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package bwapi;

import org.junit.Test;

import java.util.Random;

import java.util.TreeSet;

import static org.junit.Assert.*;

public class PointTest {

@Test

public void pointEqualsTest() {

assertEquals(new TilePosition(1, 1), new TilePosition(1, 1));

assertNotEquals(new TilePosition(1, 1), new TilePosition(1, 2));

assertNotEquals(new TilePosition(1, 1), new TilePosition(2, 1));

assertNotEquals(new TilePosition(1, 1), new TilePosition(2, 2));

assertNotEquals(new TilePosition(1, 1), new Position(1, 1));

assertNotEquals(new TilePosition(1, 1), null);

}

@Test

public void pointDistanceAccessibleTest() {

TilePosition tp = TilePosition.Origin;

assertEquals(0, tp.getApproxDistance(tp));

assertEquals(0, tp.getDistance(tp), 0.001);

assertEquals(0 , tp.getLength(), 0.001);

}

@Test

public void alternativeConstructorTest() {

TilePosition tp = new TilePosition(23, 7);

assertEquals(tp, new TilePosition(new Position(tp)));

assertEquals(tp, new TilePosition(new WalkPosition(tp)));

assertEquals(tp, new TilePosition(tp));

Position p = new Position(97, 43);

assertEquals(p.toTilePosition(), new TilePosition(p)); // P -> TP loses precision

assertEquals(p.toWalkPosition(), new WalkPosition(p));

assertEquals(p, new Position(p));

WalkPosition wp = new WalkPosition(41, 22);

assertEquals(wp, new WalkPosition(new Position(wp)));

assertEquals(wp.toTilePosition(), new TilePosition(wp));

assertEquals(wp, new WalkPosition(wp));

}

@Test

public void isValidChecks() {

Game game = new Game();

game.botClientData().setBuffer(GameBuilder.binToBufferUnchecked(GameBuilder.DEFAULT_BUFFER_PATH));

game.botClientData().gameData().setMapWidth(256);

game.botClientData().gameData().setMapHeight(256);

game.init();

assertEquals(256, game.mapHeight());

assertEquals(256, game.mapWidth());

assertEquals(32 * 256, game.mapPixelHeight());

assertEquals(32 * 256, game.mapPixelWidth());

assertTrue(new Position(0,0).isValid(game));

assertTrue(new Position(1, 1).isValid(game));

assertFalse(new Position(-1, -1).isValid(game));

assertFalse(new Position(1, -1).isValid(game));

assertTrue(new TilePosition(0, 0).isValid(game));

assertFalse(new TilePosition(256, 256).isValid(game));

}

@Test

public void randomPointTests() {

Random r = new Random();

int bound = 100_000;

for (int i=0; i < 100; i++) {

TilePosition tp1 = new TilePosition(r.nextInt(bound), r.nextInt(bound));

TilePosition tp2 = new TilePosition(tp1);

assertEquals(tp1, tp2);

Position p1 = new Position(tp1);

Position p2 = tp1.toPosition();

assertEquals(p1, p2);

assertEquals(tp1.x * 32, p1.x);

assertEquals(tp1.y * 32 , p2.y);

WalkPosition wp1 = new WalkPosition(tp1);

WalkPosition wp2 = tp1.toWalkPosition();

assertEquals(wp1, wp2);

assertEquals(tp1.x * 4, wp1.x);

assertEquals(tp1.y * 4 , wp2.y);

}

for (int i=0; i < 100; i++) {

WalkPosition wp1 = new WalkPosition(r.nextInt(bound), r.nextInt(bound));

WalkPosition wp2 = new WalkPosition(wp1);

assertEquals(wp1, wp2);

Position p1 = new Position(wp1);

Position p2 = wp1.toPosition();

assertEquals(p1, p2);

assertEquals(wp1.x * 8, p1.x);

assertEquals(wp1.y * 8 , p2.y);

TilePosition tp1 = new TilePosition(wp1);

TilePosition tp2 = wp1.toTilePosition();

assertEquals(tp1, tp2);

assertEquals(wp1.x / 4, tp1.x);

assertEquals(wp1.y / 4 , tp2.y);

}

for (int i=0; i < 100; i++) {

Position p1 = new Position(r.nextInt(bound), r.nextInt(bound));

Position p2 = new Position(p1);

assertEquals(p1, p2);

WalkPosition wp1 = new WalkPosition(p1);

WalkPosition wp2 = p1.toWalkPosition();

assertEquals(wp1, wp2);

assertEquals(p1.x / 8, wp1.x);

assertEquals(p1.y / 8 , wp2.y);

TilePosition tp1 = new TilePosition(p1);

TilePosition tp2 = p1.toTilePosition();

assertEquals(tp1, tp2);

assertEquals(p1.x / 32, tp1.x);

assertEquals(p1.y / 32 , tp2.y);

}

}

@Test

public void testComparablePoint() {

TreeSet<Point<?>> points = new TreeSet<>();

points.add(new Position(0, 1));

points.add(new Position(0,0));

points.add(new TilePosition(0, 0));

points.add(new Position(1, 0));

points.add(new WalkPosition(0, 0));

assertArrayEquals(new Point<?>[]{

new Position(0, 0),

new Position(0, 1),

new Position(1, 0),

new WalkPosition(0, 0),

new TilePosition(0, 0)

}, points.toArray());

}

}