支持只生成小/大瓜
+- 内置多套游戏主题（水果/表情/校徽）
+
+# 预览
+
+|  |  |  |  |
+| :------------: | :------------: | :------------: | :------------: |
+
+
+# 下载地址
+
+网页版：http://v.idoo.top/mix
+
+安卓/iOS：https://www.pgyer.com/Dagua
+
+***PS：iOS版安装包需要自签才能使用***
+
+
+# 开源地址
+
+本项目开源地址 https://github.com/idootop/fallDown , 欢迎Star/PR ^^
+
+Web端生成
+```shell
+flutter build web --release
+```
+
+Android端生成
+```shell
+flutter build apk --split-per-abi
+```
+
+PS：亦可支持iOS，Mac，Windows，Linux端，请自行打包
+
+# 免责声明
+
+合成大瓜为免费开源软件，仅供学习交流，你可以非商业性地下载、安装、复制和散发本软件产品。
+
+本游戏的创意玩法来自[《合成大西瓜》](http://www.wesane.com/game/654/)，应用内的素材收集自互联网，部分图片、音频素材版权归[微伞小游戏](http://www.wesane.com/)所有，侵删。
+
+# 鸣谢
+
+Flutter https://flutter.dev/
+
+Flame https://flame-engine.org/
+
+Forge2D https://github.com/flame-engine/forge2d
+
+合成大西瓜 http://www.wesane.com/game/654/
+
diff --git a/analysis_options.yaml b/analysis_options.yaml
new file mode 100644
index 0000000..108d105
--- /dev/null
+++ b/analysis_options.yaml
@@ -0,0 +1 @@
+include: package:pedantic/analysis_options.yaml
diff --git a/android/.gitignore b/android/.gitignore
new file mode 100644
index 0000000..0a741cb
--- /dev/null
+++ b/android/.gitignore
@@ -0,0 +1,11 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
diff --git a/android/app/build.gradle b/android/app/build.gradle
new file mode 100644
index 0000000..9f55989
--- /dev/null
+++ b/android/app/build.gradle
@@ -0,0 +1,62 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+ localPropertiesFile.withReader('UTF-8') { reader ->
+ localProperties.load(reader)
+ }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+ throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+ flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+ flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+ compileSdkVersion 30
+
+ sourceSets {
+ main.java.srcDirs += 'src/main/kotlin'
+ }
+
+ lintOptions {
+ disable 'InvalidPackage'
+ }
+
+ defaultConfig {
+ applicationId "cat.love.mix" //bundle id
+ minSdkVersion 16
+ targetSdkVersion 30
+ versionCode flutterVersionCode.toInteger()
+ versionName flutterVersionName
+ }
+
+ buildTypes {
+ release {
+ // TODO: Add your own signing config for the release build.
+ // Signing with the debug keys for now, so `flutter run --release` works.
+ signingConfig signingConfigs.debug
+ }
+ }
+}
+
+flutter {
+ source '../..'
+}
+
+dependencies {
+ implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
diff --git a/android/app/proguard-rules.pro b/android/app/proguard-rules.pro
new file mode 100644
index 0000000..bccd023
--- /dev/null
+++ b/android/app/proguard-rules.pro
@@ -0,0 +1,7 @@
+#Flutter Wrapper
+-keep class io.flutter.app.** { *; }
+-keep class io.flutter.plugin.** { *; }
+-keep class io.flutter.util.** { *; }
+-keep class io.flutter.view.** { *; }
+-keep class io.flutter.** { *; }
+-keep class io.flutter.plugins.** { *; }
diff --git a/android/app/src/debug/AndroidManifest.xml b/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..61e728a
--- /dev/null
+++ b/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,6 @@
+
+
+
+
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..635adf5
--- /dev/null
+++ b/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,33 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/android/app/src/main/kotlin/com/example/watermelon/MainActivity.kt b/android/app/src/main/kotlin/com/example/watermelon/MainActivity.kt
new file mode 100644
index 0000000..ed51515
--- /dev/null
+++ b/android/app/src/main/kotlin/com/example/watermelon/MainActivity.kt
@@ -0,0 +1,6 @@
+package cat.love.mix
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+}
diff --git a/android/app/src/main/res/drawable-v21/launch_background.xml b/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..f74085f
--- /dev/null
+++ b/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,12 @@
+
+
+
+