Text between levels and smooth jumping

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2122

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Joined: 15th Aug 2005

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Posted: 25th Aug 2005 07:11

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I have made a sort of 3d pacman clone. It has a red sphere that chases you, and some stuff to climb on. I just need to smooth the jump, because you sort of just teleport up. I saw a good tutorial on this somewhere but i can't remember where. I searched the forum again and haven't found it. When you finish level one by collecting all the dots. it is supposed to blank out the screen then ask if you want to play again. it doesn't do that. Can someone tell me what i'm doing wrong?

Here's the code:

start:

sync on
sync rate 0

score = 0
load image "ground.bmp",1

make object sphere 1,50
make object collision box 1,-25,-25,-25,25,25,25,0

make object sphere 10,50
make object collision box 1,-25,-25,-25,25,25,25,0
color object 10,rgb(255,0,0)
position object 10,-1000,50,-1000

make matrix 1,10000,10000,100,100
randomize matrix 1,50
prepare matrix texture 1,1,1,1
set matrix texture 1,1,1
position matrix 1,-5000,0,-5000

make object box 2,75,75,75
position object 2,75,75,75
make object collision box 2,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 3,75,75,75
position object 3,75,125,150
make object collision box 3,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 4,75,75,75
position object 4,75,175,225
make object collision box 4,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 5,300,50,350
position object 5,600,150,600
make object collision box 5,-150,-25,-175,150,25,175,0

make object box 6,300,50,350
position object 6,600,0,600
make object collision box 6,-150,-25,-175,150,25,175,0

make object box 7,50,300,350
position object 7,475,0,600
make object collision box 7,-25,-150,-175,25,150,175,0

make object box 8,50,300,350
position object 8,725,0,600
make object collision box 8,-25,-150,-175,25,150,175,0

make object box 9,300,300,50
position object 9,600,0,450
make object collision box 9,-175,-150,-25,175,150,25,0

for I = 11 to 20
make object box I,25,25,25
make object collision box I,-12.5,-12.5,-12.5,12.5,12.5,12.5,0
next I

make object box 21,75,75,75
position object 21,200,175,100
make object collision box 21,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 22,75,75,75
position object 22,200,175,-100
make object collision box 22,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 23,75,75,75
position object 23,200,175,-300
make object collision box 23,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 24,75,75,75
position object 24,200,175,-500
make object collision box 24,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 25,500,25,500
position object 25,200,175,-1050
make object collision box 25,-250,-17.5,-250,250,17.5,250,0

position object 11,75,250,225
position object 12,600,200,600
position object 13,800,200,600
position object 14,600,200,300
position object 15,600,200,500
position object 16,200,200,-1050
position object 17,300,200,-1050
position object 18,100,200,-900
position object 19,200,225,-500
position object 20,200,225,-100

jump = 0

do

set cursor 0,0
print "Score: ",score
Rem Get object angle
oby#= object angle y(1)

Rem allow object to respond to keypresses

if upkey()=1 then move object 1,2.5
if downkey()=1 then move object 1,-5.5
if leftkey()=1 then yrotate object 1,wrapvalue(oby#-2.5)
if rightkey()=1 then yrotate object 1,wrapvalue(oby#+2.5)
if spacekey()=1 and jump=0 then move object up 1,125 : jump = 1

obpx#= object position x(1)
obpz#= object position z(1)
obpy#= object position y(1)

if obpy# > get ground height (1,obpx#,obpz#) + 30 then obpy# = obpy# - 1 : jump = 1
if obpy# < get ground height (1,obpx#,obpz#) + 30 then obpy# = get ground height (1,obpx#,obpz#) + 30
if obpy# = get ground height (1,obpx#,obpz#) + 30 then jump=0
rem object collisions

y = get ground height (1,obpx#,obpz#) + 30

for I = 11 to 20
if object exist(I)
   if object collision(1,I) then delete object I : score = score + 10
endif
next I

if object collision(1,0)
dec obpx#,get object collision x()
dec obpy#,get object collision y()
dec obpz#,get object collision z()
jump = 0
endif

