blob: 3648ae7f39ec759f61a21a6254759567544660a8 (
plain)
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
|
/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file script_map.hpp Everything to query and manipulate map metadata. */
#ifndef SCRIPT_MAP_HPP
#define SCRIPT_MAP_HPP
#include "script_object.hpp"
#include "../../tile_type.h"
/**
* Class that handles all map related functions.
* @api ai game
*/
class ScriptMap : public ScriptObject {
public:
static const int TILE_INVALID = (int)INVALID_TILE; ///< Invalid TileIndex.
/**
* Checks whether the given tile is valid.
* @param tile The tile to check.
* @return True is the tile it within the boundaries of the map.
*/
static bool IsValidTile(TileIndex tile);
/**
* Gets the number of tiles in the map.
* @return The size of the map in tiles.
* @post Return value is always positive.
*/
static TileIndex GetMapSize();
/**
* Gets the amount of tiles along the SW and NE border.
* @return The length along the SW and NE borders.
* @post Return value is always positive.
*/
static uint32 GetMapSizeX();
/**
* Gets the amount of tiles along the SE and NW border.
* @return The length along the SE and NW borders.
* @post Return value is always positive.
*/
static uint32 GetMapSizeY();
/**
* Gets the place along the SW/NE border (X-value).
* @param tile The tile to get the X-value of.
* @pre IsValidTile(tile).
* @return The X-value.
* @post Return value is always lower than GetMapSizeX().
*/
static int32 GetTileX(TileIndex tile);
/**
* Gets the place along the SE/NW border (Y-value).
* @param tile The tile to get the Y-value of.
* @pre IsValidTile(tile).
* @return The Y-value.
* @post Return value is always lower than GetMapSizeY().
*/
static int32 GetTileY(TileIndex tile);
/**
* Gets the TileIndex given a x,y-coordinate.
* @param x The X coordinate.
* @param y The Y coordinate.
* @pre x < GetMapSizeX().
* @pre y < GetMapSizeY().
* @return The TileIndex for the given (x,y) coordinate.
*/
static TileIndex GetTileIndex(uint32 x, uint32 y);
/**
* Calculates the Manhattan distance; the difference of
* the X and Y added together.
* @param tile_from The start tile.
* @param tile_to The destination tile.
* @pre IsValidTile(tile_from).
* @pre IsValidTile(tile_to).
* @return The Manhattan distance between the tiles.
*/
static int32 DistanceManhattan(TileIndex tile_from, TileIndex tile_to);
/**
* Calculates the distance between two tiles via 1D calculation.
* This means the distance between X or the distance between Y, depending
* on which one is bigger.
* @param tile_from The start tile.
* @param tile_to The destination tile.
* @pre IsValidTile(tile_from).
* @pre IsValidTile(tile_to).
* @return The maximum distance between the tiles.
*/
static int32 DistanceMax(TileIndex tile_from, TileIndex tile_to);
/**
* The squared distance between the two tiles.
* This is the distance is the length of the shortest straight line
* between both points.
* @param tile_from The start tile.
* @param tile_to The destination tile.
* @pre IsValidTile(tile_from).
* @pre IsValidTile(tile_to).
* @return The squared distance between the tiles.
*/
static int32 DistanceSquare(TileIndex tile_from, TileIndex tile_to);
/**
* Calculates the shortest distance to the edge.
* @param tile From where the distance has to be calculated.
* @pre IsValidTile(tile).
* @return The distances to the closest edge.
*/
static int32 DistanceFromEdge(TileIndex tile);
};
#endif /* SCRIPT_MAP_HPP */
|
