Created
May 29, 2011 12:51
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canvas上でproccessing.js使うサンプル
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Processing</title> | |
<meta charset="utf-8"> | |
</head> | |
<body> | |
<canvas width="500" height="400"></canvas> | |
<script src="js/processing-1.1.0.min.js"></script> | |
<script> | |
window.onload = function(){ | |
var canvas = document.getElementsByTagName('canvas')[0]; | |
var codeElm = document.getElementById('processing-code'); | |
var code = codeElm.textContent || codeElm.innerText; | |
new Processing(canvas, code); | |
}; | |
</script> | |
<script id="processing-code" type="application/processing"> | |
//Processing code | |
void setup() { | |
size(320, 320); // 9leaps | |
frameRate(30); | |
noCursor(); // clear mouse cursor | |
rectMode(CENTER); | |
boss = new Boss(width/2, 30); | |
} | |
void ship(int x, int y){ | |
stroke(255, 255, 255); | |
noFill(); | |
triangle(x, y - 7, x- 10, y + 7, x + 10, y + 7); | |
if (mousePressed) { | |
line(x, y - 7, x, 0); //draw beam | |
} | |
} | |
class Tama { | |
float tx, ty, tr, dx, dy; | |
Tama(float x, float y, float r, float ldx, float ldy) { | |
tx = x; | |
ty = y; | |
tr = r; | |
dx = ldx; | |
dy = ldy; | |
} | |
boolean update() { | |
tx += dx; | |
ty += dy; | |
stroke(255, 0, 0); | |
ellipse(tx, ty, tr, tr); | |
if (ty > height || ty <0 ||tx >width|| tx<0) { | |
return false; | |
} | |
return true; | |
} | |
} | |
class Boss { | |
float bx, by; | |
ArrayList danmaku; | |
Boss(float x, float y){ | |
bx = x; | |
by = y; | |
danmaku = new ArrayList(); | |
} | |
void fire_360(float x, float y){ | |
for (int i=0; i<360;i +=10) { | |
float rad = radians(i); | |
danmaku.add(new Tama(x, y, 10,cos(rad), sin(rad))); | |
} | |
} | |
void update(){ | |
float dx; | |
dx = 50.0 * sin(radians(frameCount * 4)); | |
stroke(0,255,0); | |
rect(bx + dx, by, 50, 20); | |
if(frameCount % 30 == 0){ | |
fire_360(bx + dx, by); | |
} | |
for (int i = danmaku.size() - 1; i >=0; i--;){ | |
Tama t = (Tama)danmaku.get(i); | |
if(t.update() == false){ | |
danmaku.remove(i); | |
} | |
} | |
} | |
} | |
void draw() { | |
background(0); | |
ship(mouseX, mouseY); | |
boss.update(); | |
} | |
</script> | |
</body> | |
</html> |
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