ritual.sh/assets/js/button-generator.js
2026-01-08 14:07:50 +00:00

1299 lines
43 KiB
JavaScript

(function () {
// Wait for DOM to be ready
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", init);
} else {
init();
}
function init() {
setupCollapsible();
setupButtonGenerator();
}
// Collapsible sections functionality
function setupCollapsible() {
const headers = document.querySelectorAll(".control-group-header");
console.log("Found", headers.length, "collapsible headers");
headers.forEach((header) => {
header.addEventListener("click", () => {
const controlGroup = header.closest(".control-group");
if (controlGroup) {
controlGroup.classList.toggle("collapsed");
console.log("Toggled collapsed on", header.textContent.trim());
}
});
});
}
function setupButtonGenerator() {
const canvas = document.getElementById("button-canvas");
const ctx = canvas.getContext("2d");
// Preload all web fonts for canvas rendering
const fonts = [
"Lato",
"Roboto",
"Open Sans",
"Montserrat",
"Oswald",
"Bebas Neue",
"Roboto Mono",
"VT323",
"Press Start 2P",
"DSEG7-Classic",
];
// Load fonts using CSS Font Loading API
const fontPromises = fonts.flatMap((font) => [
document.fonts.load(`400 12px "${font}"`),
document.fonts.load(`700 12px "${font}"`),
document.fonts.load(`italic 400 12px "${font}"`),
]);
Promise.all(fontPromises).then(() => {
console.log("All fonts loaded for canvas");
drawButton();
});
// Animation configuration
const ANIMATION_CONFIG = {
fps: 20,
duration: 2, // seconds
get totalFrames() {
return this.fps * this.duration;
}, // 40 frames
};
// Animation state class - passed to drawToContext for frame-based rendering
class AnimationState {
constructor(frameNumber = 0, totalFrames = 40) {
this.frame = frameNumber;
this.totalFrames = totalFrames;
this.progress = frameNumber / totalFrames; // 0 to 1
this.time = (frameNumber / ANIMATION_CONFIG.fps) * 1000; // milliseconds
}
// Helper to get phase for periodic animations (0 to 2π)
getPhase(speed = 1.0) {
return this.progress * speed * Math.PI * 2;
}
}
// Get all controls
const controls = {
text: document.getElementById("button-text"),
textEnabled: document.getElementById("text-enabled"),
fontSize: document.getElementById("font-size"),
textX: document.getElementById("text-x"),
textY: document.getElementById("text-y"),
textColorType: document.getElementById("text-color-type"),
textColor: document.getElementById("text-color"),
textGradientColor1: document.getElementById("text-gradient-color1"),
textGradientColor2: document.getElementById("text-gradient-color2"),
textGradientAngle: document.getElementById("text-gradient-angle"),
textOutline: document.getElementById("text-outline"),
outlineColor: document.getElementById("outline-color"),
fontFamily: document.getElementById("font-family"),
fontBold: document.getElementById("font-bold"),
fontItalic: document.getElementById("font-italic"),
text2: document.getElementById("button-text2"),
text2Enabled: document.getElementById("text2-enabled"),
fontSize2: document.getElementById("font-size2"),
text2X: document.getElementById("text2-x"),
text2Y: document.getElementById("text2-y"),
text2ColorType: document.getElementById("text2-color-type"),
text2Color: document.getElementById("text2-color"),
text2GradientColor1: document.getElementById("text2-gradient-color1"),
text2GradientColor2: document.getElementById("text2-gradient-color2"),
text2GradientAngle: document.getElementById("text2-gradient-angle"),
text2Outline: document.getElementById("text2-outline"),
outline2Color: document.getElementById("outline2-color"),
fontFamily2: document.getElementById("font-family2"),
fontBold2: document.getElementById("font-bold2"),
fontItalic2: document.getElementById("font-italic2"),
bgType: document.getElementById("bg-type"),
bgColor: document.getElementById("bg-color"),
gradientColor1: document.getElementById("gradient-color1"),
gradientColor2: document.getElementById("gradient-color2"),
gradientAngle: document.getElementById("gradient-angle"),
textureType: document.getElementById("texture-type"),
textureColor1: document.getElementById("texture-color1"),
textureColor2: document.getElementById("texture-color2"),
textureScale: document.getElementById("texture-scale"),
borderWidth: document.getElementById("border-width"),
borderColor: document.getElementById("border-color"),
borderStyle: document.getElementById("border-style"),
// Animation controls
animateTextWave: document.getElementById("animate-text-wave"),
