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getBounds update.

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Richard Davey
2013-09-01 13:17:44 +01:00
parent 71b4cc532f
commit 7bdcbf5c2a
5 changed files with 325 additions and 167 deletions
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src/gameobjects/Sprite.js
+11 -1
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@@ -108,17 +108,21 @@ Phaser.Sprite = function (game, x, y, key, frame) {
// Edge points
this.offset = new Phaser.Point();
this.center = new Phaser.Point();
this.topLeft = new Phaser.Point();
this.topRight = new Phaser.Point();
this.bottomRight = new Phaser.Point();
this.bottomLeft = new Phaser.Point();
// Do we need all 4 edge points? It might be better to just calculate the center and apply the circle for a bounds check
this.getLocalPosition(this.center, this.offset.x + this.width / 2, this.offset.y + this.height / 2);
this.getLocalPosition(this.topLeft, this.offset.x, this.offset.y);
this.getLocalPosition(this.topRight, this.offset.x + this.width, this.offset.y);
this.getLocalPosition(this.bottomLeft, this.offset.x, this.offset.y + this.height);
this.getLocalPosition(this.bottomRight, this.offset.x + this.width, this.offset.y + this.height);
this.bounds = new Phaser.Rectangle(x, y, this.width, this.height);
this._dirty = false;
// transform cache
@@ -200,13 +204,17 @@ Phaser.Sprite.prototype.update = function() {
this.offset.setTo(this._a02 - (this.anchor.x * this._sw), this._a12 - (this.anchor.y * this._sh));
// Do we need all 4 edge points? It might be better to just calculate the center and apply the circle for a bounds check
this.getLocalPosition(this.center, this.offset.x + this.width / 2, this.offset.y + this.height / 2);
this.getLocalPosition(this.topLeft, this.offset.x, this.offset.y);
this.getLocalPosition(this.topRight, this.offset.x + this._sw, this.offset.y);
this.getLocalPosition(this.bottomLeft, this.offset.x, this.offset.y + this._sh);
this.getLocalPosition(this.bottomRight, this.offset.x + this._sw, this.offset.y + this._sh);
// Update our bounds
this.getBounds(this.bounds);
}
// this.checkBounds();
// Check our bounds
}
@@ -215,6 +223,8 @@ Phaser.Sprite.prototype.getLocalPosition = function(p, x, y) {
p.x = ((this._a11 * this._id * x + -this._a01 * this._id * y + (this._a12 * this._a01 - this._a02 * this._a11) * this._id) * this._sx) + this._a02;
p.y = ((this._a00 * this._id * y + -this._a10 * this._id * x + (-this._a12 * this._a00 + this._a02 * this._a10) * this._id) * this._sy) + this._a12;
// At this point could be working out the smallest / largest value for the bounds check
return p;
}