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Offline bplus

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Spawn 2 variation 1
« on: September 10, 2020, 09:47:13 pm »
Meteor shower with more 3D effect:
Code: QB64: [Select]
  1. _TITLE "Spawn 2 variation 1" 'b+ mod 2020-09-10
  2. CONST angle = _PI(3 / 4)
  3. TYPE Meteor
  4.     X AS INTEGER
  5.     Y AS INTEGER
  6.     dx AS SINGLE
  7.     dy AS SINGLE
  8.     mag AS SINGLE ' ah ha sizes
  10.  
  11. SCREEN _NEWIMAGE(1200, 720, 32)
  12. _DELAY .25 'allow screen to load
  14. Stars& = _LOADIMAGE("stars.png")
  15. M& = _LOADIMAGE("meteor.png")
  16.  
  17. ' filter out dark space
  18. newM& = _NEWIMAGE(_WIDTH(M&), _HEIGHT(M&), 32)
  21. _DEST newM&
  22. FOR y = 0 TO _HEIGHT(M&)
  23.     FOR x = 0 TO _WIDTH(M&)
  24.         p = POINT(x, y)
  25.         pr = _RED32(p)
  26.         pg = _GREEN32(p)
  27.         pb = _BLUE32(p)
  28.         IF pr > 25 AND pg > 25 AND pb > 30 THEN PSET (x, y), p ELSE PSET (x, y), &H00000000
  29.     NEXT
  34.  
  35. REDIM SHARED spawn(0) AS Meteor, rock AS Meteor
  36. FOR i = 1 TO 100 'make a rock and then load it into spawn array with smallest listed first and biggest last
  37.     rock.X = .5 * _WIDTH + 1000 * RND
  38.     rock.Y = -1000 * RND - 100
  39.     rock.mag = RND * 2 + .2
  40.     r = (RND * 10 + 2)
  41.     rock.dx = rock.mag * r * COS(angle)
  42.     rock.dy = rock.mag * r * SIN(angle)
  43.  
  44.     'load rock from smallest to largest so when display the bigger ones will be drawn last and be "up front"
  45.     loadSort rock, spawn()
  47.  
  49.     _PUTIMAGE , Stars&, 0
  50.     FOR i = 1 TO 100
  51.         spawn(i).X = spawn(i).X + spawn(i).dx
  52.         spawn(i).Y = spawn(i).Y + spawn(i).dy
  53.         IF spawn(i).X < -200 OR spawn(i).Y > _HEIGHT + 150 THEN reincarnateSpawn i
  54.         _PUTIMAGE (spawn(i).X, spawn(i).Y)-STEP(spawn(i).mag * _WIDTH(newM&), spawn(i).mag * _HEIGHT(newM&)), newM&, 0
  55.     NEXT
  56.     _DISPLAY
  57.     _LIMIT 60
  58. LOOP UNTIL _KEYDOWN(27) 'escape
  59.  
  60. SUB reincarnateSpawn (i)
  61.     spawn(i).X = .5 * _WIDTH + 1000 * RND
  62.     spawn(i).Y = -1000 * RND - 100
  64.  
  65. SUB loadSort (insertN AS Meteor, dynArr() AS Meteor) '  mod for meteor
  66.     'note this leaves dynArr(0) empty! so ubound of array is also number of items in list
  67.     DIM ub, j, k
  68.     ub = UBOUND(dynArr) + 1
  69.     REDIM _PRESERVE dynArr(LBOUND(dynArr) TO ub) AS Meteor
  70.     FOR j = 1 TO ub - 1
  71.         IF insertN.mag < dynArr(j).mag THEN '  GT to LT according to descending or ascending sort
  72.             FOR k = ub TO j + 1 STEP -1
  73.                 dynArr(k) = dynArr(k - 1)
  74.             NEXT
  75.             EXIT FOR
  76.         END IF
  77.     NEXT
  78.     dynArr(j) = insertN
  80.  

 
spawn 2.PNG


EDIT: Oh, ha, read my notes on LoadSort and reminded the ubound IS the actual number of Items in the array. The array(0) is empty. So one more meteor now showing, just replace this code with bas file in zip which only showed 99% of the meteors ;-))
« Last Edit: September 10, 2020, 10:02:17 pm by bplus »
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Offline bplus

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Re: Spawn 2 variation 1
« Reply #1 on: September 11, 2020, 10:49:22 am »
Oh dang! Forgot the zip, here it is!
* Spawn 2 var 1.zip (Filesize: 760.83 KB, Downloads: 248)
« Last Edit: September 11, 2020, 10:53:21 am by bplus »
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Offline bplus

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Re: Spawn 2 variation 1
« Reply #2 on: September 13, 2020, 12:02:53 am »
Another variation com'in at you!



