jumpman lcd game

1#include <LiquidCrystal.h>
2
3#define PIN_BUTTON 2
4#define PIN_AUTOPLAY 1
5#define PIN_READWRITE 10
6#define PIN_CONTRAST 12
7
8#define SPRITE_RUN1 1
9#define SPRITE_RUN2 2
10#define SPRITE_JUMP 3
11#define SPRITE_JUMP_UPPER '.'         // Use the '.' character for the head
12#define SPRITE_JUMP_LOWER 4
13#define SPRITE_TERRAIN_EMPTY ' '      // User the ' ' character
14#define SPRITE_TERRAIN_SOLID 5
15#define SPRITE_TERRAIN_SOLID_RIGHT 6
16#define SPRITE_TERRAIN_SOLID_LEFT 7
17
18#define HERO_HORIZONTAL_POSITION 1    // Horizontal position of hero on screen
19
20#define TERRAIN_WIDTH 16
21#define TERRAIN_EMPTY 0
22#define TERRAIN_LOWER_BLOCK 1
23#define TERRAIN_UPPER_BLOCK 2
24
25#define HERO_POSITION_OFF 0          // Hero is invisible
26#define HERO_POSITION_RUN_LOWER_1 1  // Hero is running on lower row (pose 1)
27#define HERO_POSITION_RUN_LOWER_2 2  //                              (pose 2)
28
29#define HERO_POSITION_JUMP_1 3       // Starting a jump
30#define HERO_POSITION_JUMP_2 4       // Half-way up
31#define HERO_POSITION_JUMP_3 5       // Jump is on upper row
32#define HERO_POSITION_JUMP_4 6       // Jump is on upper row
33#define HERO_POSITION_JUMP_5 7       // Jump is on upper row
34#define HERO_POSITION_JUMP_6 8       // Jump is on upper row
35#define HERO_POSITION_JUMP_7 9       // Half-way down
36#define HERO_POSITION_JUMP_8 10      // About to land
37
38#define HERO_POSITION_RUN_UPPER_1 11 // Hero is running on upper row (pose 1)
39#define HERO_POSITION_RUN_UPPER_2 12 //                              (pose 2)
40
41LiquidCrystal lcd(11, 9, 6, 5, 4, 3);
42static char terrainUpper[TERRAIN_WIDTH + 1];
43static char terrainLower[TERRAIN_WIDTH + 1];
44static bool buttonPushed = false;
45
46void initializeGraphics(){
47  static byte graphics[] = {
48    // Run position 1
49    B01100,
50    B01100,
51    B00000,
52    B01110,
53    B11100,
54    B01100,
55    B11010,
56    B10011,
57    // Run position 2
58    B01100,
59    B01100,
60    B00000,
61    B01100,
62    B01100,
63    B01100,
64    B01100,
65    B01110,
66    // Jump
67    B01100,
68    B01100,
69    B00000,
70    B11110,
71    B01101,
72    B11111,
73    B10000,
74    B00000,
75    // Jump lower
76    B11110,
77    B01101,
78    B11111,
79    B10000,
80    B00000,
81    B00000,
82    B00000,
83    B00000,
84    // Ground
85    B11111,
86    B11111,
87    B11111,
88    B11111,
89    B11111,
90    B11111,
91    B11111,
92    B11111,
93    // Ground right
94    B00011,
95    B00011,
96    B00011,
97    B00011,
98    B00011,
99    B00011,
100    B00011,
101    B00011,
102    // Ground left
103    B11000,
104    B11000,
105    B11000,
106    B11000,
107    B11000,
108    B11000,
109    B11000,
110    B11000,
111  };
112  int i;
113  // Skip using character 0, this allows lcd.print() to be used to
114  // quickly draw multiple characters
115  for (i = 0; i < 7; ++i) {
116	  lcd.createChar(i + 1, &graphics[i * 8]);
117  }
118  for (i = 0; i < TERRAIN_WIDTH; ++i) {
119    terrainUpper[i] = SPRITE_TERRAIN_EMPTY;
120    terrainLower[i] = SPRITE_TERRAIN_EMPTY;
121  }
122}
123
124// Slide the terrain to the left in half-character increments
