Arduino LCD Video Game

1#include <LiquidCrystal.h>
2
3#define PIN_BUTTON 2
4#define PIN_AUTOPLAY  1
5#define PIN_BUZZER 8
6#define PIN_READWRITE 10
7#define PIN_CONTRAST 12
8
9#define  SPRITE_RUN1 1
10#define SPRITE_RUN2 2
11#define SPRITE_JUMP 3
12#define SPRITE_JUMP_UPPER  '.'         // Use the '.' character for the head
13#define SPRITE_JUMP_LOWER 4
14#define  SPRITE_TERRAIN_EMPTY ' '      // User the ' ' character
15#define SPRITE_TERRAIN_SOLID  5
16#define SPRITE_TERRAIN_SOLID_RIGHT 6
17#define SPRITE_TERRAIN_SOLID_LEFT 7
18
19#define  HERO_HORIZONTAL_POSITION 1    // Horizontal position of hero on screen
20
21#define  TERRAIN_WIDTH 16
22#define TERRAIN_EMPTY 0
23#define TERRAIN_LOWER_BLOCK 1
24#define  TERRAIN_UPPER_BLOCK 2
25
26#define HERO_POSITION_OFF 0          // Hero is invisible
27#define  HERO_POSITION_RUN_LOWER_1 1  // Hero is running on lower row (pose 1)
28#define  HERO_POSITION_RUN_LOWER_2 2  //                              (pose 2)
29
30#define  HERO_POSITION_JUMP_1 3       // Starting a jump
31#define HERO_POSITION_JUMP_2  4       // Half-way up
32#define HERO_POSITION_JUMP_3 5       // Jump is on upper  row
33#define HERO_POSITION_JUMP_4 6       // Jump is on upper row
34#define HERO_POSITION_JUMP_5  7       // Jump is on upper row
35#define HERO_POSITION_JUMP_6 8       // Jump  is on upper row
36#define HERO_POSITION_JUMP_7 9       // Half-way down
37#define  HERO_POSITION_JUMP_8 10      // About to land
38
39#define HERO_POSITION_RUN_UPPER_1  11 // Hero is running on upper row (pose 1)
40#define HERO_POSITION_RUN_UPPER_2  12 //                              (pose 2)
41
42LiquidCrystal lcd(11, 9, 6, 5,  4, 3);
43static char terrainUpper[TERRAIN_WIDTH + 1];
44static char terrainLower[TERRAIN_WIDTH  + 1];
45static bool buttonPushed = false;
46
47void initializeGraphics(){
48  static byte graphics[] = {
49    // Run position 1
50    B01100,
51    B01100,
52    B00000,
53    B01110,
54    B11100,
55    B01100,
56    B11010,
57    B10011,
58    // Run position 2
59    B01100,
60    B01100,
61    B00000,
62    B01100,
63    B01100,
64    B01100,
65    B01100,
66    B01110,
67    // Jump
68    B01100,
69    B01100,
70    B00000,
71    B11110,
72    B01101,
73    B11111,
74    B10000,
75    B00000,
76    // Jump lower
77    B11110,
78    B01101,
79    B11111,
80    B10000,
81    B00000,
82    B00000,
83    B00000,
84    B00000,
85    //  Ground
86    B11111,
87    B11111,
88    B11111,
89    B11111,
90    B11111,
91    B11111,
92    B11111,
93    B11111,
94    // Ground right
95    B00011,
96    B00011,
97    B00011,
98    B00011,
99    B00011,
100    B00011,
101    B00011,
102    B00011,
103    // Ground left
104    B11000,
105    B11000,
106    B11000,
107    B11000,
108    B11000,
109    B11000,
110    B11000,
111    B11000,
112  };
113  int i;
114  // Skip using character 0, this allows lcd.print() to be used to
115  // quickly draw multiple characters
116  for (i = 0; i < 7; ++i) {
117	  lcd.createChar(i  + 1, &graphics[i * 8]);