* Aster.zip (Filesize: 33.52 KB, Downloads: 236)
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Offline TempodiBasic

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Re: Spawn 2 variation 1
« Reply #3 on: September 13, 2020, 06:32:21 am »
Hey Bplus
Let me say that your creativity is wonderful!
I'm doping myself with caffeine... so you?  :-)
I find wonderful also the transpareny of images  versus background!
Thanks for these variations of main theme!

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Offline TempodiBasic

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Re: Spawn 2 variation 1
« Reply #4 on: September 13, 2020, 06:36:08 am »
Moreover Bplus
your fantastic demo of traveling in 3D is very enjoyable!
If you revert the direction  CoderVSB12  have the work already done!
Waiting your version of Blaster!  ;-)
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Offline bplus

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Re: Spawn 2 variation 1
« Reply #5 on: September 13, 2020, 11:09:14 am »
Quote from: TempodiBasic on September 13, 2020, 06:36:08 am
Moreover Bplus
your fantastic demo of traveling in 3D is very enjoyable!
If you revert the direction  CoderVSB12  have the work already done!
Waiting your version of Blaster!  ;-)

Thanks @TempodiBasic

Quote
If you revert the direction

Wow, I thought that was the required direction!   need more coffee :)
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Offline bplus

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Re: Spawn 2 variation 1
« Reply #6 on: September 13, 2020, 11:21:26 am »
OK this time I forgot the code to Aster, short for Asteroids  (image in zip package Reply #2)

Code: QB64: [Select]
  1. _TITLE "Astera" 'b+ mod 2020-09-12
  2. CONST nRocks = 100
  3. TYPE rock
  4.     X AS SINGLE
  5.     Y AS SINGLE
  6.     Z AS SINGLE
  7.     dx AS SINGLE
  8.     dy AS SINGLE
  9.     dz AS SINGLE 'mag
  11.  
  12. SCREEN _NEWIMAGE(1200, 720, 32)
  13. _DELAY .25 'allow screen to load
  15. M& = _LOADIMAGE("aster.png")
  16.  
  17. ' filter out dark space
  18. newM& = _NEWIMAGE(_WIDTH(M&), _HEIGHT(M&), 32)
  21. _DEST newM&
  22. FOR y = 0 TO _HEIGHT(M&)
  23.     FOR x = 0 TO _WIDTH(M&)
  24.         p = POINT(x, y)
  25.         pr = _RED32(p)
  26.         pg = _GREEN32(p)
  27.         pb = _BLUE32(p)
  28.         IF _HYPOT(x - _WIDTH(M&) / 2, y - _HEIGHT(M&) / 2) > _WIDTH / 2 * .7 THEN
  29.             IF pr > 35 AND pg > 35 AND pb > 35 THEN PSET (x, y), p ELSE PSET (x, y), &H00000000
  30.         ELSE
  31.             PSET (x, y), p
  32.         END IF
  33.     NEXT
  35.  
  39. DIM SHARED r(nRocks) AS rock
  40. FOR i = 0 TO nRocks
  41.     new i
  44.     CLS
  45.     'FOR y = 0 TO _HEIGHT    ' optional gray static background that really slows thing down
  46.     '    FOR x = 0 TO _WIDTH
  47.     '        r = RND * 55
  48.     '        LINE (x, y)-STEP(0, 0), _RGB32(r, r, r, RND * 50 + 150)
  49.     '    NEXT
  50.     'NEXT
  51.     FOR i = 0 TO nRocks
  52.         r(i).dx = r(i).dx * 1.05
  53.         r(i).dy = r(i).dy * 1.05
  54.         r(i).X = r(i).X + r(i).dx
  55.         r(i).Y = r(i).Y + r(i).dy
  56.         r(i).Z = r(i).Z + .2
  57.         IF r(i).X < -200 OR r(i).X > _WIDTH OR r(i).Y > _HEIGHT OR r(i).Y < -200 THEN new i
  58.     NEXT
  59.     QSort 0, nRocks
  60.     FOR i = 0 TO nRocks
  61.         _PUTIMAGE (r(i).X - .5 * r(i).Z / 10 * _WIDTH(newM&), r(i).Y - .5 * r(i).Z / 10 * _HEIGHT(newM&))-STEP(r(i).Z / 10 * _WIDTH(newM&), r(i).Z / 10 * _HEIGHT(newM&)), newM&, 0
  62.     NEXT
  63.     _DISPLAY
  64.     _LIMIT 40
  65. LOOP UNTIL _KEYDOWN(27) 'escape
  66.  
  67. SUB new (i)
  68.     r(i).X = _WIDTH * RND
  69.     r(i).Y = _HEIGHT * RND
  70.     r(i).Z = 1
  71.     angle = _ATAN2(r(i).Y - _HEIGHT / 2, r(i).X - _WIDTH / 2)
  72.     d = _HYPOT(r(i).Y - _HEIGHT / 2, r(i).X - _WIDTH / 2)
  73.     r(i).dx = d / 100 * COS(angle)
  74.     r(i).dy = d / 100 * SIN(angle)
  76.  
  77. SUB QSort (Start, Finish) 'sa$ needs to be   DIM SHARED !!!!     array
  78.     DIM i AS INTEGER, j AS INTEGER, x$, a$
  79.     i = Start
  80.     j = Finish
  81.     x = r(INT((i + j) / 2)).Z
  82.     WHILE i <= j
  83.         WHILE r(i).Z < x
  84.             i = i + 1
  85.         WEND
  86.         WHILE r(j).Z > x
  87.             j = j - 1
  88.         WEND
  89.         IF i <= j THEN
  90.             SWAP r(i), r(j)
  91.             i = i + 1
  92.             j = j - 1
  93.         END IF
  94.     WEND
  95.     IF j > Start THEN QSort Start, j
  96.     IF i < Finish THEN QSort i, Finish
  98.  

