(function(global) {
    var LiteGraph = global.LiteGraph;


	function Math3DMat4()
	{
        this.addInput("T", "vec3");
        this.addInput("R", "vec3");
        this.addInput("S", "vec3");
        this.addOutput("mat4", "mat4");
		this.properties = {
			"T":[0,0,0],
			"R":[0,0,0],
			"S":[1,1,1],
			R_in_degrees: true
		};
		this._result = mat4.create();
		this._must_update = true;
	}

	Math3DMat4.title = "mat4";
	Math3DMat4.temp_quat = new Float32Array([0,0,0,1]);
	Math3DMat4.temp_mat4 = new Float32Array(16);
	Math3DMat4.temp_vec3 = new Float32Array(3);

	Math3DMat4.prototype.onPropertyChanged = function(name, value)
	{
		this._must_update = true;
	}

	Math3DMat4.prototype.onExecute = function()
	{
		var M = this._result;
		var Q = Math3DMat4.temp_quat;
		var temp_mat4 = Math3DMat4.temp_mat4;
		var temp_vec3 = Math3DMat4.temp_vec3;

		var T = this.getInputData(0);
		var R = this.getInputData(1);
		var S = this.getInputData(2);

		if( this._must_update || T || R || S )
		{
			T = T || this.properties.T;
			R = R || this.properties.R;
			S = S || this.properties.S;
			mat4.identity( M );
			mat4.translate( M, M, T );
			if(this.properties.R_in_degrees)
			{
				temp_vec3.set( R );
				vec3.scale(temp_vec3,temp_vec3,DEG2RAD);
				quat.fromEuler( Q, temp_vec3 );
			}
			else
				quat.fromEuler( Q, R );
			mat4.fromQuat( temp_mat4, Q );
			mat4.multiply( M, M, temp_mat4 );
			mat4.scale( M, M, S );
		}

		this.setOutputData(0, M);		
	}

    LiteGraph.registerNodeType("math3d/mat4", Math3DMat4);

    //Math 3D operation
    function Math3DOperation() {
        this.addInput("A", "number,vec3");
        this.addInput("B", "number,vec3");
        this.addOutput("=", "number,vec3");
        this.addProperty("OP", "+", "enum", { values: Math3DOperation.values });
		this._result = vec3.create();
    }

    Math3DOperation.values = ["+", "-", "*", "/", "%", "^", "max", "min","dot","cross"];

    LiteGraph.registerSearchboxExtra("math3d/operation", "CROSS()", {
        properties: {"OP":"cross"},
        title: "CROSS()"
    });

    LiteGraph.registerSearchboxExtra("math3d/operation", "DOT()", {
        properties: {"OP":"dot"},
        title: "DOT()"
    });

	Math3DOperation.title = "Operation";
    Math3DOperation.desc = "Easy math 3D operators";
    Math3DOperation["@OP"] = {
        type: "enum",
        title: "operation",
        values: Math3DOperation.values
    };
    Math3DOperation.size = [100, 60];

    Math3DOperation.prototype.getTitle = function() {
		if(this.properties.OP == "max" || this.properties.OP == "min" )
			return this.properties.OP + "(A,B)";
        return "A " + this.properties.OP + " B";
    };

    Math3DOperation.prototype.onExecute = function() {
        var A = this.getInputData(0);
        var B = this.getInputData(1);
		if(A == null || B == null)
			return;
		if(A.constructor === Number)
			A = [A,A,A];
		if(B.constructor === Number)
			B = [B,B,B];

        var result = this._result;
        switch (this.properties.OP) {
            case "+":
                result = vec3.add(result,A,B);
                break;
            case "-":
                result = vec3.sub(result,A,B);
                break;
            case "x":
            case "X":
            case "*":
                result = vec3.mul(result,A,B);
                break;
            case "/":
                result = vec3.div(result,A,B);
                break;
            case "%":
                result[0] = A[0]%B[0];
                result[1] = A[1]%B[1];
                result[2] = A[2]%B[2];
                break;
            case "^":
                result[0] = Math.pow(A[0],B[0]);
                result[1] = Math.pow(A[1],B[1]);
                result[2] = Math.pow(A[2],B[2]);
                break;
            case "max":
                result[0] = Math.max(A[0],B[0]);
                result[1] = Math.max(A[1],B[1]);
                result[2] = Math.max(A[2],B[2]);
                break;
            case "min":
                result[0] = Math.min(A[0],B[0]);
                result[1] = Math.min(A[1],B[1]);
                result[2] = Math.min(A[2],B[2]);
            case "dot":
                result = vec3.dot(A,B);
                break;
            case "cross":
                vec3.cross(result,A,B);
                break;
            default:
                console.warn("Unknown operation: " + this.properties.OP);
        }
        this.setOutputData(0, result);
    };