Rem position object at these co-ordinates

position object 1,obpx#,obpy#,obpz#

Rem Using the newxvalue and newzvalue functions, work out a
Rem camera position based upon objects location i.e. 100 Rem world units away and slightly above.

camx#= newxvalue(obpx#,oby#-180,100)
camz#= newzvalue(obpz#,oby#-180,100)

position camera camx#,obpy#+50,camz#

rem point camera at object

point camera obpx#,obpy#,obpz#

if object collision(1,10) then end

if avoid = 0
point object 10,obpx#,0,obpz#
move object 10,2
endif

enmx# = object position x(10)
enmy# = object position y(10)
enmz# = object position z(10)

if object collision(10,0)
dec enmx#,get object collision x()
dec enmy#,get object collision y()
dec enmz#,get object collision z()
avoid = 1
endif

if enmy# > get ground height (1,enmx#,enmz#)+ 30 then enmy# = enmy# - 1
if enmy# < get ground height (1,enmx#,enmz#)+ 30 then enmy# = get ground height (1,enmx#,enmz#)+ 30

position object 10,enmx#,enmy#,enmz#

if avoid = 1
turn object right 10,145
avoid = 2
endif

if avoid = 2
move object 10,2
avoid = 0
endif

if score = 100
ink rgb(255,255,255),rgb(0,0,0)
cls
set cursor 400,400
print "YOU WIN!!!"
input "play again? y/n", d$
if d$="n" then end
if d$="y"
   for I = 1 to 10
   delete object I
   next I
   delete image 1
   delete matrix 1
   goto start
endif

end
endif

rem refresh screen and loop
sync
loop

+ Code Snippet

start:

sync on
sync rate 0

score = 0
load image "ground.bmp",1

make object sphere 1,50
make object collision box 1,-25,-25,-25,25,25,25,0

make object sphere 10,50
make object collision box 1,-25,-25,-25,25,25,25,0
color object 10,rgb(255,0,0)
position object 10,-1000,50,-1000

make matrix 1,10000,10000,100,100
randomize matrix 1,50
prepare matrix texture 1,1,1,1
set matrix texture 1,1,1
position matrix 1,-5000,0,-5000


make object box 2,75,75,75
position object 2,75,75,75
make object collision box 2,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 3,75,75,75
position object 3,75,125,150
make object collision box 3,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 4,75,75,75
position object 4,75,175,225
make object collision box 4,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 5,300,50,350
position object 5,600,150,600
make object collision box 5,-150,-25,-175,150,25,175,0

make object box 6,300,50,350
position object 6,600,0,600
make object collision box 6,-150,-25,-175,150,25,175,0

make object box 7,50,300,350
position object 7,475,0,600
make object collision box 7,-25,-150,-175,25,150,175,0

make object box 8,50,300,350
position object 8,725,0,600
make object collision box 8,-25,-150,-175,25,150,175,0

make object box 9,300,300,50
position object 9,600,0,450
make object collision box 9,-175,-150,-25,175,150,25,0

for I = 11 to 20
make object box I,25,25,25
make object collision box I,-12.5,-12.5,-12.5,12.5,12.5,12.5,0
next I

make object box 21,75,75,75
position object 21,200,175,100
make object collision box 21,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 22,75,75,75
position object 22,200,175,-100
make object collision box 22,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 23,75,75,75
position object 23,200,175,-300
make object collision box 23,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 24,75,75,75
position object 24,200,175,-500
make object collision box 24,-37.5,-37.5,-37.5,37.5,37.5,37.5,0

make object box 25,500,25,500
position object 25,200,175,-1050
make object collision box 25,-250,-17.5,-250,250,17.5,250,0

position object 11,75,250,225
position object 12,600,200,600
position object 13,800,200,600
position object 14,600,200,300
position object 15,600,200,500
position object 16,200,200,-1050
position object 17,300,200,-1050
position object 18,100,200,-900
position object 19,200,225,-500
position object 20,200,225,-100

jump = 0

do

set cursor 0,0
print "Score: ",score
Rem Get object angle
oby#= object angle y(1)

