some changes

DEV/DEV3.1/TP02/Part1/ImageManager.java

@@ -0,0 +1,49 @@
+import java.io.File;
+
+import javax.swing.ImageIcon;
+
+public class ImageManager {
+
+    private ImageIcon[] images; 
+    public int cursor;
+    
+    public ImageManager() {
+        File resourcesDirectory = new File("../resources/");
+
+        if(resourcesDirectory.exists() && resourcesDirectory.isDirectory()) {
+            File[] files = resourcesDirectory.listFiles();
+
+            if(files != null) {
+                this.images = new ImageIcon[files.length];
+                this.cursor = 0;
+
+                for(File file : files) {
+                    this.images[this.cursor] = new ImageIcon(file.getPath());
+                    this.cursor++;
+                }
+
+                this.cursor = 0;
+            }
+        }
+    }
+
+    public ImageIcon getNextImage() {
+        if(this.cursor >= this.images.length - 1) {
+            this.cursor = 0;
+        } else {
+            this.cursor++;
+        }
+
+        return this.images[this.cursor];
+    }
+
+    public ImageIcon getPreviousImage() {
+        if(this.cursor <= 0) {
+            this.cursor = this.images.length - 1;
+        } else {
+            this.cursor--;
+        }
+
+        return this.images[this.cursor];
+    }
+}