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.env
# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
.DS_Store
dist
dist-ssr
coverage
*.local
/cypress/videos/
/cypress/screenshots/
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?
*.tsbuildinfo

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{
"recommendations": ["Vue.volar"]
}

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# alttp-randomizer-frontend
This template should help get you started developing with Vue 3 in Vite.
## Recommended IDE Setup
[VSCode](https://code.visualstudio.com/) + [Volar](https://marketplace.visualstudio.com/items?itemName=Vue.volar) (and disable Vetur).
## Customize configuration
See [Vite Configuration Reference](https://vite.dev/config/).
## Project Setup
```sh
npm install
```
### Compile and Hot-Reload for Development
```sh
npm run dev
```
### Compile and Minify for Production
```sh
npm run build
```

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<!DOCTYPE html>
<html lang="">
<head>
<meta charset="UTF-8">
<link rel="icon" href="/favicon.ico">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Vite App</title>
</head>
<body>
<div id="app"></div>
<script type="module" src="/src/main.js"></script>
</body>
</html>

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{
"compilerOptions": {
"paths": {
"@/*": ["./src/*"]
}
},
"exclude": ["node_modules", "dist"]
}

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{
"name": "alttp-randomizer-frontend",
"version": "0.0.0",
"private": true,
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build",
"preview": "vite preview"
},
"dependencies": {
"axios": "^1.8.1",
"bootstrap": "^5.3.3",
"bps": "^2.0.1",
"center-align": "^1.0.1",
"crc-32": "^1.2.2",
"js-base64": "^3.7.7",
"localforage": "^1.10.0",
"vue": "^3.5.13",
"vue-router": "^4.5.0"
},
"devDependencies": {
"@vitejs/plugin-vue": "^5.2.1",
"vite": "^6.1.0",
"vite-plugin-vue-devtools": "^7.7.2"
}
}

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<script setup>
import { RouterLink, RouterView } from "vue-router";
</script>
<template>
<header>
<div class="wrapper">
</div>
</header>
<RouterView />
</template>
<style scoped>
</style>

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import center from "center-align";
export default class ZSPR {
constructor(buffer) {
this.patch = buffer;
const dec = new TextDecoder("utf-8");
const header = dec.decode(buffer.subarray(0, 4));
this.valid = (header == 'ZSPR');
if (this.valid) {
this._parse();
}
}
_parse() {
this.gfxOffset = (this.patch[12] << 24) | (this.patch[11] << 16) | (this.patch[10] << 8) | this.patch[9];
this.palOffset = (this.patch[18] << 24) | (this.patch[17] << 16) | (this.patch[16] << 8) | this.patch[15];
const metadataOffset = 0x1D;
const dec8 = new TextDecoder("utf-8");
const dec16 = new TextDecoder("utf-16");
var start = metadataOffset;
var index = start;
while (index < this.gfxOffset) {
if (this.patch[index] == 0 && this.patch[index + 1] == 0) {
this.spriteName = dec16.decode(this.patch.subarray(start, index));
break;
}
index += 2;
}
index += 2;
start = index;
while (index < this.gfxOffset) {
if (this.patch[index] == 0 && this.patch[index + 1] == 0) {
this.spriteAuthor = dec16.decode(this.patch.subarray(start, index));
break;
}
index += 2;
}
index += 2;
start = index;
while (index < this.gfxOffset) {
if (this.patch[index] == 0) {
this.spriteAuthorShort = dec8.decode(this.patch.subarray(start, index));
break;
}
index += 1;
}
}
apply(rom) {
if (!this.valid) {
throw "Invalid Patch";
}
if (this.gfxOffset != 0xFFFFFFFF) {
rom.set(this.patch.subarray(this.gfxOffset, this.gfxOffset + 0x7000), 0x080000);
}
rom.set(this.patch.subarray(this.palOffset, this.palOffset + 120), 0x0DD308);
rom.set(this.patch.subarray(this.palOffset + 120, this.palOffset + 124), 0x0DEDF5);
if (rom[0x118000] === 0x02 && rom[0x118001] === 0x37
&& rom[0x11801E] === 0x02 && rom[0x11801F] === 0x37) {
var author = center(this.spriteAuthorShort.substring(0, 28), 28);
if (author.length == 27) {
author += " ";
}
const [tophalf, bottomhalf] = format_author(author);
rom.set(tophalf, 0x118002);
rom.set(bottomhalf, 0x11801F);
}
return rom;
}
}
function format_author(name) {
const tophalf = [];
const bothalf = [];
for (var chr of name.split("")) {
if (chr >= "0" && chr <= "9") {
tophalf.push(chr.charCodeAt(0) - "0".charCodeAt(0) + 0x53);
bothalf.push(chr.charCodeAt(0) - "0".charCodeAt(0) + 0x79);
} else if (chr >= "A" && chr <= "Z") {
tophalf.push(chr.charCodeAt(0) - "A".charCodeAt(0) + 0x5D);
bothalf.push(chr.charCodeAt(0) - "A".charCodeAt(0) + 0x83);
} else if (chr >= "a" && chr <= "z") {
tophalf.push(chr.charCodeAt(0) - "a".charCodeAt(0) + 0x5D);
bothalf.push(chr.charCodeAt(0) - "a".charCodeAt(0) + 0x83);
} else if (chr == "'") {
tophalf.push(0x77);
bothalf.push(0x9D);
} else if (chr == ".") {
tophalf.push(0xA0);
bothalf.push(0xC0);
} else if (chr == "/") {
tophalf.push(0xA2);
bothalf.push(0xC2);
} else if (chr == ":") {
tophalf.push(0xA3);
bothalf.push(0xC3);
} else if (chr == "_") {
tophalf.push(0xA6);
bothalf.push(0xC6);
} else {
tophalf.push(0x9F);
bothalf.push(0x9F);
}
}
return [new Uint8Array(tophalf), new Uint8Array(bothalf)];
}