Rem allow object to respond to keypresses

if upkey()=1 then move object 1,2.5
if downkey()=1 then move object 1,-5.5
if leftkey()=1 then yrotate object 1,wrapvalue(oby#-2.5)
if rightkey()=1 then yrotate object 1,wrapvalue(oby#+2.5)
if spacekey()=1 and jump=0 then move object up 1,125 : jump = 1

obpx#= object position x(1)
obpz#= object position z(1)
obpy#= object position y(1)

if obpy# > get ground height (1,obpx#,obpz#) + 30 then obpy# = obpy# - 1 : jump = 1
if obpy# < get ground height (1,obpx#,obpz#) + 30 then obpy# = get ground height (1,obpx#,obpz#) + 30
if obpy# = get ground height (1,obpx#,obpz#) + 30 then jump=0
rem object collisions

y = get ground height (1,obpx#,obpz#) + 30

for I = 11 to 20
if object exist(I)
   if object collision(1,I) then delete object I : score = score + 10
endif
next I

if object collision(1,0)
dec obpx#,get object collision x()
dec obpy#,get object collision y()
dec obpz#,get object collision z()
jump = 0
endif

Rem position object at these co-ordinates

position object 1,obpx#,obpy#,obpz#

Rem Using the newxvalue and newzvalue functions, work out a
Rem camera position based upon objects location i.e. 100 Rem world units away and slightly above.

camx#= newxvalue(obpx#,oby#-180,100)
camz#= newzvalue(obpz#,oby#-180,100)

position camera camx#,obpy#+50,camz#

rem point camera at object

point camera obpx#,obpy#,obpz#

if object collision(1,10) then end

if avoid = 0
point object 10,obpx#,0,obpz#
move object 10,2
endif

enmx# = object position x(10)
enmy# = object position y(10)
enmz# = object position z(10)

if object collision(10,0)
dec enmx#,get object collision x()
dec enmy#,get object collision y()
dec enmz#,get object collision z()
avoid = 1
endif

if enmy# > get ground height (1,enmx#,enmz#)+ 30 then enmy# = enmy# - 1
if enmy# < get ground height (1,enmx#,enmz#)+ 30 then enmy# = get ground height (1,enmx#,enmz#)+ 30

position object 10,enmx#,enmy#,enmz#

if avoid = 1
turn object right 10,145
avoid = 2
endif

if avoid = 2
move object 10,2
avoid = 0
endif

if score = 100
ink rgb(255,255,255),rgb(0,0,0)
cls
set cursor 400,400
print "YOU WIN!!!"
input "play again? y/n", d$
if d$="n" then end
if d$="y"
   for I = 1 to 10
   delete object I
   next I
   delete image 1
   delete matrix 1
   goto start
endif

end
endif

rem refresh screen and loop
sync
loop

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TDK

Retired Moderator

21

Years of Service

User Offline

Joined: 19th Nov 2002

Location: UK

Posted: 25th Aug 2005 14:38

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With regards to your text problem...

In a 3D game, any text you print to the screen is immediately wiped off at the next screen update (Sync).

To stop this, you have 2 options.

1. Put all text printing on the line immediately after the Sync line in your program.

2. Use Set Camera View 0,0,1,1 which effectively turns off the 3D camera - freezing whatever was on the screen. When you've built the 3D screen for the next level, use Set Camera View 0,0,800,600 (or whatever screen mode you were using), to switch the camera back on again.

TDK_Man

A New Alternative IDE For DB Classic!

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2122

19

Years of Service

User Offline

Joined: 15th Aug 2005

Location:

Posted: 26th Aug 2005 00:13

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Thank you for the help. It worked great. I am going to work on a new level. If I use the "if object colision(1,0)" then how do I find out wich object I am coliding with? Another question is how do I make the sphere slide on angle objects? My last two questions have to do with collision and jumping. How do I make the object continue in the same speed and direction when its in the air? The other is how do I prevent the sphere from climbing objects?
In the code I made the sphere able to jump whenever it is coliding, so if you are holding jump and touch and object you shoot back up again. If I could tell If is was touching the top of an object, or the side I think I could prevent climbing.

Here is the new code: