diff --git a/poly2tri/poly2tri-tests.ts b/poly2tri/poly2tri-tests.ts
new file mode 100644
index 0000000000..2f062b3bee
--- /dev/null
+++ b/poly2tri/poly2tri-tests.ts
@@ -0,0 +1,92 @@
+/// <reference path="poly2tri.d.ts" />
+
+function initializeCDT(): poly2tri.SweepContext {
+    var contour = [
+        new poly2tri.Point(100, 100),
+        new poly2tri.Point(100, 300),
+        new poly2tri.Point(300, 300),
+        new poly2tri.Point(300, 100)
+    ];
+
+    var swctx = new poly2tri.SweepContext(contour);
+    return swctx;
+}
+
+function addHole() {
+    var swctx = initializeCDT();
+    var hole = [
+        new poly2tri.Point(200, 200),
+        new poly2tri.Point(200, 250),
+        new poly2tri.Point(250, 250)
+    ];
+    swctx.addHole(hole);
+}
+
+function addHoles() {
+    var swctx = initializeCDT();
+    var hole1 = [
+        new poly2tri.Point(200, 200),
+        new poly2tri.Point(200, 250),
+        new poly2tri.Point(250, 250)
+    ];
+
+    var hole2 = [
+        new poly2tri.Point(110, 110),
+        new poly2tri.Point(110, 120),
+        new poly2tri.Point(120, 120)
+    ];
+
+    swctx.addHoles([hole1, hole2]);
+}
+
+function addPoint() {
+    var swctx = initializeCDT();
+    var point = new poly2tri.Point(150, 150);
+    swctx.addPoint(point);
+}
+
+function addPoints() {
+    var swctx = initializeCDT();
+    var point1 = new poly2tri.Point(150, 150);
+    var point2 = new poly2tri.Point(155, 155);
+    swctx.addPoints([point1, point2]);
+    swctx.addPoints([{x: 110, y: 120}]);
+}
+
+function triangulate() {
+    var swctx = initializeCDT();
+    swctx.triangulate();
+    var triangles = swctx.getTriangles();
+
+    triangles.forEach(t => {
+        t.getPoints().forEach(p => {
+            console.log(p.x, p.y);
+        });
+        var p1 = t.getPoint(0);
+        var p2 = t.getPoint(1);
+        var p3 = t.getPoint(2);
+    });
+}
+
+function chaining() {
+    var swctx = initializeCDT();
+
+    var hole1 = [
+        new poly2tri.Point(200, 200),
+        new poly2tri.Point(200, 250),
+        new poly2tri.Point(250, 250)
+    ];
+
+    var hole2 = [
+        new poly2tri.Point(110, 110),
+        new poly2tri.Point(110, 120),
+        new poly2tri.Point(120, 120)
+    ];
+
+    var holes = [hole1, hole2];
+    var point1 = new poly2tri.Point(150, 150);
+    var point2 = new poly2tri.Point(155, 155);
+    var points = [point1, point2, { x: 153, y: 153 }];
+
+    var triangles = swctx.addHoles(holes).addPoints(points).triangulate().getTriangles();
+}
diff --git a/poly2tri/poly2tri.d.ts b/poly2tri/poly2tri.d.ts
new file mode 100644
index 0000000000..9b9edebd20
--- /dev/null
+++ b/poly2tri/poly2tri.d.ts
@@ -0,0 +1,113 @@
+// Type definitions for poly2tri v0.9.10
+// Project: http://github.com/r3mi/poly2tri.js/
+// Definitions by: Elemar Junior <https://github.com/elemarjr/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module poly2tri {
+
+    interface IPointLike {
+        x: number;
+        y: number;
+    }
+
+    class Point implements IPointLike {
+
+        x: number;
+        y: number;
+
+        constructor(x: number, y: number);
+
+        toString(): string;
+
+        toJSON(): JSON;
+
+        clone(): Point;
+
+        set_zero(): Point;
+
+        set(x: number, y: number): Point;
+
+        negate(): Point;
+
+        add(n: IPointLike): Point;
+        
+        sub(n: IPointLike): Point;
+
+        mul(s: number): Point;
+
+        length(): number;
+
+        normalize(): number;
+
+        equals(p: IPointLike): boolean;
+
+        static negate(p: IPointLike): Point;
+
+        static add(a: IPointLike, b: IPointLike): Point;
+
+        static sub(a: IPointLike, b: IPointLike): Point;
+
+        static mul(s: number, p: IPointLike): Point;
+
+        static cross(a: number, b: number): number;
+
+        static cross(a: IPointLike, b: number): number;
+
+        static cross(a: IPointLike, b: IPointLike): number;
+
+        static cross(a: number, b: IPointLike): number;
+
+        static toStringBase(p: IPointLike): string;
+
+        static toString(p: IPointLike): string;
+
+        static compare(a: IPointLike, b: IPointLike): number;
+
+        static equals(a: IPointLike, b: IPointLike): boolean;
+
+        static dot(a: IPointLike, b: IPointLike): number;
+    }
+
+
+    class SweepContext {
+        constructor(contour: Array<IPointLike>);
+
+        constructor(contour: Array<IPointLike>, options: JSON);
+
+        addHole(polyline: Array<IPointLike>): SweepContext;
+
+        addHoles(holes: Array<Array<IPointLike>>): SweepContext;
+
+        addPoint(point: IPointLike): SweepContext;
+
+        addPoints(point: Array<IPointLike>): SweepContext;
+
+        triangulate(): SweepContext;
+
+        getBoundingBox(): { min: IPointLike; max: IPointLike; };
+
+        getTriangles(): Array<Triangle>;
+    }
+
+    class Triangle {
+        constructor(a: IPointLike, b: IPointLike, c: IPointLike);
+
+        toString(): string;
+
+        getPoint(index: number): IPointLike;
+
+        getPoints(): Array<IPointLike>;
+
+        containsPoint(point: IPointLike): boolean;
+
+        containsPoints(p1: IPointLike, p2: IPointLike): boolean;
+
+        isInterior(): boolean;
+    }
+}
+
+
+
+
+
+