118  }
119  for (i = 0; i < TERRAIN_WIDTH; ++i) {
120    terrainUpper[i]  = SPRITE_TERRAIN_EMPTY;
121    terrainLower[i] = SPRITE_TERRAIN_EMPTY;
122  }
123}
124
125//  Slide the terrain to the left in half-character increments
126//
127void advanceTerrain(char*  terrain, byte newTerrain){
128  for (int i = 0; i < TERRAIN_WIDTH; ++i) {
129    char  current = terrain[i];
130    char next = (i == TERRAIN_WIDTH-1) ? newTerrain : terrain[i+1];
131    switch (current){
132      case SPRITE_TERRAIN_EMPTY:
133        terrain[i]  = (next == SPRITE_TERRAIN_SOLID) ? SPRITE_TERRAIN_SOLID_RIGHT : SPRITE_TERRAIN_EMPTY;
134        break;
135      case SPRITE_TERRAIN_SOLID:
136        terrain[i] = (next  == SPRITE_TERRAIN_EMPTY) ? SPRITE_TERRAIN_SOLID_LEFT : SPRITE_TERRAIN_SOLID;
137        break;
138      case SPRITE_TERRAIN_SOLID_RIGHT:
139        terrain[i] =  SPRITE_TERRAIN_SOLID;
140        break;
141      case SPRITE_TERRAIN_SOLID_LEFT:
142        terrain[i] = SPRITE_TERRAIN_EMPTY;
143        break;
144    }
145  }
146}
147
148bool  drawHero(byte position, char* terrainUpper, char* terrainLower, unsigned int score)  {
149  bool collide = false;
150  char upperSave = terrainUpper[HERO_HORIZONTAL_POSITION];
151  char lowerSave = terrainLower[HERO_HORIZONTAL_POSITION];
152  byte upper, lower;
153  switch (position) {
154    case HERO_POSITION_OFF:
155      upper = lower = SPRITE_TERRAIN_EMPTY;
156      break;
157    case HERO_POSITION_RUN_LOWER_1:
158      upper = SPRITE_TERRAIN_EMPTY;
159      lower = SPRITE_RUN1;
160      break;
161    case HERO_POSITION_RUN_LOWER_2:
162      upper = SPRITE_TERRAIN_EMPTY;
163      lower = SPRITE_RUN2;
164      break;
165    case HERO_POSITION_JUMP_1:
166    case HERO_POSITION_JUMP_8:
167      upper  = SPRITE_TERRAIN_EMPTY;
168      lower = SPRITE_JUMP;
169      break;
170    case  HERO_POSITION_JUMP_2:
171    case HERO_POSITION_JUMP_7:
172      upper = SPRITE_JUMP_UPPER;
173      lower = SPRITE_JUMP_LOWER;
174      break;
175    case HERO_POSITION_JUMP_3:
176    case HERO_POSITION_JUMP_4:
177    case HERO_POSITION_JUMP_5:
178    case HERO_POSITION_JUMP_6:
179      upper = SPRITE_JUMP;
180      lower = SPRITE_TERRAIN_EMPTY;
181      break;
182    case HERO_POSITION_RUN_UPPER_1:
183      upper = SPRITE_RUN1;
184      lower  = SPRITE_TERRAIN_EMPTY;
185      break;
186    case HERO_POSITION_RUN_UPPER_2:
187      upper = SPRITE_RUN2;
188      lower = SPRITE_TERRAIN_EMPTY;
189      break;
190  }
191  if (upper != ' ') {
192    terrainUpper[HERO_HORIZONTAL_POSITION] = upper;
193    collide = (upperSave == SPRITE_TERRAIN_EMPTY) ? false : true;
194  }
195  if  (lower != ' ') {
196    terrainLower[HERO_HORIZONTAL_POSITION] = lower;
197    collide  |= (lowerSave == SPRITE_TERRAIN_EMPTY) ? false : true;
198  }
199  
200  byte digits  = (score > 9999) ? 5 : (score > 999) ? 4 : (score > 99) ? 3 : (score > 9) ? 2 :  1;
201  
202  // Draw the scene
203  terrainUpper[TERRAIN_WIDTH] = '\\0';