waveAmplitude: document.getElementById("wave-amplitude"),
waveSpeed: document.getElementById("wave-speed"),
animateTextWave2: document.getElementById("animate-text-wave2"),
waveAmplitude2: document.getElementById("wave-amplitude2"),
waveSpeed2: document.getElementById("wave-speed2"),
animateBgRainbow: document.getElementById("animate-bg-rainbow"),
rainbowSpeed: document.getElementById("rainbow-speed"),
animateBgRainbowGradient: document.getElementById(
"animate-bg-rainbow-gradient",
),
animateTextRainbow: document.getElementById("animate-text-rainbow"),
textRainbowSpeed: document.getElementById("text-rainbow-speed"),
animateTextRainbow2: document.getElementById("animate-text-rainbow2"),
textRainbowSpeed2: document.getElementById("text-rainbow-speed2"),
animateGlitch: document.getElementById("animate-glitch"),
glitchIntensity: document.getElementById("glitch-intensity"),
animatePulse: document.getElementById("animate-pulse"),
pulseScale: document.getElementById("pulse-scale"),
animateShimmer: document.getElementById("animate-shimmer"),
animateScanline: document.getElementById("animate-scanline"),
scanlineIntensity: document.getElementById("scanline-intensity"),
scanlineSpeed: document.getElementById("scanline-speed"),
animateRgbSplit: document.getElementById("animate-rgb-split"),
rgbSplitIntensity: document.getElementById("rgb-split-intensity"),
animateNoise: document.getElementById("animate-noise"),
noiseIntensity: document.getElementById("noise-intensity"),
animateRotate: document.getElementById("animate-rotate"),
rotateAngle: document.getElementById("rotate-angle"),
rotateSpeed: document.getElementById("rotate-speed"),
};
// Update value displays
const updateValueDisplay = (id, value) => {
const display = document.getElementById(id + "-value");
if (display) display.textContent = value;
};
// Show/hide controls based on background type
controls.bgType.addEventListener("change", () => {
const solidControls = document.getElementById("solid-controls");
const gradientControls = document.getElementById("gradient-controls");
const textureControls = document.getElementById("texture-controls");
solidControls.style.display = "none";
gradientControls.style.display = "none";
textureControls.style.display = "none";
if (controls.bgType.value === "solid") {
solidControls.style.display = "block";
} else if (controls.bgType.value === "gradient") {
gradientControls.style.display = "block";
} else if (controls.bgType.value === "texture") {
textureControls.style.display = "block";
}
drawButton();
});
// Show/hide text color controls
controls.textColorType.addEventListener("change", () => {
const textSolidColor = document.getElementById("text-solid-color");
const textGradientColor = document.getElementById("text-gradient-color");
if (controls.textColorType.value === "solid") {
textSolidColor.style.display = "block";
textGradientColor.style.display = "none";
} else {
textSolidColor.style.display = "none";
textGradientColor.style.display = "block";
}
drawButton();
});
controls.text2ColorType.addEventListener("change", () => {
const text2SolidColor = document.getElementById("text2-solid-color");
const text2GradientColor = document.getElementById(
"text2-gradient-color",
);
if (controls.text2ColorType.value === "solid") {
text2SolidColor.style.display = "block";
text2GradientColor.style.display = "none";
} else {
text2SolidColor.style.display = "none";
text2GradientColor.style.display = "block";
}
drawButton();
});
// Show/hide outline color
controls.textOutline.addEventListener("change", () => {
controls.outlineColor.style.display = controls.textOutline.checked
? "block"
: "none";
drawButton();
});
controls.text2Outline.addEventListener("change", () => {
controls.outline2Color.style.display = controls.text2Outline.checked
? "block"
: "none";
drawButton();
});
// Draw texture patterns
function drawTexture(type, color1, color2, scale) {
const tempCanvas = document.createElement("canvas");
tempCanvas.width = 88;
tempCanvas.height = 31;
const tempCtx = tempCanvas.getContext("2d");
tempCtx.fillStyle = color1;
tempCtx.fillRect(0, 0, 88, 31);
tempCtx.fillStyle = color2;
const size = Math.max(2, Math.floor(scale / 10));
switch (type) {
case "dots":
for (let y = 0; y < 31; y += size * 2) {
for (let x = 0; x < 88; x += size * 2) {
tempCtx.beginPath();
tempCtx.arc(x, y, size / 2, 0, Math.PI * 2);
tempCtx.fill();
}
}
break;
case "grid":
for (let x = 0; x < 88; x += size) {
tempCtx.fillRect(x, 0, 1, 31);
}
