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
|
/*
* The Mana World Server
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or any later version.
*
* The Mana World is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with The Mana World; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include <cassert>
#include "game-server/map.hpp"
#include "game-server/mapcomposite.hpp"
#include "game-server/movingobject.hpp"
void MovingObject::setPosition(const Point &p)
{
//update blockmap
if (getMap())
{
Point oldP = getPosition();
if ((oldP.x / 32 != p.x / 32 || oldP.y / 32 != p.y / 32))
{
getMap()->getMap()->freeTile(oldP.x / 32, oldP.y / 32, getBlockType());
getMap()->getMap()->blockTile(p.x / 32, p.y / 32, getBlockType());
}
}
Object::setPosition(p);
}
void MovingObject::setMap(MapComposite *map)
{
assert (map);
MapComposite *oldMap = getMap();
Point p = getPosition();
if (oldMap)
{
oldMap->getMap()->freeTile(p.x / 32, p.y / 32, getBlockType());
}
Object::setMap(map);
map->getMap()->blockTile(p.x / 32, p.y / 32, getBlockType());
/* the last line might look illogical because the current position is
* invalid on the new map, but it is necessary to block the old position
* because the next call of setPosition() will automatically free the old
* position. When we don't block the position now the occupation counting
* will be off.
*/
}
void MovingObject::setDestination(Point const &dst)
{
mDst = dst;
raiseUpdateFlags(UPDATEFLAG_NEW_DESTINATION);
mPath.clear();
}
void MovingObject::move()
{
mOld = getPosition();
if (mActionTime > 100)
{
// Current move has not yet ended
mActionTime -= 100;
return;
}
int tileSX = mOld.x / 32, tileSY = mOld.y / 32;
int tileDX = mDst.x / 32, tileDY = mDst.y / 32;
if (tileSX == tileDX && tileSY == tileDY)
{
// Moving while staying on the same tile is free
setPosition(mDst);
mActionTime = 0;
return;
}
Map *map = getMap()->getMap();
/* If no path exists, the for-loop won't be entered. Else a path for the
* current destination has already been calculated.
* The tiles in this path have to be checked for walkability,
* in case there have been changes. The 'getWalk' method of the Map
* class has been used, because that seems to be the most logical
* place extra functionality will be added.
*/
for (std::list<PATH_NODE>::iterator pathIterator = mPath.begin();
pathIterator != mPath.end(); pathIterator++)
{
if (!map->getWalk(pathIterator->x, pathIterator->y, getWalkMask()))
{
mPath.clear();
break;
}
}
if (mPath.empty())
{
// No path exists: the walkability of cached path has changed, the
// destination has changed, or a path was never set.
mPath = map->findPath(tileSX, tileSY, tileDX, tileDY, getWalkMask());
}
if (mPath.empty())
{
// no path was found
mDst = mOld;
mActionTime = 0;
return;
}
PATH_NODE prev(tileSX, tileSY);
Point pos;
do
{
PATH_NODE next = mPath.front();
mPath.pop_front();
mActionTime += (prev.x != next.x && prev.y != next.y)
? mSpeed * 362 / 256 : mSpeed;
if (mPath.empty())
{
// skip last tile center
pos = mDst;
break;
}
pos.x = next.x * 32 + 16;
pos.y = next.y * 32 + 16;
}
while (mActionTime < 100);
setPosition(pos);
mActionTime = mActionTime > 100 ? mActionTime - 100 : 0;
}
|
