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sine line fix & simplification 

Corrected first sine line section. Removed radius offset from sine line x values. & Simplified
pull/3039/head
g-rden 2023-10-07 22:30:37 +00:00 committed by GitHub
parent 2993d391d5
commit 5a54681954
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 5 deletions
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9
apps/sunrise/app.js
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@ -183,7 +183,7 @@ function drawSinuses () {
g.setColor(1, 1, 1);
let y = ypos(x);
while (x < w) {
y2 = ypos(x);
y2 = ypos(x + sinStep);
g.drawLine(x, y, x + sinStep, y2);
y = y2;
x += sinStep; // no need to draw all steps
@ -225,7 +225,7 @@ function drawGlow () {
}
const rh = r / 2;
const x = pos;
const y = ypos(x - r);
const y = ypos(x);
const r2 = 0;
if (x > sunRiseX && x < sunSetX) {
g.setColor(0.2, 0.2, 0);
@ -246,8 +246,7 @@ function seaLevel (hour) {
}
function ypos (x) {
const pc = (x * 100 / w);
return oy + (32 * Math.sin(1.7 + (pc / 16)));
return oy + (32 * Math.sin(1.7 + (x * 100 / (16 * w))));
}
function xfromTime (t) {
@ -260,7 +259,7 @@ function drawBall () {
if (frames < 1 && realTime) {
x = xfromTime(now.getHours());
}
const y = ypos(x - r);
const y = ypos(x);
// glow
if (x < sunRiseX || x > sunSetX) {