+<script>
+ import Sensor from '$lib/components/sensor.svelte';
+ import Background from '$lib/components/background.svelte';
+ import Palette from '$lib/components/palette.svelte';
+ import Hud from '$lib/components/hud.svelte';
+ import { modulo } from '$lib/math';
+ import { widgets } from '$lib/stores/widgets';
+
+ import { coordinateLength, maxSize } from '$lib/config';
+
+ $: x = 0;
+ $: y = 0;
+ $: shouldShowPalette = false;
+
+ let dragging = false;
+
+ const moveCanvas = function moveCanvas(event) {
+
+ if (dragging) {
+ let deltaX = event.x - dragging.x;
+ let deltaY = event.y - dragging.y;
+ x = modulo(x - deltaX, maxSize);
+ y = modulo(y - deltaY, maxSize);
+ dragging.x = event.x;
+ dragging.y = event.y;
+ }
+ }
+
+ const startDragging = function startDragging(event) {
+ dragging = {
+ x: event.x,
+ y: event.y
+ };
+ }
+
+ const stopDragging = function startDragging() {
+ dragging = null;
+ }
+
+ const showPalette = function showPalette(event) {
+ event.preventDefault();
+ dragging = null;
+ document.documentElement.style.setProperty('--palette-x', event.clientX + 'px');
+ document.documentElement.style.setProperty('--palette-y', event.clientY + 'px');
+ shouldShowPalette = true;
+ }
+
+ const hidePalette = function hidePalette() {
+ event.preventDefault();
+ shouldShowPalette = false;
+ }
+</script>
+
+<div
+ class="canvas"
+ on:click={hidePalette}
+ on:contextmenu={showPalette}
+ on:mousedown={startDragging}
+ on:mouseup={stopDragging}
+ on:mousemove={moveCanvas}
+>
+ <Sensor x={x} y={y} />
+ <Background x={x} y={y} />
+ <Hud x={x} y={y} />
+
+ {#if shouldShowPalette }
+ <Palette/>
+ {/if}
+
+ <p>{JSON.stringify($widgets)}</p>
+</div>
+
+<style>
+ .canvas {
+ user-select: none;
+ padding: 0;
+ margin: 0;
+ width: 100vw;
+ height: 100vh;
+ }
+</style>