[DustyPorViva]

Hmm, this is what I currently came up with:

PHP Code:

function CheckForSlopes() {
  if (this.vely != 0) return;
  for (i=0;i<4;i+=1/16) {
    if (tiles[playerx+1.5,playery+1.5+i] in this.left45) {
      this.onslope = 1;
      playery = int(playery+i)-((playerx+1.5)%1);
      break;
    }
  }
  if (i == 4) {
    if (this.onslope == 1) playery = int(playery+(this.velx < 0 ? .5 : 0));
    this.onslope = 0;
  }
}