[F5][A2] tile-based engine character movement

[cleantable]

Im using the tile-based tutorials created by tonypa. I haven't been able to figure out how to have the char face left when jumping left/falling left.


here is the code for detect keys:

function detectKeys() {
moveTiles();
var ob = _root.char;
var keyPressed = false;
if (Key.isDown(Key.SPACE) and !ob.jump and !ob.climb) {
if (!ob.jump) {
//if we were on slope, update
if (ob.onSlope) {
ob.y -= ob.addy;
ob.ytile = Math.floor(ob.y/game.tileH);
}
//jump
ob.onMovingTile = false;
ob.jump = true;
ob.jumpspeed = ob.jumpstart;
}
}
if (Key.isDown(Key.RIGHT)) {
getMyCorners(ob.x-ob.speed, ob.y, ob);
if (!ob.climb or ob.downleft and ob.upleft and ob.upright and ob.downright) {
if (!checkMovingTiles(1)) {
char.onMovingTile = false;
}
keyPressed = _root.moveChar(ob, 1, 0);
}
} else if (Key.isDown(Key.LEFT)) {
getMyCorners(ob.x-ob.speed, ob.y, ob);
if (!ob.climb or ob.downleft and ob.upleft and ob.upright and ob.downright) {
if (!checkMovingTiles(1)) {
char.onMovingTile = false;
}
keyPressed = _root.moveChar(ob, -1, 0);
}
} else if (Key.isDown(Key.UP)) {
if (!ob.jump and checkUpLadder(ob)) {
keyPressed = _root.climb(ob, -1);
}
} else if (Key.isDown(Key.DOWN)) {
if (!ob.jump and checkDownLadder(ob)) {
keyPressed = _root.climb(ob, 1);
}
}
if (Key.isDown(Key.SHIFT) and getTimer()>ob.lastshot+ob.shootspeed) {
_root.shoot(ob);

//shoot sound
var shootSound = new Sound();
shootSound.attachSound('Yogi-snowflake.mp3');
shootSound.start();
}
//do we jump
if (ob.jump) {
keyPressed = _root.jump(ob);
}
//walk animation
if (!keyPressed) {
ob.clip.char.gotoAndStop(1);
} else {
ob.clip.char.play();
}

//i added this code not sure if it works right
if(Key.isDown(key.LEFT) and ob.jump){
keyPressed = _root.moveChar(ob, -1, 0);


function moveChar(ob, dirx, diry, jump) {
//save direction for shooting
if (dirx<>0) {
ob.dirx = dirx;
}
//are we jumping?
if (Math.abs(jump) == 1) {
var speed = ob.jumpspeed*jump;
} else {
var speed = ob.speed;
}
//vertical movement
//where are our edges?
//first we look for y movement, so x is old
getMyCorners(ob.x, ob.y+speed*diry, ob);
//move and check for collisions.
//going up
if (diry == -1) {
if (ob.upleft and ob.upright) {
//no wall in the way, move on
ob.y += speed*diry;
} else {
//hit the wall, place char near the wall
ob.y = ob.ytile*game.tileH+ob.height;
//are we jumping around and have hit the tile above?
ob.jumpspeed = 0;
}
}
//if going down
if (diry == 1) {
if (ob.downleft and ob.downright and !checkMovingTiles(speed*diry)) {
ob.y += speed*diry;
} else {
ob.jump = false;
if (ob.onMovingTile) {
ob.y = ob.onMovingTile.y-ob.onMovingTile.height-ob.height;
} else {
ob.y = (ob.ytile+1)*game.tileH-ob.height;
}
}
}
//horisontal movement
//changing x with speed and taking old y
getMyCorners(ob.x+speed*dirx, ob.y, ob);
//if going left
if (dirx == -1) {
if ((ob.downleft and ob.upleft) or ob.onSlope) {
ob.x += speed*dirx;
//check for tile below
fall(ob);
} else {
ob.x = ob.xtile*game.tileW+ob.width;
}
}
//if going right
if (dirx == 1) {
if ((ob.upright and ob.downright) or ob.onSlope) {
ob.x += speed*dirx;
//check for tile below
fall(ob);
} else {
ob.x = (ob.xtile+1)*game.tileW-ob.width;
}
}

//update char position
ob.xtile = Math.floor(ob.x/game.tileW);
ob.ytile = Math.floor(ob.y/game.tileH);
checkForSlopes(ob, diry, dirx);
updateChar(ob, dirx, diry);
return (true);
}

function updateChar(ob, dirx, diry) {
//update char position
ob.clip._x = ob.x;
ob.clip._y = ob.y;
checkForSlopes(ob, diry, dirx);
if (dirx or diry) {
//face the direction
ob.clip.gotoAndStop(dirx+diry*2+3);
}
//calculate the tile where chars center is
ob.xtile = Math.floor(ob.clip._x/game.tileW);
ob.ytile = Math.floor(ob.clip._y/game.tileH);
//check for door
if (game["t_"+ob.ytile+"_"+ob.xtile].door and ob == _root.char) {
//make new map
changeMap(ob);
}


//check for item on current tile
var itemname = game["item"+ob.ytile+"_"+ob.xtile];
if (itemname and ob == _root.char) {
//add points
game.points = game.points+itemname.points;
_root.points = game.points;
//item pickup sound
var itemSound = new Sound();
itemSound.attachSound('Yogi-powerup.mp3');
itemSound.start();

//remove item movie clip
removeMovieClip(itemname.clip);
//remove item from items array
game.items[itemname.position] = 0;
//remove item object
delete game["item"+ob.ytile+"_"+ob.xtile];
}

return (true);
}

[ImprisonedPride]

I believe it's under his first few movement tutorials. If I remember correctly, I think it uses dirx * char._xscale (which would make it 100 or -100).