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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 261.76 226.69"><path d="M161.096.001l-30.225 52.351L100.647.001H-.005l130.877 226.688L261.749.001z" fill="#41b883"/><path d="M161.096.001l-30.225 52.351L100.647.001H52.346l78.526 136.01L209.398.001z" fill="#34495e"/></svg>

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#app {
max-width: 30rem;
margin: 0 auto;
}
.invalid {
text-align: center;
color: red;
}

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<script>
import { defineComponent } from "vue";
import SpritePicker from "@/components/SpritePicker.vue";
import { Base64 } from "js-base64";
import * as bps from "bps";
import CRC32 from "crc-32";
import localforage from "localforage";
import axios from "axios";
export default defineComponent({
components: {
SpritePicker,
},
data() {
return {
rom_checksum: "3322EFFC",
baserom: null,
baserom_error: null,
sprite: null,
patch: null,
error: null,
};
},
props: {
id: "",
},
async mounted() {
document.title = `ALttPRandomizer: ${this.id}`;
const file = await localforage.getItem("baserom");
if (file) {
const dataTransfer = new DataTransfer();
dataTransfer.items.add(file);
document.getElementById("rom-input").files = dataTransfer.files;
this.uploadBaseRom(file);
}
const response = await axios.get(`/seed/${this.id}`);
if (response && response.data && response.data["patch.bps"]) {
const seedData = response.data;
const patchArray = Base64.toUint8Array(seedData["patch.bps"]);
try {
const { instructions, _ } = bps.parse(patchArray);
const sourceChecksum = instructions.sourceChecksum.toString(16).toUpperCase();
if (sourceChecksum == this.rom_checksum) {
this.patch = instructions;
} else {
this.error = "Patch does not specify correct source checksum.";
}
} catch (error) {
console.log(error);
this.error = "Error parsing patch.";
}
} else {
console.log(response.data);
this.error = "Error loading seed.";
}
},
computed: {
permalink() {
return `/seed/${this.id}`;
},
},
methods: {
uploadBaseRom(file) {
if (!file) {
this.baserom_error = null;
this.baserom = null;
return;
}
const reader = new FileReader();
reader.onload = function() {
const buffer = new Uint8Array(reader.result);
const crc = (CRC32.buf(buffer, 0) >>> 0).toString(16).toUpperCase();
if (crc != this.rom_checksum) {
this.baserom_error = `Expected CRC ${this.rom_checksum}, but got ${crc}`;
this.baserom = null;
return;
}
this.baserom_error = null;
this.baserom = buffer;
localforage.setItem("baserom", file);
}.bind(this);
reader.readAsArrayBuffer(file);
},
spriteUpdate(sprite) {
this.sprite = sprite;
},
async patchRom() {
var rom = bps.apply(this.patch, this.baserom);
if (this.sprite) {
this.sprite.apply(rom);
}
// Fix Checksum
const sum = rom.reduce(function(sum, mbyte, i) {
if (i >= 0x7fdc && i < 0x7fe0) {
return sum;
}
return sum + mbyte;
});
const checksum = (sum + 0x01FE) & 0xFFFF;
const inverse = checksum ^ 0xFFFF;
rom[0x7FDC] = inverse & 0xFF;
rom[0x7FDD] = inverse >> 8;
rom[0x7FDE] = checksum & 0xFF;
rom[0x7FDF] = checksum >> 8;
const blob = new Blob([rom], { type: 'octet/stream' });
const link = document.getElementById('downloader');
link.href = URL.createObjectURL(blob);
link.download = `GK_${this.id}.sfc`;
link.click();
}
}
});
</script>
<template>
<div class="card content-div mt-3 mb-3">
<div class="card-header">
Permalink: <a :href="permalink">{{ permalink }}</a>
</div>
<div v-if="error" class="card-header">
{{ error }}
</div>
<ul class="list-group list-group-flush">
<li class="list-group-item">
<div class="mb-2">
<label for="rom-input" class="form-label">
The Legend of Zelda: A Link to the Past (JP 1.0) Rom:
</label>
<input id="rom-input" class="form-control" type="file" accept=".sfc,.smc" @change="uploadBaseRom($event.target.files[0])" />
<div v-if="baserom_error" class="invalid">
{{ baserom_error }}
</div>
</div>
</li>
<li class="list-group-item">
<div class="mb-2">
<SpritePicker @spriteUpdate="spriteUpdate" />
</div>
</li>
<li class="list-group-item">
<button type="submit" class="btn btn-primary submit-btn" :disabled="!baserom || !patch" @click="patchRom">
Download Seed!
</button>
<a id="downloader" style="display: none;" />
</li>
</ul>
</div>
</template>

