Chris Taylor / Mbed 2 deprecated RETRO-CityRally

Race around the city collecting the flags while avoiding those that stand in the way of your mission. Make no mistake you will need to be quick to outwit your opponents, they are smart and will try to box you in. I wrote this game to prove that writing a game with scrolling scenery is possible even with the limited 6kB of RAM available. I had to compromise sound effects for features, I wanted multiple opponents, I wanted to be able to drop smoke bombs to trap the opponents but all this required memory so the sound effects had to take a back seat.

Dependencies:   mbed

GameScreen.h@1:1b8125937f28, 2015-02-01 (annotated)

Committer:
taylorza
Date:
Sun Feb 01 00:43:25 2015 +0000
Revision:
1:1b8125937f28
Parent:
0:d85c449aca6d 
Minor updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
taylorza 0:d85c449aca6d 1 #include "Constants.h"
taylorza 0:d85c449aca6d 2 #include "GameEngine.h"
taylorza 0:d85c449aca6d 3 #include "Map.h"
taylorza 0:d85c449aca6d 4 #include "Assets.h"
taylorza 0:d85c449aca6d 5 #include "Flag.h"
taylorza 0:d85c449aca6d 6 #include "Enemy.h"
taylorza 0:d85c449aca6d 7 #include "Player.h"
taylorza 1:1b8125937f28 8 #include "Beeper.h"
taylorza 0:d85c449aca6d 9
taylorza 0:d85c449aca6d 10 #ifndef __GAMESCREEN_H__
taylorza 0:d85c449aca6d 11 #define __GAMESCREEN_H__
taylorza 0:d85c449aca6d 12
taylorza 0:d85c449aca6d 13 class GameScreen;
taylorza 0:d85c449aca6d 14
taylorza 0:d85c449aca6d 15 class GameScreen : public TileViewer
taylorza 0:d85c449aca6d 16 {
taylorza 0:d85c449aca6d 17 public:
taylorza 0:d85c449aca6d 18 GameScreen() : TileViewer(13, 16),
taylorza 0:d85c449aca6d 19 _player(Point(184, 400)),
taylorza 0:d85c449aca6d 20 _enemy1(Point(64, 464), Point(16, -32), Point(8, 8), _player),
taylorza 0:d85c449aca6d 21 _enemy2(Point(88, 464), Point(1024, -32), Point(32, 32), _player),
taylorza 0:d85c449aca6d 22 _enemy3(Point(112, 464), Point(16, 1024), Point(-32, -32), _player),
taylorza 1:1b8125937f28 23 _radarBitmap(46, 62),
taylorza 0:d85c449aca6d 24 _radarCanvas(&_radarBitmap),
taylorza 1:1b8125937f28 25 _updateCounter(0),
taylorza 1:1b8125937f28 26 _gameOver(false)
taylorza 0:d85c449aca6d 27 {
taylorza 0:d85c449aca6d 28 Game::Surface.setForegroundColor(Color565::White);
taylorza 0:d85c449aca6d 29 Game::Surface.setBackgroundColor(HUD_BACKGROUND);
taylorza 0:d85c449aca6d 30 setMap(map, 48, 64, blocks, sprites);
taylorza 0:d85c449aca6d 31 _radarCanvas.clear();
taylorza 0:d85c449aca6d 32
taylorza 0:d85c449aca6d 33 _cars[0] = &_player;
taylorza 0:d85c449aca6d 34 _cars[1] = &_enemy1;
taylorza 0:d85c449aca6d 35 _cars[2] = &_enemy2;
taylorza 0:d85c449aca6d 36 _cars[3] = &_enemy3;
taylorza 1:1b8125937f28 37
taylorza 1:1b8125937f28 38 placeFlags();
taylorza 1:1b8125937f28 39
taylorza 1:1b8125937f28 40 _player.setPosition(Point(184, 400));
