A Simple Simon Says Game

1/*This sketch is a simple version of the famous Simon Says game. You can  use it and improved it adding
2levels and everything you want to increase the  diffuculty!
3
4There are five buttons connected to A0, A1, A2, A3 and A4.
5The  buttons from A0 to A3 are used to insert the right sequence while A4 to start the  game.
6
7When a wrong sequence is inserted all the leds will blink for three  time very fast otherwhise the
8inserted sequence is correct.
9
10Hardware needed:
115x  pushbuttons
121x Blue led
131x Yellow led
141x Red led
151x Green Led
164x  1k resistors
174x 10k resisors
1810x jumpers
19*/
20
21const int MAX_LEVEL  = 100;
22int sequence[MAX_LEVEL];
23int your_sequence[MAX_LEVEL];
24int level  = 1;
25
26int velocity = 1000;
27
28void setup() {
29pinMode(A0, INPUT);
30pinMode(A1,  INPUT);
31pinMode(A2, INPUT);
32pinMode(A3, INPUT);
33
34pinMode(2, OUTPUT);
35pinMode(3,  OUTPUT);
36pinMode(4, OUTPUT);
37pinMode(5, OUTPUT);
38
39digitalWrite(2, LOW);
40digitalWrite(3,  LOW);
41digitalWrite(4, LOW);
42digitalWrite(5, LOW);
43}
44
45void loop()
46{
47if  (level == 1)
48generate_sequence();//generate a sequence;
49
50if (digitalRead(A4)  == LOW || level != 1) //If start button is pressed or you're winning
51{
52show_sequence();    //show the sequence
53get_sequence();     //wait for your sequence
54}
55}
56
57void  show_sequence()
58{
59digitalWrite(2, LOW);
60digitalWrite(3, LOW);
61digitalWrite(4,  LOW);
62digitalWrite(5, LOW);
63
64for (int i = 0; i < level; i++)
65{
66digitalWrite(sequence[i],  HIGH);
67delay(velocity);
68digitalWrite(sequence[i], LOW);
69delay(200);
70}
71}
72
73void  get_sequence()
74{
75int flag = 0; //this flag indicates if the sequence is correct
76
77for  (int i = 0; i < level; i++)
78{
79flag = 0;
80while(flag == 0)
81{
82if (digitalRead(A0)  == LOW)
83{
84digitalWrite(5, HIGH);
85your_sequence[i] = 5;
86flag = 1;
87delay(200);
88if  (your_sequence[i] != sequence[i])
89{
90wrong_sequence();
91return;
92}
93digitalWrite(5,  LOW);
94}
95
96if (digitalRead(A1) == LOW)
97{
98digitalWrite(4, HIGH);
99your_sequence[i]  = 4;
100flag = 1;
101delay(200);
102if (your_sequence[i] != sequence[i])
103{
104wrong_sequence();
105return;
106}
107digitalWrite(4,  LOW);
108}
109
110if (digitalRead(A2) == LOW)
111{
112digitalWrite(3, HIGH);
113your_sequence[i]  = 3;
114flag = 1;
115delay(200);
116if (your_sequence[i] != sequence[i])
117{
118wrong_sequence();
119return;
120}
121digitalWrite(3,  LOW);
122}
123
124if (digitalRead(A3) == LOW)
125{
126digitalWrite(2, HIGH);
127your_sequence[i]  = 2;
128flag = 1;
129delay(200);
130if (your_sequence[i] != sequence[i])
131{
132wrong_sequence();
133return;
134}
135digitalWrite(2,  LOW);
136}
137
138}
139}
140right_sequence();
141}
142
143void generate_sequence()
144{
145randomSeed(millis());  //in this way is really random!!!
146
147for (int i = 0; i < MAX_LEVEL; i++)
148{
149sequence[i]  = random(2,6);
150}
151}
152void wrong_sequence()
153{
154for (int i = 0; i < 3;  i++)
155{
156digitalWrite(2, HIGH);
157digitalWrite(3, HIGH);
158digitalWrite(4,  HIGH);
159digitalWrite(5, HIGH);
160delay(250);
161digitalWrite(2, LOW);
162digitalWrite(3,  LOW);
163digitalWrite(4, LOW);
164digitalWrite(5, LOW);
165delay(250);
166}
167level  = 1;
168velocity = 1000;
169}
170
171void right_sequence()
172{
173digitalWrite(2,  LOW);
174digitalWrite(3, LOW);
175digitalWrite(4, LOW);
176digitalWrite(5, LOW);
177delay(250);
178
179digitalWrite(2,  HIGH);
180digitalWrite(3, HIGH);
181digitalWrite(4, HIGH);
182digitalWrite(5, HIGH);
183delay(500);
184digitalWrite(2,  LOW);
185digitalWrite(3, LOW);
186digitalWrite(4, LOW);
187digitalWrite(5, LOW);
188delay(500);
189
190if  (level < MAX_LEVEL);
191level++;
192
193velocity -= 50; //increase difficulty
194}