    Math3DOperation.prototype.onDrawBackground = function(ctx) {
        if (this.flags.collapsed) {
            return;
        }

        ctx.font = "40px Arial";
        ctx.fillStyle = "#666";
        ctx.textAlign = "center";
        ctx.fillText(
            this.properties.OP,
            this.size[0] * 0.5,
            (this.size[1] + LiteGraph.NODE_TITLE_HEIGHT) * 0.5
        );
        ctx.textAlign = "left";
    };

    LiteGraph.registerNodeType("math3d/operation", Math3DOperation);

    function Math3DVec3Scale() {
        this.addInput("in", "vec3");
        this.addInput("f", "number");
        this.addOutput("out", "vec3");
        this.properties = { f: 1 };
        this._data = new Float32Array(3);
    }

    Math3DVec3Scale.title = "vec3_scale";
    Math3DVec3Scale.desc = "scales the components of a vec3";

    Math3DVec3Scale.prototype.onExecute = function() {
        var v = this.getInputData(0);
        if (v == null) {
            return;
        }
        var f = this.getInputData(1);
        if (f == null) {
            f = this.properties.f;
        }

        var data = this._data;
        data[0] = v[0] * f;
        data[1] = v[1] * f;
        data[2] = v[2] * f;
        this.setOutputData(0, data);
    };

    LiteGraph.registerNodeType("math3d/vec3-scale", Math3DVec3Scale);

    function Math3DVec3Length() {
        this.addInput("in", "vec3");
        this.addOutput("out", "number");
    }

    Math3DVec3Length.title = "vec3_length";
    Math3DVec3Length.desc = "returns the module of a vector";

    Math3DVec3Length.prototype.onExecute = function() {
        var v = this.getInputData(0);
        if (v == null) {
            return;
        }
        var dist = Math.sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
        this.setOutputData(0, dist);
    };

    LiteGraph.registerNodeType("math3d/vec3-length", Math3DVec3Length);

    function Math3DVec3Normalize() {
        this.addInput("in", "vec3");
        this.addOutput("out", "vec3");
        this._data = new Float32Array(3);
    }

    Math3DVec3Normalize.title = "vec3_normalize";
    Math3DVec3Normalize.desc = "returns the vector normalized";

    Math3DVec3Normalize.prototype.onExecute = function() {
        var v = this.getInputData(0);
        if (v == null) {
            return;
        }
        var dist = Math.sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
        var data = this._data;
        data[0] = v[0] / dist;
        data[1] = v[1] / dist;
        data[2] = v[2] / dist;

        this.setOutputData(0, data);
    };

    LiteGraph.registerNodeType("math3d/vec3-normalize", Math3DVec3Normalize);

    function Math3DVec3Lerp() {
        this.addInput("A", "vec3");
        this.addInput("B", "vec3");
        this.addInput("f", "vec3");
        this.addOutput("out", "vec3");
        this.properties = { f: 0.5 };
        this._data = new Float32Array(3);
    }

    Math3DVec3Lerp.title = "vec3_lerp";
    Math3DVec3Lerp.desc = "returns the interpolated vector";

    Math3DVec3Lerp.prototype.onExecute = function() {
        var A = this.getInputData(0);
        if (A == null) {
            return;
        }
        var B = this.getInputData(1);
        if (B == null) {
            return;
        }
        var f = this.getInputOrProperty("f");

        var data = this._data;
        data[0] = A[0] * (1 - f) + B[0] * f;
        data[1] = A[1] * (1 - f) + B[1] * f;
        data[2] = A[2] * (1 - f) + B[2] * f;

        this.setOutputData(0, data);
    };

    LiteGraph.registerNodeType("math3d/vec3-lerp", Math3DVec3Lerp);

    function Math3DVec3Dot() {
        this.addInput("A", "vec3");
        this.addInput("B", "vec3");
        this.addOutput("out", "number");
    }