taylorza 1:1b8125937f28 41 _player.setCars(_cars);
taylorza 1:1b8125937f28 42 _player.setFlags(_flags);
taylorza 0:d85c449aca6d 43
taylorza 1:1b8125937f28 44 addGameObject(&_enemy1);
taylorza 1:1b8125937f28 45 addGameObject(&_enemy2);
taylorza 1:1b8125937f28 46 addGameObject(&_enemy3);
taylorza 1:1b8125937f28 47 addGameObject(&_player);
taylorza 1:1b8125937f28 48
taylorza 1:1b8125937f28 49 track(&_player);
taylorza 1:1b8125937f28 50 }
taylorza 1:1b8125937f28 51
taylorza 1:1b8125937f28 52 void placeFlags()
taylorza 1:1b8125937f28 53 {
taylorza 0:d85c449aca6d 54 for(int i = 0; i < MAX_FLAGS; ++i)
taylorza 0:d85c449aca6d 55 {
taylorza 0:d85c449aca6d 56 int x = 0;
taylorza 0:d85c449aca6d 57 int y = 0;
taylorza 0:d85c449aca6d 58
taylorza 0:d85c449aca6d 59 for(;;)
taylorza 0:d85c449aca6d 60 {
taylorza 0:d85c449aca6d 61 x = rand() % getMapTilesX();
taylorza 0:d85c449aca6d 62 y = rand() % getMapTilesY();
taylorza 0:d85c449aca6d 63 const Block &block1 = getBlock(x * 8, y * 8);
taylorza 0:d85c449aca6d 64 if (&block1 == &blocks[0]) break;
taylorza 0:d85c449aca6d 65 }
taylorza 0:d85c449aca6d 66
taylorza 1:1b8125937f28 67 _flags[i].setActive(true);
taylorza 0:d85c449aca6d 68 _flags[i].setPosition(Point(x * 8, y * 8));
taylorza 0:d85c449aca6d 69 addGameObject(&_flags[i]);
taylorza 1:1b8125937f28 70 }
taylorza 0:d85c449aca6d 71 }
taylorza 1:1b8125937f28 72
taylorza 0:d85c449aca6d 73 virtual void update()
taylorza 0:d85c449aca6d 74 {
taylorza 0:d85c449aca6d 75 if (_player.getLives() > 0)
taylorza 0:d85c449aca6d 76 {
taylorza 1:1b8125937f28 77 if (_player.getFlagCount() == MAX_FLAGS)
taylorza 1:1b8125937f28 78 {
taylorza 1:1b8125937f28 79 if(_player.getFuel() > 0)
taylorza 1:1b8125937f28 80 {
taylorza 1:1b8125937f28 81 _player.decreaseFuel();
taylorza 1:1b8125937f28 82 _player.increaseScore(10);
taylorza 1:1b8125937f28 83 Beeper::beep(400 + (100 - _player.getFuel()) * 2, 5);
taylorza 1:1b8125937f28 84 }
taylorza 1:1b8125937f28 85 else
taylorza 1:1b8125937f28 86 {
taylorza 1:1b8125937f28 87 placeFlags();
taylorza 1:1b8125937f28 88
taylorza 1:1b8125937f28 89 for (int i = 0; i < MAX_CARS; ++i)
taylorza 1:1b8125937f28 90 {
taylorza 1:1b8125937f28 91 _cars[i]->reset();
taylorza 1:1b8125937f28 92 }
taylorza 1:1b8125937f28 93 }
taylorza 1:1b8125937f28 94 }
taylorza 1:1b8125937f28 95 else
taylorza 1:1b8125937f28 96 {
taylorza 1:1b8125937f28 97 TileViewer::update();
taylorza 1:1b8125937f28 98 }
taylorza 0:d85c449aca6d 99 }
taylorza 0:d85c449aca6d 100 else
taylorza 0:d85c449aca6d 101 {
taylorza 1:1b8125937f28 102 _gameOver = true;
taylorza 0:d85c449aca6d 103 }
taylorza 0:d85c449aca6d 104 }
taylorza 0:d85c449aca6d 105
taylorza 0:d85c449aca6d 106 virtual void draw()
taylorza 0:d85c449aca6d 107 {
taylorza 1:1b8125937f28 108 if (!_gameOver)
taylorza 0:d85c449aca6d 109 {
