backups/Fantasy-Map-Generator
1
0
Fork 0
mirror of https://github.com/Azgaar/Fantasy-Map-Generator.git synced 2026-02-05 10:01:24 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

sparse array implementation with reduced updates

Browse source
This commit is contained in:
StempunkDev 2026-01-13 23:40:37 +01:00
parent 5600c06381
commit 21710bc426
3 changed files with 90 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

48
public/modules/ice.js
View file

@ -65,33 +65,41 @@ window.Ice = (function () {
}
}
// Add a new iceberg (manual editing)
function addIceberg(cellId, size) {
const [cx, cy] = grid.points[cellId];
const points = getGridPolygon(cellId).map(([x, y]) => [
rn(lerp(cx, x, size), 2),
rn(lerp(cy, y, size), 2)
]);
pack.ice.icebergs.push({
cellId,
size,
points
});
return pack.ice.icebergs.length - 1; // return index
}
// Remove ice element by index
function removeIce(type, index) {
if (type === "glacier" && pack.ice.glaciers[index]) {
pack.ice.glaciers.splice(index, 1);
} else if (type === "iceberg" && pack.ice.icebergs[index]) {
pack.ice.icebergs.splice(index, 1);
//here we use the lose equality to find the first undefined or empty or null slot
const nextIndex = pack.ice.icebergs.findIndex(iceberg => iceberg == undefined);
if (nextIndex !== -1) {
pack.ice.icebergs[nextIndex] = {
cellId,
size,
points
};
redrawIceberg(nextIndex);
} else {
pack.ice.icebergs.push({
cellId,
size,
points
});
redrawIceberg(pack.ice.icebergs.length - 1);
}
}
function removeIce(type, index) {
if (type === "glacier" && pack.ice.glaciers[index]) {
delete pack.ice.glaciers[index];
redrawGlacier(index);
} else if (type === "iceberg" && pack.ice.icebergs[index]) {
delete pack.ice.icebergs[index];
redrawIceberg(index);
}
}
// Update iceberg points and size
function updateIceberg(index, points, size) {
if (pack.ice.icebergs[index]) {
pack.ice.icebergs[index].points = points;
@ -99,7 +107,6 @@ window.Ice = (function () {
}
}
// Randomize iceberg shape
function randomizeIcebergShape(index) {
const iceberg = pack.ice.icebergs[index];
if (!iceberg) return;
@ -120,7 +127,6 @@ window.Ice = (function () {
iceberg.points = points;
}
// Change iceberg size and recalculate points
function changeIcebergSize(index, newSize) {
const iceberg = pack.ice.icebergs[index];
if (!iceberg) return;
@ -129,7 +135,6 @@ window.Ice = (function () {
const [cx, cy] = grid.points[cellId];
const oldSize = iceberg.size;
// Recalculate points based on new size
const flat = iceberg.points.flat();
const pairs = [];
while (flat.length) pairs.push(flat.splice(0, 2));
@ -143,7 +148,6 @@ window.Ice = (function () {
iceberg.size = newSize;
}
// Get all ice data
function getData() {
return pack.ice;
}