-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathSnakeMobile.html
218 lines (216 loc) · 8.9 KB
/
SnakeMobile.html
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
207
208
209
210
211
212
213
214
215
216
217
218
<!--Turned my web browser snake game into something that could run on the phone-->
<doctype html>
<html>
<title>
Snake
</title>
<canvas id="SnakeScreen" width="300" height="300" style="border: black solid 1px"> </canvas>
<script type="text/javascript">
var screen = document.querySelector("#SnakeScreen");
var context = screen.getContext('2d');
var bound = screen.getBoundingClientRect();
var tops = 0 - bound.top;
var lefts = 0 - bound.left;
var sWidth = 900, sHeight = 900;
screen.width = sWidth, screen.height = sHeight;
var model = {
snakehead: {xPos: 140/300 * sWidth, yPos: 140/300 * sWidth, pastX: null, pastY: null, blockSize: 10/300 * sWidth, direction: 'E'},
target: {xPos: null, yPos: null},
refreshSpeed: 100,
speedUp: false,
snakeArray: [],
game: true,
init: function() {
var M = model;
M.snakehead = {xPos: 140/300 * sWidth, yPos: 140/300 * sWidth, pastX: null, pastY: null, blockSize: 10/300 * sWidth, direction: 'E'};
M.newTarget();
M.refreshSpeed = 100;
M.speedUp = false;
M.snakeArray = [];
M.growth(4);
M.game = true;
},
obj: function(xpos,ypos) {
return {xPos: xpos, yPos: ypos, pastX: null, pastY: null};
},
newTarget: function() {
var M = model;
M.target.xPos = 10/300 * sWidth * Math.floor(Math.random() * 29);
M.target.yPos = 10/300 * sWidth * Math.floor(Math.random() * 29);
if (M.snakeArray.some(function(AE){
return M.collisions(AE.xPos, AE.yPos, M.target.xPos, M.target.yPos);
})) {
M.newTarget();
}
},
updatePos: function() {
var SH = model.snakehead;
SH.pastX = SH.xPos;
SH.pastY = SH.yPos;
if (SH.direction === 'E')
SH.xPos += SH.blockSize;
else if (SH.direction === 'W')
SH.xPos -= SH.blockSize;
else if (SH.direction === 'N')
SH.yPos -= SH.blockSize;
else if (SH.direction === 'S')
SH.yPos += SH.blockSize;
},
updateSA: function() {
var SA = model.snakeArray;
SA[0].pastX = SA[0].xPos, SA[0].pastY = SA[0].yPos;
SA[0].xPos = model.snakehead.pastX;
SA[0].yPos = model.snakehead.pastY;
for(var i = 1; i < SA.length; i++) {
SA[i].pastX = SA[i].xPos, SA[i].pastY = SA[i].yPos;
SA[i].xPos = SA[i-1].pastX, SA[i].yPos = SA[i-1].pastY;
}
},
move: function () {
addEventListener('touchstart', function(event) {
var x = event.touches[0].clientX + lefts;
var y = event.touches[0].clientY + tops;
if (x > y && x > sWidth - y) {
if (model.snakehead.direction != 'W')
model.snakehead.direction = 'E';
}
else if ((x > sWidth - y && x < y)) {
if (model.snakehead.direction != 'N')
model.snakehead.direction = 'S';
}
else if (x < y && x < sWidth - y) {
if (model.snakehead.direction != 'E')
model.snakehead.direction = 'W';
}
else if (x > y && x < sWidth - y) {
if (model.snakehead.direction != 'S')
model.snakehead.direction = 'N';
}
}, false)},
growth: function(j) {
var SA = model.snakeArray;
//for growths after first
if (SA.length > 0) {
for (var i = 0; i<j; i++) {
model.snakeArray.push(model.obj(SA[SA.length-1].xPos, SA[SA.length-1].yPos));
}
}
//for first growth
else {
for (var i = 0; i<j; i++) {
model.snakeArray.push(model.obj(model.snakehead.xPos, model.snakehead.yPos));
}
}
},
collisions: function(x1,y1,x2,y2) {
var sz = model.snakehead.blockSize;
if (x1 > x2 - sz/2 && x1 - sz/2 < x2 + sz/2
&& y1 > y2 - sz/2 && y1 - sz/2 < y2 + sz/2)
return true;
else
return false;
},
targetCollisions: function() {
var M = model;
if(M.collisions(M.target.xPos, M.target.yPos, M.snakehead.xPos, M.snakehead.yPos)) {
M.growth(3);
if (M.refreshSpeed > 20)
M.refreshSpeed-=1;
M.newTarget();
M.speedUp = true;
}
},
tailCollisions: function() {
var M = model;
if (M.snakeArray.some(function(AE) {
return M.collisions(AE.xPos, AE.yPos, M.snakehead.xPos, M.snakehead.yPos);
})) {
model.game = false;
}
},
wallCollisions: function() {
var SH = model.snakehead;
if (SH.xPos > 290/300 * sWidth || SH.xPos < 0 || SH.yPos > 290/300 * sWidth || SH.yPos < 0) {
model.game = false;
}
},
renderGame: function() {
model.updatePos();
model.updateSA();
model.targetCollisions();
model.tailCollisions();
model.wallCollisions();
}
}
var octopus = {
init: function() {
view.init();
model.init();
var listener = function(event) {
octopus.setSpeed();
model.move();
removeEventListener('touchend', listener, false);
};
addEventListener('touchend', listener, false);
},
setSpeed: function() {
octopus.intervalID = setInterval(function(){
octopus.render();
}, model.refreshSpeed);
},
clear: function() {
clearInterval(octopus.intervalID);
},
intervalID: null,
render: function() {
var SH = model.snakehead;
if (model.game) {
context.clearRect(0,0,sWidth,sHeight);
view.renderGame(SH.xPos, SH.yPos, SH.blockSize);
model.snakeArray.forEach(function(AE) {
view.renderGame(AE.xPos, AE.yPos, SH.blockSize);
});
view.renderGame(model.target.xPos,model.target.yPos, SH.blockSize);
model.renderGame();
if (model.speedUp) {
octopus.clear();
octopus.setSpeed();
model.speedUp = false;
}
}
else {
octopus.clear();
view.endScreen(model.snakeArray.length);
var listener = function(event) {
octopus.init();
removeEventListener('touchend', listener, false);
};
setTimeout(function() {
addEventListener('touchend', listener, false);
}, 2000);
}
}
}
var view = {
init: function() {
context.clearRect(0,0,sWidth,sWidth);
context.fillText("To Start Tap Screen", 120/300 * sWidth, 140/300 * sWidth);
},
renderGame: function(x,y,size) {
view.drawSnake(x,y,size);
},
drawSnake: function(x,y,size) {
context.fillStyle = 'black';
context.fillRect(x,y,size*9/10,size*9/10);
},
endScreen: function(score) {
context.font = '20px Verdana';
context.fillText("Game Over", 100/300 * sWidth, 140/300 * sWidth);
context.fillText("Score:" + score, 100/300 * sWidth, 160/300 * sWidth);
context.font = '10px Verdana';
context.fillText("Tap Screen For New Game", 100/300 * sWidth, 180/300 * sWidth);
}
}
octopus.init();
</script>
</html>