backups/Fantasy-Map-Generator
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submap mirror transformation, applicative style

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Mészáros Gergely 2022-04-20 12:24:19 +02:00
parent 38e708c0ed
commit d0b7c3aa9a
3 changed files with 40 additions and 17 deletions
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22
index.html
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@ -4456,13 +4456,20 @@
type="range"
min="1"
max="13"
value="8"
data-cells="50000"
value="4"
data-cells="10000"
oninput="document.getElementById('submapPointsOutput').value=cellsDensityConstants[+this.value]/1000 + 'K'; event.stopPropagation()"
/>
</td>
<td>
<output id="submapPointsOutput" style="color: #053305">50K</output>
<output id="submapPointsOutput" style="color: #053305">10K</output>
</td>
</tr>
<tr>
<td>Shift</td>
<td colspan="2">
X: <input id="submapShiftX" autocomplete="off" min="0" size="4" value="0"/>
Y: <input id="submapShiftY" autocomplete="off" min="0" size="4" value="0"/>
</td>
</tr>
<tr>
@ -4483,10 +4490,13 @@
</td>
</tr>
<tr>
<td>Shift</td>
<td>Mirror</td>
<td colspan="2">
X: <input id="submapShiftX" autocomplete="off" min="0" size="4" value="0"/>
Y: <input id="submapShiftY" autocomplete="off" min="0" size="4" value="0"/>
<input type="checkbox" class="checkbox" id="submapMirrorH" />
<label for="submapMirrorH" class="checkbox-label" >Horizontally</label>
&nbsp;
<input type="checkbox" class="checkbox" id="submapMirrorV" />
<label for="submapMirrorV" class="checkbox-label">Vertically</label>
</td>
</tr>
</table>

1
main.js
View file

@ -1413,6 +1413,7 @@ function reMarkFeatures() {
cells.harbor[i] = water.length;
};
if (!cells.i.length) return; // no cells -> there is nothing to do
for (let i = 1, queue = [0]; queue[0] !== -1; i++) {
const start = queue[0]; // first cell
cells.f[start] = i; // assign feature number

34
modules/ui/submap.js
View file

@ -25,6 +25,12 @@ window.UISubmap = (function () {
function openRemapOptions() {
resetZoom(0);
document.getElementById("submapRotationAngle").value = 0;
document.getElementById("submapRotationAngleOutput").value = "0°";
document.getElementById("submapShiftX").value = 0;
document.getElementById("submapShiftY").value = 0;
document.getElementById("submapMirrorH").checked = false;
document.getElementById("submapMirrorV").checked = false;
$("#remapOptionsDialog").dialog({
title: "Resampler options",
resizable: false,
@ -50,26 +56,32 @@ window.UISubmap = (function () {
const angle = Number(document.getElementById("submapRotationAngle").value) / 180 * Math.PI;
const shiftX = Number(document.getElementById("submapShiftX").value);
const shiftY = Number(document.getElementById("submapShiftY").value);
const mirrorH = document.getElementById("submapMirrorH").checked;
const mirrorV = document.getElementById("submapMirrorV").checked;
if (!cellsDensityConstants[cellNumId]) {
console.error("Unknown cell number!");
return;
}
const [cx, cy] = [graphWidth / 2, graphHeight / 2];
const rot = alfa => (x, y) => [
(x - cx) * Math.cos(alfa) - (y - cy) * Math.sin(alfa) + cx,
(y - cy) * Math.cos(alfa) + (x - cx) * Math.sin(alfa) + cy
];
const shift = (dx, dy) => (x, y) => [x + dx, y + dy];
const flipH = (x, y) => [-x + 2 * cx, y];
const flipV = (x, y) => [x, -y + 2 * cy];
const app = (f, g) => (x, y) => f(...g(x, y));
if (!cellsDensityConstants[cellNumId]) {
console.error("Unknown cell number!");
return;
}
const id = (x, y) => [x, y];
let projection = id, inverse = id;
let projection, inverse;
if (angle || shiftX || shiftY) {
projection = app(shift(shiftX, shiftY), rot(angle));
inverse = app(rot(-angle), shift(-shiftX, -shiftY));
} else {
projection = (x, y) => [x, y];
inverse = (x, y) => [x, y];
if (angle) [projection, inverse] = [rot(angle), rot(-angle)];
if (shiftX || shiftY) {
projection = app(shift(shiftX, shiftY), projection);
inverse = app(inverse, shift(-shiftX, -shiftY));
}
if (mirrorH) [projection, inverse] = [app(flipH, projection), app(inverse, flipH)];
if (mirrorV) [projection, inverse] = [app(flipV, projection), app(inverse, flipV)];
changeCellsDensity(cellNumId);
WARN && console.warn("Resampling current map");