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fix dynamic grid broadphase being broken

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RandomityGuy 2024-11-05 20:25:58 +05:30
parent 0a56019a53
commit 3de0519d47
2 changed files with 35 additions and 25 deletions
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1
src/collision/CollisionWorld.hx
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@ -34,6 +34,7 @@ class CollisionWorld {
public function build() {
this.grid.build();
this.dynamicGrid.setBounds(this.grid.bounds);
this.dynamicGrid.build();
}

59
src/collision/GridBroadphase.hx
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@ -32,6 +32,7 @@ class GridBroadphase {
var searchKey:Int = 0;
var _built = false;
var hasBounds:Bool = false;
public function new() {
// this.bounds = bounds.clone();
@ -139,37 +140,45 @@ class GridBroadphase {
}
}
public function setBounds(bounds:Bounds) {
this.bounds = bounds.clone();
this.cellSize = new Vector(bounds.xSize / CELL_DIV.x, bounds.ySize / CELL_DIV.y);
this.hasBounds = true;
}
public function build() {
if (_built)
return;
_built = true;
// Find the bounds
var xMin = 1e8;
var xMax = -1e8;
var yMin = 1e8;
var yMax = -1e8;
var zMin = 1e8;
var zMax = -1e8;
for (i in 0...this.objects.length) {
if (this.objects[i] == null)
continue;
var surface = this.objects[i].object;
xMin = Math.min(xMin, surface.boundingBox.xMin);
xMax = Math.max(xMax, surface.boundingBox.xMax);
yMin = Math.min(yMin, surface.boundingBox.yMin);
yMax = Math.max(yMax, surface.boundingBox.yMax);
zMin = Math.min(zMin, surface.boundingBox.zMin);
zMax = Math.max(zMax, surface.boundingBox.zMax);
if (!hasBounds) {
var xMin = 1e8;
var xMax = -1e8;
var yMin = 1e8;
var yMax = -1e8;
var zMin = 1e8;
var zMax = -1e8;
for (i in 0...this.objects.length) {
if (this.objects[i] == null)
continue;
var surface = this.objects[i].object;
xMin = Math.min(xMin, surface.boundingBox.xMin);
xMax = Math.max(xMax, surface.boundingBox.xMax);
yMin = Math.min(yMin, surface.boundingBox.yMin);
yMax = Math.max(yMax, surface.boundingBox.yMax);
zMin = Math.min(zMin, surface.boundingBox.zMin);
zMax = Math.max(zMax, surface.boundingBox.zMax);
}
// Some padding
xMin -= 100;
xMax += 100;
yMin -= 100;
yMax += 100;
zMin -= 100;
zMax += 100;
this.bounds = Bounds.fromValues(xMin, yMin, zMin, xMax - xMin, yMax - yMin, zMax - zMin);
this.cellSize = new Vector(this.bounds.xSize / CELL_DIV.x, this.bounds.ySize / CELL_DIV.y);
}
// Some padding
xMin -= 100;
xMax += 100;
yMin -= 100;
yMax += 100;
zMin -= 100;
zMax += 100;
this.bounds = Bounds.fromValues(xMin, yMin, zMin, xMax - xMin, yMax - yMin, zMax - zMin);
this.cellSize = new Vector(this.bounds.xSize / CELL_DIV.x, this.bounds.ySize / CELL_DIV.y);
// Insert the objects
for (i in 0...CELL_SIZE) {