for (let y = 0; y < 31; y += size) {
tempCtx.fillRect(0, y, 88, 1);
}
break;
case "diagonal":
for (let i = -31; i < 88; i += size) {
tempCtx.fillRect(i, 0, 2, 31);
tempCtx.save();
tempCtx.translate(i + 1, 0);
tempCtx.rotate(Math.PI / 4);
tempCtx.fillRect(0, 0, 2, 100);
tempCtx.restore();
}
break;
case "checkerboard":
for (let y = 0; y < 31; y += size) {
for (let x = 0; x < 88; x += size) {
if ((x / size + y / size) % 2 === 0) {
tempCtx.fillRect(x, y, size, size);
}
}
}
break;
case "noise":
for (let y = 0; y < 31; y++) {
for (let x = 0; x < 88; x++) {
if (Math.random() > 0.5) {
tempCtx.fillRect(x, y, 1, 1);
}
}
}
break;
case "stars":
for (let i = 0; i < scale; i++) {
const x = Math.floor(Math.random() * 88);
const y = Math.floor(Math.random() * 31);
tempCtx.fillRect(x, y, 1, 1);
tempCtx.fillRect(x - 1, y, 1, 1);
tempCtx.fillRect(x + 1, y, 1, 1);
tempCtx.fillRect(x, y - 1, 1, 1);
tempCtx.fillRect(x, y + 1, 1, 1);
}
break;
}
return tempCanvas;
}
// Helper function to draw text line with optional wave animation
function drawTextLine(context, lineNumber, animState) {
const prefix = lineNumber === 1 ? "" : "2";
const text = controls[`text${prefix}`].value;
const enabled = controls[`text${prefix}Enabled`].checked;
if (!text || !enabled) return;
const fontSize = parseFloat(controls[`fontSize${prefix}`].value);
const fontWeight = controls[`fontBold${prefix}`].checked
? "bold"
: "normal";
const fontStyle = controls[`fontItalic${prefix}`].checked
? "italic"
: "normal";
const fontFamily = controls[`fontFamily${prefix}`].value;
context.font = `${fontStyle} ${fontWeight} ${fontSize}px "${fontFamily}"`;
context.textAlign = "center";
context.textBaseline = "middle";
const baseX = (parseFloat(controls[`text${prefix}X`].value) / 100) * 88;
const baseY = (parseFloat(controls[`text${prefix}Y`].value) / 100) * 31;
// Check if wave animation is enabled
const waveEnabled =
animState && controls[`animateTextWave${prefix}`]?.checked;
if (waveEnabled) {
drawWaveText(
context,
text,
baseX,
baseY,
fontSize,
animState,
lineNumber,
);
} else {
drawStandardText(
context,
text,
baseX,
baseY,
fontSize,
animState,
lineNumber,
);
}
}
// Draw standard (non-wave) text
function drawStandardText(
context,
text,
x,
y,
fontSize,
animState,
lineNumber,
) {
const prefix = lineNumber === 1 ? "" : "2";
// Get colors (with potential rainbow animation)
const colors = getTextColors(
lineNumber,
animState,
context,
text,
x,
y,
fontSize,
);
if (controls[`text${prefix}Outline`].checked) {
context.strokeStyle = colors.strokeStyle;
context.lineWidth = 2;
context.strokeText(text, x, y);
}
context.fillStyle = colors.fillStyle;
context.fillText(text, x, y);
}
// Draw wave-animated text (character by character)
function drawWaveText(
context,
text,
baseX,
baseY,
fontSize,
animState,
lineNumber,
) {
const prefix = lineNumber === 1 ? "" : "2";
const amplitude = parseFloat(controls[`waveAmplitude${prefix}`].value);
const speed = parseFloat(controls[`waveSpeed${prefix}`].value);
// Measure total width for centering
const totalWidth = context.measureText(text).width;
let currentX = baseX - totalWidth / 2;
for (let i = 0; i < text.length; i++) {
const char = text[i];
const charWidth = context.measureText(char).width;
// Calculate wave offset for this character
const phase = animState.getPhase(speed);
const charOffset = i / text.length; // 0 to 1
const waveY = Math.sin(phase + charOffset * Math.PI * 2) * amplitude;
const charX = currentX + charWidth / 2;
const charY = baseY + waveY;
// Get colors for this character
const colors = getTextColors(
lineNumber,
animState,
context,
char,
charX,
charY,
fontSize,
);
// Draw outline if enabled
if (controls[`text${prefix}Outline`].checked) {
context.strokeStyle = colors.strokeStyle;
context.lineWidth = 2;
context.strokeText(char, charX, charY);
}
// Draw character
context.fillStyle = colors.fillStyle;
context.fillText(char, charX, charY);
currentX += charWidth;
}
}
// Get text colors (solid, gradient, or rainbow)
function getTextColors(
lineNumber,
animState,
context,
text,
x,
y,
fontSize,
) {
const prefix = lineNumber === 1 ? "" : "2";
const colorType = controls[`text${prefix}ColorType`].value;
let fillStyle, strokeStyle;
// Rainbow text animation overrides other colors
if (animState && controls[`animateTextRainbow${prefix}`]?.checked) {
const hue =
(animState.progress *
parseFloat(controls[`textRainbowSpeed${prefix}`].value) *
360) %
360;
fillStyle = `hsl(${hue}, 80%, 60%)`;
strokeStyle = `hsl(${hue}, 80%, 30%)`;
