Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-20 04:44:11 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Extrude per mouse movement in voxel space instead of screen space

Browse source
This commit is contained in:
David Rowe 2014-08-22 10:09:10 -07:00
parent c8ac5f584a
commit 761387854d
1 changed files with 18 additions and 26 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
examples/editVoxels.js
View file

@ -51,9 +51,6 @@ var lastVoxelScale = 0;
var dragStart = { x: 0, y: 0 };
var wheelPixelsMoved = 0;
var mouseX = 0;
var mouseY = 0;
// Create a table of the different colors you can choose
var colors = new Array();
colors[0] = { red: 120, green: 181, blue: 126 };
@ -1041,8 +1038,6 @@ function mousePressEvent(event) {
// TODO: does any of this stuff need to execute if we're panning or orbiting?
trackMouseEvent(event); // used by preview support
mouseX = event.x;
mouseY = event.y;
var pickRay = Camera.computePickRay(event.x, event.y);
var intersection = Voxels.findRayIntersection(pickRay);
audioOptions.position = Vec3.sum(pickRay.origin, pickRay.direction);
@ -1296,33 +1291,30 @@ function mouseMoveEvent(event) {
}
if (isAdding) {
// Watch the drag direction to tell which way to 'extrude' this voxel
if (!isExtruding) {
var pickRay = Camera.computePickRay(event.x, event.y);
var distance = Vec3.length(Vec3.subtract(pickRay.origin, lastVoxelPosition));
var mouseSpot = Vec3.sum(Vec3.multiply(pickRay.direction, distance), pickRay.origin);
var delta = Vec3.subtract(mouseSpot, lastVoxelPosition);
var pickRay = Camera.computePickRay(event.x, event.y);
var distance = Vec3.length(Vec3.subtract(pickRay.origin, lastVoxelPosition));
var mouseSpot = Vec3.sum(Vec3.multiply(pickRay.direction, distance), pickRay.origin);
var delta = Vec3.subtract(mouseSpot, lastVoxelPosition);
if (!isExtruding) {
// Use the drag direction to tell which way to 'extrude' this voxel
extrudeScale = lastVoxelScale;
extrudeDirection = { x: 0, y: 0, z: 0 };
isExtruding = true;
if (delta.x > lastVoxelScale) extrudeDirection.x = extrudeScale;
else if (delta.x < -lastVoxelScale) extrudeDirection.x = -extrudeScale;
else if (delta.y > lastVoxelScale) extrudeDirection.y = extrudeScale;
else if (delta.y < -lastVoxelScale) extrudeDirection.y = -extrudeScale;
else if (delta.z > lastVoxelScale) extrudeDirection.z = extrudeScale;
else if (delta.z < -lastVoxelScale) extrudeDirection.z = -extrudeScale;
if (delta.x > lastVoxelScale) extrudeDirection.x = 1;
else if (delta.x < -lastVoxelScale) extrudeDirection.x = -1;
else if (delta.y > lastVoxelScale) extrudeDirection.y = 1;
else if (delta.y < -lastVoxelScale) extrudeDirection.y = -1;
else if (delta.z > lastVoxelScale) extrudeDirection.z = 1;
else if (delta.z < -lastVoxelScale) extrudeDirection.z = -1;
else isExtruding = false;
} else {
// We have got an extrusion direction, now look for mouse move beyond threshold to add new voxel
var dx = event.x - mouseX;
var dy = event.y - mouseY;
if (Math.sqrt(dx*dx + dy*dy) > PIXELS_PER_EXTRUDE_VOXEL) {
lastVoxelPosition = Vec3.sum(lastVoxelPosition, extrudeDirection);
Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z,
extrudeScale, lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
mouseX = event.x;
mouseY = event.y;
// Extrude if mouse has moved by a voxel in the extrude direction
var distanceInDirection = Vec3.dot(delta, extrudeDirection);
if (distanceInDirection > extrudeScale) {
lastVoxelPosition = Vec3.sum(lastVoxelPosition, Vec3.multiply(extrudeDirection, extrudeScale));
Voxels.setVoxel(lastVoxelPosition.x, lastVoxelPosition.y, lastVoxelPosition.z, extrudeScale,
lastVoxelColor.red, lastVoxelColor.green, lastVoxelColor.blue);
}
}
}