204  terrainLower[TERRAIN_WIDTH]  = '\\0';
205  char temp = terrainUpper[16-digits];
206  terrainUpper[16-digits]  = '\\0';
207  lcd.setCursor(0,0);
208  lcd.print(terrainUpper);
209  terrainUpper[16-digits]  = temp;  
210  lcd.setCursor(0,1);
211  lcd.print(terrainLower);
212  
213  lcd.setCursor(16  - digits,0);
214  lcd.print(score);
215
216  terrainUpper[HERO_HORIZONTAL_POSITION]  = upperSave;
217  terrainLower[HERO_HORIZONTAL_POSITION] = lowerSave;
218  return  collide;
219}
220
221// Handle the button push as an interrupt
222void buttonPush()  {
223  buttonPushed = true;
224}
225
226void setup(){
227  pinMode(PIN_READWRITE,  OUTPUT);
228  digitalWrite(PIN_READWRITE, LOW);
229  pinMode(PIN_CONTRAST, OUTPUT);
230  digitalWrite(PIN_CONTRAST, LOW);
231  pinMode(PIN_BUTTON, INPUT);
232  digitalWrite(PIN_BUTTON,  HIGH);
233  pinMode(PIN_AUTOPLAY, OUTPUT);
234  digitalWrite(PIN_AUTOPLAY, HIGH);
235  pinMode(PIN_BUZZER,OUTPUT);//initialize the buzzer pin as an output
236  digitalWrite(PIN_BUZZER,  LOW);
237  
238  // Digital pin 2 maps to interrupt 0
239  attachInterrupt(0/*PIN_BUTTON*/,  buttonPush, FALLING);
240  
241  initializeGraphics();
242  
243  lcd.begin(16,  2);
244}
245
246void loop(){
247  static byte heroPos = HERO_POSITION_RUN_LOWER_1;
248  static byte newTerrainType = TERRAIN_EMPTY;
249  static byte newTerrainDuration  = 1;
250  static bool playing = false;
251  static bool blink = false;
252  static  unsigned int distance = 0;
253  
254  if (!playing) {
255    drawHero((blink) ?  HERO_POSITION_OFF : heroPos, terrainUpper, terrainLower, distance >> 3);
256    if  (blink) {
257      lcd.setCursor(0,0);
258      lcd.print("Press Start");
259    }
260    delay(250);
261    blink = !blink;
262    if (buttonPushed) {
263       
264    
265     
266      initializeGraphics();
267      heroPos = HERO_POSITION_RUN_LOWER_1;
268      playing = true;
269      buttonPushed = false;
270      distance = 0;
271    }
272    return;
273  }
274
275  // Shift the terrain to the left
276  advanceTerrain(terrainLower,  newTerrainType == TERRAIN_LOWER_BLOCK ? SPRITE_TERRAIN_SOLID : SPRITE_TERRAIN_EMPTY);
277  advanceTerrain(terrainUpper, newTerrainType == TERRAIN_UPPER_BLOCK ? SPRITE_TERRAIN_SOLID  : SPRITE_TERRAIN_EMPTY);
278  
279  // Make new terrain to enter on the right
280  if (--newTerrainDuration == 0) {
281    if (newTerrainType == TERRAIN_EMPTY) {
282      newTerrainType = (random(3) == 0) ? TERRAIN_UPPER_BLOCK : TERRAIN_LOWER_BLOCK;
283      newTerrainDuration = 2 + random(10);
284    } else {
285      newTerrainType  = TERRAIN_EMPTY;
286      newTerrainDuration = 10 + random(10);
287    }
288  }
289    
290  if (buttonPushed) {
291    if (heroPos <= HERO_POSITION_RUN_LOWER_2) heroPos  = HERO_POSITION_JUMP_1;
292    buttonPushed = false;
293    digitalWrite(PIN_BUZZER,HIGH);  
294  }  
295
296  if (drawHero(heroPos, terrainUpper, terrainLower, distance >>  3)) {
297    playing = false; // The hero collided with something. Too bad.
