GMS 2 Part.1 - PlayerGameSK - o_player Step Event

/// @description Control the player

// Initialize control variables
key_left = keyboard_check(ord("A"));
key_right = keyboard_check(ord("D"));
key_jump = keyboard_check_pressed(vk_space);

// Check for ground
if (place_meeting(x, y+1, o_wall))
{
	{
    vspd = 0;
	}

    // Jumping
    if (key_jump)
	{
        vspd = -jspd;
    }
}
else
{
    // Gravity
    if (vspd < 10)
	{
        vspd += grav;
    }
}

// Move left
if (key_left)
{
	hspd = -spd;
}

// Move right
if (key_right)
{
	hspd = spd;
}

// Horizontal collisions
if (place_meeting(x+hspd, y, o_wall))
{
    while (!place_meeting(x+sign(hspd), y, o_wall))
	{
        x += sign(hspd);
    }
    hspd = 0;
}

// Move horizontally
x += hspd;

// Vertical collisions
if (place_meeting(x, y+vspd, o_wall))
{
    while (!place_meeting(x, y+sign(vspd), o_wall))
	{
        y += sign(vspd);
    }
    vspd = 0;
}

// Move vertically
y += vspd;

// Idle
if (!key_left) && (!key_right)
{
	hspd = 0;
}