11-05-2004, 09:55 PM
Hi!
I'm trying to make very simple 3D game on screen 12, but I have some problems.
1. Flickering! I can't stand it!! How can I make it, so It won't flicked?
2. When I put 10 rotating squares into my game, it works EXTREAMLY SLOW!!!
about 1-2 frames/sec. Why? I have seen qbasic 3D games that does have big world and doesn't work so slow!
3. I'm trying to make .1 view shooter. I the all rotations work great exept when I need to turn for example right it moves very strange! Is there any tutorial who explains how much angles and how do I need to rotate when I wan't to turn!
4. for example I have a rotating square, how can I make it filled with some color?
5. When I try to walk into my 3D world, the controls work realy offull. When I press for example 'w' key to go forword, the control doesn't allways work!!
I know its more that one question, but I realy need answers!!! Here is my 3D code:
Please help me! The most imporant is the right/left rotation problem and flickering! Thank you very much!!!
I'm trying to make very simple 3D game on screen 12, but I have some problems.
1. Flickering! I can't stand it!! How can I make it, so It won't flicked?
2. When I put 10 rotating squares into my game, it works EXTREAMLY SLOW!!!
about 1-2 frames/sec. Why? I have seen qbasic 3D games that does have big world and doesn't work so slow!
3. I'm trying to make .1 view shooter. I the all rotations work great exept when I need to turn for example right it moves very strange! Is there any tutorial who explains how much angles and how do I need to rotate when I wan't to turn!
4. for example I have a rotating square, how can I make it filled with some color?
5. When I try to walk into my 3D world, the controls work realy offull. When I press for example 'w' key to go forword, the control doesn't allways work!!
I know its more that one question, but I realy need answers!!! Here is my 3D code:
Code:
DECLARE SUB control (theta, phi, x.center, y.center, z.center)
DIM speed AS INTEGER: speed = 20
SCREEN 12
th = 180
ph = 1
x.cnt = 300
y.cnt = 200
z.cnt = 256
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
DO
SELECT CASE INKEY$:
CASE "a"
IF th = 360 THEN th = 0
th = th + i
x.cnt = x.cnt + i
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "d"
IF th = 0 THEN th = 360
th = th - i
x.cnt = x.cnt - i
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "w"
z.cnt = z.cnt + i
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "s"
z.cnt = z.cnt + speed
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "q"
x.cnt = x.cnt + speed
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "e"
x.cnt = x.cnt - speed
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "r"
IF ph = 360 THEN ph = 0
ph = ph + speed
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
CASE "f"
IF ph = 0 THEN ph = 360
ph = ph - speed
CALL control(th, ph, x.cnt, y.cnt, z.cnt)
END SELECT
LOOP UNTIL INKEY$ = CHR$(27)
CLS
SUB control (theta, phi, x.center, y.center, z.center)
CLS
DIM points: points = 7
DIM c!(360)
DIM s!(360)
DIM x.fr(points), y.fr(points), z.fr(points)
DIM x.new(points), y.new(points)
DIM x(points), y(points), z(points)
x(0) = 50
y(0) = 50
z(0) = -50
x(1) = -50
y(1) = -50
z(1) = -50
x(2) = -50
y(2) = 50
z(2) = -50
x(3) = 50
y(3) = -50
z(3) = -50
x(4) = 50
y(4) = 50
z(4) = 50
x(5) = -50
y(5) = -50
z(5) = 50
x(6) = -50
y(6) = 50
z(6) = 50
x(7) = 50
y(7) = -50
z(7) = 50
FOR angle = 1 TO 360
c!(angle) = COS(angle * 3.14 / 180)
s!(angle) = SIN(angle * 3.14 / 180)
NEXT
FOR i = 0 TO points
x.fr(i) = -x(i) * s!(theta) + y(i) * c!(theta)
y.fr(i) = -x(i) * c!(theta) * s!(phi) - y(i) * s!(theta) * s!(phi) - z(i) * c!(phi)
z.fr(i) = -x(i) * c!(theta) * c!(phi) - y(i) * s!(theta) * c!(phi) + z(i) * s!(phi)
x.new(i) = INT(256 * (x.fr(i) / (z.fr(i) + z.center)) + x.center)
y.new(i) = INT(256 * (y.fr(i) / (z.fr(i) + z.center)) + y.center)
CIRCLE (x.new(i), y.new(i)), 2, 10
NEXT
END SUBPlease help me! The most imporant is the right/left rotation problem and flickering! Thank you very much!!!