125//
126void advanceTerrain(char* terrain, byte newTerrain){
127  for (int i = 0; i < TERRAIN_WIDTH; ++i) {
128    char current = terrain[i];
129    char next = (i == TERRAIN_WIDTH-1) ? newTerrain : terrain[i+1];
130    switch (current){
131      case SPRITE_TERRAIN_EMPTY:
132        terrain[i] = (next == SPRITE_TERRAIN_SOLID) ? SPRITE_TERRAIN_SOLID_RIGHT : SPRITE_TERRAIN_EMPTY;
133        break;
134      case SPRITE_TERRAIN_SOLID:
135        terrain[i] = (next == SPRITE_TERRAIN_EMPTY) ? SPRITE_TERRAIN_SOLID_LEFT : SPRITE_TERRAIN_SOLID;
136        break;
137      case SPRITE_TERRAIN_SOLID_RIGHT:
138        terrain[i] = SPRITE_TERRAIN_SOLID;
139        break;
140      case SPRITE_TERRAIN_SOLID_LEFT:
141        terrain[i] = SPRITE_TERRAIN_EMPTY;
142        break;
143    }
144  }
145}
146
147bool drawHero(byte position, char* terrainUpper, char* terrainLower, unsigned int score) {
148  bool collide = false;
149  char upperSave = terrainUpper[HERO_HORIZONTAL_POSITION];
150  char lowerSave = terrainLower[HERO_HORIZONTAL_POSITION];
151  byte upper, lower;
152  switch (position) {
153    case HERO_POSITION_OFF:
154      upper = lower = SPRITE_TERRAIN_EMPTY;
155      break;
156    case HERO_POSITION_RUN_LOWER_1:
157      upper = SPRITE_TERRAIN_EMPTY;
158      lower = SPRITE_RUN1;
159      break;
160    case HERO_POSITION_RUN_LOWER_2:
161      upper = SPRITE_TERRAIN_EMPTY;
162      lower = SPRITE_RUN2;
163      break;
164    case HERO_POSITION_JUMP_1:
165    case HERO_POSITION_JUMP_8:
166      upper = SPRITE_TERRAIN_EMPTY;
167      lower = SPRITE_JUMP;
168      break;
169    case HERO_POSITION_JUMP_2:
170    case HERO_POSITION_JUMP_7:
171      upper = SPRITE_JUMP_UPPER;
172      lower = SPRITE_JUMP_LOWER;
173      break;
174    case HERO_POSITION_JUMP_3:
175    case HERO_POSITION_JUMP_4:
176    case HERO_POSITION_JUMP_5:
177    case HERO_POSITION_JUMP_6:
178      upper = SPRITE_JUMP;
179      lower = SPRITE_TERRAIN_EMPTY;
180      break;
181    case HERO_POSITION_RUN_UPPER_1:
182      upper = SPRITE_RUN1;
183      lower = SPRITE_TERRAIN_EMPTY;
184      break;
185    case HERO_POSITION_RUN_UPPER_2:
186      upper = SPRITE_RUN2;
187      lower = SPRITE_TERRAIN_EMPTY;
188      break;
189  }
190  if (upper != ' ') {
191    terrainUpper[HERO_HORIZONTAL_POSITION] = upper;
192    collide = (upperSave == SPRITE_TERRAIN_EMPTY) ? false : true;
193  }
194  if (lower != ' ') {
195    terrainLower[HERO_HORIZONTAL_POSITION] = lower;
196    collide |= (lowerSave == SPRITE_TERRAIN_EMPTY) ? false : true;
197  }
198  
199  byte digits = (score > 9999) ? 5 : (score > 999) ? 4 : (score > 99) ? 3 : (score > 9) ? 2 : 1;
200  
201  // Draw the scene
202  terrainUpper[TERRAIN_WIDTH] = '\0';
203  terrainLower[TERRAIN_WIDTH] = '\0';
204  char temp = terrainUpper[16-digits];
205  terrainUpper[16-digits] = '\0';
206  lcd.setCursor(0,0);
207  lcd.print(terrainUpper);
208  terrainUpper[16-digits] = temp;  
209  lcd.setCursor(0,1);
210  lcd.print(terrainLower);
211  
212  lcd.setCursor(16 - digits,0);
213  lcd.print(score);
214
215  terrainUpper[HERO_HORIZONTAL_POSITION] = upperSave;
216  terrainLower[HERO_HORIZONTAL_POSITION] = lowerSave;
