7 replies to this topic

[Sound Design]

Hello,

I am working on a game which feature a cannon that fires a ball ever time the right mouse button is released.
The next thing I would like is to have the speed in which the ball travels out the cannon to change depending on how long the button is pressed down for.
much like a power button.

I was kindly given some advice on this and so I have

In the cannon's create event:

global.bulletpower=0



Iin the 'Right Released' event:

global.bulletpower=0



In the cannon's step event:

if mouse_check_button(mb_right) = true and global.bulletpower<30
global.bulletpower += 0.5

But I can see no difference, any suggestions on amendments or change to code?


Thanks

Sound Design

[loverock125]

The code is correct. Did you use the variable global.bulletpower in your cannon mechanics?

The variable global.bulletpower increases as you have the right mouse button pressed, and resets to 0 when you release it.

My guess is that it gets reset before firing the ball. I will need the code you use to fire the ball to tell you how to change it.

[Sound Design]

The code is correct. Did you use the variable global.bulletpower in your cannon mechanics?

The variable global.bulletpower increases as you have the right mouse button pressed, and resets to 0 when you release it.

My guess is that it gets reset before firing the ball. I will need the code you use to fire the ball to tell you how to change it.

Ah yeah that makes sense, anyway here is what I am using in the right release event

if global.ammo>0
{
instance_create(x,y,bullet);
global.ammo-=1
}
with(instance_find(obj_interface,0))instance_destroy();
global.bulletpower=0

This is currently in the cannon create event

global.ammo= 4
global.bulletpower=0

In step event for cannon

image_index = point_direction (x, y, mouse_x,mouse_y)/6
if mouse_check_button(mb_right) = true and global.bulletpower<30
global.bulletpower += 0.5

[loverock125]

Where do you set the speed of the bullet?

The speed of the bullet should be relative with global.bulletpower. Something like:

bullet.speed = 5 + global.bulletpower/1.5;

[Sound Design]

Where do you set the speed of the bullet?

The speed of the bullet should be relative with global.bulletpower. Something like:

bullet.speed = 5 + global.bulletpower/1.5;

I currently have not got speed anywhere, should I put the code in the create event for the cannon?

Do I need to add speed anywhere?

[loverock125]

I am working on a game which feature a cannon that fires a ball ever time the right mouse button is released.

I thought you had already made the ball get fired...

How do you fire the ball without speed?

[GoldenDragon14]

make sure you set the speed of the ball before you set the global.bulletpower back to 0.

something along the lines of 
bullet = instance_create(x,y,obj_bullet)
bullet.speed = 5+global.bulletpower
global.bulletpower = 0

Edited by GoldenDragon14, 20 October 2011 - 08:59 PM.

[Sound Design]

make sure you set the speed of the ball before you set the global.bulletpower back to 0.

something along the lines of 
bullet = instance_create(x,y,obj_bullet)
bullet.speed = 5+global.bulletpower
global.bulletpower = 0

Thank you very much, works perfect,

Cheers

SD