Ground Collision - GameCreators Forum

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Flaming Ghost

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Posted: 4th Feb 2006 01:27

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I really have trouble with collision... it seem every other post I post has collision somewhere in the title. Right now I want to make a racing game, but I want you to go slower depending on what ground is below you. I want all of my levels to be .x files. How would I detect which ground is below me, my road is a seperate file from the rest of the scenory.

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Jerok

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Posted: 4th Feb 2006 03:09

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well if each different read type is a different object then you just need to check for object collision for the object that is the car example:

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collision#=object collision(1,0)

this will return the object number the car is colliding with and store it in the variable collision. then you just check if collision = to the object number of the track type

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Flaming Ghost

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Posted: 4th Feb 2006 15:50 Edited at: 4th Feb 2006 15:50

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Well wouldn't I need to make a collision box for that? When I did it it didn't detect any collision, and if I make a collision box, then it would count road collision inside of the road wouldn't it? (My track is a circle)

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Flaming Ghost

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Posted: 5th Feb 2006 02:02

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Well, I guess that's no answer, now I have another question. I want to just have a matrix with a texture on it as the ground. How would I detect wether you're on the part of the ground textured as a road or as the grass?

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Daemon

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Posted: 5th Feb 2006 05:53

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Make an array of the type of ground each square of the array is.

+ Code Snippet

dim track(50,50) as integer
for ix=1 to 50
   for iz=1 to 50
      track(ix,iz)=0
   next iz
next ix
hide mouse
autocam off
sync on
set camera range 0.1,100000
ink rgb(255,0,0),0
box 0,0,10,10
ink rgb(0,255,0),0
box 10,0,20,10
get image 1,0,0,20,10
cls
make matrix 1,50,50,50,50
prepare matrix texture 1,1,2,1
set matrix trim 1,0.08,0.08
for ix=10 to 40
   set matrix tile 1,ix,10,2
   track(ix,10)=1
   set matrix tile 1,ix,40,2
   track(ix,40)=1
next ix
for iz=10 to 40
   set matrix tile 1,10,iz,2
   track(10,iz)=1
   set matrix tile 1,40,iz,2
   track(40,iz)=1
next iz
randomize matrix 1,2
update matrix 1
position camera 10.5,0,10.5
do
sync
control camera using arrowkeys 0,0.01,0.5
position camera camera position x(),get ground height(1,camera position x(),camera position z())+0.5,camera position z()
if track(int(camera position x()),int(camera position z()))=1
   text 1,1,"On track"
endif
loop

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