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package ch.asynk.gdx.boardgame.boards;
import com.badlogic.gdx.math.Vector2;
import ch.asynk.gdx.boardgame.Piece;
import ch.asynk.gdx.boardgame.Tile;
import ch.asynk.gdx.boardgame.tilestorages.TileStorage.TileProvider;
import ch.asynk.gdx.boardgame.utils.Collection;
public class TriangleBoard implements Board
{
private final int cols; // # colmuns
private final int rows; // # rows
private final float side; // length of the side of the equilateral triangle
private final float x0; // bottom left x offset
private final float y0; // bottom left y offset
private final BoardFactory.BoardOrientation orientation;
private final float d; // side / 2
private final float h; // height of the triangle
private final float m; // h / d
private final float h13; // 1/3 height of the triangle
private final float h23; // 2/3 height of the triangle
// [0] is 0° facing East
// [8] is default
private static final int [] vAngles = { 0, 60, -1, 120, 180, 240, -1, 300, 0};
private static final int [] hAngles = { -1, 30, 90, 150, -1, 210, 270, 330, 30};
private final Tile[] adjacents;
private final TileProvider tileProvider;
public TriangleBoard(int cols, int rows, float side, float x0, float y0, BoardFactory.BoardOrientation boardOrientation, TileProvider tileProvider)
{
this.cols = cols;
this.rows = rows;
this.side = side;
this.x0 = x0;
this.y0 = y0;
this.orientation = boardOrientation;
this.tileProvider = tileProvider;
this.d = side / 2f;
this.h = side * 0.866f;
this.m = this.h / this.d;
this.h13 = this.h * 0.33333f;
this.h23 = this.h * 0.66666f;
this.adjacents = new Tile[3];
for (int i = 0; i < 3; i++)
this.adjacents[i] = Tile.OffMap;
}
@Override public int size() { return cols * rows; }
@Override public Tile getTile(int x, int y)
{
return tileProvider.getTile(x, y, isOnBoard(x, y));
}
@Override public int[] getAngles()
{
if (this.orientation == BoardFactory.BoardOrientation.VERTICAL) {
return vAngles;
} else {
return hAngles;
}
}
@Override public Tile[] getAdjacents() { return adjacents; }
@Override public void buildAdjacents(int x, int y)
{
// FIXME
}
@Override public int genKey(int x, int y)
{
return (y * cols + x);
}
@Override public boolean isOnBoard(int x, int y)
{
if (x < 0 || x >= cols || y < 0 || y >= rows) return false;
return true;
}
@Override public void centerOf(int x, int y, Vector2 v)
{
float cx = this.x0;
float cy = this.y0;
if (this.orientation == BoardFactory.BoardOrientation.VERTICAL) {
cy += (y * this.d);
cx += ((x * this.h) + (((x + y) % 2 == 0) ? this.h23 : this.h13));
} else {
cx += (this.d + ((x -1) * this.d));
cy += ((y * this.h) + (((x + y) % 2 == 0) ? this.h23 : this.h13));
}
v.set(cx, cy);
}
@Override public void toBoard(float x, float y, Vector2 v)
{
boolean vert = (this.orientation == BoardFactory.BoardOrientation.VERTICAL);
float dx = x - this.x0;
float dy = y - this.y0;
float cx = (vert ? this.h : this.d);
float cy = (vert ? this.d : this.h);
int col = (int) (dx / cx);
int row = (int) (dy / cy);
if (dx < 0) col -=1;
if (dy < 0) row -=1;
dx -= (col * cx);
dy -= (row * cy);
if (vert) {
if (col % 2 == 0) {
if (row % 2 == 0) {
if (dy > (dx / this.m))
row += 1;
} else {
if (dy + (dx / this.m) > d )
row += 1;
}
} else {
if (row % 2 == 0) {
if (dy + (dx / this.m) > d )
row += 1;
} else {
if (dy > (dx / this.m))
row += 1;
}
}
} else {
if (row % 2 == 0) {
if (col % 2 == 0) {
if (dy > (dx * this.m))
col -= 1;
} else {
if (dy + (dx * this.m) < h )
col -= 1;
}
} else {
if (col % 2 == 0) {
if (dy + (dx * this.m) < h )
col -= 1;
} else {
if (dy > (dx * this.m))
col -= 1;
}
}
col += 1;
}
v.set(col, row);
}
@Override public float distance(int x0, int y0, int x1, int y1, Geometry geometry)
{
int dx = Math.abs(x1 - x0);
int dy = Math.abs(y1 - y0);
switch (geometry) {
case EUCLIDEAN:
return 0; // FIXME
case TAXICAB:
return dx + dy;
case TCHEBYCHEV:
return (dx > dy ? dx : dy);
}
return -1;
}
@Override public boolean lineOfSight(int x0, int y0, int x1, int y1, Collection<Tile> tiles, Vector2 v)
{
System.err.println("NOT implemented yet.");
return false;
}
@Override public int possibleMoves(Piece piece, Tile from, Collection<Tile> tiles)
{
System.err.println("NOT implemented yet.");
tiles.clear();
return tiles.size();
}
@Override public int shortestPath(Piece piece, Tile from, Tile to, Collection<Tile> tiles)
{
System.err.println("NOT implemented yet.");
tiles.clear();
return tiles.size();
}
}
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