cleaned old output on initialization

downloader.mjs

@@ -50,16 +50,14 @@ function downloadImage(time_string, filepath) {
 
 export async function initImages(count) {
     let files = fs.readdirSync('images/raw');
+    for(let file of files) {
+        fs.unlinkSync(`images/raw/${file}`);
+    }
     let downloaded = 0;
     let i = 0;
     while(downloaded < count) {
         let time_string = getTimeString(i);
         let filename = `images/raw/${time_string}.png`;
-        if (files.includes(`${time_string}.png`)) {
-            downloaded++;
-            i++;
-            continue;
-        }
         try {
             await downloadImage(time_string, filename);
             downloaded++;

index.mjs

@@ -1,7 +1,7 @@
 import { initImages, updateImages } from './downloader.mjs';
 import { createVideo } from './video.mjs';
 
-const IMAGE_COUNT = 5;
+const IMAGE_COUNT = 12;
 
 initImages(IMAGE_COUNT).then(() => {
     console.log('Downloaded initial images successfully');

video.mjs

@@ -37,6 +37,12 @@ async function generateFinalImages() {
 
 export async function createVideo() {
     await generateFinalImages();
+    //remove video
+    try {
+        fs.unlinkSync('out/output.mp4');
+    } catch (error) {
+        console.log('No video to delete');
+    }
     //run the command ffmpeg -framerate 5 -i %d.png -c:v libx264 -r 30 output.mp4
     return new Promise((resolve, reject) => {
         exec('ffmpeg -framerate 5 -i images/final/%d.png -c:v libx264 -r 30 out/output.mp4', (err, stdout, stderr) => {