    Math3DVec3Dot.title = "vec3_dot";
    Math3DVec3Dot.desc = "returns the dot product";

    Math3DVec3Dot.prototype.onExecute = function() {
        var A = this.getInputData(0);
        if (A == null) {
            return;
        }
        var B = this.getInputData(1);
        if (B == null) {
            return;
        }

        var dot = A[0] * B[0] + A[1] * B[1] + A[2] * B[2];
        this.setOutputData(0, dot);
    };

    LiteGraph.registerNodeType("math3d/vec3-dot", Math3DVec3Dot);

    //if glMatrix is installed...
    if (global.glMatrix) {
        function Math3DQuaternion() {
            this.addOutput("quat", "quat");
            this.properties = { x: 0, y: 0, z: 0, w: 1, normalize: false };
            this._value = quat.create();
        }

        Math3DQuaternion.title = "Quaternion";
        Math3DQuaternion.desc = "quaternion";

        Math3DQuaternion.prototype.onExecute = function() {
            this._value[0] = this.getInputOrProperty("x");
            this._value[1] = this.getInputOrProperty("y");
            this._value[2] = this.getInputOrProperty("z");
            this._value[3] = this.getInputOrProperty("w");
            if (this.properties.normalize) {
                quat.normalize(this._value, this._value);
            }
            this.setOutputData(0, this._value);
        };

        Math3DQuaternion.prototype.onGetInputs = function() {
            return [
                ["x", "number"],
                ["y", "number"],
                ["z", "number"],
                ["w", "number"]
            ];
        };

        LiteGraph.registerNodeType("math3d/quaternion", Math3DQuaternion);

        function Math3DRotation() {
            this.addInputs([["degrees", "number"], ["axis", "vec3"]]);
            this.addOutput("quat", "quat");
            this.properties = { angle: 90.0, axis: vec3.fromValues(0, 1, 0) };

            this._value = quat.create();
        }

        Math3DRotation.title = "Rotation";
        Math3DRotation.desc = "quaternion rotation";

        Math3DRotation.prototype.onExecute = function() {
            var angle = this.getInputData(0);
            if (angle == null) {
                angle = this.properties.angle;
            }
            var axis = this.getInputData(1);
            if (axis == null) {
                axis = this.properties.axis;
            }

            var R = quat.setAxisAngle(this._value, axis, angle * 0.0174532925);
            this.setOutputData(0, R);
        };

        LiteGraph.registerNodeType("math3d/rotation", Math3DRotation);


        function MathEulerToQuat() {
            this.addInput("euler", "vec3");
            this.addOutput("quat", "quat");
            this.properties = { euler:[0,0,0], use_yaw_pitch_roll: false };
			this._degs = vec3.create();
            this._value = quat.create();
        }

        MathEulerToQuat.title = "Euler->Quat";
        MathEulerToQuat.desc = "Converts euler angles (in degrees) to quaternion";

        MathEulerToQuat.prototype.onExecute = function() {
            var euler = this.getInputData(0);
            if (euler == null) {
                euler = this.properties.euler;
            }
			vec3.scale( this._degs, euler, DEG2RAD );
			if(this.properties.use_yaw_pitch_roll)
				this._degs = [this._degs[2],this._degs[0],this._degs[1]];
            var R = quat.fromEuler(this._value, this._degs);
            this.setOutputData(0, R);
        };

        LiteGraph.registerNodeType("math3d/euler_to_quat", MathEulerToQuat);

        function MathQuatToEuler() {
            this.addInput(["quat", "quat"]);
            this.addOutput("euler", "vec3");
			this._value = vec3.create();
        }

        MathQuatToEuler.title = "Euler->Quat";
        MathQuatToEuler.desc = "Converts rotX,rotY,rotZ in degrees to quat";

        MathQuatToEuler.prototype.onExecute = function() {
            var q = this.getInputData(0);
			if(!q)
				return;
            var R = quat.toEuler(this._value, q);
			vec3.scale( this._value, this._value, DEG2RAD );
            this.setOutputData(0, this._value);
        };

        LiteGraph.registerNodeType("math3d/quat_to_euler", MathQuatToEuler);


        //Math3D rotate vec3
        function Math3DRotateVec3() {
            this.addInputs([["vec3", "vec3"], ["quat", "quat"]]);
            this.addOutput("result", "vec3");
            this.properties = { vec: [0, 0, 1] };
        }

