up down walk matrix - GameCreators Forum

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Acolyte Entertainment

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Joined: 28th Dec 2004

Location: Oregon, US

Posted: 4th Jan 2005 13:00

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i have a matrix an an object called "Knight.x" i wonderd if you matrix is like bumpy how to make him move up and down on top of it versus just going threw the ups and downs

tahnks in advanced

-smart guy

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Neofish

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Joined: 7th Apr 2004

Location: A swimming pool of coke

Posted: 4th Jan 2005 14:44

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there's a command called get matrix height(matrixNum,xPos,zPos)

Use it like this:

+ Code Snippet

matrixNum=1
objectNumber=1
obX=object position x(objectNumber)
obZ=object position z(objectNumber)
obY=get matrix height(matrixNum,obX,obZ)
position object objectNumber,obX,obY,obZ

Understand that?
Neofish

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Acolyte Entertainment

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Joined: 28th Dec 2004

Location: Oregon, US

Posted: 4th Jan 2005 23:34

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when i put in your code all it did was not let me move forward and backwords.
I want code that puts me ontop of the matrix.

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Iain

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Joined: 17th Jun 2004

Location: UK

Posted: 5th Jan 2005 14:19

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Here is the source code for a very simple first person shooter view that i wrote some time ago, it uses the get ground height command to keep the camera above the matrix.

You should be able to see how the get ground height command works from this code.

+ Code Snippet

Rem First Person Shooter Engine V1.0 By Iain McCluskey

sync on
sync rate 30
hide mouse

make matrix 1,2500,2500,25,25
randomize matrix 1,30
update matrix 1

do

rotate camera camera angle x(0)+(mousemovey()/2.5),camera angle y(0)+(mousemovex()/2.5),0

ax# = camera angle x()
ay# = camera angle y()

if upkey() = 1
  xrotate camera 0
  move camera 5
  xrotate camera ax#
endif
if downkey() = 1
  xrotate camera 0
  move camera - 5
  xrotate camera ax#
endif
if leftkey() = 1
  yrotate camera ay# - 90
  move camera 5
  yrotate camera ay#
endif
if rightkey() = 1
  yrotate camera ay# + 90
  move camera 5
  yrotate camera ay#
endif

x# = camera position x()
y# = get ground height(1,x#,z#) + 100
z# = camera position z()

position camera x#,y#,z#

sync

loop

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Visigoth

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Joined: 8th Jan 2005

Location: Bakersfield, California

Posted: 9th Jan 2005 04:30

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Ian-
This works good.
Mind if I use this in my program?

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Visigoth

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Posted: 9th Jan 2005 11:14

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Also, I added two lines to keep the camera from doing "Loops". The way it was, the camera could be rotated completely on it's X axis

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Visigoth

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Joined: 8th Jan 2005

Location: Bakersfield, California

Posted: 9th Jan 2005 12:06

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oops, I didn't know how to add the code snippet

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if camera angle x(0)>80 and camera angle x(0)<180 then xrotate camera 80
if camera angle x(0)< -80 and camera angle x(0)> -180 then xrotate camera -80

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Acolyte Entertainment

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Joined: 28th Dec 2004

Location: Oregon, US

Posted: 21st Feb 2005 12:23 Edited at: 21st Feb 2005 12:35

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ok i guys thanks to Iain (for the matrix thingy) i have this code:

rem make landscape
make matrix 1, 10000, 10000,50,50
randomize matrix 1, 50
update matrix 1

load image "snow.bmp",1

rem Load stone floor bitmap into image
LOAD BITMAP "snow.bmp",1
GET IMAGE 1,0,0,128,128
DELETE BITMAP 1

rem Texture landscape
PREPARE MATRIX TEXTURE 1,1,1,1

rem Activate and distance fogging
FOG ON
FOG COLOR 0
FOG DISTANCE 1200

rem make character
load object "knight.X", 1

rem Standard conversion for DM2 object use
xrotate object 1,270
fix object pivot 1

rem sync mouse
sync on : hide mouse

`place player near the center of the matrix
position object 1, 500, 5, 500

do

`player movement and turning
if keystate (17) then move object 1, 1
if keystate (31) then move object 1, -1
if keystate (30) then yrotate object 1, object angle y(1) - 1
if keystate (32) then yrotate object 1, object angle y(1) + 1

`store player posuition
x# = object position x(1)
z# = object position z(1)
y# = get ground height(1,x#,z#) + 100

position object 1, x#,y#,z#

`place the camera at the players position and face it the same angles it faces
position camera objx#, objy#, objz#

`set camera to object orientation 1
rotate camera object angle x(1), object angle y(1), object angle z(1)

`move camera straight up
xrotate camera 90
move camera -70

`set camera back to players angles and move it behind him
`set camera to object orientation 1
rotate camera object angle x(1), object angle y(1), object angle z(1)
move camera -170

`draw changes
sync
loop
sync on

+ Code Snippet

rem make landscape
make matrix 1, 10000, 10000,50,50
randomize matrix 1, 50
update matrix 1

load image "snow.bmp",1

rem Load stone floor bitmap into image
LOAD BITMAP "snow.bmp",1
GET IMAGE 1,0,0,128,128
DELETE BITMAP 1

rem Texture landscape
PREPARE MATRIX TEXTURE 1,1,1,1

rem Activate and distance fogging
FOG ON
FOG COLOR 0
FOG DISTANCE 1200


rem make character
load object "knight.X", 1

rem Standard conversion for DM2 object use
xrotate object 1,270
fix object pivot 1

rem sync mouse
sync on : hide mouse

`place player near the center of the matrix
position object 1, 500, 5, 500

do

`player movement and turning
if keystate (17) then move object 1, 1
if keystate (31) then move object 1, -1
if keystate (30) then yrotate object 1, object angle y(1) - 1
if keystate (32) then yrotate object 1, object angle y(1) + 1

`store player posuition
x# = object position x(1)
z# = object position z(1)
y# = get ground height(1,x#,z#) + 100

position object 1, x#,y#,z#


`place the camera at the players position and face it the same angles it faces
position camera objx#, objy#, objz#

`set camera to object orientation 1
rotate camera object angle x(1), object angle y(1), object angle z(1)

`move camera straight up
xrotate camera 90
move camera -70

`set camera back to players angles and move it behind him
`set camera to object orientation 1
rotate camera object angle x(1), object angle y(1), object angle z(1)
move camera -170

`draw changes
sync
loop
sync on

and it works fine exept for when my guy moves he goes up in all but he apears very high off the matrix. So in other words it works just fine but my "Knight.x" object apears way above the matrix.

-smart guy

Edit:
ok i got it working:
what i did was take away the +100 from the -

+ Code Snippet

x# = object position x(1)
y# = get ground height(1,x#,z#)[b]+100[/b]
z# = object position z(1)

position object 1,x#,y#,z#

but the camera still wont follow my person around

2nd edit:
sorry for all of the edits but i got it working i had to keep some stuff there from the old program.

-Thanks

-Smart ass

Quote: "I meen Smart guy"

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