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
|
#include "game_state.h"
#include <iostream>
#include <fstream>
#include <limits>
#include <bitset>
const int OPENING_LINES = 6;
const int GAME_AREA_LINES = 25;
const int GAME_WIDTH = 19;
void moveToNextChar(int &x, int &y, int &width, char &nextChar, std::istream &mapFile)
{
if (nextChar == '\n')
{
x = 0;
++y;
}
else
{
x += width;
}
if (width > 1)
{
mapFile.ignore(width-1);
}
nextChar = mapFile.get();
}
GameState::GameState(std::istream &&mapFile)
{
for (int i=0; i<OPENING_LINES; ++i)
{
mapFile.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
char nextChar = mapFile.get();
for (int x=0, y=0, width=1;
y < GAME_AREA_LINES && nextChar != EOF;
moveToNextChar(x, y, width, nextChar, mapFile))
{
width = addEntity(x, y, nextChar);
}
}
int GameState::addEntity(int x, int y, char type)
{
switch (type)
{
case Alien::MAP_CHAR:
_aliens.push_back(Alien(x,y));
return 1;
case EnemyBullet::ALIEN_MAP_CHAR:
case EnemyBullet::ENEMY_MISSILE_MAP_CHAR:
_bullets.push_back(EnemyBullet(x,y));
return 1;
case PlayerMissile::MAP_CHAR:
_missiles.push_back(PlayerMissile(x,y));
return 1;
case Shield::MAP_CHAR:
_shields.push_back(Shield(x,y));
return 1;
case Spaceship::ENEMY_MAP_CHAR:
_enemySpaceship = std::unique_ptr<Spaceship>(new Spaceship(x+1, y));
return 3;
case Spaceship::PLAYER_MAP_CHAR:
_playerSpaceship = std::unique_ptr<Spaceship>(new Spaceship(x+1, y));
return 3;
}
return 1;
}
void GameState::logState()
{
for (auto alien : _aliens)
{
std::cout << "Alien " << alien.coords() << std::endl;
}
for (auto bullet : _bullets)
{
std::cout << "Enemy Bullet" << bullet.coords() << std::endl;
}
for (auto missile : _missiles)
{
std::cout << "Player Missile" << missile.coords() << std::endl;
}
for (auto shield : _shields)
{
std::cout << "Shield" << shield.coords() << std::endl;
}
if (_playerSpaceship)
{
std::cout << "Player Spaceship" << _playerSpaceship->coords() << std::endl;
}
if (_enemySpaceship)
{
std::cout << "Enemy Spaceship" << _enemySpaceship->coords() << std::endl;
}
}
int getPyramidOffset(int bottomWidth, int x, int y, int resultIfLeft, int resultIfRight)
{
int currentRowWidth = bottomWidth;
int currentRowOffset = 0;
for (int i=0; i<y; ++i)
{
currentRowOffset += currentRowWidth;
currentRowWidth += 2;
}
if (x > currentRowWidth/2)
{
return resultIfRight;
}
else if (x < -currentRowWidth/2)
{
return resultIfLeft;
}
else
{
return currentRowOffset + currentRowWidth/2 + x;
}
}
int getRectangularOffset(int width, int x, int y)
{
int currentRowOffset = width*y;
return currentRowOffset + width/2 + x;
}
std::vector<bool> GameState::toBitArray() const
{
std::vector<bool> result(171);
int alienOffset = 0; //Aliens are 0 to 100
int bulletOffset = 101; //Bullets are 101 to 135
int shieldOffset = 136; //Shields are 136 to 150
int missileOffset = 151; //Missile info is 151 to 152
int positionOffset = 153; //Position is 153 to 168
int existingBuildingsOffset = 169; //Existing buildings is 169 to 170
int canBuildOffset = 171; //Can build here is 171
int playerX = GAME_WIDTH/2;
int playerY = GAME_AREA_LINES-3;
if (_playerSpaceship)
{
playerX = _playerSpaceship->x();
}
for (auto alien : _aliens)
{
if (alien.y() >= playerY || alien.y() < playerY-9)
{
continue;
}
result.at(alienOffset + getPyramidOffset(3, alien.x()-playerX, playerY-1-alien.y(), 99, 100)) = true;
}
for (auto bullet : _bullets)
{
if (bullet.y() >= playerY || bullet.y() < playerY-5 || bullet.x() > playerX+3 || bullet.x() < playerX-3)
{
continue;
}
result.at(bulletOffset + getRectangularOffset(7, bullet.x()-playerX, playerY-1-bullet.y())) = true;
}
return result;
}
|
