From a809b68bb29c289d2b3cf410590566109193617f Mon Sep 17 00:00:00 2001
From: James Lyne <jim+github@not-null.co.uk>
Date: Thu, 10 Dec 2020 02:23:22 +0000
Subject: [PATCH] Implement display of lines and circles

---
 src/api.ts                                  |   5 +-
 src/components/map/layer/MarkerSetLayer.vue |   8 +-
 src/components/map/vector/Circles.vue       | 140 ++++++++++++++++++++
 src/components/map/vector/Lines.vue         | 122 +++++++++++++++++
 src/dynmap.d.ts                             |   2 +-
 5 files changed, 273 insertions(+), 4 deletions(-)
 create mode 100644 src/components/map/vector/Circles.vue
 create mode 100644 src/components/map/vector/Lines.vue

diff --git a/src/api.ts b/src/api.ts
index 2c00949..a625e37 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -231,7 +231,7 @@ function buildLines(data: any): Map<string, DynmapLine> {
 
 		lines.set(key, {
 			x: line.x || [0, 0],
-			y: [line.ybottom || 0, line.ytop || 0],
+			y: line.y || [0, 0],
 			z: line.z || [0, 0],
 			style: {
 				color: line.color || '#ff0000',
@@ -322,7 +322,8 @@ export default {
 				});
 			});
 
-			for(let i = 0; i < 408; i++) {
+			//Extra fake players for testing
+			for(let i = 0; i < 150; i++) {
 				players.add({
 					account: "VIDEO GAMES " + i,
 					health: Math.round(Math.random() * 10),
diff --git a/src/components/map/layer/MarkerSetLayer.vue b/src/components/map/layer/MarkerSetLayer.vue
index beb2505..3d3232c 100644
--- a/src/components/map/layer/MarkerSetLayer.vue
+++ b/src/components/map/layer/MarkerSetLayer.vue
@@ -1,6 +1,8 @@
 <template>
 	<GenericMarker v-for="[id, marker] in markerSet.markers" :options="marker" :key="id" :layer-group="layerGroup"></GenericMarker>
 	<Areas :areas="markerSet.areas" :layer-group="layerGroup"></Areas>
+	<Circles :circles="markerSet.circles" :layer-group="layerGroup"></Circles>
+	<Lines :lines="markerSet.lines" :layer-group="layerGroup"></Lines>
 </template>
 
 <script lang="ts">
@@ -10,11 +12,15 @@ import L from 'leaflet';
 import {DynmapMarkerSet} from "@/dynmap";
 import GenericMarker from "@/components/map/marker/GenericMarker.vue";
 import Areas from "@/components/map/vector/Areas.vue";
+import Circles from "@/components/map/vector/Circles.vue";
+import Lines from "@/components/map/vector/Lines.vue";
 
 export default defineComponent({
 	components: {
 		GenericMarker,
-		Areas
+		Areas,
+		Circles,
+		Lines,
 	},
 