298    for (int i = 0; i <= 2; i++) {
299      digitalWrite(PIN_BUZZER, HIGH);
300      delay(100);
301      digitalWrite(PIN_BUZZER, LOW);
302      delay(100);
303    }
304  } else {
305    if (heroPos == HERO_POSITION_RUN_LOWER_2 || heroPos ==  HERO_POSITION_JUMP_8) {
306      heroPos = HERO_POSITION_RUN_LOWER_1;
307    } else  if ((heroPos >= HERO_POSITION_JUMP_3 && heroPos <= HERO_POSITION_JUMP_5) && terrainLower[HERO_HORIZONTAL_POSITION]  != SPRITE_TERRAIN_EMPTY) {
308      heroPos = HERO_POSITION_RUN_UPPER_1;
309    }  else if (heroPos >= HERO_POSITION_RUN_UPPER_1 && terrainLower[HERO_HORIZONTAL_POSITION]  == SPRITE_TERRAIN_EMPTY) {
310      heroPos = HERO_POSITION_JUMP_5;
311    } else  if (heroPos == HERO_POSITION_RUN_UPPER_2) {
312      heroPos = HERO_POSITION_RUN_UPPER_1;
313    } else {
314      ++heroPos;
315    }
316    ++distance;
317    
318    digitalWrite(PIN_AUTOPLAY,  terrainLower[HERO_HORIZONTAL_POSITION + 2] == SPRITE_TERRAIN_EMPTY ? HIGH : LOW);
319  }
320  delay(100);
321  digitalWrite(PIN_BUZZER,LOW);
322}

1#include <LiquidCrystal.h>
2
3#define PIN_BUTTON 2
4#define PIN_AUTOPLAY
5  1
6#define PIN_BUZZER 8
7#define PIN_READWRITE 10
8#define PIN_CONTRAST 12
9
10#define
11  SPRITE_RUN1 1
12#define SPRITE_RUN2 2
13#define SPRITE_JUMP 3
14#define SPRITE_JUMP_UPPER
15  '.'         // Use the '.' character for the head
16#define SPRITE_JUMP_LOWER 4
17#define
18  SPRITE_TERRAIN_EMPTY ' '      // User the ' ' character
19#define SPRITE_TERRAIN_SOLID
20  5
21#define SPRITE_TERRAIN_SOLID_RIGHT 6
22#define SPRITE_TERRAIN_SOLID_LEFT 7
23
24#define
25  HERO_HORIZONTAL_POSITION 1    // Horizontal position of hero on screen
26
27#define
28  TERRAIN_WIDTH 16
29#define TERRAIN_EMPTY 0
30#define TERRAIN_LOWER_BLOCK 1
31#define
32  TERRAIN_UPPER_BLOCK 2
33
34#define HERO_POSITION_OFF 0          // Hero is invisible
35#define
36  HERO_POSITION_RUN_LOWER_1 1  // Hero is running on lower row (pose 1)
37#define
38  HERO_POSITION_RUN_LOWER_2 2  //                              (pose 2)
39
40#define
41  HERO_POSITION_JUMP_1 3       // Starting a jump
42#define HERO_POSITION_JUMP_2
43  4       // Half-way up
44#define HERO_POSITION_JUMP_3 5       // Jump is on upper
45  row
46#define HERO_POSITION_JUMP_4 6       // Jump is on upper row
47#define HERO_POSITION_JUMP_5
48  7       // Jump is on upper row
49#define HERO_POSITION_JUMP_6 8       // Jump
50  is on upper row
51#define HERO_POSITION_JUMP_7 9       // Half-way down
52#define
53  HERO_POSITION_JUMP_8 10      // About to land
54
55#define HERO_POSITION_RUN_UPPER_1
56  11 // Hero is running on upper row (pose 1)
57#define HERO_POSITION_RUN_UPPER_2
58  12 //                              (pose 2)
59
60LiquidCrystal lcd(11, 9, 6, 5,
61  4, 3);
62static char terrainUpper[TERRAIN_WIDTH + 1];
63static char terrainLower[TERRAIN_WIDTH
64  + 1];
65static bool buttonPushed = false;
66
67void initializeGraphics(){
68
69  static byte graphics[] = {