taylorza 1:1b8125937f28 110 TileViewer::draw();
taylorza 1:1b8125937f28 111 }
taylorza 1:1b8125937f28 112 else
taylorza 1:1b8125937f28 113 {
taylorza 1:1b8125937f28 114 Game::Surface.setForegroundColor(Color565::Red);
taylorza 1:1b8125937f28 115 Game::Surface.setBackgroundColor(Color565::Black);
taylorza 1:1b8125937f28 116 Game::Surface.drawString(font_ibm, 18, 60, "GAME OVER");
taylorza 0:d85c449aca6d 117 }
taylorza 0:d85c449aca6d 118
taylorza 1:1b8125937f28 119 // Update HUD
taylorza 1:1b8125937f28 120 if (_updateCounter++ % 8 == 0)
taylorza 1:1b8125937f28 121 {
taylorza 1:1b8125937f28 122 Game::Surface.drawBitmap(109, 17, getRadarBitmap(), 0, 0, 46, 62);
taylorza 0:d85c449aca6d 123
taylorza 1:1b8125937f28 124 char buffer[10];
taylorza 1:1b8125937f28 125 Game::Surface.setForegroundColor(Color565::Aqua);
taylorza 1:1b8125937f28 126 Game::Surface.setBackgroundColor(HUD_BACKGROUND);
taylorza 1:1b8125937f28 127 sprintf(buffer, "%d", _player.getScore());
taylorza 1:1b8125937f28 128 Game::Surface.drawString(font_ibm, 108, 4, buffer);
taylorza 1:1b8125937f28 129
taylorza 1:1b8125937f28 130 // Render lives
taylorza 1:1b8125937f28 131 for (int i = 0; i < _player.getLives(); ++i)
taylorza 1:1b8125937f28 132 {
taylorza 1:1b8125937f28 133 Game::Surface.drawBitmap(108 + i * 8, 100, spriteSheet, 56, 32, 8, 8);
taylorza 1:1b8125937f28 134 }
taylorza 1:1b8125937f28 135
taylorza 1:1b8125937f28 136 for (int i = _player.getLives(); i < MAX_LIVES; ++i)
taylorza 1:1b8125937f28 137 {
taylorza 1:1b8125937f28 138 Game::Surface.fillRect(108 + i * 8, 100, (108 + i * 8) + 8, 108, HUD_BACKGROUND);
taylorza 1:1b8125937f28 139 }
taylorza 1:1b8125937f28 140
taylorza 1:1b8125937f28 141 // Render fuel
taylorza 1:1b8125937f28 142 uint8_t limit = (uint8_t)(((float)_player.getFuel() / 100) * 48);
taylorza 1:1b8125937f28 143
taylorza 1:1b8125937f28 144 uint16_t fuelColor = limit < 15 ? Color565::Red : Color565::Yellow;
taylorza 1:1b8125937f28 145 Game::Surface.fillRect(108, 84, 108 + limit, 90, fuelColor);
taylorza 1:1b8125937f28 146 Game::Surface.fillRect(108 + limit + 1, 84, 160, 90, HUD_BACKGROUND);
taylorza 1:1b8125937f28 147
taylorza 1:1b8125937f28 148 // Fuel ticks
taylorza 1:1b8125937f28 149 Game::Surface.drawLine(108, 92, 114, 92, Color565::Red);
taylorza 1:1b8125937f28 150 Game::Surface.drawLine(108, 92, 108, 94, Color565::Red);
taylorza 1:1b8125937f28 151 Game::Surface.drawLine(114, 92, 114, 94, Color565::Red);
taylorza 1:1b8125937f28 152
taylorza 1:1b8125937f28 153
taylorza 1:1b8125937f28 154 Game::Surface.drawLine(115, 92, 156, 92, Color565::Yellow);
taylorza 1:1b8125937f28 155 for (int i = 12; i <= 48; i += 6)
taylorza 1:1b8125937f28 156 {
taylorza 1:1b8125937f28 157 Game::Surface.drawLine(108 + i, 92, 108 + i, 94, Color565::Yellow);
taylorza 1:1b8125937f28 158 }
taylorza 1:1b8125937f28 159 }
