Problemas em fazer um objeto pular

Código:


// ================= Code for jumping and stuff ==================

// Gravity for the hero
if place_free(x,y+1){
    gravity=0.7;
}
else{
    gravity=0;
}

// Jump for the hero
if keyboard_check_pressed('z'){

    if jumpDetection == 0{
        jumpDetection = 1;
        vspeed = -10;
    }
   
    if dir_R == 1{
        sprite_index = HeroJumpRight;
    }
    else if dir_L == 1{
        sprite_index = HeroJumpLeft;
    }
   
}


Código:

if keyboard_check_pressed(ord("Z"))

Código:


// ================= Code for moving on ground==================

// Define a standard position in case both right and left keys are pressed
if keyboard_check(vk_left) && keyboard_check(vk_right){
    dir_R = 0;
    dir_L = 0;
    sprite_index = HeroJumpRight;
}
else{ // Deal with only one key case
    if keyboard_check(vk_right)&& place_free(x+5, y) {
        dir_R = 1;
        dir_L = 0;
        x+=5;
        if jumpDetection == 0 {sprite_index = HeroWalkRight;}
    }
    if keyboard_check(vk_left) && place_free(x-5, y){
        dir_R = 0;
        dir_L = 1;
        x-=5;
        if jumpDetection == 0 {sprite_index = HeroWalkLeft;}
    }
}
if keyboard_check_released(vk_left){
    sprite_index = HeroJumpLeft;
}
if keyboard_check_released(vk_right){
    sprite_index = HeroJumpRight;
}

// ================= Code for jumping and stuff ==================

// Gravity for the hero
if place_free(x,y+1){
    gravity=0.7;
}
else {
    gravity = 0;
}

// Jump for the hero
if keyboard_check_pressed(ord("Z")) && jumpDetection == 0{

    if jumpDetection == 0{
        jumpDetection = 1;
    }
   
    //if !place_free(x,y+1){
        vspeed = -10;
    //}
   
    if dir_R == 1{
        sprite_index = HeroJumpRight;
    }
    else if dir_L == 1{
        sprite_index = HeroJumpLeft;
    }
   
}


Código:

if keyboard_check(vk_right)&& place_free(x+5, y) {
        .....
        x+=5;
        .....
    }

Se possível quero resolver estes dois problemas.

Código:

move_contact_solid(direction,12)
vspeed=0