} else if (colorType === "solid") {
fillStyle = controls[`text${prefix}Color`].value;
strokeStyle = controls[`outline${prefix}Color`].value;
} else {
// Gradient
const angle =
parseFloat(controls[`text${prefix}GradientAngle`].value) *
(Math.PI / 180);
const textWidth = context.measureText(text).width;
const x1 = x - textWidth / 2 + (Math.cos(angle) * textWidth) / 2;
const y1 = y - fontSize / 2 + (Math.sin(angle) * fontSize) / 2;
const x2 = x + textWidth / 2 - (Math.cos(angle) * textWidth) / 2;
const y2 = y + fontSize / 2 - (Math.sin(angle) * fontSize) / 2;
const textGradient = context.createLinearGradient(x1, y1, x2, y2);
textGradient.addColorStop(
0,
controls[`text${prefix}GradientColor1`].value,
);
textGradient.addColorStop(
1,
controls[`text${prefix}GradientColor2`].value,
);
fillStyle = textGradient;
strokeStyle = controls[`outline${prefix}Color`].value;
}
return { fillStyle, strokeStyle };
}
// Helper function to draw to a single context
function drawToContext(context, animState = null) {
context.clearRect(0, 0, 88, 31);
// Apply rotate effect (must be before drawing)
if (animState && controls.animateRotate?.checked) {
const maxAngle = parseFloat(controls.rotateAngle.value);
const speed = parseFloat(controls.rotateSpeed.value);
const angle =
Math.sin(animState.getPhase(speed)) * maxAngle * (Math.PI / 180);
context.save();
context.translate(44, 15.5);
context.rotate(angle);
context.translate(-44, -15.5);
}
// Draw background
if (controls.bgType.value === "solid") {
// Rainbow flash for solid colors
if (animState && controls.animateBgRainbow?.checked) {
const hue =
(animState.progress *
parseFloat(controls.rainbowSpeed.value) *
360) %
360;
context.fillStyle = `hsl(${hue}, 70%, 50%)`;
} else {
context.fillStyle = controls.bgColor.value;
}
context.fillRect(0, 0, 88, 31);
} else if (controls.bgType.value === "gradient") {
const angle =
parseFloat(controls.gradientAngle.value) * (Math.PI / 180);
const x1 = 44 + Math.cos(angle) * 44;
const y1 = 15.5 + Math.sin(angle) * 15.5;
const x2 = 44 - Math.cos(angle) * 44;
const y2 = 15.5 - Math.sin(angle) * 15.5;
const gradient = context.createLinearGradient(x1, y1, x2, y2);
// Rainbow flash for gradients
if (animState && controls.animateBgRainbow?.checked) {
const hue =
(animState.progress *
parseFloat(controls.rainbowSpeed.value) *
360) %
360;
gradient.addColorStop(0, `hsl(${hue}, 70%, 50%)`);
gradient.addColorStop(1, `hsl(${(hue + 60) % 360}, 70%, 60%)`);
} else {
gradient.addColorStop(0, controls.gradientColor1.value);
gradient.addColorStop(1, controls.gradientColor2.value);
}
context.fillStyle = gradient;
context.fillRect(0, 0, 88, 31);
} else if (controls.bgType.value === "texture") {
const texture = drawTexture(
controls.textureType.value,
controls.textureColor1.value,
controls.textureColor2.value,
parseFloat(controls.textureScale.value),
);
context.drawImage(texture, 0, 0);
}
// Rainbow gradient overlay (travels across background)
if (animState && controls.animateBgRainbowGradient?.checked) {
// Map progress to position (-100 to 100)
const position = animState.progress * 200 - 100;
// Create a horizontal gradient that sweeps across
const rainbowGradient = context.createLinearGradient(
position - 50,
0,
position + 50,
0,
);
// Create rainbow stops that also cycle through colors
const hueOffset = animState.progress * 360;
rainbowGradient.addColorStop(
0,
`hsla(${(hueOffset + 0) % 360}, 80%, 50%, 0)`,
);
rainbowGradient.addColorStop(
0.2,
`hsla(${(hueOffset + 60) % 360}, 80%, 50%, 0.6)`,
);
rainbowGradient.addColorStop(
0.4,
`hsla(${(hueOffset + 120) % 360}, 80%, 50%, 0.8)`,
);
rainbowGradient.addColorStop(
0.6,
`hsla(${(hueOffset + 180) % 360}, 80%, 50%, 0.8)`,
);
rainbowGradient.addColorStop(
0.8,
`hsla(${(hueOffset + 240) % 360}, 80%, 50%, 0.6)`,
);
rainbowGradient.addColorStop(
1,
`hsla(${(hueOffset + 300) % 360}, 80%, 50%, 0)`,
);
context.fillStyle = rainbowGradient;
context.fillRect(0, 0, 88, 31);
}
// Draw border
const borderWidth = parseFloat(controls.borderWidth.value);
if (borderWidth > 0) {
const style = controls.borderStyle.value;
if (style === "solid") {
context.strokeStyle = controls.borderColor.value;
context.lineWidth = borderWidth;
context.strokeRect(
borderWidth / 2,
borderWidth / 2,
88 - borderWidth,
31 - borderWidth,
);
} else if (style === "inset" || style === "outset") {
const light = style === "outset";
context.strokeStyle = light ? "#ffffff" : "#000000";
context.lineWidth = borderWidth;