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<script>
import { defineComponent } from 'vue';
import ZSPR from "@/ZSPR.js";
import localforage from "localforage";
export default defineComponent({
data() {
return {
sprite: null,
sprite_error: null,
};
},
async mounted() {
},
computed: {
},
methods: {
uploadSprite(file) {
console.log(file);
if (!file) {
this.sprite_error = null;
this.sprite = null;
return;
}
const reader = new FileReader();
reader.onload = function() {
const buffer = new Uint8Array(reader.result);
const zspr = new ZSPR(buffer);
if (!zspr.valid) {
this.sprite_error = "Invalid sprite file";
this.sprite = null;
return;
}
this.sprite_error = null;
this.sprite = zspr;
localforage.setItem("sprite", file);
this.$emit("spriteUpdate", this.sprite);
}.bind(this);
reader.readAsArrayBuffer(file);
},
}
});
</script>
<template>
<div>
<label for="sprite-input" class="form-label">
Custom Sprite:
<template v-if="sprite">
{{ sprite.spriteName }} by {{ sprite.spriteAuthor }}
</template>
</label>
<input id="sprite-input" class="form-control" type="file" accept=".zspr" @change="uploadSprite($event.target.files[0])" />
<div v-if="sprite_error" class="invalid">
{{ sprite_error }}
</div>
</div>
</template>

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import { createApp } from "vue";
import App from "./App.vue";
import router from "./router";
import "bootstrap/dist/css/bootstrap.min.css";
import "bootstrap";
import "./assets/main.css";
import axios from "axios";
axios.defaults.baseURL = import.meta.env.VITE_BACKEND_URL;
const app = createApp(App)
app.use(router)
app.mount('#app')

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import { createRouter, createWebHistory } from "vue-router";
import SeedView from "@/views/SeedView.vue";
const router = createRouter({
history: createWebHistory(import.meta.env.BASE_URL),
routes: [
{
path: '/seed/:id',
name: 'game',
component: SeedView,
},
],
});
export default router;

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<script>
import { defineComponent } from 'vue';
import Seed from '../components/Seed.vue';
export default defineComponent({
components: {
Seed,
},
});
</script>
<template>
<Seed :id="$route.params.id" />
</template>

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import { fileURLToPath, URL } from 'node:url'
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueDevTools from 'vite-plugin-vue-devtools'
// https://vite.dev/config/
export default defineConfig({
plugins: [
vue(),
vueDevTools(),
],
resolve: {
alias: {
'@': fileURLToPath(new URL('./src', import.meta.url))
},
},
})