How to stop lives going into minus

blackswan2428

How do you stop lives going into minus? I've tried everything I could.

blackswan2428

And how do I make a sprite dash?

Despicable_Dad

For your first question, here's how I do it…though I'm very old school and probably don't take as much advantage of Scratch features as I should.

when green flag clicked
forever
say [Press SPACE to start]
wait until <key [space v] pressed?>
say []
set [lives v] to [3]
repeat until <(lives) < [1]>
repeat until <touching [enemy bullet v] ?>
game mechanics
end
change [lives v] by (-1)
end
game over
end

Last edited by Despicable_Dad (Nov. 1, 2017 09:51:31)

kabobbob

Here's something that you could try for sprinting.

... :: events
if <<key [left arrow v] pressed?> and <key [s v] pressed?>> then
move (((speed) * (2))) steps
end

Of course, speed would be how fast your character goes normaly. The “left arrow” should also be right arrow, but the product would be inverse (speed*-2) The 2 can also be changed. As well, im interested to see this project. Could you please quote this post with the link to the project?

RokCoder

blackswan2428 wrote:
And how do I make a sprite dash?

For this, add a link to a project where you've tried to do this and explain exactly what it is that you're trying to achieve. Sounds like you just need to increase the movement velocity maybe while a key is being pressed but it would be easier to help if you show what you've already tried and make it clear what you're trying to achieve.

nathanpig

blackswan2428 wrote:
And how do I make a sprite dash?

Simple, just add a variable for speed, then make a script that sets the speed to a dashing speed when a requirement is met.

when green flag clicked
forever
if <key [space v] pressed?> then 
set [speed v] to [3]
  

else
set [speed v] to [1]
end
end

Then make sure that the blocks your using for movement are using this variable.

when green flag clicked
forever
if <key [d v] pressed?> then
change x by (speed)
end
if <key [a v] pressed> then
change x by ((speed) * (-1))
end
end

nathanpig

blackswan2428 wrote:
How do you stop lives going into minus? I've tried everything I could.

For this, just use if and and blocks.

when green flag clicked
set [lives v] to [3]
forever
if <<touching [enemy v] ?> and <[0] < (lives)>> then
change [lives v] by (-1)
end
if <(lives) < [1]> then
insert game over script here
end
end

NpChecker

An example:

when @greenFlag clicked
forever
if <(Lives) = [0]> then
stop [all v]
end
end

deck26

NpChecker wrote:

An example:

when @greenFlag clicked
forever
if <(Lives) = [0]> then
stop [all v]
end
end

Much better to put the check in the code that actually changes lives. If you do so in multiple places try using a broadcast so a single script can handle changes to the lives variable.

Running a forever loop to check lives 30 times a second or so is not efficient.

blackswan2428

For some reason everything stopped except the spite that you can control why is that?

AND THANKS FOR ALL THE HELP EVERYONE YOU HAVE BEEN SUCH A HELP

Last edited by blackswan2428 (Nov. 3, 2017 00:14:10)

blackswan2428

And can you make the coding for the dashing is a bit simpler thanks

GamesTV

For the no negative lives thing, Simply code this:
If lives equals zero
(Stop script that has the thing where if you get hit by an enemy or whatever you lose a life)
Switch backdrop to game over (Or whatever your game over screen is named)
Stop all
(50th post btw! *Silent dance*)

Last edited by GamesTV (Nov. 3, 2017 03:33:18)

Yemi349

I figured it out if you want to reset your game after they die here's how

if <(lives) = [0]> then
reset
end

define reset
set [lives] to [5]
go to x: (0) y: (0)

Last edited by Yemi349 (Nov. 5, 2022 16:15:34)

Yemi349

works for me
the block pictures haven't been updated for scratch 3.0

Last edited by Yemi349 (Nov. 5, 2022 16:19:20)

bsteichman

how about instead of:

change [lives v] by (-1)

you can do

change [lives v] by ((-1) * <(lives) > (0)>)

Last edited by bsteichman (Nov. 5, 2022 18:13:20)

MC_Hero09

Or a simple way

when green flag clicked
set [ lives] to [3]
forever
repeat until <[lives] = [0]>
if <touching [ enemy] ?> then
change [ lives] by (-1)
end
end
broadcast [ GameOver]
end

Last edited by MC_Hero09 (Nov. 5, 2022 18:27:11)

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