context.beginPath();
context.moveTo(0, 31);
context.lineTo(0, 0);
context.lineTo(88, 0);
context.stroke();
context.strokeStyle = light ? "#000000" : "#ffffff";
context.beginPath();
context.moveTo(88, 0);
context.lineTo(88, 31);
context.lineTo(0, 31);
context.stroke();
} else if (style === "ridge") {
context.strokeStyle = "#ffffff";
context.lineWidth = borderWidth / 2;
context.strokeRect(
borderWidth / 4,
borderWidth / 4,
88 - borderWidth / 2,
31 - borderWidth / 2,
);
context.strokeStyle = "#000000";
context.strokeRect(
(borderWidth * 3) / 4,
(borderWidth * 3) / 4,
88 - borderWidth * 1.5,
31 - borderWidth * 1.5,
);
}
}
// Apply pulse effect (scale before drawing text)
if (animState && controls.animatePulse?.checked) {
const maxScale = parseFloat(controls.pulseScale.value);
const minScale = 1.0;
const scale =
minScale +
(maxScale - minScale) *
(Math.sin(animState.getPhase(1.0)) * 0.5 + 0.5);
context.save();
context.translate(44, 15.5);
context.scale(scale, scale);
context.translate(-44, -15.5);
}
// Draw text line 1
drawTextLine(context, 1, animState);
// Draw text line 2
drawTextLine(context, 2, animState);
// Restore context if pulse was applied
if (animState && controls.animatePulse?.checked) {
context.restore();
}
// Apply shimmer effect
if (animState && controls.animateShimmer?.checked) {
const shimmerX = animState.progress * 120 - 20; // Sweep from -20 to 100
const shimmerGradient = context.createLinearGradient(
shimmerX - 15,
0,
shimmerX + 15,
31,
);
shimmerGradient.addColorStop(0, "rgba(255, 255, 255, 0)");
shimmerGradient.addColorStop(0.5, "rgba(255, 255, 255, 0.3)");
shimmerGradient.addColorStop(1, "rgba(255, 255, 255, 0)");
context.fillStyle = shimmerGradient;
context.fillRect(0, 0, 88, 31);
}
// Apply glitch effect
if (animState && controls.animateGlitch?.checked) {
applyGlitchEffect(context, animState);
}
// Apply scanline effect
if (animState && controls.animateScanline?.checked) {
applyScanlineEffect(context, animState);
}
// Apply RGB split effect
if (animState && controls.animateRgbSplit?.checked) {
applyRgbSplitEffect(context, animState);
}
// Apply noise effect
if (animState && controls.animateNoise?.checked) {
applyNoiseEffect(context, animState);
}
// Restore context if rotate was applied
if (animState && controls.animateRotate?.checked) {
context.restore();
}
}
// Apply glitch effect (scanline displacement)
function applyGlitchEffect(context, animState) {
const intensity = parseFloat(controls.glitchIntensity.value);
const imageData = context.getImageData(0, 0, 88, 31);
// Randomly glitch ~10% of scanlines per frame
const glitchProbability = 0.1;
const maxOffset = intensity;
for (let y = 0; y < 31; y++) {
if (Math.random() < glitchProbability) {
const offset = Math.floor((Math.random() - 0.5) * maxOffset * 2);
shiftScanline(imageData, y, offset);
}
}
context.putImageData(imageData, 0, 0);
}
// Shift a horizontal scanline by offset pixels (with wrapping)
function shiftScanline(imageData, y, offset) {
const width = imageData.width;
const rowStart = y * width * 4;
const rowData = new Uint8ClampedArray(width * 4);
// Copy row
for (let i = 0; i < width * 4; i++) {
rowData[i] = imageData.data[rowStart + i];
}
// Shift and wrap
for (let x = 0; x < width; x++) {
let sourceX = (x - offset + width) % width;
let destIdx = rowStart + x * 4;
let srcIdx = sourceX * 4;
imageData.data[destIdx] = rowData[srcIdx];
imageData.data[destIdx + 1] = rowData[srcIdx + 1];
imageData.data[destIdx + 2] = rowData[srcIdx + 2];
imageData.data[destIdx + 3] = rowData[srcIdx + 3];
}
}
// Apply scanline effect (CRT-style horizontal lines)
function applyScanlineEffect(context, animState) {
const intensity = parseFloat(controls.scanlineIntensity.value);
const speed = parseFloat(controls.scanlineSpeed.value);
// Create overlay with scanlines
context.globalCompositeOperation = "multiply";
context.fillStyle = "rgba(0, 0, 0, " + intensity + ")";
// Animate scanline position
const offset = (animState.progress * speed * 31) % 2;
for (let y = offset; y < 31; y += 2) {
context.fillRect(0, Math.floor(y), 88, 1);
}
context.globalCompositeOperation = "source-over";
}
// Apply RGB split/chromatic aberration effect
function applyRgbSplitEffect(context, animState) {
const intensity = parseFloat(controls.rgbSplitIntensity.value);
const imageData = context.getImageData(0, 0, 88, 31);
const result = context.createImageData(88, 31);
// Oscillating offset
const phase = Math.sin(animState.getPhase(1.0));