70    // Run position 1
71    B01100,
72    B01100,
73
74    B00000,
75    B01110,
76    B11100,
77    B01100,
78    B11010,
79    B10011,
80
81    // Run position 2
82    B01100,
83    B01100,
84    B00000,
85    B01100,
86
87    B01100,
88    B01100,
89    B01100,
90    B01110,
91    // Jump
92    B01100,
93
94    B01100,
95    B00000,
96    B11110,
97    B01101,
98    B11111,
99    B10000,
100
101    B00000,
102    // Jump lower
103    B11110,
104    B01101,
105    B11111,
106
107    B10000,
108    B00000,
109    B00000,
110    B00000,
111    B00000,
112    //
113  Ground
114    B11111,
115    B11111,
116    B11111,
117    B11111,
118    B11111,
119
120    B11111,
121    B11111,
122    B11111,
123    // Ground right
124    B00011,
125
126    B00011,
127    B00011,
128    B00011,
129    B00011,
130    B00011,
131    B00011,
132
133    B00011,
134    // Ground left
135    B11000,
136    B11000,
137    B11000,
138
139    B11000,
140    B11000,
141    B11000,
142    B11000,
143    B11000,
144  };
145
146  int i;
147  // Skip using character 0, this allows lcd.print() to be used to
148
149  // quickly draw multiple characters
150  for (i = 0; i < 7; ++i) {
151	  lcd.createChar(i
152  + 1, &graphics[i * 8]);
153  }
154  for (i = 0; i < TERRAIN_WIDTH; ++i) {
155    terrainUpper[i]
156  = SPRITE_TERRAIN_EMPTY;
157    terrainLower[i] = SPRITE_TERRAIN_EMPTY;
158  }
159}
160
161//
162  Slide the terrain to the left in half-character increments
163//
164void advanceTerrain(char*
165  terrain, byte newTerrain){
166  for (int i = 0; i < TERRAIN_WIDTH; ++i) {
167    char
168  current = terrain[i];
169    char next = (i == TERRAIN_WIDTH-1) ? newTerrain : terrain[i+1];
170
171    switch (current){
172      case SPRITE_TERRAIN_EMPTY:
173        terrain[i]
174  = (next == SPRITE_TERRAIN_SOLID) ? SPRITE_TERRAIN_SOLID_RIGHT : SPRITE_TERRAIN_EMPTY;
175
176        break;
177      case SPRITE_TERRAIN_SOLID:
178        terrain[i] = (next
179  == SPRITE_TERRAIN_EMPTY) ? SPRITE_TERRAIN_SOLID_LEFT : SPRITE_TERRAIN_SOLID;
180
181        break;
182      case SPRITE_TERRAIN_SOLID_RIGHT:
183        terrain[i] =
184  SPRITE_TERRAIN_SOLID;
185        break;
186      case SPRITE_TERRAIN_SOLID_LEFT:
187
188        terrain[i] = SPRITE_TERRAIN_EMPTY;
189        break;
190    }
191  }
192}
193
194bool
195  drawHero(byte position, char* terrainUpper, char* terrainLower, unsigned int score)
196  {
197  bool collide = false;
198  char upperSave = terrainUpper[HERO_HORIZONTAL_POSITION];
199
200  char lowerSave = terrainLower[HERO_HORIZONTAL_POSITION];
201  byte upper, lower;
202
203  switch (position) {
204    case HERO_POSITION_OFF:
205      upper = lower = SPRITE_TERRAIN_EMPTY;
206
207      break;
208    case HERO_POSITION_RUN_LOWER_1:
209      upper = SPRITE_TERRAIN_EMPTY;
210
211      lower = SPRITE_RUN1;
212      break;
213    case HERO_POSITION_RUN_LOWER_2:
214
215      upper = SPRITE_TERRAIN_EMPTY;
216      lower = SPRITE_RUN2;
