288 lines
14 KiB
HTML
288 lines
14 KiB
HTML
<!DOCTYPE html>
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<html lang="en" class="h-100">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Name All the Cities</title>
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<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH" crossorigin="anonymous">
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</head>
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<body class="h-100 d-flex flex-column">
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<div v-scope @vue:mounted="mounted" class="container vh-100">
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<h1>Name All the Cities</h1>
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<div class="mb-3">
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<label class="form-label">State:</label>
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<div class="btn-toolbar">
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<div class="input-group me-3 flex-grow-1">
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<select class="form-select" v-model="state_name" :disabled="launched">
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<option value="" selected>Select a state…</option>
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<option v-for="state in states">{{ state }}</option>
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</select>
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<button class="btn btn-primary" type="button" @click="launch" :disabled="launched || !state_name">Play</button>
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</div>
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<div class="btn-group">
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<button class="btn btn-secondary" type="button" @click="save" :disabled="!launched">Save</button>
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<label for="restore-input" class="btn btn-success" :class="{disabled: launched}">Restore</label>
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</div>
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<input id="restore-input" type="file" @input="restore" style="display: none;"></button>
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</div>
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</div>
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<div class="row" v-show="launched">
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<div class="col-4">
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<div class="mb-3">
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<label for="city-guess" class="form-label">City:</label>
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<div class="input-group">
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<input class="form-control" id="city-guess" v-model="city_guess" @keyup.enter="guess">
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<button class="btn btn-primary" type="button" @click="guess">Guess</button>
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</div>
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</div>
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<div v-if="message != ''" class="alert alert-secondary" role="alert">
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{{ message }}
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</div>
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<h3>{{ state_name }} cities</h3>
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<div>
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<span
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v-for="(required_cities, name) in achievements"
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:class="{ 'badge': true, 'me-1': true, 'text-bg-secondary': !required_cities(state_cities).every(c => c.guessed), 'text-bg-warning': required_cities(state_cities).every(c => c.guessed) }">
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{{ name }}
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({{ required_cities(state_cities).filter(c => c.guessed).length }}/{{ required_cities(state_cities).length }})
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</span>
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</div>
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<table class="table">
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<thead>
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<tr>
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<th>Rank</th>
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<th>Name</th>
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<th>Population</th>
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</tr>
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</thead>
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<tbody>
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<template v-for="(city, rank) in state_cities">
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<tr v-show="city.guessed">
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<td>{{ rank + 1 }}</td>
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<td>{{ city.name }}</td>
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<td>{{ city.pop }}</td>
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</tr>
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</template>
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</tbody>
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</table>
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</div>
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<div class="col-8">
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<canvas id="canvas" class="mx-3 my-auto" width="800" height="600"></canvas>
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<div>
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<input type="checkbox" id="show-unguessed-checkbox" v-model="show_unguessed_cities" @change="draw">
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<label for="show-unguessed-checkbox">Show unguessed cities</label>
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</div>
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</div>
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</div>
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</div>
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<footer class="footer mt-auto py-3 text-center text-muted">
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Created by <a href="https://chandlerswift.com">Chandler Swift</a> using 2020 US Census data |
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<a href="https://git.chandlerswift.com/chandlerswift/name-all-cities-by-population-quiz">Source</a>
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(<a href="https://git.chandlerswift.com/chandlerswift/name-all-cities-by-population-quiz/src/branch/main/LICENSE">GPL3</a>)
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</footer>
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<script type="module">
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import { createApp } from 'https://unpkg.com/petite-vue?module';
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createApp({
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launched: false,
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shapes_request: null,
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states: null,
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state_name: null,
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state_cities: [],
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state_shape: null,
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state_mercator_adjusted_bounds: null,
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simplified_cities: null,
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city_guess: "",
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message: "",
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show_unguessed_cities: true,
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achievements: {
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"Top Five": cities => cities.slice(0, 5),
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"Top Ten": cities => cities.slice(0, 10),
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"Top Twenty": cities => cities.slice(0, 20),
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"Top Fifty": cities => cities.slice(0, 50),
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"Top Hundred": cities => cities.slice(0, 100),
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"Every Single One": cities => cities,
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"All above 100k": cities => cities.filter(city => city.pop >= 100000),
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"All above 50k": cities => cities.filter(city => city.pop >= 50000),
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"All above 25k": cities => cities.filter(city => city.pop >= 25000),
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},
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async mounted() {
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// Fire off this request ASAP
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this.shapes_request = fetch("data/states.geojson");
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// Check if there's a parameter in the URL already
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this.state_name = (new URLSearchParams(window.location.search)).get('state');
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if (this.state_name) {
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this.launch();
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} else {
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const response = await fetch("data/states.json");
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this.states = await response.json();
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}
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},
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async launch() {
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this.launched = true;
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const response = await fetch(`data/${this.state_name}.json`);
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this.state_cities = await response.json();
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this.simplified_cities = this.state_cities.map(city => simplify(city.name));
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const shapes_response = await this.shapes_request;
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const shapes_data = await shapes_response.json();
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const shape = shapes_data.features.find(f => f.properties.NAME.toLowerCase() == this.state_name.toLowerCase());
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if (shape.geometry.type == "MultiPolygon") {
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this.state_shape = shape.geometry.coordinates.map(a => a.flat());
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} else { // Polygon
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this.state_shape = shape.geometry.coordinates;
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}
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this.state_mercator_adjusted_bounds = find_bounds(this.state_shape.flat().map(mercator));
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this.draw();
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},
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async save() {
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const data = {
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state: this.state_name,
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cities: this.state_cities,
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time: new Date,
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};
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// https://stackoverflow.com/a/30800715
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const dataStr = "data:text/json;charset=utf-8," + encodeURIComponent(JSON.stringify(data));
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const downloadAnchorNode = document.createElement('a');
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downloadAnchorNode.setAttribute("href", dataStr);
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const safeStateName = this.state_name.replace(/[^A-Za-z]/, '-');
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const datestring = `${data.time.getFullYear()}-${data.time.getMonth() + 1}-${data.time.getDate()}`;
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downloadAnchorNode.setAttribute("download", `name-all-cities-${safeStateName}-${datestring}.json`);
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document.body.appendChild(downloadAnchorNode); // required for firefox
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downloadAnchorNode.click();
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downloadAnchorNode.remove();
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},
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async restore(event) {
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this.launched = true;
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// Sure would be nice if the API were just designed this way!