const offsetX = Math.round(phase * intensity);
for (let y = 0; y < 31; y++) {
for (let x = 0; x < 88; x++) {
const idx = (y * 88 + x) * 4;
// Red channel - shift left
const redX = Math.max(0, Math.min(87, x - offsetX));
const redIdx = (y * 88 + redX) * 4;
result.data[idx] = imageData.data[redIdx];
// Green channel - no shift
result.data[idx + 1] = imageData.data[idx + 1];
// Blue channel - shift right
const blueX = Math.max(0, Math.min(87, x + offsetX));
const blueIdx = (y * 88 + blueX) * 4;
result.data[idx + 2] = imageData.data[blueIdx + 2];
// Alpha channel
result.data[idx + 3] = imageData.data[idx + 3];
}
}
context.putImageData(result, 0, 0);
}
// Apply noise/static effect
function applyNoiseEffect(context, animState) {
const intensity = parseFloat(controls.noiseIntensity.value);
const imageData = context.getImageData(0, 0, 88, 31);
for (let i = 0; i < imageData.data.length; i += 4) {
// Random noise value
const noise = (Math.random() - 0.5) * 255 * intensity;
imageData.data[i] = Math.max(
0,
Math.min(255, imageData.data[i] + noise),
);
imageData.data[i + 1] = Math.max(
0,
Math.min(255, imageData.data[i + 1] + noise),
);
imageData.data[i + 2] = Math.max(
0,
Math.min(255, imageData.data[i + 2] + noise),
);
// Alpha unchanged
}
context.putImageData(imageData, 0, 0);
}
// Animated preview state
let previewAnimationId = null;
// Update preview (static or animated based on settings)
function updatePreview() {
if (hasAnimationsEnabled()) {
startAnimatedPreview();
} else {
stopAnimatedPreview();
drawToContext(ctx);
}
updateDownloadButtonLabel();
}
// Start animated preview loop
function startAnimatedPreview() {
stopAnimatedPreview(); // Clear any existing
let frameNum = 0;
let lastFrameTime = performance.now();
const frameDelay = 1000 / ANIMATION_CONFIG.fps; // ms per frame
const animate = (currentTime) => {
const elapsed = currentTime - lastFrameTime;
// Only advance frame if enough time has passed
if (elapsed >= frameDelay) {
const animState = new AnimationState(
frameNum,
ANIMATION_CONFIG.totalFrames,
);
drawToContext(ctx, animState);
frameNum = (frameNum + 1) % ANIMATION_CONFIG.totalFrames;
lastFrameTime = currentTime - (elapsed % frameDelay); // Carry over extra time
}
previewAnimationId = requestAnimationFrame(animate);
};
previewAnimationId = requestAnimationFrame(animate);
}
// Stop animated preview
function stopAnimatedPreview() {
if (previewAnimationId) {
cancelAnimationFrame(previewAnimationId);
previewAnimationId = null;
}
}
// Main draw function
function drawButton() {
updatePreview();
}
// Check if any animations are enabled
function hasAnimationsEnabled() {
return !!(
controls.animateTextWave?.checked ||
controls.animateTextWave2?.checked ||
controls.animateBgRainbow?.checked ||
controls.animateBgRainbowGradient?.checked ||
controls.animateTextRainbow?.checked ||
controls.animateTextRainbow2?.checked ||
controls.animateGlitch?.checked ||
controls.animatePulse?.checked ||
controls.animateShimmer?.checked ||
controls.animateScanline?.checked ||
controls.animateRgbSplit?.checked ||
controls.animateNoise?.checked ||
controls.animateRotate?.checked
);
}
// Update download button label
function updateDownloadButtonLabel() {
const btn = document.getElementById("download-button");
btn.textContent = "Download GIF";
}
// Export as animated GIF
async function exportAsGif() {
const downloadBtn = document.getElementById("download-button");
const originalText = downloadBtn.textContent;
downloadBtn.disabled = true;
downloadBtn.textContent = "Generating GIF...";
try {
// Create temporary canvas for frame generation
const frameCanvas = document.createElement("canvas");
frameCanvas.width = 88;
frameCanvas.height = 31;
const frameCtx = frameCanvas.getContext("2d");
// Initialize gif.js
const gif = new GIF({
workers: 2,
quality: 10,
workerScript: "/js/gif.worker.js",
width: 88,
height: 31,
});
// Generate frames
const totalFrames = ANIMATION_CONFIG.totalFrames;
for (let i = 0; i < totalFrames; i++) {
const animState = new AnimationState(i, totalFrames);
drawToContext(frameCtx, animState);
// Add frame to GIF (delay in ms)
gif.addFrame(frameCtx, {
delay: 1000 / ANIMATION_CONFIG.fps,
copy: true,
});
// Update progress
const progress = Math.round((i / totalFrames) * 100);
downloadBtn.textContent = `Generating: ${progress}%`;
// Yield to browser to keep UI responsive
if (i % 5 === 0) {
await new Promise((resolve) => setTimeout(resolve, 0));
}
}
// Render GIF
gif.on("finished", (blob) => {
