LCD Game

A game for an LCD display.

Mar 6, 2019

•

1250 views

•

0 respects

games

Components and supplies

Standard LCD - 16x2 White on Blue

Pushbutton switch 12mm

Arduino UNO

Project description

Code

Code for game

c_cpp

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(100);
308}

#include <LiquidCrystal.h>

#define PIN_BUTTON 2
#define PIN_AUTOPLAY  1
#define PIN_READWRITE 10
#define PIN_CONTRAST 12

#define SPRITE_RUN1  1
#define SPRITE_RUN2 2
#define SPRITE_JUMP 3
#define SPRITE_JUMP_UPPER  '.'         // Use the '.' character for the head
#define SPRITE_JUMP_LOWER 4
#define  SPRITE_TERRAIN_EMPTY ' '      // User the ' ' character
#define SPRITE_TERRAIN_SOLID  5
#define SPRITE_TERRAIN_SOLID_RIGHT 6
#define SPRITE_TERRAIN_SOLID_LEFT 7

#define  HERO_HORIZONTAL_POSITION 1    // Horizontal position of hero on screen

#define  TERRAIN_WIDTH 16
#define TERRAIN_EMPTY 0
#define TERRAIN_LOWER_BLOCK 1
#define  TERRAIN_UPPER_BLOCK 2

#define HERO_POSITION_OFF 0          // Hero is invisible
#define  HERO_POSITION_RUN_LOWER_1 1  // Hero is running on lower row (pose 1)
#define  HERO_POSITION_RUN_LOWER_2 2  //                              (pose 2)

#define  HERO_POSITION_JUMP_1 3       // Starting a jump
#define HERO_POSITION_JUMP_2  4       // Half-way up
#define HERO_POSITION_JUMP_3 5       // Jump is on upper  row
#define HERO_POSITION_JUMP_4 6       // Jump is on upper row
#define HERO_POSITION_JUMP_5  7       // Jump is on upper row
#define HERO_POSITION_JUMP_6 8       // Jump  is on upper row
#define HERO_POSITION_JUMP_7 9       // Half-way down
#define  HERO_POSITION_JUMP_8 10      // About to land

#define HERO_POSITION_RUN_UPPER_1  11 // Hero is running on upper row (pose 1)
#define HERO_POSITION_RUN_UPPER_2  12 //                              (pose 2)

LiquidCrystal lcd(11, 9, 6, 5,  4, 3);
static char terrainUpper[TERRAIN_WIDTH + 1];
static char terrainLower[TERRAIN_WIDTH  + 1];
static bool buttonPushed = false;

void initializeGraphics(){
  static byte graphics[] = {
    // Run position 1
    B01100,
    B01100,
    B00000,
    B01110,
    B11100,
    B01100,
    B11010,
    B10011,
    // Run position 2
    B01100,
    B01100,
    B00000,
    B01100,
    B01100,
    B01100,
    B01100,
    B01110,
    // Jump
    B01100,
    B01100,
    B00000,
    B11110,
    B01101,
    B11111,
    B10000,
    B00000,
    // Jump lower
    B11110,
    B01101,
    B11111,
    B10000,
    B00000,
    B00000,
    B00000,
    B00000,
    //  Ground
    B11111,
    B11111,
    B11111,
    B11111,
    B11111,
    B11111,
    B11111,
    B11111,
    // Ground right
    B00011,
    B00011,
    B00011,
    B00011,
    B00011,
    B00011,
    B00011,
    B00011,
    // Ground left
    B11000,
    B11000,
    B11000,
    B11000,
    B11000,
    B11000,
    B11000,
    B11000,
  };
  int i;
  // Skip using character 0, this allows lcd.print() to be used to
  // quickly draw multiple characters
  for (i = 0; i < 7; ++i) {
	  lcd.createChar(i  + 1, &graphics[i * 8]);
  }
  for (i = 0; i < TERRAIN_WIDTH; ++i) {
    terrainUpper[i]  = SPRITE_TERRAIN_EMPTY;
    terrainLower[i] = SPRITE_TERRAIN_EMPTY;
  }
}

