Jumping - new topic originating from Mr. Flanksteak

[+atari2600land]

I studied the matario code and got this...

10 set smartbranching on
20 a=0 : rem vertical position
30 b=0 : rem jump height
40 d=0 : rem sprite def
50 e=0 : rem framecounter
60 rem define player x, y pos
65 x=66 : y=66 : t=0
68 player0:
 %00101000
 %00101000
 %00010000
 %00111000
 %00010000
 %00111000
 %00101000
 %00111000
end
70 drawscreen
75 player0x = x : player0y = y
80 rem define colors/playfield
92 COLUP1= 0 : COLUBK = 15 : COLUPF = 7
95 if joy0fire then a=5
96 if a=5 then y=y-2 : b=b+1
100 if b > 25 then a=6 : b=0
110 if a=6 then y=y+2
130 goto 70

...but there's no ground! If I'm missing something, please tell me what! BTW, the t variable isn't being used.

Edited June 23, 2006 by atari2600land