        Math3DRotateVec3.title = "Rot. Vec3";
        Math3DRotateVec3.desc = "rotate a point";

        Math3DRotateVec3.prototype.onExecute = function() {
            var vec = this.getInputData(0);
            if (vec == null) {
                vec = this.properties.vec;
            }
            var quat = this.getInputData(1);
            if (quat == null) {
                this.setOutputData(vec);
            } else {
                this.setOutputData(
                    0,
                    vec3.transformQuat(vec3.create(), vec, quat)
                );
            }
        };

        LiteGraph.registerNodeType("math3d/rotate_vec3", Math3DRotateVec3);

        function Math3DMultQuat() {
            this.addInputs([["A", "quat"], ["B", "quat"]]);
            this.addOutput("A*B", "quat");

            this._value = quat.create();
        }

        Math3DMultQuat.title = "Mult. Quat";
        Math3DMultQuat.desc = "rotate quaternion";

        Math3DMultQuat.prototype.onExecute = function() {
            var A = this.getInputData(0);
            if (A == null) {
                return;
            }
            var B = this.getInputData(1);
            if (B == null) {
                return;
            }

            var R = quat.multiply(this._value, A, B);
            this.setOutputData(0, R);
        };

        LiteGraph.registerNodeType("math3d/mult-quat", Math3DMultQuat);

        function Math3DQuatSlerp() {
            this.addInputs([
                ["A", "quat"],
                ["B", "quat"],
                ["factor", "number"]
            ]);
            this.addOutput("slerp", "quat");
            this.addProperty("factor", 0.5);

            this._value = quat.create();
        }

        Math3DQuatSlerp.title = "Quat Slerp";
        Math3DQuatSlerp.desc = "quaternion spherical interpolation";

        Math3DQuatSlerp.prototype.onExecute = function() {
            var A = this.getInputData(0);
            if (A == null) {
                return;
            }
            var B = this.getInputData(1);
            if (B == null) {
                return;
            }
            var factor = this.properties.factor;
            if (this.getInputData(2) != null) {
                factor = this.getInputData(2);
            }

            var R = quat.slerp(this._value, A, B, factor);
            this.setOutputData(0, R);
        };

        LiteGraph.registerNodeType("math3d/quat-slerp", Math3DQuatSlerp);


        //Math3D rotate vec3
        function Math3DRemapRange() {
            this.addInput("vec3", "vec3");
            this.addOutput("remap", "vec3");
			this.addOutput("clamped", "vec3");
            this.properties = { clamp: true, range_min: [-1, -1, 0], range_max: [1, 1, 0], target_min: [-1,-1,0], target_max:[1,1,0] };
			this._value = vec3.create();
			this._clamped = vec3.create();
        }

        Math3DRemapRange.title = "Remap Range";
        Math3DRemapRange.desc = "remap a 3D range";

        Math3DRemapRange.prototype.onExecute = function() {
            var vec = this.getInputData(0);
			if(vec)
				this._value.set(vec);
			var range_min = this.properties.range_min;
			var range_max = this.properties.range_max;
			var target_min = this.properties.target_min;
			var target_max = this.properties.target_max;

			//swap to avoid errors
			/*
			if(range_min > range_max)
			{
				range_min = range_max;
				range_max = this.properties.range_min;
			}

			if(target_min > target_max)
			{
				target_min = target_max;
				target_max = this.properties.target_min;
			}
			*/

			for(var i = 0; i < 3; ++i)
			{
				var r = range_max[i] - range_min[i];
				this._clamped[i] = clamp( this._value[i], range_min[i], range_max[i] );
				if(r == 0)
				{
					this._value[i] = (target_min[i] + target_max[i]) * 0.5;
					continue;
				}

				var n = (this._value[i] - range_min[i]) / r;
				if(this.properties.clamp)
					n = clamp(n,0,1);
				var t = target_max[i] - target_min[i];
				this._value[i] = target_min[i] + n * t;
			}

			this.setOutputData(0,this._value);
			this.setOutputData(1,this._clamped);
        };

        LiteGraph.registerNodeType("math3d/remap_range", Math3DRemapRange);



    } //glMatrix
	else if (LiteGraph.debug)
		console.warn("No glmatrix found, some Math3D nodes may not work");

})(this);