1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
function play_game()
{
var level = 160; // Game level, by decreasing will speed up
var rect_w = 45; // Width
var rect_h = 30; // Height
var inc_score = 50; // Score
var snake_color = "#006699"; // Snake Color
var ctx; // Canvas attributes
var tn = []; // temp directions storage
var x_dir = [-1, 0, 1, 0]; // position adjusments
var y_dir = [0, -1, 0, 1]; // position adjusments
var queue = [];
var frog = 1; // defalut food
var map = [];
var MR = Math.random;
var X = 5 + (MR() * (rect_w - 10))|0; // Calculate positions
var Y = 5 + (MR() * (rect_h - 10))|0; // Calculate positions
var direction = MR() * 3 | 0;
var interval = 0;
var score = 0;
var sum = 0, easy = 0;
var i, dir;
var cylindre = new Image();
cylindre.src = 'cylindre.png'; // destination de l'image serpent
var clover = new Image(); // nouvelle image clover
clover.src = 'clover.gif'; // destination de l'image clover
// getting play area
var c = document.getElementById('playArea');
ctx = c.getContext('2d');
// Map positions
for (i = 0; i < rect_w; i++)
{
map[i] = [];
}
rand_frog();
// random placement of snake food
function rand_frog()
{
var x, y;
do
{
x = MR() * rect_w|0;
y = MR() * rect_h|0;
}
while (map[x][y]);
map[x][y] = 1;
ctx.fillStyle = snake_color;
ctx.drawImage(clover, x * 10+1, y * 10+1, 13 , 13); // snake food ou les param�tres repr�sente, l'image d�clar�e plus haut dans la variable, le postionnement al�atoire, ainsi que la taille de cette derni�re
document.getElementById("msg").innerHTML = "<p>Your Score : "+score+" </p>"; // affichage des scores en direct
change_background();
}
// Default somewhere placement
function set_game_speed()
{
if (easy)
{
X = (X+rect_w)%rect_w;
Y = (Y+rect_h)%rect_h;
}
--inc_score;
if (tn.length)
{
dir = tn.pop();
if ((dir % 2) !== (direction % 2))
{
direction = dir;
}
}
if ((easy || (0 <= X && 0 <= Y && X < rect_w && Y < rect_h)) && 2 !== map[X][Y])
{
if (1 === map[X][Y])
{
score+= Math.max(5, inc_score);
inc_score = 50;
rand_frog(); //placement al�atoire de la nourriture
frog++; //ajout de nourriture
sound('crunch.mp3'); // son quand la nourriture est mang�e
//interval = window.setInterval(set_game_speed, level +=10);
//document.getElementById('debug').innerHTML='variable vitesse:'+level+'test';
}
//ctx.fillStyle("#ffffff");
ctx.drawImage(cylindre, X * 10, Y * 10, 13 , 13); // dessin serpent image ok
map[X][Y] = 2;
queue.unshift([X, Y]);
X+= x_dir[direction];
Y+= y_dir[direction];
if (frog < queue.length)
{
dir = queue.pop()
map[dir[0]][dir[1]] = 0;
ctx.clearRect(dir[0] * 10, dir[1] * 10, 14, 14); // efface les rectangles du serpent ok
}
}
else if (!tn.length)
{
sound('loser.mp3'); // chemin de la chanson
document.getElementById('start').style.zIndex='1';
document.getElementById('msg').innerHTML='Game Over<br/>Your score is:'+score+'<br/>Try again?';
window.clearInterval(interval);
/*$.post("sendscore.php",{game:'snake',score:score});*/
document.getElementById('replay').innerHTML='<input type="button" value="Replay" onclick="window.location.reload();" />';
return;
}
}
interval = window.setInterval(set_game_speed, level);
// fonction qui g�re la direction du serprent
document.onkeydown = function(e) {
e.preventDefault(); //bloque l'�coute clavier du navigateur
var code = e.keyCode - 37;
if (0 <= code && code < 4 && code !== tn[0])
{
tn.unshift(code);
}
else if (-5 == code) //Tout le else if est la fonction qui fait en sorte que l'espace acc�l�re le jeu
{
if (interval)
{
window.clearInterval(interval);
interval = 0;
}
else
{
interval = window.setInterval(set_game_speed, 60);
}
}
else
{
dir = sum + code;
if (dir == 44||dir==94||dir==126||dir==171) {
sum+= code
}
else if (dir === 218) easy = 1;
}
}
function change_background()
{
var background = new Array();
background[0] = "background.jpg";
background[200] = "background1.jpg";
background[400] = "background2.jpg";
background[800] = "background3.jpg";
background[1000] = "background4.jpg";
background[1200] = "background5.jpg";
background[1400] = "background6.jpg";
background[1600] = "background7.jpg";
background[1800] = "background8.jpg";
background[2000] = "background9.jpg";
background[2200] = "background10.jpg";
background[2400] = "background11.jpg";
document.getElementById('playArea').style.background = 'url('+background[score-(score%200)]+')';
}
}
function sound(arg)
{
var sId = 'sound';
var e = document.createElement('embed');
e.setAttribute('src',arg);
e.setAttribute('id',sId);
e.setAttribute('hidden','true');
e.setAttribute('autostart','true');
e.setAttribute('loop','true');
document.body.appendChild(e);
}
function reload()
{
window.location.reload();
}
function prechargement()
{
background = new Image;
background.src = "background.jpg";
background1 = new Image;
background1.src = "background1.jpg";
background2 = new Image;
background2.src = "background2.jpg";
background3 = new Image;
background3.src = "background3.jpg";
background4 = new Image;
background4.src = "background4.jpg";
background5 = new Image;
background5.src = "background5.jpg";
background6 = new Image;
background6.src = "background6.jpg";
background7 = new Image;
background7.src = "background7.jpg";
background8 = new Image;
background8.src = "background8.jpg";
background9 = new Image;
background9.src = "background9.jpg";
background10 = new Image;
background10.src = "background10.jpg";
background11 = new Image;
background11.src = "background11.jpg";
crunch = new Audio
crunch.src = "crunch.mp3"
loser = new Audio;
loser = "loser.mp3"
rand_frog()
} |
