graphics - TextureRegion cuts texture in a wrong way -

i want have background texture 3 rectangles , want create animation them, - texture

but first rectangle cuts in proper way , 2 others cut in dumb way proper way, dumb way #1, dumb way #2

here code.

    public class mainmenu implements screen{      texture background_main;     textureregion[] background_textures;     animation background_animation;     spritebatch batch;     textureregion current_frame;      float statetime;     bobdestroyer game;     orthographiccamera camera;      public mainmenu(bobdestroyer game){        this.game = game; }      @override     public void show() {         camera = new orthographiccamera();         camera.settoortho(true, gdx.graphics.getwidth(), gdx.graphics.getheight());         batch = new spritebatch();         background_main = new texture(gdx.files.internal("main_menu_screen/background.png"));         background_textures = new textureregion[3];          for(int = 0; i<3; i++){             background_textures[i] = new textureregion(background_main,0, 0+72*i, 128, 72+72*i);         }         background_animation = new animation(2f,background_textures);     }      @override     public void render(float delta) {         gdx.gl.glclear(gl20.gl_color_buffer_bit | gl20.gl_depth_buffer_bit);         statetime += gdx.graphics.getdeltatime();          current_frame = background_animation.getkeyframe(statetime, true);         batch.begin();          batch.draw(current_frame,0, 0,gdx.graphics.getwidth(),gdx.graphics.getheight());             batch.end();     } } 

if understand correctly, trying create 3 textureregions of same width/height? if yes, issue may with:

new textureregion(background_main,0, 0+72*i, 128, 72+72*i) 

i think you'd want:

new textureregion(background_main,0, 0+72*i, 128, 72) 

as 128x72 width/height (not x/y positions) of next textureregions, , not want them same height (72) opposed varying heights (72+72*i)?