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
182
183
184
185
186
187
188
189
190
191
192
193
|
#include "toltecs/microtiles.h"
namespace Toltecs {
MicroTileArray::MicroTileArray(int16 width, int16 height) {
_tilesW = (width / TileSize) + ((width % TileSize) > 0 ? 1 : 0);
_tilesH = (height / TileSize) + ((height % TileSize) > 0 ? 1 : 0);
_tiles = new BoundingBox[_tilesW * _tilesH];
clear();
}
MicroTileArray::~MicroTileArray() {
delete[] _tiles;
}
void MicroTileArray::addRect(Common::Rect r) {
int ux0, uy0, ux1, uy1;
int tx0, ty0, tx1, ty1;
int ix0, iy0, ix1, iy1;
r.clip(Common::Rect(0, 0, 639, 399));
ux0 = r.left / TileSize;
uy0 = r.top / TileSize;
ux1 = r.right / TileSize;
uy1 = r.bottom / TileSize;
tx0 = r.left % TileSize;
ty0 = r.top % TileSize;
tx1 = r.right % TileSize;
ty1 = r.bottom % TileSize;
for (int yc = uy0; yc <= uy1; yc++) {
for (int xc = ux0; xc <= ux1; xc++) {
ix0 = (xc == ux0) ? tx0 : 0;
ix1 = (xc == ux1) ? tx1 : TileSize - 1;
iy0 = (yc == uy0) ? ty0 : 0;
iy1 = (yc == uy1) ? ty1 : TileSize - 1;
updateBoundingBox(_tiles[xc + yc * _tilesW], ix0, iy0, ix1, iy1);
}
}
}
void MicroTileArray::clear() {
memset(_tiles, 0, _tilesW * _tilesH * sizeof(BoundingBox));
}
byte MicroTileArray::TileX0(const BoundingBox &boundingBox) {
return (boundingBox >> 24) & 0xFF;
}
byte MicroTileArray::TileY0(const BoundingBox &boundingBox) {
return (boundingBox >> 16) & 0xFF;
}
byte MicroTileArray::TileX1(const BoundingBox &boundingBox) {
return (boundingBox >> 8) & 0xFF;
}
byte MicroTileArray::TileY1(const BoundingBox &boundingBox) {
return boundingBox & 0xFF;
}
bool MicroTileArray::isBoundingBoxEmpty(const BoundingBox &boundingBox) {
return boundingBox == EmptyBoundingBox;
}
bool MicroTileArray::isBoundingBoxFull(const BoundingBox &boundingBox) {
return boundingBox == FullBoundingBox;
}
void MicroTileArray::setBoundingBox(BoundingBox &boundingBox, byte x0, byte y0, byte x1, byte y1) {
boundingBox = (x0 << 24) | (y0 << 16) | (x1 << 8) | y1;
}
void MicroTileArray::updateBoundingBox(BoundingBox &boundingBox, byte x0, byte y0, byte x1, byte y1) {
if (!isBoundingBoxEmpty(boundingBox)) {
x0 = MIN(TileX0(boundingBox), x0);
y0 = MIN(TileY0(boundingBox), y0);
x1 = MAX(TileX1(boundingBox), x1);
y1 = MAX(TileY1(boundingBox), y1);
}
setBoundingBox(boundingBox, x0, y0, x1, y1);
}
Common::Rect * MicroTileArray::getRectangles(int *num_rects, int min_x, int min_y, int max_x, int max_y) {
Common::Rect *rects = new Common::Rect[_tilesW * _tilesH];
int n_rects = 0;
int x, y;
int x0, y0, x1, y1;
int i = 0;
for (y = 0; y < _tilesH; ++y) {
for (x = 0; x < _tilesW; ++x) {
int start;
int finish = 0;
BoundingBox boundingBox;
boundingBox = _tiles[i];
if (isBoundingBoxEmpty(boundingBox))
goto next;
x0 = (x * TileSize) + TileX0(boundingBox);
y0 = (y * TileSize) + TileY0(boundingBox);
y1 = (y * TileSize) + TileY1(boundingBox);
x0 = CLIP (x0, min_x, max_x);
y0 = CLIP (y0, min_y, max_y);
y1 = CLIP (y1, min_y, max_y);
#if 1
start = i;
if (TileX1(boundingBox) != TileSize - 1 || x == _tilesW - 1) {
/* the tile does not continue */
goto done;
}
while (!finish) {
++x;
++i;
if (x == _tilesW || i >= _tilesW * _tilesH ||
TileY0(_tiles[i]) != TileY0(boundingBox) ||
TileY1(_tiles[i]) != TileY1(boundingBox) ||
TileX0(_tiles[i]) != 0)
{
--x;
--i;
finish = 1;
}
}
done:
#endif
x1 = (x * TileSize) + TileX1(_tiles[i]);
x1 = CLIP (x1, min_x, max_x);
#if 1
rects[n_rects].left = x0;
rects[n_rects].top = y0;
rects[n_rects].right = x1 + 1;
rects[n_rects].bottom = y1 + 1;
n_rects++;
fflush(stdout);
#else
if (glom [start] != -1 && /* try to glom */
rects [glom [start]].left == x0 &&
rects [glom [start]].right == x1 &&
rects [glom [start]].bottom == y0 - 1)
{
rects [glom [start]].bottom = y1;
if (y != tilesH - 1) {
glom [start + tilesW] = glom [start];
}
} else {
rects[n_rects].left = x0;
rects[n_rects].top = y0;
rects[n_rects].right = x1;
rects[n_rects].bottom = y1;
if (y != tilesH - 1) {
glom [start + tilesW] = n_rects;
}
n_rects ++;
}
#endif
next:
++i;
}
}
*num_rects = n_rects;
//delete glom;
return rects;
}
} // End of namespace Toltecs
|
