done

src/Entity/Character.java

@@ -1,12 +1,155 @@
 package Entity;
 
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.math.Interpolation;
+import com.badlogic.gdx.math.Vector2;
+
+import ch.hevs.gdx2d.components.bitmaps.Spritesheet;
+import ch.hevs.gdx2d.lib.GdxGraphics;
+
 public abstract class Character extends Entity{
-    public Character(String name) {
-        super(name);
-        //TODO Auto-generated constructor stub
+
+    public enum Direction{
+        UP,
+        DOWN,
+        RIGHT,
+        LEFT,
+        NULL
     }
 
-    private int pv;
+    /**
+     * The currently selected sprite for animation
+     */
+    int textureX = 0;
+    int textureY = 1;
+    float speed = 1;
+
+    float dt = 0;
+    int currentFrame = 0;
+    int nFrames = 4;
+    final float FRAME_TIME = 0.1f; // Duration of each frime
+    private String img;
+
+    protected int pv;
+
+    public Character(String name, int x, int y, String img){
+        super(name, x, y);
+        this.img = img;
+        
+    }
+
+    @Override
+    public void init() {
+        super.init();
+        ss = new Spritesheet("./resources/" + img + ".png", SPRITE_WIDTH, SPRITE_HEIGHT);
+    }
+
+    @Override
+    public void graphicRender(GdxGraphics g) {
+        super.graphicRender(g);
+        animate(Gdx.graphics.getDeltaTime());
+		draw(g);
+    }
+
+    /**
+     * Update the position and the texture of the hero.
+     * @param elapsedTime The time [s] elapsed since the last time which this method was called.
+     */
+    public void animate(double elapsedTime) {
+        float frameTime = FRAME_TIME / speed;
+
+        position = new Vector2(lastPosition);
+        if(isMoving()) {
+            dt += elapsedTime;
+            float alpha = (dt+frameTime*currentFrame)/(frameTime*nFrames);
+
+            position.interpolate(newPosition, alpha,Interpolation.linear);
+        }else{
+            dt = 0;
+        }
+
+        if (dt > frameTime) {
+            dt -= frameTime;
+            currentFrame = (currentFrame + 1) % nFrames;
+
+            if(currentFrame == 0){
+                move = false;
+                lastPosition = new Vector2(newPosition);
+                position = new Vector2(newPosition);
+            }
+        }
+    }
+
+    /**
+     * @return True if the entity is actually doing a step.
+     */
+    public boolean isMoving(){
+        return move;
+    }
+
+    /**
+     * @param speed The new speed of the hero.
+     */
+    public void setSpeed(float speed){
+        this.speed = speed;
+    }
+
+    /**
+     * Do a step on the given direction
+     * @param direction The direction to go.
+     */
+    public void go(Direction direction){
+        move = true;
+        switch(direction){
+            case RIGHT:
+                newPosition.add(SPRITE_WIDTH, 0);
+                break;
+            case LEFT:
+                newPosition.add(-SPRITE_WIDTH, 0);
+                break;
+            case UP:
+                newPosition.add(0, SPRITE_HEIGHT);
+                break;
+            case DOWN:
+                newPosition.add(0, -SPRITE_HEIGHT);
+                break;
+            default:
+                break;
+        }
+
+        turn(direction);
+    }
+
+    /**
+     * Turn the hero on the given direction without do any step.
+     * @param direction The direction to turn.
+     */
+    public void turn(Direction direction){
+        switch(direction){
+            case RIGHT:
+                textureY = 2;
+                break;
+            case LEFT:
+                textureY = 1;
+                break;
+            case UP:
+                textureY = 3;
+                break;
+            case DOWN:
+                textureY = 0;
+                break;
+            default:
+                break;
+        }
+    }
+
+    /**
+     * Draw the character on the graphic object.
+     * @param g Graphic object.
+     */
+    public void draw(GdxGraphics g) {
+        g.draw(ss.sprites[textureY][currentFrame], position.x, position.y);
+    }
 
     public int getPv() {
         return pv;