Dot Product, Please Help Me!!!

[unrealhacker12]

Hi I've been working on this game engine for about 2 months and have been stuck 75% of that time on a collision between the player and a 45 degree slope.

I'll try and explain my engine best as possible:

Mouse.hide();
_global.dday = 0;
_global.angCol = 0;

///Helpful
if(_global.dday == 1){
    hit = 1;
}else{
    hit = 0;
}
moveP = 1;
mouseDist = 12;
//Gravity
grav = 1;

///Speed Variables
speed_x = 0;
speed_y = 0;

///Acc Variables
acc_x = 1;
acc_y = 1;

///Dec Variables
dec_x = 0.95;
dec_y = 0.95;

//Size Variables
Radius = _root.player._width/2;

//User Code
_root.player.onEnterFrame = function() {
    //Location Shortcut
    _global.player_y = _root.player._y;
    _global.player_x = _root.player._x;
    //Trace Boxes
    _root.box1 = playerFin;
    _root.Xbox = Math.round(speed_x);
    _root.Ybox = Math.round(speed_y);
    ///Move Player
    _root.player._y += speed_y;
    _root.player._x += speed_x;
    //Gravity
    speed_y += grav;
    //Friction/Air Resistance
    speed_y *= dec_y;
    speed_x *= dec_x;
    ///Shortcut Variables
    Xm = _root._xmouse;
    Ym = _root._ymouse;
    Xp = _root.player._x;
    Yp = _root.player._y;
    Adj = Xm-Xp;
    Opp = -1*(Ym-Yp);
    Ang = Math.atan2(Opp, Adj);
    Fin = Math.round(Ang/Math.PI*180);
    playerRadins = Math.atan2 (speed_y, speed_x);
    playerAng = Math.round(playerRadins * 180 / Math.PI);
    playerFin = playerAng;
    //Custom Cursor
    _root.cursor._x = Xm;
    _root.cursor._y = Ym;
    //Boundries Collisions
    if (_root.player._y>=400) {
        Yinvert(Yinvert);
    }
    if (_root.player._y<=0) {
        Yinvert(Yinvert);
    }
    if (_root.player._x>=750) {
        Xinvert(Xinvert);
    }
    if (_root.player._x<=0) {
        Xinvert(Xinvert);
    }
    //The Lenght of the Hyp between the mouse and player 
    //Hyp = Math.sqrt(((player.y - mouseY) * (player.y - mouseY)) + ((player.x - mouseX) * (player.x - mouseX)));
};
function trigHit(trigHit) {
    if(_global.dday == 1){
        hit = 1;
    }
}
function untrigHit(untrigHit) {
    if(_global.dday == 1){
        hit = 0;
    }
}
//Horizontal Collision
function Xinvert(Xinvert) {
    speed_x -= (speed_x*2);
}
//Vertical Collision
function Yinvert(Yinvert) {
    speed_y -= (speed_y*2);
    untrigHit(untrigHit);
}
//Dot Product Collision, NEEDED HERE!
function Zinvert(Zinvert) {
    
}
//This Launches the ball in the direction 
onMouseDown = function () {
    if (hit == 0) {
        speed_y = (_root._ymouse-_root.player._y)/mouseDist;
        speed_x = (_root._xmouse-_root.player._x)/mouseDist;
        trigHit(trigHit);
    }
}; 

The SWF

I want to know what I have to do to the players x_speed and y_speed after the collision with the 45 degree slope I know it involves dot product I've done alot of research into it, but no luck.

Research Links:
2D Physics Tutorial
TONYPA: Bounce
Math World: Dot Product

THE .FLA: http://www.filefreak.com/pfiles/70453/SpaceHopper.fla

PLEASE DON'T STEAL MY WORK!
PLEASE CAN SOME ONE HELP ME I'VE BEEN STUCK ON THIS PROBLEM FOR A MONTH NOW!

[mneil]

I'm not a big math guy, but I swear I've seen a fla on senocular's site that has some trajectory info on angled slopes. I know I've seen it somewhere and I'm thinking that's it.

http://senocular.com/flash/source.php?id=0.175

Search through the source files page. Check out the rest of the site too. Not a flashy site but tons of serious, practical flash work that is there for dissecting.

[unrealhacker12]

Could see anything in his Source .fla's :S

[mneil]

have you been to http://www.kirupa.com and browsed the tutorials? Or, have you checked the math and physics tutorials on FK? Or maybe I saw it somewhere here:

http://www.flashperfection.com/tutor...als-26531.html

Ahab's Math tuts are pretty rocking. I've done half of anything involving math with help from this site. I'll check around some more too and see if I can't find the exact one. I know I had a fla with the answer to your problem and I played with it for hours. I'll find it again.

[unrealhacker12]

Thank you very much you have no idea how much I appreciate your help.