diff --git a/resources/JCasC.png b/resources/JCasC.png
index 50121a4..24bc14c 100644
--- a/resources/JCasC.png
+++ b/resources/JCasC.png
Binary files differ
diff --git a/src/main/java/GameEngine.java b/src/main/java/GameEngine.java
index 0ecdb1f..1a3f5ab 100644
--- a/src/main/java/GameEngine.java
+++ b/src/main/java/GameEngine.java
@@ -1,3 +1,7 @@
+import models.JumpGameModel;
+import org.lwjgl.glfw.GLFWKeyCallback;
+
+import static org.lwjgl.glfw.GLFW.*;
 import static org.lwjgl.opengl.GL11.*;
 
 //---------------------------------------------------------------
diff --git a/src/main/java/JumpGame.java b/src/main/java/JumpGame.java
index 0751e12..bfbf201 100644
--- a/src/main/java/JumpGame.java
+++ b/src/main/java/JumpGame.java
@@ -26,7 +26,8 @@
     //
     public void gravity(double y) {
         JumpGameModel jumpGameModel = (JumpGameModel) model;
-        jumpGameModel.updateGravity(y);
+        jumpGameModel.updateGravity(y); //重力の更新
+        jumpGameModel.updateGroundFlag();//地面の判定切り替え
     }
 
     //---------------------------------------------------------------
@@ -48,22 +49,19 @@
             view.display();
         }
 
-
         // Modelの更新
         // Space キーのインプット
         glfwSetKeyCallback(window, keyCallback = new GLFWKeyCallback() {
             @Override
             public void invoke(long window, int key, int scancode, int action, int mods) {
-                if(key == GLFW_KEY_SPACE && action != GLFW_PRESS){
-                    JumpGameModel jumpGameModel = (JumpGameModel)model;
+                if (key == GLFW_KEY_SPACE && action != GLFW_PRESS) {
+                    JumpGameModel jumpGameModel = (JumpGameModel) model;
                     jumpGameModel.jump();
-                    System.out.println("jumping");
+//                    System.out.println("jumping");
                 }
             }
         });
 
-
-        // マイフレーム更新
         gravity(-256); //重力
     }
 
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
index f51def6..b0f671e 100644
--- a/src/main/java/Main.java
+++ b/src/main/java/Main.java
@@ -1,3 +1,6 @@
+import javax.swing.*;
+import java.awt.*;
+
 //---------------------------------------------------------------
 // 実行本体
 public class Main extends GameEngine {
diff --git a/src/main/java/entities/modelExtentions/Flags.java b/src/main/java/entities/modelExtentions/Flags.java
index 7d68587..95f5d80 100644
--- a/src/main/java/entities/modelExtentions/Flags.java
+++ b/src/main/java/entities/modelExtentions/Flags.java
@@ -53,7 +53,8 @@
 
         if (count % 2 != 0) return false;
 
-        if (values.get(count) <= x) {
+        double cx = (double) values.get(count) - 0.5;
+        if (cx <= x) {
             if (count < values.size() - 1) count++;
             return true;
         }
@@ -64,7 +65,9 @@
     // 偶数番目のフラグで穴を閉じるフラグを提示する
     public boolean isCloseFlag(double x) {
         if (count % 2 == 0) return false;
-        if (values.get(count) <= x) {
+
+        double cx = (double) values.get(count) - 0.5;
+        if (cx <= x + 0.25) {
             if (count < values.size() - 1) count++;
             return true;
         }
diff --git a/src/main/java/models/JumpGameModel.java b/src/main/java/models/JumpGameModel.java
index c708473..6f35976 100644
--- a/src/main/java/models/JumpGameModel.java
+++ b/src/main/java/models/JumpGameModel.java
@@ -37,7 +37,6 @@
 
     //---------------------------------------------------------------
     private Flags flags;
-    private boolean tileType = true;
 
     //---------------------------------------------------------------
     //---------------------------------------------------------------
@@ -88,24 +87,29 @@
     public void updateGravity(double gravity) {
         this.time.gravity(gravity);
         this.force.gravity(gravity);
-        updateGroundFlag();
 //        System.out.println("swapWindow Gravity");
     }
 
     //---------------------------------------------------------------
     // 地面のフラグ更新
     public void updateGroundFlag() {
-        int x = position.getValue().getFirst().intValue();
+        double x = position.getValue().getFirst();
 
         if (flags.isOpenFlag(x)) ground.openHole();
         if (flags.isCloseFlag(x)) ground.closeHole();
 
         System.out.print("x: " + x + "/");
-        System.out.println("Ground: " + ground.getValue());
+        System.out.println("Ground: " + ground.getValue() + "/");
+//        System.out.print("Clear: " + clear.getClear() + "/");
+//        System.out.println("GameOver: " + gameover.getGameover());
+
     }
 
     //---------------------------------------------------------------
     //
+
+    //---------------------------------------------------------------
+    //
     private void init() {
 
     }
diff --git a/src/main/java/views/PlayerRenderer.java b/src/main/java/views/PlayerRenderer.java
index 1657a6e..f0a9772 100644
--- a/src/main/java/views/PlayerRenderer.java
+++ b/src/main/java/views/PlayerRenderer.java
@@ -27,7 +27,7 @@
         JumpGameModel jumpGameModel = (JumpGameModel) model;
 
         double x = this.sprite.getPositionValue().getFirst();
-        double y = 128 + jumpGameModel.getPosition().getValue().getSecond();
+        double y = 112 + jumpGameModel.getPosition().getValue().getSecond();
         this.sprite.setPositionValue(new Pair<>(x, y));
     }
 
diff --git a/src/main/java/views/TileRenderer.java b/src/main/java/views/TileRenderer.java
index 60ed17b..52b9a2d 100644
--- a/src/main/java/views/TileRenderer.java
+++ b/src/main/java/views/TileRenderer.java
@@ -10,7 +10,7 @@
 // タイルの描画
 public class TileRenderer implements IView {
     private Sprite sprite;
-    private Pair<Double> initPositionValue = new Pair<>(0d,0d);
+    private Pair<Double> initPositionValue;
 
     //---------------------------------------------------------------
     //---------------------------------------------------------------