taylorza 0:d85c449aca6d 160 }
taylorza 0:d85c449aca6d 161
taylorza 0:d85c449aca6d 162 inline RallyCar** getCars() { return _cars; }
taylorza 0:d85c449aca6d 163
taylorza 1:1b8125937f28 164 void drawEntity(int16_t x, int16_t y, uint16_t color)
taylorza 1:1b8125937f28 165 {
taylorza 1:1b8125937f28 166 _radarCanvas.setPixel(x - 1, y - 1, color);
taylorza 1:1b8125937f28 167 _radarCanvas.setPixel(x, y - 1, color);
taylorza 1:1b8125937f28 168 _radarCanvas.setPixel(x + 1, y - 1, color);
taylorza 1:1b8125937f28 169
taylorza 1:1b8125937f28 170 _radarCanvas.setPixel(x - 1, y, color);
taylorza 1:1b8125937f28 171 _radarCanvas.setPixel(x, y, color);
taylorza 1:1b8125937f28 172 _radarCanvas.setPixel(x + 1, y, color);
taylorza 1:1b8125937f28 173
taylorza 1:1b8125937f28 174 _radarCanvas.setPixel(x - 1, y + 1, color);
taylorza 1:1b8125937f28 175 _radarCanvas.setPixel(x, y + 1, color);
taylorza 1:1b8125937f28 176 _radarCanvas.setPixel(x + 1, y + 1, color);
taylorza 1:1b8125937f28 177 }
taylorza 1:1b8125937f28 178
taylorza 0:d85c449aca6d 179 Bitmap2bpp& getRadarBitmap()
taylorza 0:d85c449aca6d 180 {
taylorza 0:d85c449aca6d 181 _radarCanvas.clear();
taylorza 0:d85c449aca6d 182
taylorza 0:d85c449aca6d 183 for (int i = 0; i < MAX_FLAGS; ++i)
taylorza 0:d85c449aca6d 184 {
taylorza 0:d85c449aca6d 185 Flag &flag = _flags[i];
taylorza 0:d85c449aca6d 186 if (flag.getActive())
taylorza 0:d85c449aca6d 187 {
taylorza 1:1b8125937f28 188 drawEntity(flag.getPosition().X / 8, flag.getPosition().Y / 8, 3);
taylorza 0:d85c449aca6d 189 }
taylorza 0:d85c449aca6d 190 }
taylorza 0:d85c449aca6d 191
taylorza 1:1b8125937f28 192 drawEntity(_enemy1.getPosition().X / 8, _enemy1.getPosition().Y / 8, 2);
taylorza 1:1b8125937f28 193 drawEntity(_enemy2.getPosition().X / 8, _enemy2.getPosition().Y / 8, 2);
taylorza 1:1b8125937f28 194 drawEntity(_enemy3.getPosition().X / 8, _enemy3.getPosition().Y / 8, 2);
taylorza 1:1b8125937f28 195 drawEntity(_player.getPosition().X / 8, _player.getPosition().Y / 8, 1);
taylorza 0:d85c449aca6d 196
taylorza 0:d85c449aca6d 197 return _radarBitmap;
taylorza 0:d85c449aca6d 198 }
taylorza 0:d85c449aca6d 199
taylorza 0:d85c449aca6d 200 private:
taylorza 0:d85c449aca6d 201 Player _player;
taylorza 0:d85c449aca6d 202 Enemy _enemy1;
taylorza 0:d85c449aca6d 203 Enemy _enemy2;
taylorza 0:d85c449aca6d 204 Enemy _enemy3;
taylorza 0:d85c449aca6d 205
taylorza 0:d85c449aca6d 206 RallyCar *_cars[MAX_CARS];
taylorza 0:d85c449aca6d 207 Flag _flags[MAX_FLAGS];
taylorza 0:d85c449aca6d 208
taylorza 0:d85c449aca6d 209 Bitmap2bpp _radarBitmap;
taylorza 0:d85c449aca6d 210 Canvas<Bitmap2bpp> _radarCanvas;
taylorza 0:d85c449aca6d 211
taylorza 0:d85c449aca6d 212 uint8_t _updateCounter;
taylorza 1:1b8125937f28 213 bool _gameOver;
taylorza 0:d85c449aca6d 214 };
taylorza 0:d85c449aca6d 215 #endif //__GAMESCREEN_H__