-
Notifications
You must be signed in to change notification settings - Fork 0
/
road.js
161 lines (133 loc) · 2.83 KB
/
road.js
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
var height = 768;
var width = 1366;
var cX = width/2;
var cY = height/2;
var c = document.getElementById("canvas");
var ctx = c.getContext("2d");
// offset from top left corner of canvas
var mx = -60;
var my = -120;
var paused = false;
var l = []; // array of lights
var d; // depth layers
var dk; // darkness
var s; // speed
var p; // particles
var maxL = 50; // max luminosity
var minL = 40; //min luminosity
var dChange;
var animS = 45;
var mR; // max radius
var follow = false;
var colour = 180;
var cC; // colour change speed
var rY = 50; // range of gen on x
var rX = 50; // range of gen on y
function genLight () {
// distance, radius, x, y
l.push([d, Math.random()*rX + cX - rX/2,
Math.random()*rY + cY - rY/2, colour]);
}
function setFollow() {
if (!follow) {
follow = true;
document.getElementById('canvas').onmousemove = setMouseLoc;
}
else {
follow = false;
cX = width/2;
cY = height/2;
document.getElementById('canvas').onmousemove = '';
}
}
var amount = 0;
function setMouseLoc(event) {
var rect = ctx.canvas.getBoundingClientRect();
cX = event.clientX;
cY = event.clientY;
console.log(cX + " " + cY);
}
function setD (nD) {
d = nD;
}
function setS (nS) {
s = nS/100;
}
function setP (nP) {
p = nP;
}
function setDC (nDC) {
dChange = nDC;
}
function setRX (nRX) {
rX = nRX;
}
function setRY (nRY) {
rY = nRY;
}
function setDK (nDK) {
dk = nDK/100;
}
function setAS (nAS) {
pause();
animS = 252 - nAS;
pause();
}
function setMR (nMR) {
mR = nMR/10;
}
function setCC (nCC) {
cC = nCC;
}
setD(document.getElementById('dS').value);
setS(document.getElementById('sS').value);
setP(document.getElementById('pS').value);
setDC(document.getElementById('dC').value);
setRX(document.getElementById('rXS').value);
setRY(document.getElementById('rYS').value);
setDK(document.getElementById('dkS').value);
setMR(document.getElementById('mrS').value);
setCC(document.getElementById('ccS').value);
function road() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
for (var i = 0; i < p; i++) {
genLight();
}
if (colour < 0) {
colour = 360;
}
else {
colour -= cC;
}
for(var i = l.length - 1; i > 0; i--){
if (l[i][0] <= dChange || l[i][1] > width || l[i][2] > height) {
l.splice(i, 1);
}
else {
ctx.beginPath();
ctx.arc(
l[i][1], // x
l[i][2], // y
mR - (l[i][0]*1.2)/d, // r
0, 6.2832);
l[i][0] -= dChange;
l[i][1] = (l[i][1] - cX)*s + cX; // x change
l[i][2] = (l[i][2] - cY)*s + cY; // y change
ctx.fillStyle = "hsl(" + l[i][3]
+ ", 90%, " + (50 - 100*dk*(l[i][0]/d)) + "%)";
ctx.fill();
}
}
}
var interval = setInterval(road, animS);
function pause () {
if (!paused) {
paused = true;
interval = clearTimeout(interval);
}
else {
paused = false;
interval = setInterval(road, animS);
}
}
c.onmousedown = pause;