tests/gdx-tests/src/com/badlogic/gdx/tests/Bresenham2Test.java

   1 package com.badlogic.gdx.tests;
   2
   3 import com.badlogic.gdx.Gdx;
   4 import com.badlogic.gdx.graphics.Color;
   5 import com.badlogic.gdx.graphics.GL20;
   6 import com.badlogic.gdx.graphics.Pixmap;
   7 import com.badlogic.gdx.graphics.Texture;
   8 import com.badlogic.gdx.graphics.Pixmap.Format;
   9 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
  10 import com.badlogic.gdx.math.Bresenham2;
  11 import com.badlogic.gdx.math.GridPoint2;
  12 import com.badlogic.gdx.math.Vector2;
  13 import com.badlogic.gdx.tests.utils.GdxTest;
  14
  15 public class Bresenham2Test extends GdxTest {
  16         SpriteBatch batch;
  17         Texture result;
  18
  19         @Override
  20         public void create () {
  21                 Pixmap pixmap = new Pixmap(512, 512, Format.RGBA8888);
  22                 pixmap.setColor(Color.WHITE);
  23
  24                 Bresenham2 bresenham = new Bresenham2();
  25                 for(GridPoint2 point: bresenham.line(0, 0, 512, 512)) pixmap.drawPixel(point.x, point.y);
  26                 for(GridPoint2 point: bresenham.line(512, 0, 0, 512)) pixmap.drawPixel(point.x, point.y);
  27                 for(GridPoint2 point: bresenham.line(0, 0, 512, 256)) pixmap.drawPixel(point.x, point.y);
  28                 for(GridPoint2 point: bresenham.line(512, 0, 0, 256)) pixmap.drawPixel(point.x, point.y);
  29
  30                 result = new Texture(pixmap);
  31                 batch = new SpriteBatch();
  32         }
  33
  34         @Override
  35         public void render () {
  36                 Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
  37                 batch.begin();
  38                 batch.draw(result, 0, 0);
  39                 batch.end();
  40         }
  41 }