mirror of
https://github.com/photonstorm/phaser
synced 2024-12-23 03:23:42 +00:00
94 lines
5 KiB
JavaScript
94 lines
5 KiB
JavaScript
var Phaser;
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(function (Phaser) {
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(function (Physics) {
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/// <reference path="../../_definitions.ts" />
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/**
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* Phaser - Physics - Projection
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*/
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(function (Projection) {
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var AABB67Deg = (function () {
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function AABB67Deg() { }
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AABB67Deg.CollideS = function CollideS(x, y, obj, t) {
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var signx = t.signx;
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var signy = t.signy;
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var px = obj.pos.x - (signx * obj.width);
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var penX = t.pos.x - px;
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if(0 < (penX * signx)) {
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var ox = (obj.pos.x - (signx * obj.width)) - (t.pos.x - (signx * t.xw));//this gives is the coordinates of the innermost
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var oy = (obj.pos.y - (signy * obj.height)) - (t.pos.y + (signy * t.yw));//point on the AABB, relative to a point on the slope
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var sx = t.sx;//get slope unit normal
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var sy = t.sy;
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//if the dotprod of (ox,oy) and (sx,sy) is negative, the corner is in the slope
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//and we need to project it out by the magnitude of the projection of (ox,oy) onto (sx,sy)
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var dp = (ox * sx) + (oy * sy);
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if(dp < 0) {
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//collision; project delta onto slope and use this to displace the object
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sx *= -dp//(sx,sy) is now the projection vector
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;
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sy *= -dp;
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var lenN = Math.sqrt(sx * sx + sy * sy);
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var lenP = Math.sqrt(x * x + y * y);
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var aX = Math.abs(penX);
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if(lenP < lenN) {
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if(aX < lenP) {
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obj.reportCollisionVsWorld(penX, 0, penX / aX, 0, t);
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return Phaser.Physics.AABB.COL_OTHER;
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} else {
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obj.reportCollisionVsWorld(x, y, x / lenP, y / lenP, t);
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return Phaser.Physics.AABB.COL_AXIS;
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}
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} else {
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if(aX < lenN) {
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obj.reportCollisionVsWorld(penX, 0, penX / aX, 0, t);
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return Phaser.Physics.AABB.COL_OTHER;
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} else {
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obj.reportCollisionVsWorld(sx, sy, t.sx, t.sy, t);
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return Phaser.Physics.AABB.COL_OTHER;
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}
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}
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}
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}
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//if we've reached this point, no collision has occured
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return Phaser.Physics.AABB.COL_NONE;
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};
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AABB67Deg.CollideB = function CollideB(x, y, obj, t) {
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var signx = t.signx;
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var signy = t.signy;
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var ox = (obj.pos.x - (signx * obj.width)) - (t.pos.x + (signx * t.xw));//this gives is the coordinates of the innermost
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var oy = (obj.pos.y - (signy * obj.height)) - (t.pos.y - (signy * t.yw));//point on the AABB, relative to a point on the slope
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var sx = t.sx;//get slope unit normal
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var sy = t.sy;
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//if the dotprod of (ox,oy) and (sx,sy) is negative, the corner is in the slope
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//and we need toproject it out by the magnitude of the projection of (ox,oy) onto (sx,sy)
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var dp = (ox * sx) + (oy * sy);
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if(dp < 0) {
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//collision; project delta onto slope and use this to displace the object
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sx *= -dp//(sx,sy) is now the projection vector
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;
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sy *= -dp;
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var lenN = Math.sqrt(sx * sx + sy * sy);
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var lenP = Math.sqrt(x * x + y * y);
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if(lenP < lenN) {
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obj.reportCollisionVsWorld(x, y, x / lenP, y / lenP, t);
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return Phaser.Physics.AABB.COL_AXIS;
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} else {
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obj.reportCollisionVsWorld(sx, sy, t.sx, t.sy, t);
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return Phaser.Physics.AABB.COL_OTHER;
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}
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}
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return Phaser.Physics.AABB.COL_NONE;
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};
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return AABB67Deg;
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})();
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Projection.AABB67Deg = AABB67Deg;
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})(Physics.Projection || (Physics.Projection = {}));
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var Projection = Physics.Projection;
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})(Phaser.Physics || (Phaser.Physics = {}));
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var Physics = Phaser.Physics;
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})(Phaser || (Phaser = {}));
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