// Download
const link = document.createElement("a");
link.download = "button-88x31.gif";
link.href = URL.createObjectURL(blob);
link.click();
// Cleanup
URL.revokeObjectURL(link.href);
downloadBtn.disabled = false;
downloadBtn.textContent = originalText;
});
gif.on("progress", (progress) => {
const percent = Math.round(progress * 100);
downloadBtn.textContent = `Encoding: ${percent}%`;
});
gif.render();
} catch (error) {
console.error("Error generating GIF:", error);
downloadBtn.disabled = false;
downloadBtn.textContent = originalText;
alert("Error generating GIF. Please try again.");
}
}
// Download function
document
.getElementById("download-button")
.addEventListener("click", async () => {
await exportAsGif();
});
// Preset buttons
document.getElementById("preset-random").addEventListener("click", () => {
const randomColor = () =>
"#" +
Math.floor(Math.random() * 16777215)
.toString(16)
.padStart(6, "0");
// Random background
controls.bgType.value = ["solid", "gradient", "texture"][
Math.floor(Math.random() * 3)
];
controls.bgColor.value = randomColor();
controls.gradientColor1.value = randomColor();
controls.gradientColor2.value = randomColor();
controls.gradientAngle.value = Math.floor(Math.random() * 360);
controls.textureColor1.value = randomColor();
controls.textureColor2.value = randomColor();
controls.textureType.value = [
"dots",
"grid",
"diagonal",
"checkerboard",
"noise",
"stars",
][Math.floor(Math.random() * 6)];
// Random text 1 color (50% chance of gradient)
controls.textColorType.value = Math.random() > 0.5 ? "gradient" : "solid";
controls.textColor.value = randomColor();
controls.textGradientColor1.value = randomColor();
controls.textGradientColor2.value = randomColor();
controls.textGradientAngle.value = Math.floor(Math.random() * 360);
// Random text 2 color (50% chance of gradient)
controls.text2ColorType.value =
Math.random() > 0.5 ? "gradient" : "solid";
controls.text2Color.value = randomColor();
controls.text2GradientColor1.value = randomColor();
controls.text2GradientColor2.value = randomColor();
controls.text2GradientAngle.value = Math.floor(Math.random() * 360);
// Random border
controls.borderColor.value = randomColor();
controls.borderWidth.value = Math.floor(Math.random() * 6);
controls.borderStyle.value = ["solid", "inset", "outset", "ridge"][
Math.floor(Math.random() * 4)
];
// Random text styles
controls.fontBold.checked = Math.random() > 0.5;
controls.fontItalic.checked = Math.random() > 0.5;
controls.fontBold2.checked = Math.random() > 0.5;
controls.fontItalic2.checked = Math.random() > 0.5;
// Update displays
updateValueDisplay("gradient-angle", controls.gradientAngle.value);
updateValueDisplay(
"text-gradient-angle",
controls.textGradientAngle.value,
);
updateValueDisplay(
"text2-gradient-angle",
controls.text2GradientAngle.value,
);
updateValueDisplay("border-width", controls.borderWidth.value);
controls.bgType.dispatchEvent(new Event("change"));
controls.textColorType.dispatchEvent(new Event("change"));
controls.text2ColorType.dispatchEvent(new Event("change"));
drawButton();
});
document.getElementById("preset-classic").addEventListener("click", () => {
// Classic 90s web button style
controls.bgType.value = "gradient";
controls.gradientColor1.value = "#6e6e6eff";
controls.gradientColor2.value = "#979797";
controls.gradientAngle.value = 90;
controls.textColorType.value = "solid";
controls.textColor.value = "#000000";
controls.text2ColorType.value = "solid";
controls.text2Color.value = "#000";
controls.borderWidth.value = 2;
controls.borderColor.value = "#000000";
controls.borderStyle.value = "outset";
controls.fontFamily.value = "VT323";
controls.fontFamily2.value = "VT323";
controls.fontBold.checked = false;
controls.fontBold2.checked = false;
controls.fontItalic.checked = false;
controls.fontItalic2.checked = false;
//controls.text.value = "RITUAL.SH";
//controls.text2.value = "FREE THE WEB";
controls.textEnabled.checked = true;
controls.text2Enabled.checked = true;
controls.fontSize.value = 12;
controls.fontSize2.value = 8;
controls.textY.value = 50;
controls.text2Y.value = 65;
updateValueDisplay("font-size", 12);
updateValueDisplay("font-size2", 8);
updateValueDisplay("gradient-angle", 90);
updateValueDisplay("text-y", 35);
updateValueDisplay("text2-y", 65);
controls.bgType.dispatchEvent(new Event("change"));
controls.textColorType.dispatchEvent(new Event("change"));
controls.text2ColorType.dispatchEvent(new Event("change"));