217      break;
218
219    case HERO_POSITION_JUMP_1:
220    case HERO_POSITION_JUMP_8:
221      upper
222  = SPRITE_TERRAIN_EMPTY;
223      lower = SPRITE_JUMP;
224      break;
225    case
226  HERO_POSITION_JUMP_2:
227    case HERO_POSITION_JUMP_7:
228      upper = SPRITE_JUMP_UPPER;
229
230      lower = SPRITE_JUMP_LOWER;
231      break;
232    case HERO_POSITION_JUMP_3:
233
234    case HERO_POSITION_JUMP_4:
235    case HERO_POSITION_JUMP_5:
236    case HERO_POSITION_JUMP_6:
237
238      upper = SPRITE_JUMP;
239      lower = SPRITE_TERRAIN_EMPTY;
240      break;
241
242    case HERO_POSITION_RUN_UPPER_1:
243      upper = SPRITE_RUN1;
244      lower
245  = SPRITE_TERRAIN_EMPTY;
246      break;
247    case HERO_POSITION_RUN_UPPER_2:
248
249      upper = SPRITE_RUN2;
250      lower = SPRITE_TERRAIN_EMPTY;
251      break;
252
253  }
254  if (upper != ' ') {
255    terrainUpper[HERO_HORIZONTAL_POSITION] = upper;
256
257    collide = (upperSave == SPRITE_TERRAIN_EMPTY) ? false : true;
258  }
259  if
260  (lower != ' ') {
261    terrainLower[HERO_HORIZONTAL_POSITION] = lower;
262    collide
263  |= (lowerSave == SPRITE_TERRAIN_EMPTY) ? false : true;
264  }
265  
266  byte digits
267  = (score > 9999) ? 5 : (score > 999) ? 4 : (score > 99) ? 3 : (score > 9) ? 2 :
268  1;
269  
270  // Draw the scene
271  terrainUpper[TERRAIN_WIDTH] = '\\0';
272  terrainLower[TERRAIN_WIDTH]
273  = '\\0';
274  char temp = terrainUpper[16-digits];
275  terrainUpper[16-digits]
276  = '\\0';
277  lcd.setCursor(0,0);
278  lcd.print(terrainUpper);
279  terrainUpper[16-digits]
280  = temp;  
281  lcd.setCursor(0,1);
282  lcd.print(terrainLower);
283  
284  lcd.setCursor(16
285  - digits,0);
286  lcd.print(score);
287
288  terrainUpper[HERO_HORIZONTAL_POSITION]
289  = upperSave;
290  terrainLower[HERO_HORIZONTAL_POSITION] = lowerSave;
291  return
292  collide;
293}
294
295// Handle the button push as an interrupt
296void buttonPush()
297  {
298  buttonPushed = true;
299}
300
301void setup(){
302  pinMode(PIN_READWRITE,
303  OUTPUT);
304  digitalWrite(PIN_READWRITE, LOW);
305  pinMode(PIN_CONTRAST, OUTPUT);
306
307  digitalWrite(PIN_CONTRAST, LOW);
308  pinMode(PIN_BUTTON, INPUT);
309  digitalWrite(PIN_BUTTON,
310  HIGH);
311  pinMode(PIN_AUTOPLAY, OUTPUT);
312  digitalWrite(PIN_AUTOPLAY, HIGH);
313
314  pinMode(PIN_BUZZER,OUTPUT);//initialize the buzzer pin as an output
315  digitalWrite(PIN_BUZZER,
316  LOW);
317  
318  // Digital pin 2 maps to interrupt 0
319  attachInterrupt(0/*PIN_BUTTON*/,
320  buttonPush, FALLING);
321  
322  initializeGraphics();
323  
324  lcd.begin(16,
325  2);
326}
327
328void loop(){
329  static byte heroPos = HERO_POSITION_RUN_LOWER_1;
330
331  static byte newTerrainType = TERRAIN_EMPTY;
332  static byte newTerrainDuration
333  = 1;
334  static bool playing = false;
335  static bool blink = false;
336  static
337  unsigned int distance = 0;
338  
339  if (!playing) {
340    drawHero((blink) ?
