requested changes

src/layers/renderers/drawIce.ts

@@ -1,22 +1,16 @@
-import { getGridPolygon } from "utils/graphUtils";
+import { byId } from "utils/nodeUtils";
-import { P, normalize, rn, last } from "utils";
-import { clipPoly } from "utils/lineUtils";
-import { ERROR } from "config/logging";
-import * as d3 from "d3";
 
 export function drawIce() {
-  const ice = d3.select("#ice");
+  const ice = byId("ice");
   const { ice: icePack } = pack;
 
+  let innerHTML = "";
   for (const shield of icePack.iceShields) {
-    ice
+    innerHTML += `<polygon points="${shield.points.toString()}" />`;
-      .append("polygon")
-      .attr("points", shield.points.toString())
   }
 
   for (const iceberg of icePack.icebergs) {
-    ice
+    innerHTML += `<polygon points="${iceberg.points.toString()}" />`;
-    .append("polygon")
-    .attr("points", iceberg.points.toString())
   }
+  ice.innerHTML = innerHTML;
 }

src/scripts/generation/pack/generateIce.ts

@@ -1,6 +1,5 @@
 import { ERROR } from "config/logging";
 import { aleaPRNG } from "scripts/aleaPRNG";
-import { IIce, Iiceberg } from "types/pack/ice";
 import { clipPoly, last, normalize, P, rn } from "utils";
 
 export function generateIce(
@@ -8,7 +7,7 @@ export function generateIce(
   vertices: IGraphVertices,
   temp: Int8Array,
   features: TGridFeatures,
-  gridCells: Pick<IGrid["cells"], "f" | "t">,
+  gridCells: Pick<IGrid["cells"], "f" | "t">
 ): IIce {
   const shieldMin = -8; // max temp to form ice shield (glacier)
   const icebergMax = 1; // max temp to form an iceberg
@@ -34,12 +33,16 @@ export function generateIce(
       const chain = connectVertices(vertex);
       if (chain.length < 3) continue;
       const points = clipPoly(chain.map((v) => vertices.p[v]));
-      icePack.iceShields.push({ points, type: "iceShield" });
+      icePack.iceShields.push({ points, transform: { x: 0, y: 0 } });
       continue;
     }
     // mildly cold: iceberd
     if (P(normalize(temperature, -7, 2.5))) continue; // t[-5; 2] cold: skip some cells
-    if (gridCells.f[i] !== 0 && (features[gridCells.f[i]] as IGridFeature).type === "lake") continue; // lake: no icebers // MARKER as IGridFeature
+    if (
+      gridCells.f[i] !== 0 &&
+      (features[gridCells.f[i]] as IGridFeature).type === "lake"
+    )
+      continue; // lake: no icebers // MARKER as IGridFeature
     let size = (6.5 + temperature) / 10; // iceberg size: 0 = full size, 1 = zero size
     if (gridCells.t[i] === -1) size *= 1.3; // coasline: smaller icebers
     size = Math.min(size * (0.4 + Math.random() * 1.2), 0.95); // randomize iceberg size
@@ -48,13 +51,20 @@ export function generateIce(
   return icePack;
 
   // Helper functions
-  function generateIceberg(i: number, size: number): Iiceberg {
+  function generateIceberg(i: number, size: number): IiceBerg {
     const cellMidPoint = cells.p[i];
-    const points = cells.v[i].map(v => vertices.p[v]).map((point) => [
+    const points: TPoints = cells.v[i]
+      .map((v) => vertices.p[v])
+      .map((point) => [
         (point[0] + (cellMidPoint[0] - point[0]) * size) | 0,
         (point[1] + (cellMidPoint[1] - point[1]) * size) | 0,
       ]);
-    return { points, cell: i, size: rn(1 - size, 2) };
+    return {
+      points,
+      transform: { x: 0, y: 0 },
+      cell: i,
+      size: rn(1 - size, 2),
+    };
   }
 
   // connect vertices to chain
@@ -71,9 +81,12 @@ export function generateIce(
       currentVertex
         .filter((cellIndicie) => temp[cellIndicie] <= shieldMin)
         .forEach((cellIndice) => (used[cellIndice] = 1));
-      const c0 = currentVertex[0] >= nOfCells || temp[currentVertex[0]] > shieldMin;
+      const c0 =
-      const c1 = currentVertex[1] >= nOfCells || temp[currentVertex[1]] > shieldMin;
+        currentVertex[0] >= nOfCells || temp[currentVertex[0]] > shieldMin;
-      const c2 = currentVertex[2] >= nOfCells || temp[currentVertex[2]] > shieldMin;
+      const c1 =
+        currentVertex[1] >= nOfCells || temp[currentVertex[1]] > shieldMin;
+      const c2 =
+        currentVertex[2] >= nOfCells || temp[currentVertex[2]] > shieldMin;
       const vertexNeighbors = vertices.v[current]; // neighboring vertices
       if (vertexNeighbors[0] !== prev && c0 !== c1)
         current = vertexNeighbors[0];

src/types/pack/ice.d.ts

@@ -1,18 +1,18 @@
 
-export interface IIceBase {
+interface IIceBase {
-    points: number[][];
+    points: TPoints;
+    transform: {x: number, y: number};
 }
 
-export interface Iiceberg extends IIceBase {
+interface IiceBerg extends IIceBase {
     cell: number;
     size: number;
 }
 
-export interface IiceShield extends IIceBase {
+interface IiceShield extends IIceBase {
-    type: string;
 }
 
-export interface IIce{
+interface IIce{
-    icebergs: Iiceberg[];
+    icebergs: IiceBerg[];
     iceShields: IiceShield[];
 }