 	props: {
diff --git a/src/components/map/vector/Circles.vue b/src/components/map/vector/Circles.vue
new file mode 100644
index 0000000..824cb7b
--- /dev/null
+++ b/src/components/map/vector/Circles.vue
@@ -0,0 +1,140 @@
+<script lang="ts">
+import {defineComponent, computed} from "@vue/runtime-core";
+import L, {LatLngExpression} from 'leaflet';
+import {useStore} from "@/store";
+import {DynmapCircle} from "@/dynmap";
+
+export default defineComponent({
+	props: {
+		circles: {
+			type: Object as () => Map<string, DynmapCircle>,
+			required: true
+		},
+		layerGroup: {
+			type: Object as () => L.LayerGroup,
+			required: true
+		}
+	},
+
+	setup() {
+		const store = useStore(),
+			currentProjection = computed(() => store.state.currentProjection),
+			layers = Object.freeze(new Map()) as Map<string, L.Path>;
+
+		return {
+			layers,
+			currentProjection,
+		}
+	},
+
+	watch: {
+		//FIXME: Prevent unnecessary repositioning when changing worlds
+		currentProjection() {
+			const projection = useStore().state.currentProjection,
+				latLng = (x: number, y: number, z: number) => {
+					return projection.locationToLatLng({x, y, z});
+				}
+
+			// eslint-disable-next-line no-unused-vars
+			for (const [id, circle] of this.circles) {
+				this.updateCircle(id, circle, latLng);
+			}
+		}
+	},
+
+	mounted() {
+		this.createCircles();
+	},
+
+	unmounted() {
+
+	},
+
+	render() {
+		return null;
+	},
+
+	methods: {
+		createCircles() {
+			const projection = useStore().state.currentProjection,
+				latLng = (x: number, y: number, z: number) => {
+					return projection.locationToLatLng({x, y, z});
+				};
+
+			this.circles.forEach((circle: DynmapCircle, id: string) => {
+				this.createCircle(id, circle, latLng);
+			});
+		},
+
+		createCircle(id: string, options: DynmapCircle, latLng: Function) {
+			const outline = !options.style.fillOpacity || (options.style.fillOpacity <= 0),
+				points = this.getPoints(options, latLng, outline);
+			let circle;
+
+			if(outline) {
+				circle = new L.Polyline(points, options.style);
+			} else {
+				circle = new L.Polygon(points, options.style);
+			}
+
+			if(options.label) {
+				circle.bindPopup(() => {
+					const popup = document.createElement('span');
+
+					if (options.popupContent) {
+						popup.classList.add('CirclePopup');
+						popup.insertAdjacentHTML('afterbegin', options.popupContent);
+					} else if (options.isHTML) {
+						popup.classList.add('CirclePopup');
+						popup.insertAdjacentHTML('afterbegin', options.label);
+					} else {
+						popup.textContent = options.label;
+					}
+
+					return popup;
+				});
+			}
+
+			this.layers.set(id, circle);
+			this.layerGroup.addLayer(circle);
+		},
+
+		getPoints(options: DynmapCircle, latLng: Function, outline: boolean): LatLngExpression[] {
+			const points = [];
+
+			for(let i = 0; i < 360; i++) {
+				const rad = i * Math.PI / 180.0,
+					x = options.radius[0] * Math.sin(rad) + options.location.x,
+					z = options.radius[1] * Math.cos(rad) + options.location.z;
+
+				console.log(x,options.location.y,z, latLng(x, options.location.y, z));
+
+				points.push(latLng(x, options.location.y, z));
+			}
+
+			if(outline && points.length) {
+				points.push(points[0]);
+			}
+
+			return points;
+		},
+
+		updateCircle(id: string, options: DynmapCircle, latLng: Function) {
+			let circle = this.layers.get(id) as L.Polyline,
+				outline = (options.style && options.style.fillOpacity && (options.style.fillOpacity <= 0)) as boolean,
+				points = this.getPoints(options, latLng, outline);
+
+			if (!circle) {
+				return;
+			}
+
+			circle.setLatLngs(points);
+			circle.redraw();
+		},
+	}
+})
+</script>
+
+<style scoped>
+
+</style>
\ No newline at end of file
diff --git a/src/components/map/vector/Lines.vue b/src/components/map/vector/Lines.vue
new file mode 100644
index 0000000..ab0899c
--- /dev/null
+++ b/src/components/map/vector/Lines.vue
@@ -0,0 +1,122 @@
+<script lang="ts">
+import {defineComponent, computed} from "@vue/runtime-core";
+import L, {LatLngExpression} from 'leaflet';
+import {useStore} from "@/store";
+import {DynmapLine} from "@/dynmap";
+
+export default defineComponent({
+	props: {
+		lines: {
+			type: Object as () => Map<string, DynmapLine>,
+			required: true
+		},
+		layerGroup: {
+			type: Object as () => L.LayerGroup,
+			required: true
+		}
+	},
+
+	setup() {
+		const store = useStore(),
+			currentProjection = computed(() => store.state.currentProjection),
+			layers = Object.freeze(new Map()) as Map<string, L.Path>;
+
+		return {
+			layers,
+			currentProjection,
+		}
+	},
+
+	watch: {
+		//FIXME: Prevent unnecessary repositioning when changing worlds
+		currentProjection() {
+			const projection = useStore().state.currentProjection,
+				latLng = (x: number, y: number, z: number) => {
+					return projection.locationToLatLng({x, y, z});
+				}
+
+			// eslint-disable-next-line no-unused-vars
+			for (const [id, line] of this.lines) {
+				this.updateLine(id, line, latLng);
+			}
+		}
+	},
+
+	mounted() {
+		this.createLines();
+	},
+
+	unmounted() {
+
+	},
+
+	render() {
+		return null;
+	},
+
+	methods: {
+		createLines() {
+			const projection = useStore().state.currentProjection,
+				latLng = (x: number, y: number, z: number) => {
+					return projection.locationToLatLng({x, y, z});
+				};
+
+			this.lines.forEach((line: DynmapLine, id: string) => {
+				this.createLine(id, line, latLng);
+			});
+		},
+
+		createLine(id: string, options: DynmapLine, latLng: Function) {
+			const points = this.getPoints(options, latLng),
+				line= new L.Polyline(points, options.style);
+
+			if(options.label) {
+				line.bindPopup(() => {
+					const popup = document.createElement('span');
+
+					if (options.popupContent) {
+						popup.classList.add('LinePopup');
+						popup.insertAdjacentHTML('afterbegin', options.popupContent);
+					} else if (options.isHTML) {
+						popup.classList.add('LinePopup');
+						popup.insertAdjacentHTML('afterbegin', options.label);
+					} else {
+						popup.textContent = options.label;
+					}
+
+					return popup;
+				});
+			}
+
+			this.layers.set(id, line);
+			this.layerGroup.addLayer(line);
+		},
+
+		getPoints(options: DynmapLine, latLng: Function): LatLngExpression[] {
+			const points = [];
+
+			for(let i = 0; i < options.x.length; i++) {
+				points.push(latLng(options.x[i], options.y[i], options.z[i]));
+			}
+
+			return points;
+		},
+
+		updateLine(id: string, options: DynmapLine, latLng: Function) {
+			let line = this.layers.get(id) as L.Polyline,
+				points = this.getPoints(options, latLng);
+
+			if (!line) {
+				return;
+			}
+
+			line.setLatLngs(points);
+			line.redraw();
+		},
+	}
+})
+</script>
+
+<style scoped>
+
+</style>
\ No newline at end of file
diff --git a/src/dynmap.d.ts b/src/dynmap.d.ts
index 8fc9ab0..23079da 100644
--- a/src/dynmap.d.ts
+++ b/src/dynmap.d.ts
@@ -203,7 +203,7 @@ interface DynmapLine {
 interface DynmapCircle {
 	location: Coordinate;
 	radius: PointTuple;
-	style: CircleMarkerOptions;
+	style: PathOptions;
 	label: string;
 	isHTML: boolean;
 	minZoom?: number;