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const read_file = async (file) => new Promise((resolve) => {
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const fileReader = new FileReader();
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fileReader.onload = (e) => resolve(fileReader.result);
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fileReader.readAsText(file);
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});
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const save_data = await read_file(event.target.files[0]);
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const save = JSON.parse(save_data, (k, v) => k == 'time' ? new Date(v) : v);
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this.state_cities = save.cities;
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this.simplified_cities = this.state_cities.map(city => simplify(city.name));
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this.state_name = save.state;
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this.message = `Restored game from ${save.time.toLocaleString()} with ${save.cities.filter(c => c.guessed).length }/${ save.cities.length} cities guessed`;
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// The rest of this function is duplicated from launch(), above
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const shapes_response = await this.shapes_request;
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const shapes_data = await shapes_response.json();
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const shape = shapes_data.features.find(f => f.properties.NAME.toLowerCase() == this.state_name.toLowerCase());
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if (shape.geometry.type == "MultiPolygon") {
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this.state_shape = shape.geometry.coordinates.map(a => a.flat());
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} else { // Polygon
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this.state_shape = shape.geometry.coordinates;
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}
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this.state_mercator_adjusted_bounds = find_bounds(this.state_shape.flat().map(mercator));
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this.draw();
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},
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guess() {
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const rank = this.simplified_cities.indexOf(simplify(this.city_guess))
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if (rank >= 0) {
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const city = this.state_cities[rank];
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if (!city.guessed) {
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city.guessed = true;
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this.message = `${city.name} (population ${city.pop}) is the ${ordinal_suffix_of(rank + 1)} most populated city in ${this.state_name}.`;
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this.city_guess = "";
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this.draw();
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} else {
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this.message = `Already guessed ${city.name} (population ${city.pop}, rank ${rank}).`;
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this.city_guess = "";
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}
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}
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},
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draw() {
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const canvas = document.getElementById("canvas");
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const ctx = canvas.getContext("2d");
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ctx.clearRect(0, 0, canvas.width, canvas.height);
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const [minx, maxx, miny, maxy] = this.state_mercator_adjusted_bounds;
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const height_scale = (canvas.height - 8) / (maxy - miny);
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const width_scale = (canvas.width - 8) / (maxx - minx);
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const scale = Math.min(height_scale, width_scale);
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const y_offset = miny - (canvas.height / scale - (maxy - miny)) / 2;
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const x_offset = minx - (canvas.width / scale - (maxx - minx)) / 2;
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function transform(pt) {
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pt = mercator(pt)
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return [scale * (pt[0] - x_offset), canvas.height - (scale * (pt[1] - y_offset))];
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}
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for (let state_outline_segment of this.state_shape) {
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ctx.beginPath();
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ctx.moveTo(...transform(state_outline_segment[0]))
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for (let coord of state_outline_segment.slice(1)) {
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ctx.lineTo(...transform(coord));
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}
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ctx.stroke();
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}
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for (let city of this.state_cities) {
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if (city.guessed) {
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ctx.beginPath();
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const c = transform(city.location)
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ctx.fillStyle = "black";
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ctx.arc(c[0], c[1], 2, 0, 2*Math.PI, true);
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ctx.fill();
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} else if (this.show_unguessed_cities) {
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ctx.beginPath();
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const c = transform(city.location)
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ctx.fillStyle = "lightgray";
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ctx.arc(c[0], c[1], 2, 0, 2*Math.PI, true);
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ctx.fill();
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}
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}
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}
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}).mount();
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// https://stackoverflow.com/a/13627586
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function ordinal_suffix_of(i) {
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let j = i % 10,
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k = i % 100;
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if (j === 1 && k !== 11) {
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return i + "st";
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}
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if (j === 2 && k !== 12) {
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return i + "nd";
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}
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if (j === 3 && k !== 13) {
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return i + "rd";
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}
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return i + "th";
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}
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const simplify = s => s.toLowerCase().replace(/[^a-z]/g, '');
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function mercator(pt) {
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const radians_from_eq = Math.abs(Math.PI/180 * pt[1]);
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// https://en.wikipedia.org/wiki/Mercator_projection#Derivation
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const y_radians = Math.log(Math.tan(Math.PI/4 + radians_from_eq/2));
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const y_degrees = 180/Math.PI * y_radians;
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return [pt[0], y_degrees];
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}
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// returns minx, maxx, miny, maxy
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function find_bounds(coords) {
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return [
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Math.min(...coords.map(c => c[0])),
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Math.max(...coords.map(c => c[0])),
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Math.min(...coords.map(c => c[1])),
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Math.max(...coords.map(c => c[1]))
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];
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}
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</script>
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</body>
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</html>
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