Day night star cycle?

Blitz3D Forums/Blitz3D Programming/Day night star cycle?

Guy Fawkes

(Posted 2009) [#1]

can someone please post a zip file of the day to night / star cycle demo thats affected by real time of day or night. or A day to night / star cycle demo thats affected by real time of day or night?

i can't seem to find the old one anywhere online and i need it for the dynamic grass demo which im going to be adding to my project. so yea

Guy Fawkes

(Posted 2009) [#2]

ok guys. i have attempted to make my own day to night function. the problem is when it reaches 255 & the setnight variable is turned on, it doesnt let the numbers go back down to 0 like they should. and when it reaches 0 and the setday variable is turned on, it doesnt let them go back up like it should.

what am i doing wrong here & how can i fix this?

code:

while not keyhit(1)

daytonight()

    updateworld()
    renderworld()
  flip

wend

end

Function daytonight()
	If setday = 0 And setnight = 0

		sky_r# = sky_r# + 1*time#
		sky_g# = sky_g# + 1*time#
		sky_b# = sky_b# + 1*time#
		sky_alpha# = sky_alpha# - 1*alpha_time#

	EndIf

	If (sky_r# Or sky_g# Or sky_b#) > 255

			sky_r#=255
			sky_g#=255
			sky_b# = 255
			setnight = 1

		If setnight = 1 And (sky_r# And sky_g# And sky_b#) = 255

			sky_r# = sky_r# - 1*time#
			sky_g# = sky_g# - 1*time#
			sky_b# = sky_b# - 1*time#
			sky_alpha# = sky_alpha# + 1*alpha_time#

		EndIf
	EndIf

	If (sky_r# Or sky_g# Or sky_b#) < 0

			sky_r#=0
			sky_g#=0
			sky_b# = 0
			setday = 1

		If setday = 1 And (sky_r# And sky_g# And sky_b#) = 255

			sky_r# = sky_r# + 1*time#
			sky_g# = sky_g# + 1*time#
			sky_b# = sky_b# + 1*time#
			sky_alpha# = sky_alpha# - 1*alpha_time#
		EndIf
	EndIf

AmbientLight sky_r#, sky_g#, sky_b#

EntityAlpha sky, sky_alpha#

End Function

sorry if my code formatting is a bit off. i am more of a tab person than a space person :P

Guy Fawkes

(Posted 2009) [#3]

could someone show me also how to make a bright sun, and moon and rotate them?

thanks!

wmaass

(Posted 2009) [#4]

You need this:

http://www.blitzbasic.com/Community/posts.php?topic=87026

Guy Fawkes

(Posted 2009) [#5]

thanks wmaass!