217  return collide;
218}
219
220// Handle the button push as an interrupt
221void buttonPush() {
222  buttonPushed = true;
223}
224
225void setup(){
226  pinMode(PIN_READWRITE, OUTPUT);
227  digitalWrite(PIN_READWRITE, LOW);
228  pinMode(PIN_CONTRAST, OUTPUT);
229  digitalWrite(PIN_CONTRAST, LOW);
230  pinMode(PIN_BUTTON, INPUT);
231  digitalWrite(PIN_BUTTON, HIGH);
232  pinMode(PIN_AUTOPLAY, OUTPUT);
233  digitalWrite(PIN_AUTOPLAY, HIGH);
234  
235  // Digital pin 2 maps to interrupt 0
236  attachInterrupt(0/*PIN_BUTTON*/, buttonPush, FALLING);
237  
238  initializeGraphics();
239  
240  lcd.begin(16, 2);
241}
242
243void loop(){
244  static byte heroPos = HERO_POSITION_RUN_LOWER_1;
245  static byte newTerrainType = TERRAIN_EMPTY;
246  static byte newTerrainDuration = 1;
247  static bool playing = false;
248  static bool blink = false;
249  static unsigned int distance = 0;
250  
251  if (!playing) {
252    drawHero((blink) ? HERO_POSITION_OFF : heroPos, terrainUpper, terrainLower, distance >> 3);
253    if (blink) {
254      lcd.setCursor(0,0);
255      lcd.print("Press Start");
256    }
257    delay(250);
258    blink = !blink;
259    if (buttonPushed) {
260      initializeGraphics();
261      heroPos = HERO_POSITION_RUN_LOWER_1;
262      playing = true;
263      buttonPushed = false;
264      distance = 0;
265    }
266    return;
267  }
268
269  // Shift the terrain to the left
270  advanceTerrain(terrainLower, newTerrainType == TERRAIN_LOWER_BLOCK ? SPRITE_TERRAIN_SOLID : SPRITE_TERRAIN_EMPTY);
271  advanceTerrain(terrainUpper, newTerrainType == TERRAIN_UPPER_BLOCK ? SPRITE_TERRAIN_SOLID : SPRITE_TERRAIN_EMPTY);
272  
273  // Make new terrain to enter on the right
274  if (--newTerrainDuration == 0) {
275    if (newTerrainType == TERRAIN_EMPTY) {
276      newTerrainType = (random(3) == 0) ? TERRAIN_UPPER_BLOCK : TERRAIN_LOWER_BLOCK;
277      newTerrainDuration = 2 + random(10);
278    } else {
279      newTerrainType = TERRAIN_EMPTY;
280      newTerrainDuration = 10 + random(10);
281    }
282  }
283    
284  if (buttonPushed) {
285    if (heroPos <= HERO_POSITION_RUN_LOWER_2) heroPos = HERO_POSITION_JUMP_1;
286    buttonPushed = false;
287  }  
288
289  if (drawHero(heroPos, terrainUpper, terrainLower, distance >> 3)) {
290    playing = false; // The hero collided with something. Too bad.
291  } else {
292    if (heroPos == HERO_POSITION_RUN_LOWER_2 || heroPos == HERO_POSITION_JUMP_8) {
293      heroPos = HERO_POSITION_RUN_LOWER_1;
294    } else if ((heroPos >= HERO_POSITION_JUMP_3 && heroPos <= HERO_POSITION_JUMP_5) && terrainLower[HERO_HORIZONTAL_POSITION] != SPRITE_TERRAIN_EMPTY) {
295      heroPos = HERO_POSITION_RUN_UPPER_1;
296    } else if (heroPos >= HERO_POSITION_RUN_UPPER_1 && terrainLower[HERO_HORIZONTAL_POSITION] == SPRITE_TERRAIN_EMPTY) {
297      heroPos = HERO_POSITION_JUMP_5;
298    } else if (heroPos == HERO_POSITION_RUN_UPPER_2) {
299      heroPos = HERO_POSITION_RUN_UPPER_1;
300    } else {
301      ++heroPos;
302    }
303    ++distance;
304    
305    digitalWrite(PIN_AUTOPLAY, terrainLower[HERO_HORIZONTAL_POSITION + 2] == SPRITE_TERRAIN_EMPTY ? HIGH : LOW);
306  }
307  delay(50);
308}