Shifting Gears - GameCreators Forum

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Newbie Brogo

21

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Joined: 10th Jul 2003

Location: In a Pool of Cats

Posted: 3rd Apr 2004 06:36

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Lets say i'm making a racing game. And lets say I want to shift gears to increase the speed. The speed variable is "met".
The shift variable is "shift".
I need to make it so that when you hit space, you shift, but only if you are at the top speed for the previous gear.
("n" is the variable for moving X, that doesnt need changing)
If spacekey()=1 then shift=shift+1
if shift=0 then n=2
if shift=1 then n=4 : inc met
if shift=2 and met=40 then n=8 : inc met
if shift=3 and met=80 then n=16 : inc met
ect. ect.
This is a very simple thing... yet my mind doesnt seem to grasp it... mabey it's becuase it's late... but i always run into problems with that code... If i go 40, then shift, then go 80, and shift, the next thing is supposed to be 120, but it goes all the way to 240. (which is the 5th gear) Mabey it's becuase if "met" doesn't meet the requirements for the next gear to take place, shift stays in that gear, but the speed wont change.

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CattleRustler

Retired Moderator

21

Years of Service

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Joined: 8th Aug 2003

Location: case modding at overclock.net

Posted: 3rd Apr 2004 06:43

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i'd suggest writing your code in blocks

IF
...
ELSE
...
ENDIF

without any : anywhere.

plot out the logic on paper first, then write it in code. Move onto each next step only when the previous one is flawless in all situations.

rock on

Home of the VB.NET Class Builder Utility - Demo available now!

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Clarks

21

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Joined: 30th Oct 2003

Location: BALTIMORE,MARYLAND

Posted: 3rd Apr 2004 11:02 Edited at: 3rd Apr 2004 11:04

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This should help

if drive_train#=manual#

`shifting up
   if mouseclick()=1 and shift_time#=0.0
   shift_time#=shift_time# + 1.0
   endif

if shift_time#=1.0 and shift_delay#=0.0
   gear=gear+1
   shift_delay#=1.0
   endif
   ` reset data
   if mouseclick()=0
   shift_delay#=0.0
   shift_time#=0.0
   endif
   `shifting down
   if mouseclick()=2 and shift_time#=0.0
   shift_time#=shift_time#-1.0
   endif
   if shift_time#=-1.0 and shift_delay#=0.0
   gear=gear-1
   shift_delay#=1.0
   endif
   ` reset data
   if mouseclick()=0
   shift_delay#=0.0
   shift_time#=0.0
   endif
   `make sure gears doesn't go higher than it should
   if gear>max_forward_gears
   gear=max_forward_gears
   endif
   if gear<0
   gear=0
   endif
   `check current gear selected and set correct ratio
   if gear=0
   xg#=gear#(0)
   else
   if gear=1
   xg#=gear#(1)
   else
   if gear=2
   xg#=gear#(2)
   else
   if gear=3
   xg#=gear#(3)
   else
   if gear=4
   xg#=gear#(4)
   else
   if gear=5
   xg#=gear#(5)
   else
   if gear=6
   xg#=gear#(6)
   endif
   endif
   endif
   endif
   endif
   endif
   endif
endif

+ Code Snippet

if drive_train#=manual#

   `shifting up
   if mouseclick()=1 and shift_time#=0.0
   shift_time#=shift_time# + 1.0
   endif

   if shift_time#=1.0 and shift_delay#=0.0
   gear=gear+1
   shift_delay#=1.0
   endif
   ` reset data
   if mouseclick()=0
   shift_delay#=0.0
   shift_time#=0.0
   endif
   `shifting down
   if mouseclick()=2 and shift_time#=0.0
   shift_time#=shift_time#-1.0
   endif
   if shift_time#=-1.0 and shift_delay#=0.0
   gear=gear-1
   shift_delay#=1.0
   endif
   ` reset data
   if mouseclick()=0
   shift_delay#=0.0
   shift_time#=0.0
   endif
   `make sure gears doesn't go higher than it should
   if gear>max_forward_gears
   gear=max_forward_gears
   endif
   if gear<0
   gear=0
   endif
   `check current gear selected and set correct ratio
   if gear=0
   xg#=gear#(0)
   else
   if gear=1
   xg#=gear#(1)
   else
   if gear=2
   xg#=gear#(2)
   else
   if gear=3
   xg#=gear#(3)
   else
   if gear=4
   xg#=gear#(4)
   else
   if gear=5
   xg#=gear#(5)
   else
   if gear=6
   xg#=gear#(6)
   endif
   endif
   endif
   endif
   endif
   endif
   endif
endif

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