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pf
2021-07-23 13:32:49 -07:00
parent 217b540c85
commit 9225e902e8
1 changed files with 0 additions and 95 deletions
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war/pong.html
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<meta name="viewport" content="width=820">
<title>Circuit Simulator Applet</title>
<link rel="SHORTCUT ICON" href="favicon.ico">
<body>
<hr>
<iframe id="circuitFrame" width=800 height=550 src="circuitjs.html?startCircuit=pong4digitalonly.txt"></iframe>
<p>
<div id="info"></div>
<canvas id="canvas" width=455 height=262 style="background-color:black;"></canvas>
<script>
// get iframe the simulator is running in. Must have same origin as this file!
var iframe = document.getElementById("circuitFrame");
var sim;
var freq, ampl;
var clk, net, ctx;
function round(x) {
return Math.round(x*1000)/1000;
}
var nettext = '';
var highlightY = -1;
var savedLine;
// called when simulator updates its display
function didUpdate(sim) {
var info = document.getElementById("info");
info.innerHTML = "time = " + round(sim.getTime()) + "<br>running = " + sim.isRunning();
// get voltage of labeled node "vsense"
if (clk == null)
clk = sim.getNode("CLK");
if (net == null)
net = sim.getNode("NET");
if (clk && net)
info.innerHTML += "<br>" + lastclk + " " + x + " "+ y ;
if (savedLine)
ctx.putImageData(savedLine, 0, highlightY);
highlightY = y-1;
ctx.fillStyle = "red";
savedLine = ctx.getImageData(0, highlightY, 455, 1);
ctx.fillRect(0, highlightY, 455, 1);
ctx.fillStyle = "white";
}
var lastclk = -1;
var x = 0, y = 0;
// called every timestep
function didStep(sim) {
if (!clk)
return;
var c = clk.getVoltage();
if (c == lastclk)
return;
if (c > 2.5) {
x++;
if (x == 456) {
x = 0;
y++;
if (sim.getNodeVoltage("VBLANK") > 2.5)
y = 0;
}
}
lastclk = c;
if (net.getVoltage() > 2.5) {
ctx.fillRect(x, y, 1, 1);
}
}
// callback called when simulation is done initializing
function simLoaded() {
// get simulator object
sim = iframe.contentWindow.CircuitJS1;
// set up callbacks on update and timestep
sim.onupdate = didUpdate;
sim.ontimestep = didStep;
ctx = canvas.getContext("2d");
//ctx.fillRect(0, 0, 455, 262);
ctx.strokeStyle = "white";
ctx.fillStyle = "white";
}
// set up callback
iframe.contentWindow.oncircuitjsloaded = simLoaded;
</script>