//Step

//Get the player's input

key_right = keyboard_check(vk_right);
key_left = -keyboard_check(vk_left);
key_up = keyboard_check_pressed(vk_up);

//Changing sprites

if keyboard_check_pressed(vk_left)
{
    sprite_index = spr_DolphyLeft
}
if keyboard_check_pressed(vk_right)
{
    sprite_index = spr_Dolphy
}

//React to inputs

move = key_left + key_right;
hsp = move * movespeed;
if (vsp < 10) vsp += grav;

if (place_meeting(x+1,y+1,obj_wall))
{
    vsp = key_up * -jumpspeed
}

//Horizontal Collision

if (place_meeting(x+hsp,y,obj_wall))
{
    while(!place_meeting(x+sign(hsp),y,obj_wall))
    {
        x += sign(hsp);
    }
    hsp = 0;
}
x += hsp;

//Vertical Collision

if (place_meeting(x,y+vsp,obj_wall))
{
    while(!place_meeting(x,y+sign(vsp),obj_wall))
    {
        y += sign(vsp);
    }
    vsp = 0;
}
y += vsp;

//Diagonal collision

if(place_meeting(x+hsp, y+vsp, obj_wall))
{
    while(!place_meeting(x+sign(hsp), y + sign(vsp), obj_wall))
    {
        x+= sign(hsp);
        y+= sign(vsp);
    }
    hsp = 0;
    vsp = 0;
}
//Dolphys Movement
if((place_meeting(x,y+vsp,obj_wall)))
{
   move = false;
}