character movement

function input(){
    //var RayLeft = new THREE.Raycaster(THREE.Vector3(player.position.x,player.position.y-0.15, player.position.z ),THREE.Vector3(0,0,0.1));
    //var RayRight = new THREE.Raycaster(THREE.Vector3(player.position.x,player.position.y-0.15, player.position.z ),THREE.Vector3(0,0,-0.1));



    var leftpnt = new THREE.Vector3( -0.1,0,0 );
    var rightpnt= new THREE.Vector3( 0.1,0,0 );
    var uppnt   = new THREE.Vector3( 0,0,-0.1 );
    var downpnt = new THREE.Vector3( 0,0,0.1 );


    /// experimental raycast test
    var startPnt = new THREE.Vector3( player.position.x,player.position.y-0.2, player.position.z );
    var endPnt = new THREE.Vector3( 0,-0.1,0 );
    //cube.position.set(player.position.x,player.position.y, player.position.z);
    var testRay = new THREE.Raycaster(startPnt,endPnt);
    testRay.set(startPnt,endPnt);
    var testIntersects = testRay.intersectObjects(scene.children);
    if ( testIntersects.length > 0) {
        //alert("this got trigerd");
        setMaterial(cube,Matswap);
        //testIntersects[ 1 ].object.material.color.set( 0xff0000 );
        player.position.y += 0.01;
    }
    else{
        setMaterial(cube,material);
        player.position.y += -0.01;
    }

    ///
    leftRay = new THREE.Raycaster(startPnt,leftpnt);
    leftRay.set(startPnt,leftpnt);
    leftIntersect   = leftRay.intersectObjects(scene.children);
    if (keyboard.pressed("left") && leftIntersect.length < 1)
{
player.position.x += -0.1;
startPnt = new THREE.Vector3( player.position.x,player.position.y-0.2, player.position.z );
}
    rightRay= new THREE.Raycaster(startPnt,rightpnt);
    rightRay.set(startPnt,rightpnt);
    rightIntersect  = rightRay.intersectObjects(scene.children);
    if (keyboard.pressed("right")&& rightIntersect.length < 1)
{
player.position.x +=0.1;
startPnt = new THREE.Vector3( player.position.x,player.position.y-0.2, player.position.z );
}
    upRay   = new THREE.Raycaster(startPnt,uppnt);
    upRay.set(startPnt,uppnt);
    upIntersect     = upRay.intersectObjects(scene.children);
    if (keyboard.pressed("up")   && upIntersect.length < 1)
{
player.position.z += -0.1;
startPnt = new THREE.Vector3( player.position.x,player.position.y-0.2, player.position.z );
}
    downRay = new THREE.Raycaster(startPnt,downpnt);
    downRay.set(startPnt,downpnt);
    downIntersect   = downRay.intersectObjects(scene.children);
    if (keyboard.pressed("down") && downIntersect.length < 1)
{
player.position.z += 0.1;
//no need for it, no further tests
}
    ///

    //if (upIntersect.length > 0) {
    //  player.position.z = upIntersect[0].point.z + 0.01;
    //};
}