1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
package ch.asynk.tankontank.game;
import java.util.ArrayDeque;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.scenes.scene2d.ui.Image;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.math.GridPoint2;
public class HexMapImage extends Image implements HexMap
{
private HexMap.Config cfg;
private int cols;
private int rows;
private ArrayDeque<Pawn>[][] cells;
@SuppressWarnings("unchecked")
public HexMapImage(HexMap.Config cfg, Texture texture)
{
super(texture);
cells = new ArrayDeque[cfg.rows][];
for (int i = 0; i < cfg.rows; i++) {
if ((i % 2) == 1) cells[i] = new ArrayDeque[cfg.cols - 1];
else cells[i] = new ArrayDeque[cfg.cols];
}
this.cfg = cfg;
this.cols = cfg.cols - 1;
this.rows = cfg.rows - 1;
}
public Pawn getTopPawnAt(GridPoint2 cell)
{
return getTopPawnAt(cell.x, cell.y);
}
private Pawn getTopPawnAt(int col, int row)
{
if ((col < 0) || (row < 0)) return null;
ArrayDeque<Pawn> st = cells[row][col];
if ((st == null) || (st.size() == 0)) return null;
return st.getFirst();
}
public Vector2 getHexCenterAt(GridPoint2 cell)
{
float x = cfg.x0 + ((cell.x * cfg.w) + (cfg.w / 2));
float y = cfg.y0 + ((cell.y * cfg.H) + (cfg.h / 2));
if ((cell.y % 2) == 1) x += cfg.dw;
return new Vector2(x, y);
}
public Vector2 getPawnPosAt(Pawn pawn, GridPoint2 cell)
{
return getPawnPosAt(pawn, cell.x, cell.y);
}
private Vector2 getPawnPosAt(Pawn pawn, int col, int row)
{
float x = cfg.x0 + ((col * cfg.w) + ((cfg.w - pawn.getHeight()) / 2));
float y = cfg.y0 + ((row * cfg.H) + ((cfg.h - pawn.getWidth()) / 2));
if ((row % 2) == 1) x += cfg.dw;
return new Vector2(x, y);
}
private int pushPawnAt(Pawn pawn, int col, int row)
{
ArrayDeque<Pawn> st = cells[row][col];
if (st == null) st = cells[row][col] = new ArrayDeque<Pawn>();
st.push(pawn);
return st.size();
}
private void removePawnFrom(Pawn pawn, int col, int row)
{
if ((col> 0) && (row > 0)) {
ArrayDeque<Pawn> st = cells[row][col];
if ((st == null) || (st.size() == 0))
Gdx.app.error("GameScreen", "remove pawn from " + col + ";" + row + " but pawn stack is empty");
else
st.remove(pawn);
}
}
public void movePawnTo(Pawn pawn, Vector3 coords)
{
GridPoint2 p = getHexAt(null, coords.x, coords.y);
movePawnTo(pawn, p.x, p.y, Hex.Orientation.KEEP);
}
public void setPawnAt(final Pawn pawn, final int col, final int row, Hex.Orientation o)
{
int z = pushPawnAt(pawn, col, row);
Vector2 pos = getPawnPosAt(pawn, col, row);
pawn.pushMove(pos.x, pos.y, z, o);
}
public void movePawnTo(final Pawn pawn, final int col, final int row, Hex.Orientation o)
{
GridPoint2 prev = getHexAt(pawn.getLastPosition());
if (prev != null) removePawnFrom(pawn, prev.x, prev.y);
if ((col < 0) || (row < 0)) {
pawn.resetMoves(new Runnable() {
@Override
public void run() {
GridPoint2 hex = getHexAt(pawn.getLastPosition());
pawn.setZIndex(pushPawnAt(pawn, hex.x, hex.y));
}
});
return;
} else {
int z = pushPawnAt(pawn, col, row);
Vector2 pos = getPawnPosAt(pawn, col, row);
pawn.pushMove(pos.x, pos.y, z, o);
}
}
private GridPoint2 getHexAt(Vector3 v)
{
if (v == null) return null;
return getHexAt(null, v.x, v.y);
}
public GridPoint2 getHexAt(GridPoint2 hex, float cx, float cy)
{
if (hex == null) hex = new GridPoint2();
// compute row
int row;
boolean oddRow = true;
float y = (cy - cfg.y0);
if (y < 0.f) {
row = -1;
} else {
row = (int) (y / cfg.H);
oddRow = ((row % 2) == 1);
}
// compute col
int col;
float x = (cx - cfg.x0);
if (oddRow) x -= cfg.dw;
if (x < 0.f) {
col = -1;
} else {
col = (int) (x / cfg.w);
}
// check upper boundaries
float dy = (y - (row * cfg.H));
if (dy > cfg.h) {
dy -= cfg.h;
float dx = (x - (col * cfg.w));
if (dx < cfg.dw) {
if ((dx * cfg.slope) < dy) {
row += 1;
if (!oddRow) col -= 1;
oddRow = !oddRow;
}
} else {
if (((cfg.w - dx) * cfg.slope) < dy) {
row += 1;
if (oddRow) col += 1;
oddRow = !oddRow;
}
}
}
// validate hex
if ((col < 0) || (row < 0) || (row > rows) || (col > cols) || (oddRow && ((col +1)> cols)))
hex.set(-1, -1);
else
hex.set(col, row);
return hex;
}
}
|
