core/src/ru/deadsoftware/cavedroid/game/mobs/FallingSand.java

   1 package ru.deadsoftware.cavedroid.game.mobs;
   2
   3 import com.badlogic.gdx.Gdx;
   4 import com.badlogic.gdx.graphics.Texture;
   5 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
   6 import com.badlogic.gdx.math.Vector2;
   7 import ru.deadsoftware.cavedroid.game.GameItemsHolder;
   8 import ru.deadsoftware.cavedroid.game.world.GameWorld;
   9 import ru.deadsoftware.cavedroid.misc.Assets;
  10
  11 import javax.annotation.CheckForNull;
  12
  13
  14 /**
  15  * Falling sand is actually a mob, that spawns in place of gravel when there is no block under it,
  16  * falls down to the next block and becomes a block of sand again.
  17  */
  18 public class FallingSand extends Mob {
  19
  20     private static final String TAG = "FallingSand";
  21
  22     /**
  23      * Creates a FallingSand mob at coordinates
  24      *
  25      * @param x X in pixels
  26      * @param y Y in pixels
  27      */
  28     public FallingSand(float x, float y) {
  29         super(x, y, 16, 16, Direction.LEFT, Type.SAND, Integer.MAX_VALUE);
  30         mVelocity = new Vector2(0, 1);
  31     }
  32
  33     @Override
  34     public float getSpeed() {
  35         return 0;
  36     }
  37
  38     @Override
  39     public void jump() {
  40         // no-op
  41     }
  42
  43     @Override
  44     public void ai(GameWorld gameWorld, GameItemsHolder gameItemsHolder, float delta) {
  45         if (mVelocity.isZero()) {
  46             gameWorld.setForeMap(getMapX(), getUpperMapY(), gameItemsHolder.getBlock("sand"));
  47             kill();
  48         }
  49     }
  50
  51     @Override
  52     public void changeDir() {
  53     }
  54
  55     @Override
  56     public void draw(SpriteBatch spriteBatch, float x, float y, float delta) {
  57         @CheckForNull final Texture texture = Assets.blockTextures.get("sand");
  58
  59         if (texture == null) {
  60             Gdx.app.error(TAG, "Couldn't draw: texture not found");
  61             kill();
  62             return;
  63         }
  64
  65         spriteBatch.draw(texture, x, y);
  66     }
  67
  68 }