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Fixed flipping and emojis

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This commit is contained in:
CBenni 2018-01-03 14:04:57 +01:00
parent 7c6c7a4931
commit c4a253b3ae
2 changed files with 38 additions and 80 deletions
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108
imageex.js
View file

@ -1,3 +1,4 @@
const _ = require('lodash');
const fs = require('fs');
const got = require('got');
const Canvas = require('canvas');
@ -31,6 +32,24 @@ function createCanvas(width, height) {
return canvas;
}
function _drawImage(ctx, img, x, y, args = {}) {
if (args.transform) {
ctx.save();
_.each(args.transform, (val, prop) => {
console.log('Transform: ', prop, val);
ctx[prop](...val);
});
}
if (args.sx !== undefined || args.sy !== undefined || args.swidth !== undefined || args.sheight !== undefined) {
ctx.drawImage(img, args.sx, args.sy, args.swidth, args.sheight, x, y, args.width || args.swidth, args.height || args.sheight);
} else {
ctx.drawImage(img, x, y, args.width, args.height);
}
if (args.transform) {
ctx.restore();
}
}
class ImageEx {
constructor(uri) {
this.uri = uri;
@ -99,7 +118,7 @@ class ImageEx {
const canvas = createCanvas(this.width, this.height);
const ctx = canvas.getContext('2d');
let saved;
this.spriteSheet = createCanvas(this.width * this.frames.length, this.height);
this.spriteSheet = createCanvas((this.width + 1) * this.frames.length, this.height);
const spriteSheetCtx = this.spriteSheet.getContext('2d');
for (let i = 0; i < this.frames.length; ++i) {
const frame = this.frames[i];
@ -120,7 +139,7 @@ class ImageEx {
// draw current frame
ctx.drawImage(frame.buffer, frame.x, frame.y);
// draw the frame onto the sprite sheet
spriteSheetCtx.drawImage(canvas, this.width * i, 0);
spriteSheetCtx.drawImage(canvas, (this.width + 1) * i, 0);
}
}
@ -136,7 +155,7 @@ class ImageEx {
}
drawFrame(ctx, frameNum, x, y, args = {}) {
const sx = frameNum * this.width + (args.sx || 0);
const sx = frameNum * (this.width + 1) + (args.sx || 0);
const sy = args.sy || 0;
const swidth = Math.min(args.swidth || this.width, this.width) - (args.sx || 0);
const sheight = args.sheight || this.height;
@ -151,14 +170,16 @@ class ImageEx {
console.log('w', args.width);
console.log('h', args.height);
ctx.drawImage(this.spriteSheet, sx, sy, swidth, sheight, x, y, args.width || swidth, args.height || sheight);
_drawImage(ctx, this.spriteSheet, x, y, {
sx, sy, swidth, sheight, width: args.width || swidth, height: args.height || sheight, transform: args.transform
});
// ctx.drawImage(this.spriteSheet, 0, 0, 112, 112, 0, 0, 112, 112)
}
}
class CanvasEx {
constructor(width, height) {
this.width = width;
this.height = height;
this.width = Math.round(width);
this.height = Math.round(height);
this.frames = [];
this.totalDuration = Infinity;
}
@ -197,7 +218,9 @@ class CanvasEx {
// console.log(`Adding frame ${i}:`, frame);
this.addFrame(null, frame.delay);
if (this.frames.length > 0) {
this.frames[i].ctx.drawImage(this.frames[0].canvas, 0, 0);
this.frames[i].ctx.antialias = 'none';
_drawImage(this.frames[i].ctx, this.frames[0].canvas, 0, 0, { width: this.width, height: this.height });
this.frames[i].ctx.antialias = 'default';
}
}
for (let i = 0; i < img.frames.length; ++i) {
@ -205,11 +228,10 @@ class CanvasEx {
// draw the i-th source frame to the i-th target frame
img.drawFrame(this.frames[i].ctx, i, x, y, args);
}
console.log('Done drawing animated image, CanvasEx is now', this);
} else {
// we are drawing a static image on top of a (possibly animated) image.
// for each frame, just draw, nothing fancy.
if (img.frames) {
if (img.frames) { // eslint-disable-line no-lonely-if