//  Slide the terrain to the left in half-character increments
//
void advanceTerrain(char*  terrain, byte newTerrain){
  for (int i = 0; i < TERRAIN_WIDTH; ++i) {
    char  current = terrain[i];
    char next = (i == TERRAIN_WIDTH-1) ? newTerrain : terrain[i+1];
    switch (current){
      case SPRITE_TERRAIN_EMPTY:
        terrain[i]  = (next == SPRITE_TERRAIN_SOLID) ? SPRITE_TERRAIN_SOLID_RIGHT : SPRITE_TERRAIN_EMPTY;
        break;
      case SPRITE_TERRAIN_SOLID:
        terrain[i] = (next  == SPRITE_TERRAIN_EMPTY) ? SPRITE_TERRAIN_SOLID_LEFT : SPRITE_TERRAIN_SOLID;
        break;
      case SPRITE_TERRAIN_SOLID_RIGHT:
        terrain[i] =  SPRITE_TERRAIN_SOLID;
        break;
      case SPRITE_TERRAIN_SOLID_LEFT:
        terrain[i] = SPRITE_TERRAIN_EMPTY;
        break;
    }
  }
}

bool  drawHero(byte position, char* terrainUpper, char* terrainLower, unsigned int score)  {
  bool collide = false;
  char upperSave = terrainUpper[HERO_HORIZONTAL_POSITION];
  char lowerSave = terrainLower[HERO_HORIZONTAL_POSITION];
  byte upper, lower;
  switch (position) {
    case HERO_POSITION_OFF:
      upper = lower = SPRITE_TERRAIN_EMPTY;
      break;
    case HERO_POSITION_RUN_LOWER_1:
      upper = SPRITE_TERRAIN_EMPTY;
      lower = SPRITE_RUN1;
      break;
    case HERO_POSITION_RUN_LOWER_2:
      upper = SPRITE_TERRAIN_EMPTY;
      lower = SPRITE_RUN2;
      break;
    case HERO_POSITION_JUMP_1:
    case HERO_POSITION_JUMP_8:
      upper  = SPRITE_TERRAIN_EMPTY;
      lower = SPRITE_JUMP;
      break;
    case  HERO_POSITION_JUMP_2:
    case HERO_POSITION_JUMP_7:
      upper = SPRITE_JUMP_UPPER;
      lower = SPRITE_JUMP_LOWER;
      break;
    case HERO_POSITION_JUMP_3:
    case HERO_POSITION_JUMP_4:
    case HERO_POSITION_JUMP_5:
    case HERO_POSITION_JUMP_6:
      upper = SPRITE_JUMP;
      lower = SPRITE_TERRAIN_EMPTY;
      break;
    case HERO_POSITION_RUN_UPPER_1:
      upper = SPRITE_RUN1;
      lower  = SPRITE_TERRAIN_EMPTY;
      break;
    case HERO_POSITION_RUN_UPPER_2:
      upper = SPRITE_RUN2;
      lower = SPRITE_TERRAIN_EMPTY;
      break;
  }
  if (upper != ' ') {
    terrainUpper[HERO_HORIZONTAL_POSITION] = upper;
    collide = (upperSave == SPRITE_TERRAIN_EMPTY) ? false : true;
  }
  if  (lower != ' ') {
    terrainLower[HERO_HORIZONTAL_POSITION] = lower;
    collide  |= (lowerSave == SPRITE_TERRAIN_EMPTY) ? false : true;
  }
  
  byte digits  = (score > 9999) ? 5 : (score > 999) ? 4 : (score > 99) ? 3 : (score > 9) ? 2 :  1;
  
  // Draw the scene
  terrainUpper[TERRAIN_WIDTH] = '\\0';
  terrainLower[TERRAIN_WIDTH]  = '\\0';
  char temp = terrainUpper[16-digits];
  terrainUpper[16-digits]  = '\\0';
  lcd.setCursor(0,0);
  lcd.print(terrainUpper);
  terrainUpper[16-digits]  = temp;  
  lcd.setCursor(0,1);
  lcd.print(terrainLower);
  
  lcd.setCursor(16  - digits,0);
  lcd.print(score);

  terrainUpper[HERO_HORIZONTAL_POSITION]  = upperSave;
  terrainLower[HERO_HORIZONTAL_POSITION] = lowerSave;
  return  collide;
}

