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
|
//========================================================================
// dng
//------------------------------------------------------------------------
// Copyright (c) 2022 Steph Enders <steph@senders.io>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
#include "Level.h"
#include "SfmlUtils.h"
#include <fstream>
#include <string>
bool canStep(const Pos &pos, int dx, int dy,
std::vector<std::vector<char>> map) {
return map[pos.y + dy][pos.x + dx] != WALL_SPACE;
}
Level::Level(const char *filePath) {
this->file = std::make_unique<std::string>(filePath);
}
void Level::load() {
std::ifstream mapFile(this->file->c_str());
if (mapFile.is_open()) {
// each element in the map has a unique ID
// some magic but player is always 0
const int playerId = 0;
// from 1 -> N each enemy and treasure has its own unique ID
// IDs are unique entirely, not just per enemy or treasure
std::string line;
int y = 0;
while (std::getline(mapFile, line)) {
this->map.emplace_back();
int x = 0;
for (char c : line) {
if (c == WALL_TKN) {
this->map[y].push_back(WALL_SPACE);
auto w = create_wall(x, y);
this->displayMap.push_back(w);
} else if (c == EMPTY_TKN) {
this->map[y].push_back(BLANK_SPACE);
// no display info
} else if (c == ENEMY_TKN) {
auto e = create_enemy(x, y);
this->enemyPositions.push_back(
{.token = c, .id = this->nextId(), .x = x, .y = y, .sprite = e});
this->map[y].push_back(BLANK_SPACE);
} else if (c == PLAYER_TKN) {
auto p = create_player(x, y);
this->player = {
.token = c, .id = playerId, .x = x, .y = y, .sprite = p};
this->map[y].push_back(BLANK_SPACE);
} else if (c == TREASURE_TKN) {
auto t = create_treasure(x, y);
this->treasurePositions.push_back(
{.token = c, .id = this->nextId(), .x = x, .y = y, .sprite = t});
this->map[y].push_back(BLANK_SPACE);
} else if (c >= KEY_TKN_START && c <= KEY_TKN_END) {
auto k = create_key(c, x, y);
this->keyPositions.push_back(
{.token = c, .id = this->nextId(), .x = x, .y = y, .sprite = k});
this->map[y].push_back(BLANK_SPACE);
} else if (c >= DOOR_TKN_START && c <= DOOR_TKN_END) {
auto d = create_door(c, x, y);
this->doorPositions.push_back(
{.token = c, .id = this->nextId(), .x = x, .y = y, .sprite = d});
this->map[y].push_back(WALL_SPACE);
} else {
continue;
}
++x;
}
++y;
}
unsigned long max_width = 0;
for (auto &rows : this->map) {
if (max_width < rows.size()) {
max_width = rows.size();
}
}
this->width = static_cast<int>(max_width);
this->height = static_cast<int>(this->map.size());
}
mapFile.close();
}
void Level::reset() {
this->map.clear();
this->treasurePositions.clear();
this->displayMap.clear();
this->enemyPositions.clear();
this->keyPositions.clear();
this->doorPositions.clear();
this->load();
}
bool Level::playerCanStep(int dx, int dy) const {
bool check_wall = canStep(player, dx, dy, map);
auto new_pos_x = player.x + dx;
auto new_pos_y = player.y + dy;
return check_wall ||
(isDoor(new_pos_x, new_pos_y) && tryDoor(new_pos_x, new_pos_y));
}
bool Level::isDoor(int x, int y) const {
for (auto &d : doorPositions) {
if (d.x == x && d.y == y) {
return true;
}
}
return false;
}
bool Level::tryDoor(int x, int y) const {
for (auto &d : doorPositions) {
if (d.x == x && d.y == y) {
char door_token = d.token;
for (auto &k : heldKeys) {
if (KEY_DOOR_MAPPING[k - KEY_TKN_START] == door_token) {
return true;
}
}
// matched door pos but not openable
return false;
}
}
// not a door?
return false;
}
int Level::nextId() { return idCounter++; }
int Level::getEnemyIndex(int id) {
for (int i = 0; i < enemyPositions.size(); i++) {
if (enemyPositions[i].id == id) {
return i;
}
}
return -1;
}
bool Level::enemyCanStep(const Pos &pos, int dx, int dy) const {
return canStep(pos, dx, dy, map);
}
int Level::getWidth() const { return this->width; }
int Level::getHeight() const { return this->height; }
|