// the image cant have more than one frame, and if it has 0, we dont need to do anything at all
if (img.frames.length === 1) {
// if theres no frames at all, add one
@ -222,25 +244,14 @@ class CanvasEx {
}
} else {
for (let i = 0; i < this.frames.length; ++i) {
this.drawImage(this.frames[i].ctx, img, x, y, args);
_drawImage(this.frames[i].ctx, img, x, y, args);
}
}
console.log('Done drawing static image, CanvasEx is now', this);
}
}
drawFrame(ctx, frameNum, x, y, args = {}) {
// console.log(`Drawing frame ${frameNum} of`, this)
// ctx.drawImage(this.frames[frameNum].canvas, x, y);
this.drawImage(ctx, this.frames[frameNum].canvas, x, y, args);
}
_drawImage(ctx, img, x, y, args = {}) {
if (args.sx !== undefined || args.sy !== undefined || args.swidth !== undefined || args.sheight !== undefined) {
ctx.drawImage(img, args.sx, args.sy, args.swidth, args.sheight, x, y, args.width, args.height);
} else {
ctx.drawImage(img, x, y, args.width, args.height);
}
_drawImage(ctx, this.frames[frameNum].canvas, x, y, args);
}
export(outStream) {
@ -286,56 +297,3 @@ module.exports = {
CanvasEx,
ImageEx
};
/*
// const img = new ImageEx("https://cors-anywhere.herokuapp.com/https://cdn.betterttv.net/emote/554da1a289d53f2d12781907/3x");
const img = new ImageEx('https://cors-anywhere.herokuapp.com/https://cdn.discordapp.com/emojis/393563453824040983.gif');
const _canvas = document.getElementById('c');
const _ctx = _canvas.getContext('2d');
const img2 = new ImageEx('https://rawgit.com/CBenni/beebot/master/resources/SnowGlobe.png');
const _cnv = new CanvasEx(128, 128);
img.loaded.then(() => {
_cnv.drawImage(img, 0, 0);
// img.drawFrame(_ctx, 0, 0, 0)
return img2.loaded;
}).then(() => {
_cnv.drawImage(img2, 0, 0, { width: 128, height: 128 });
}).then(() => {
console.log('Drawing CanvasEx to screen', _cnv);
_cnv.drawFrame(_ctx, 0, 0, 0);
console.log('Starting gif render');
const GifEncoder = new GIF({
workers: 2,
quality: 10,
transparent: 'rgba(0,0,0,0)'
});
for (let i = 0; i < _cnv.frames.length; ++i) {
const frame = _cnv.frames[i];
console.log(`Rendering frame ${i}`);
GifEncoder.addFrame(frame.canvas, { delay: frame.delay });
}
GifEncoder.on('finished', blob => {
console.log('Done rendering!', URL.createObjectURL(blob));
document.getElementById('i').src = URL.createObjectURL(blob);
});
GifEncoder.render();
});
let curFrm = 0;
setInterval(() => {
_ctx.clearRect(0, 0, 200, 200);
_cnv.drawFrame(_ctx, curFrm++ % _cnv.frames.length, 0, 0);
}, 100);
/* img2.loaded.then(() => {
_ctx.drawImage(img2.spriteSheet, 0, 100)
})
img.loaded.then(()=>_ctx.drawImage(img.spriteSheet,0,0)) */

10
index.js
View file

@ -24,7 +24,7 @@ const { templates } = config;
_.each(templates, (template, templateName) => {
const data = templates[templateName];
all(data, templatePart => {
template.image = new ImageEx(templatePart.src);
templatePart.image = new ImageEx(templatePart.src);
});
});
@ -176,7 +176,8 @@ function findEmoji(str) {
unicodeEmoji = {
name,
id: name,
url: `${emoji.base + emoji.size}/${name}${emoji.ext}`
url: `${emoji.base + emoji.size}/${name}${emoji.ext}`,
ext: emoji.ext
};
return false;
});
@ -229,6 +230,7 @@ client.on('message', async message => {
}
const templateData = templates[command];
all(templateData, template => { // eslint-disable-line no-loop-func
console.log('Drawing template', template);
result = render(template, result, null, direction === '\\');
});
}
@ -251,7 +253,5 @@ client.on('message', async message => {
});
process.on('uncaughtException', exception => {
console.log(exception); // to see your exception details in the console
// if you are on production, maybe you can send the exception details to your
// email as well ?
console.log(exception);
});