camera follow an object? - GameCreators Forum

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scuzz

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Posted: 9th Apr 2010 00:12

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im pretty new to "coding" just wondering if any one can post some code to make a camera follow an object that moves, but the camera stays at the same level/angle. (and how do u make camera turn left if the object turns left) this is what i have so far:
[code
sync on
sync rate 140
make object cube 1,1
make camera 1
position camera 1,0,5,0
point camera 1,0,0,0
do
if upkey()=1 then move object 1,.1
if downkey()=1 then move object 1,-.1
if leftkey()=1 then turn object left 1,5
if rightkey()=1 then turn object right 1,5
sync
loop]

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Indicium

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Posted: 9th Apr 2010 00:18

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If you have IanM's plugins, you can use this code to control object 1.

+ Code Snippet

function box_movement()
	if upkey() = 1
		move object 1, 2.0
	endif
	
	if rightkey() = 1 
		turn object right 1, 2.0
	endif
	
	if leftkey() =1
		turn object left 1, 2.0
	endif
	
	if downkey() =1 
		move object 1, -2.0
	endif
	
	position camera object position x( 1 ), object position y( 1 ), object position z( 1 )
	set camera to object orientation 0,1
	move camera -4
	move camera up 1
	
endfunction

Don't use camera 1, use camera 0

and I would advise lowering the sync rate to 60 or 70, 140 just seems too fast.

Rawwrr. Sig Fail.

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NickH

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Posted: 9th Apr 2010 00:22 Edited at: 9th Apr 2010 00:23

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I've been using "set camera to follow object" for part of my camera function in my game, though I'm not sure if I'll be keeping it as my camera code is only a rough setup at the moment. It might work for you though.

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scuzz

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Posted: 9th Apr 2010 00:33

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thanks a lot but,what is IanM's plugins. and the code didnt work for me: "move camera UP 1" wasnt a code.

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Indicium

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Posted: 9th Apr 2010 00:37

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They're a collection of commands. move camera up is one of them

http://forum.thegamecreators.com/?m=forum_view&t=85209&b=18&msg=1972494#m1972494

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TheComet

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Posted: 9th Apr 2010 00:39

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Also look at:

set camera to follow x#,y#,z#,angle#,distance#,height#,smooth#,flag

TheComet

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scuzz

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Posted: 9th Apr 2010 00:40

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i only have pitch camera up, but when i use that the game just ends instantly and NickH "set camera to follow" isnt working?

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Indicium

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Posted: 9th Apr 2010 00:49

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I don't see why pitch camera up would end the game... But download the files from the link I gave you, and you can use the move camera up command.

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scuzz

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Posted: 9th Apr 2010 00:50

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nevermind i think ill just use : control camera using arrowkeys 1,.1,1

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TheComet

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Posted: 9th Apr 2010 00:54 Edited at: 9th Apr 2010 00:55

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rem setup screen
sync on
sync rate 60
backdrop on
hide mouse

rem declare variables
global x# as float
global y# as float
global z# as float
global angle# as float
global distance# as float
global height# as float
global smooth# as float
global flag as byte

rem make a player object
make object cube 1,1

rem main loop
do

rem control player movement with input
   if upkey()=1 then move object 1,.1
   if downkey()=1 then move object 1,-.1
   if leftkey()=1 then turn object left 1,5
   if rightkey()=1 then turn object right 1,5

rem get values for camera positions
   x#=object position x(1)
   y#=object position y(1)
   z#=object position z(1)
   angle#=object angle y(1)
   distance#=object size z(1)*4
   height#=y#+object size y(1)*3
   smooth#=10
   flag=0

rem set camera to follow player object
   set camera to follow x#,y#,z#,angle#,distance#,height#,smooth#,flag

rem point camera at player object
   point camera x#,y#,z#

rem refresh screen
   sync

rem end of main loop
loop

+ Code Snippet

rem setup screen
sync on
sync rate 60
backdrop on
hide mouse

rem declare variables
global x# as float
global y# as float
global z# as float
global angle# as float
global distance# as float
global height# as float
global smooth# as float
global flag as byte

rem make a player object
make object cube 1,1

rem main loop
do

   rem control player movement with input
   if upkey()=1 then move object 1,.1
   if downkey()=1 then move object 1,-.1
   if leftkey()=1 then turn object left 1,5
   if rightkey()=1 then turn object right 1,5

   rem get values for camera positions
   x#=object position x(1)
   y#=object position y(1)
   z#=object position z(1)
   angle#=object angle y(1)
   distance#=object size z(1)*4
   height#=y#+object size y(1)*3
   smooth#=10
   flag=0

   rem set camera to follow player object
   set camera to follow x#,y#,z#,angle#,distance#,height#,smooth#,flag

   rem point camera at player object
   point camera x#,y#,z#

   rem refresh screen
   sync

rem end of main loop
loop

TheComet

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NickH

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Posted: 9th Apr 2010 01:00

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Quote: ""set camera to follow object""

Hehe I just realised when I copied and pasted my last post i pasted it wrong, I just noticed as written above it's "set camera to follow". This seems to work well enough.

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scuzz

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Posted: 9th Apr 2010 01:02

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thanks a lot thecomet, and will do madnightmare. thanks everyone

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scuzz

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Posted: 9th Apr 2010 01:06

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p.s. how do you get things into that "code snippet"?

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Indicium

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Posted: 9th Apr 2010 01:12

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When you post, theres options along the top, the one furthest to the right says 'code'.

Highlight the code, the click that.

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TheComet

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Posted: 9th Apr 2010 12:06

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Your post should look like this after pressing the code button:

[ code ] Your code goes here [ /code ]

And if you want the different commands to be colored like here

+ Code Snippet

rem hello
print "hello"
gosub hello
hello=3

Then replace [ code ] with [ code lang=dbp ].

TheComet

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scuzz

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Posted: 9th Apr 2010 18:45

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so i cant use "move arrowkeys to move camera" because when it hits the wall, the box stops, while the camera keeps going. thecomet, your code works well except the camera wont follow the cube when it turns all the way around (360 degrees) ???

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