drawButton();
});
document.getElementById("preset-modern").addEventListener("click", () => {
controls.bgType.value = "gradient";
controls.gradientColor1.value = "#0a0a0a";
controls.gradientColor2.value = "#1a0a2e";
controls.gradientAngle.value = 135;
controls.textColorType.value = "gradient";
controls.textGradientColor1.value = "#00ffaa";
controls.textGradientColor2.value = "#00ffff";
controls.textGradientAngle.value = 90;
controls.text2ColorType.value = "gradient";
controls.text2GradientColor1.value = "#ff00ff";
controls.text2GradientColor2.value = "#ff6600";
controls.text2GradientAngle.value = 0;
controls.borderWidth.value = 1;
controls.borderColor.value = "#00ffaa";
controls.borderStyle.value = "solid";
controls.fontFamily.value = "Roboto Mono";
controls.fontFamily2.value = "Roboto Mono";
controls.fontBold.checked = true;
controls.fontBold2.checked = false;
controls.fontItalic.checked = false;
controls.fontItalic2.checked = false;
//controls.text.value = "RITUAL.SH";
//controls.text2.value = "EST. 2024";
controls.textEnabled.checked = true;
controls.text2Enabled.checked = true;
controls.fontSize.value = 11;
controls.fontSize2.value = 9;
controls.textY.value = 35;
controls.text2Y.value = 65;
updateValueDisplay("font-size", 11);
updateValueDisplay("font-size2", 9);
updateValueDisplay("gradient-angle", 135);
updateValueDisplay("text-gradient-angle", 90);
updateValueDisplay("text2-gradient-angle", 0);
updateValueDisplay("text-y", 35);
updateValueDisplay("text2-y", 65);
controls.textColorType.dispatchEvent(new Event("change"));
controls.text2ColorType.dispatchEvent(new Event("change"));
controls.bgType.dispatchEvent(new Event("change"));
drawButton();
});
// Add event listeners to all controls
Object.values(controls).forEach((control) => {
if (control) {
control.addEventListener("input", drawButton);
control.addEventListener("change", drawButton);
if (control.type === "range") {
control.addEventListener("input", (e) => {
updateValueDisplay(e.target.id, e.target.value);
});
}
}
});
// Animation control show/hide listeners
if (controls.animateTextWave) {
controls.animateTextWave.addEventListener("change", () => {
document.getElementById("wave-controls").style.display = controls
.animateTextWave.checked
? "block"
: "none";
});
}
if (controls.animateTextWave2) {
controls.animateTextWave2.addEventListener("change", () => {
document.getElementById("wave-controls2").style.display = controls
.animateTextWave2.checked
? "block"
: "none";
});
}
if (controls.animateBgRainbow) {
controls.animateBgRainbow.addEventListener("change", () => {
document.getElementById("rainbow-bg-controls").style.display = controls
.animateBgRainbow.checked
? "block"
: "none";
});
}
if (controls.animateTextRainbow) {
controls.animateTextRainbow.addEventListener("change", () => {
document.getElementById("rainbow-text-controls").style.display =
controls.animateTextRainbow.checked ? "block" : "none";
});
}
if (controls.animateTextRainbow2) {
controls.animateTextRainbow2.addEventListener("change", () => {
document.getElementById("rainbow-text2-controls").style.display =
controls.animateTextRainbow2.checked ? "block" : "none";
});
}
if (controls.animateGlitch) {
controls.animateGlitch.addEventListener("change", () => {
document.getElementById("glitch-controls").style.display = controls
.animateGlitch.checked
? "block"
: "none";
});
}
if (controls.animatePulse) {
controls.animatePulse.addEventListener("change", () => {
document.getElementById("pulse-controls").style.display = controls
.animatePulse.checked
? "block"
: "none";
});
}
if (controls.animateScanline) {
controls.animateScanline.addEventListener("change", () => {
document.getElementById("scanline-controls").style.display = controls
.animateScanline.checked
? "block"
: "none";
});
}
if (controls.animateRgbSplit) {
controls.animateRgbSplit.addEventListener("change", () => {
document.getElementById("rgb-split-controls").style.display = controls
.animateRgbSplit.checked
? "block"
: "none";
});
}
if (controls.animateNoise) {
controls.animateNoise.addEventListener("change", () => {
document.getElementById("noise-controls").style.display = controls
.animateNoise.checked
? "block"
: "none";
});
}
if (controls.animateRotate) {
controls.animateRotate.addEventListener("change", () => {
document.getElementById("rotate-controls").style.display = controls
.animateRotate.checked
? "block"
: "none";
});
}
// Initial draw
drawButton();
} // end setupButtonGenerator
})();