ADD file via upload

src/Food.java

@@ -0,0 +1,53 @@
+package com.snakegame;
+
+import java.awt.*;
+import java.util.Random;
+
+public class Food {
+    private Point position;
+    private final GameConfig config;
+    private final Random random = new Random();
+    private boolean isBigFood;
+    private long lastBlinkTime;
+    private boolean isVisible = true;
+
+    public Food(GameConfig config) {
+        this.config = config;
+        this.respawn();
+        this.lastBlinkTime = System.currentTimeMillis();
+    }
+
+    public void respawn() {
+        do {
+            this.position = new Point(this.random.nextInt(this.config.getWidth()), this.random.nextInt(this.config.getHeight()));
+        } while(this.position.x < 1 || this.position.y < 1);
+
+        this.isBigFood = this.random.nextInt(10) == 0;
+    }
+
+    public void draw(Graphics g, int tileSize) {
+        long currentTime = System.currentTimeMillis();
+        if (currentTime - this.lastBlinkTime > 1000L) { // 每秒闪烁一次
+            this.isVisible = !this.isVisible;
+            this.lastBlinkTime = currentTime;
+        }
+
+        if (this.isVisible) {
+            if (this.isBigFood) {
+                g.setColor(Color.YELLOW);
+                g.fillOval(this.position.x * tileSize, this.position.y * tileSize, tileSize, tileSize);
+            } else {
+                g.setColor(this.config.getFoodColor());
+                g.fillOval(this.position.x * tileSize, this.position.y * tileSize, tileSize - 2, tileSize - 2);
+            }
+        }
+    }
+
+    public Point getPosition() {
+        return this.position;
+    }
+
+    public boolean isBigFood() {
+        return this.isBigFood;
+    }
+}