// Handle the button push as an interrupt
void buttonPush()  {
  buttonPushed = true;
}

void setup(){
  pinMode(PIN_READWRITE,  OUTPUT);
  digitalWrite(PIN_READWRITE, LOW);
  pinMode(PIN_CONTRAST, OUTPUT);
  digitalWrite(PIN_CONTRAST, LOW);
  pinMode(PIN_BUTTON, INPUT);
  digitalWrite(PIN_BUTTON,  HIGH);
  pinMode(PIN_AUTOPLAY, OUTPUT);
  digitalWrite(PIN_AUTOPLAY, HIGH);
  
  // Digital pin 2 maps to interrupt 0
  attachInterrupt(0/*PIN_BUTTON*/,  buttonPush, FALLING);
  
  initializeGraphics();
  
  lcd.begin(16,  2);
}

void loop(){
  static byte heroPos = HERO_POSITION_RUN_LOWER_1;
  static byte newTerrainType = TERRAIN_EMPTY;
  static byte newTerrainDuration  = 1;
  static bool playing = false;
  static bool blink = false;
  static  unsigned int distance = 0;
  
  if (!playing) {
    drawHero((blink) ?  HERO_POSITION_OFF : heroPos, terrainUpper, terrainLower, distance >> 3);
    if  (blink) {
      lcd.setCursor(0,0);
      lcd.print("Press Start");
    }
    delay(250);
    blink = !blink;
    if (buttonPushed) {
      initializeGraphics();
      heroPos = HERO_POSITION_RUN_LOWER_1;
      playing = true;
      buttonPushed  = false;
      distance = 0;
    }
    return;
  }

  // Shift  the terrain to the left
  advanceTerrain(terrainLower, newTerrainType == TERRAIN_LOWER_BLOCK  ? SPRITE_TERRAIN_SOLID : SPRITE_TERRAIN_EMPTY);
  advanceTerrain(terrainUpper,  newTerrainType == TERRAIN_UPPER_BLOCK ? SPRITE_TERRAIN_SOLID : SPRITE_TERRAIN_EMPTY);
  
  // Make new terrain to enter on the right
  if (--newTerrainDuration  == 0) {
    if (newTerrainType == TERRAIN_EMPTY) {
      newTerrainType =  (random(3) == 0) ? TERRAIN_UPPER_BLOCK : TERRAIN_LOWER_BLOCK;
      newTerrainDuration  = 2 + random(10);
    } else {
      newTerrainType = TERRAIN_EMPTY;
      newTerrainDuration  = 10 + random(10);
    }
  }
    
  if (buttonPushed) {
    if (heroPos  <= HERO_POSITION_RUN_LOWER_2) heroPos = HERO_POSITION_JUMP_1;
    buttonPushed  = false;
  }  

  if (drawHero(heroPos, terrainUpper, terrainLower, distance  >> 3)) {
    playing = false; // The hero collided with something. Too bad.
  } else {
    if (heroPos == HERO_POSITION_RUN_LOWER_2 || heroPos == HERO_POSITION_JUMP_8)  {
      heroPos = HERO_POSITION_RUN_LOWER_1;
    } else if ((heroPos >= HERO_POSITION_JUMP_3  && heroPos <= HERO_POSITION_JUMP_5) && terrainLower[HERO_HORIZONTAL_POSITION] !=  SPRITE_TERRAIN_EMPTY) {
      heroPos = HERO_POSITION_RUN_UPPER_1;
    } else  if (heroPos >= HERO_POSITION_RUN_UPPER_1 && terrainLower[HERO_HORIZONTAL_POSITION]  == SPRITE_TERRAIN_EMPTY) {
      heroPos = HERO_POSITION_JUMP_5;
    } else  if (heroPos == HERO_POSITION_RUN_UPPER_2) {
      heroPos = HERO_POSITION_RUN_UPPER_1;
    } else {
      ++heroPos;
    }
    ++distance;
    
    digitalWrite(PIN_AUTOPLAY,  terrainLower[HERO_HORIZONTAL_POSITION + 2] == SPRITE_TERRAIN_EMPTY ? HIGH : LOW);
  }
  delay(100);
}

Downloadable files

LCD display game

Comments

Only logged in users can leave comments

Tsimm

0 Followers

•

0 Projects

Intro