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feat: heightmap brushes - linear edit option (1.88.00)

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Azgaar 2022-10-31 00:24:54 +03:00
parent d3ea2df1a2
commit 4a96c24cf3
7 changed files with 194 additions and 85 deletions
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96
modules/heightmap-generator.js
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@ -8,7 +8,7 @@ window.HeightmapGenerator = (function () {
const setGraph = graph => {
const {cellsDesired, cells, points} = graph;
heights = cells.h || createTypedArray({maxValue: 100, length: points.length});
heights = cells.h ? Uint8Array.from(cells.h) : createTypedArray({maxValue: 100, length: points.length});
blobPower = getBlobPower(cellsDesired);
linePower = getLinePower(cellsDesired);
grid = graph;
@ -198,7 +198,8 @@ window.HeightmapGenerator = (function () {
}
};
const addRange = (count, height, rangeX, rangeY) => {
// fromCell, toCell are options cell ids
const addRange = (count, height, rangeX, rangeY, startCell, endCell) => {
count = getNumberInRange(count);
while (count > 0) {
addOneRange();
@ -209,23 +210,27 @@ window.HeightmapGenerator = (function () {
const used = new Uint8Array(heights.length);
let h = lim(getNumberInRange(height));
// find start and end points
const startX = getPointInRange(rangeX, graphWidth);
const startY = getPointInRange(rangeY, graphHeight);
if (rangeX && rangeY) {
// find start and end points
const startX = getPointInRange(rangeX, graphWidth);
const startY = getPointInRange(rangeY, graphHeight);
let dist = 0,
limit = 0,
endX,
endY;
do {
endX = Math.random() * graphWidth * 0.8 + graphWidth * 0.1;
endY = Math.random() * graphHeight * 0.7 + graphHeight * 0.15;
dist = Math.abs(endY - startY) + Math.abs(endX - startX);
limit++;
} while ((dist < graphWidth / 8 || dist > graphWidth / 3) && limit < 50);
let dist = 0,
limit = 0,
endX,
endY;
do {
endX = Math.random() * graphWidth * 0.8 + graphWidth * 0.1;
endY = Math.random() * graphHeight * 0.7 + graphHeight * 0.15;
dist = Math.abs(endY - startY) + Math.abs(endX - startX);
limit++;
} while ((dist < graphWidth / 8 || dist > graphWidth / 3) && limit < 50);
startCell = findGridCell(startX, startY, grid);
endCell = findGridCell(endX, endY, grid);
}
const startCell = findGridCell(startX, startY, grid);
const endCell = findGridCell(endX, endY, grid);
let range = getRange(startCell, endCell);
// get main ridge
@ -286,7 +291,7 @@ window.HeightmapGenerator = (function () {
}
};
const addTrough = (count, height, rangeX, rangeY) => {
const addTrough = (count, height, rangeX, rangeY, startCell, endCell) => {
count = getNumberInRange(count);
while (count > 0) {
addOneTrough();
@ -297,30 +302,33 @@ window.HeightmapGenerator = (function () {
const used = new Uint8Array(heights.length);
let h = lim(getNumberInRange(height));
// find start and end points
let limit = 0,
startX,
startY,
start,
dist = 0,
endX,
endY;
do {
startX = getPointInRange(rangeX, graphWidth);
startY = getPointInRange(rangeY, graphHeight);
start = findGridCell(startX, startY, grid);
limit++;
} while (heights[start] < 20 && limit < 50);
if (rangeX && rangeY) {
// find start and end points
let limit = 0,
startX,
startY,
dist = 0,
endX,
endY;
do {
startX = getPointInRange(rangeX, graphWidth);
startY = getPointInRange(rangeY, graphHeight);
startCell = findGridCell(startX, startY, grid);
limit++;
} while (heights[startCell] < 20 && limit < 50);
limit = 0;
do {
endX = Math.random() * graphWidth * 0.8 + graphWidth * 0.1;
endY = Math.random() * graphHeight * 0.7 + graphHeight * 0.15;
dist = Math.abs(endY - startY) + Math.abs(endX - startX);
limit++;
} while ((dist < graphWidth / 8 || dist > graphWidth / 2) && limit < 50);
limit = 0;
do {
endX = Math.random() * graphWidth * 0.8 + graphWidth * 0.1;
endY = Math.random() * graphHeight * 0.7 + graphHeight * 0.15;
dist = Math.abs(endY - startY) + Math.abs(endX - startX);
limit++;
} while ((dist < graphWidth / 8 || dist > graphWidth / 2) && limit < 50);
let range = getRange(start, findGridCell(endX, endY, grid));
endCell = findGridCell(endX, endY, grid);
}
let range = getRange(startCell, endCell);
// get main ridge
function getRange(cur, end) {
@ -388,8 +396,12 @@ window.HeightmapGenerator = (function () {
const vert = direction === "vertical";
const startX = vert ? Math.floor(Math.random() * graphWidth * 0.4 + graphWidth * 0.3) : 5;
const startY = vert ? 5 : Math.floor(Math.random() * graphHeight * 0.4 + graphHeight * 0.3);
const endX = vert ? Math.floor(graphWidth - startX - graphWidth * 0.1 + Math.random() * graphWidth * 0.2) : graphWidth - 5;
const endY = vert ? graphHeight - 5 : Math.floor(graphHeight - startY - graphHeight * 0.1 + Math.random() * graphHeight * 0.2);
const endX = vert
? Math.floor(graphWidth - startX - graphWidth * 0.1 + Math.random() * graphWidth * 0.2)
: graphWidth - 5;
const endY = vert
? graphHeight - 5
: Math.floor(graphHeight - startY - graphHeight * 0.1 + Math.random() * graphHeight * 0.2);
const start = findGridCell(startX, startY, grid);
const end = findGridCell(endX, endY, grid);