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
|
var balls = [];
var canvasX = 0;
var canvasY = 0;
var timer = null;
var m_lastX = 0;
var m_lastY = 0;
var M_SPACE = 24;
var B_VMIN = 5;
var B_VMAX = 5;
var B_WIDTH = 13;
var B_HEIGHT = 13;
var useMouse = null;
var ballSound = null;
var ballPopSound = null;
function rnd(n) {
return Math.random()*n;
}
function rndI(n) {
return parseInt(rnd(n));
}
function createBall(oParent) {
oParent.appendChild(balls[0].cloneNode(true));
initBall(balls[balls.length-1],balls.length);
}
function createBallAtMouse(e) {
e = e?e:event;
createBall(document.getElementById('ball-container'));
with (balls[balls.length-1]) {
_x = e.clientX;
_y = e.clientY;
if (useMouse.checked != false) {
_vX = (m_lastX-e.clientX)*-0.7;
_vY = (m_lastY-e.clientY)*-0.7;
} else {
_vX = 0;
_vY = 0;
}
}
moveBall(balls[balls.length-1]);
}
function initBall(oBall,i) {
oBall._id = 'ball'+i;
oBall._active = true;
oBall._x = rnd(canvasX);
oBall._y = rnd(canvasY);
oBall._vX = B_VMIN+rnd(B_VMAX)*(Math.random()>0.5?1:-1);
oBall._vY = B_VMIN+rnd(B_VMAX);
oBall.style.display = 'block';
}
function moveBall(oBall) {
oBall._x += oBall._vX;
oBall._y += (oBall._vY++); // gravity!
var bounce = false;
if ((oBall._vX>0 && oBall._x+oBall._vX+B_WIDTH>canvasX) || (oBall._vX<0 && oBall._x+oBall._vX<0)) {
oBall._vX *= -1;
bounce = true;
}
if ((oBall._vY>0 && oBall._y+oBall._vY+B_HEIGHT>canvasY) || (oBall._vY<0 && oBall._y+oBall._vY<0)) {
// bounce on Y axis - with resistance on both axes
if (oBall._vY>0) oBall._y = canvasY-B_HEIGHT; // bounce exactly from bottom
oBall._vY *= -(oBall._vY>1?0.6:1);
bounce = true;
if (Math.abs(oBall._vX)>0.5) {
oBall._vX *= 0.85;
} else {
oBall._vX = 0;
}
if (Math.abs(oBall._vY)<=3 && Math.abs(oBall._vX==0)) {
oBall._active = false;
bounce = false;
ballPopSound.play();
oBall.style.display = 'none';
}
}
oBall.style.left = oBall._x+'px';
oBall.style.top = oBall._y+'px';
if (bounce) ballSound.play({pan:getPan(oBall._x,canvasX)});
}
function getPan(x,canvasX) {
var pos = x/canvasX;
var pan = null;
if (pos<=0.4) {
pan = Math.floor(-100+(pos/0.4*100));
} else if (pos>0.4 && pos<=0.5) {
pan = 0;
} else {
pan = Math.floor(pos*100);
}
return pan;
}
function animateStuff() {
for (var i=balls.length; i--;) {
if (balls[i]._active) moveBall(balls[i]);
}
}
function startAnimation() {
if (!timer) timer = setInterval(animateStuff,20);
document.getElementById('b-start').disabled = true;
document.getElementById('b-stop').disabled = false;
}
function stopAnimation() {
if (!timer) return false;
clearInterval(timer);
timer = null;
document.getElementById('b-start').disabled = false;
document.getElementById('b-stop').disabled = true;
}
function mouseDown(e) {
e = e?e:event;
m_lastX = e.clientX;
m_lastY = e.clientY;
document.onmousemove = mouseMove;
document.onmouseup = mouseUp;
return false;
}
function mouseMove(e) {
e = e?e:event;
if (Math.abs(e.clientX-m_lastX)>M_SPACE || Math.abs(e.clientY-m_lastY)>M_SPACE) {
createBallAtMouse(e);
m_lastX = e.clientX;
m_lastY = e.clientY;
}
return false;
}
function mouseUp() {
document.onmousemove = null;
document.onmouseup = null;
}
function init() {
ballSound = soundManager.createSound({
id: 'ballSound',
url: '../animation/audio/fingerplop.mp3',
volume: 50,
multiShot: true,
autoLoad: true
});
ballPopSound = soundManager.createSound({
id: 'ballPopSound',
url: '../animation/audio/fingerplop2.mp3',
volume: 50,
multiShot: true,
autoLoad: true
});
balls = document.getElementById('ball-container').getElementsByTagName('img');
for (var i=balls.length; i--;) {
initBall(balls[i],i);
}
useMouse = document.getElementById('useMouse');
useMouse.checked = true;
getWindowCoords();
startAnimation();
document.onmousedown = mouseDown;
}
// I know this is kinda broken in Opera.
getWindowCoords = (navigator.userAgent.toLowerCase().indexOf('opera')>0||navigator.appVersion.toLowerCase().indexOf('safari')!=-1)?function() {
canvasX = window.innerWidth;
canvasY = window.innerHeight;
}:function() {
canvasX = document.documentElement.clientWidth||document.body.clientWidth||document.body.scrollWidth;
canvasY = document.documentElement.clientHeight||document.body.clientHeight||document.body.scrollHeight;
}
window.onresize = getWindowCoords;
soundManager.flashVersion = 9;
soundManager.url = '../../swf/';
soundManager.useHighPerformance = true;
soundManager.debugMode = false; // disable debug mode
soundManager.defaultOptions.multiShot = true;
soundManager.onload = function() {
// soundManager is ready to use (create sounds and so on)
init();
}
|