341  HERO_POSITION_OFF : heroPos, terrainUpper, terrainLower, distance >> 3);
342    if
343  (blink) {
344      lcd.setCursor(0,0);
345      lcd.print("Press Start");
346
347    }
348    delay(250);
349    blink = !blink;
350    if (buttonPushed) {
351       
352
353    
354     
355      initializeGraphics();
356      heroPos = HERO_POSITION_RUN_LOWER_1;
357
358      playing = true;
359      buttonPushed = false;
360      distance = 0;
361
362    }
363    return;
364  }
365
366  // Shift the terrain to the left
367  advanceTerrain(terrainLower,
368  newTerrainType == TERRAIN_LOWER_BLOCK ? SPRITE_TERRAIN_SOLID : SPRITE_TERRAIN_EMPTY);
369
370  advanceTerrain(terrainUpper, newTerrainType == TERRAIN_UPPER_BLOCK ? SPRITE_TERRAIN_SOLID
371  : SPRITE_TERRAIN_EMPTY);
372  
373  // Make new terrain to enter on the right
374
375  if (--newTerrainDuration == 0) {
376    if (newTerrainType == TERRAIN_EMPTY) {
377
378      newTerrainType = (random(3) == 0) ? TERRAIN_UPPER_BLOCK : TERRAIN_LOWER_BLOCK;
379
380      newTerrainDuration = 2 + random(10);
381    } else {
382      newTerrainType
383  = TERRAIN_EMPTY;
384      newTerrainDuration = 10 + random(10);
385    }
386  }
387
388    
389  if (buttonPushed) {
390    if (heroPos <= HERO_POSITION_RUN_LOWER_2) heroPos
391  = HERO_POSITION_JUMP_1;
392    buttonPushed = false;
393    digitalWrite(PIN_BUZZER,HIGH);
394  
395  }  
396
397  if (drawHero(heroPos, terrainUpper, terrainLower, distance >>
398  3)) {
399    playing = false; // The hero collided with something. Too bad.
400
401    for (int i = 0; i <= 2; i++) {
402      digitalWrite(PIN_BUZZER, HIGH);
403
404      delay(100);
405      digitalWrite(PIN_BUZZER, LOW);
406      delay(100);
407
408    }
409  } else {
410    if (heroPos == HERO_POSITION_RUN_LOWER_2 || heroPos ==
411  HERO_POSITION_JUMP_8) {
412      heroPos = HERO_POSITION_RUN_LOWER_1;
413    } else
414  if ((heroPos >= HERO_POSITION_JUMP_3 && heroPos <= HERO_POSITION_JUMP_5) && terrainLower[HERO_HORIZONTAL_POSITION]
415  != SPRITE_TERRAIN_EMPTY) {
416      heroPos = HERO_POSITION_RUN_UPPER_1;
417    }
418  else if (heroPos >= HERO_POSITION_RUN_UPPER_1 && terrainLower[HERO_HORIZONTAL_POSITION]
419  == SPRITE_TERRAIN_EMPTY) {
420      heroPos = HERO_POSITION_JUMP_5;
421    } else
422  if (heroPos == HERO_POSITION_RUN_UPPER_2) {
423      heroPos = HERO_POSITION_RUN_UPPER_1;
424
425    } else {
426      ++heroPos;
427    }
428    ++distance;
429    
430    digitalWrite(PIN_AUTOPLAY,
431  terrainLower[HERO_HORIZONTAL_POSITION + 2] == SPRITE_TERRAIN_EMPTY ? HIGH : LOW);
432
433  }
434  delay(100);
435  digitalWrite(PIN_BUZZER,LOW);
436}