Changes from first code:
1) Well the direction first of all, this is exactly like moving through Starfield.
2) Image when I removed all dark colors I lost the black in craters of asteroid so I restricted transparent color setting to a radius past some percentage of width of image from center of image. Cool asteroid right?
3) Then used Qsort to get the sizes arranged to draw smallest first because they are in background.

Never did use dz ;-)) could say it was .2 for all because that was added to r(i).Z every loop until it went off screen.

« Last Edit: September 13, 2020, 11:43:20 am by bplus »
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Offline TempodiBasic

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Re: Spawn 2 variation 1
« Reply #7 on: September 13, 2020, 06:10:06 pm »
Good! New features... but now in black and white the asteroid image is more similar to a skull!
Yes you don't use dz but you already have not changed the direction of  asteroids.
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Offline TempodiBasic

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Re: Spawn 2 variation 1
« Reply #8 on: September 13, 2020, 08:08:19 pm »
Ok Bplus I understand that you are too busy... so I make this mod of your opera

Code: QB64: [Select]
  1. _TITLE "Astera" 'b+ mod 2020-09-12 ' TdB mod 2020-09-14
  2. CONST nRocks = 5 '<--- better less meteors
  3. TYPE rock
  4.     X AS SINGLE
  5.     Y AS SINGLE
  6.     Z AS SINGLE
  7.     dx AS SINGLE
  8.     dy AS SINGLE
  9.     dz AS SINGLE 'mag
  11.  
  12. SCREEN _NEWIMAGE(1200, 720, 32)
  13. _DELAY .25 'allow screen to load
  15. M& = _LOADIMAGE("aster.png")
  16.  
  17. ' filter out dark space
  18. newM& = _NEWIMAGE(_WIDTH(M&), _HEIGHT(M&), 32)
  21. _DEST newM&
  22. FOR y = 0 TO _HEIGHT(M&)
  23.     FOR x = 0 TO _WIDTH(M&)
  24.         p = POINT(x, y)
  25.         pr = _RED32(p)
  26.         pg = _GREEN32(p)
  27.         pb = _BLUE32(p)
  28.         IF _HYPOT(x - _WIDTH(M&) / 2, y - _HEIGHT(M&) / 2) > _WIDTH / 2 * .7 THEN
  29.             IF pr > 35 AND pg > 35 AND pb > 35 THEN PSET (x, y), p ELSE PSET (x, y), &H00000000
  30.         ELSE
  31.             PSET (x, y), p
  32.         END IF
  33.     NEXT
  35.  
  39. DIM SHARED r(nRocks) AS rock
  40. FOR i = 0 TO nRocks
  41.     new i
  44.     CLS
  45.     'FOR y = 0 TO _HEIGHT
  46.     '    FOR x = 0 TO _WIDTH
  47.     '        r = RND * 55
  48.     '        LINE (x, y)-STEP(0, 0), _RGB32(r, r, r, RND * 50 + 150)
  49.     '    NEXT
  50.     'NEXT
  51.     FOR i = 0 TO nRocks
  52.         r(i).dx = r(i).dx * .80 '<--- we reduce acceleration X as far is the meteor
  53.         r(i).dy = r(i).dy * .80 '<--- we reduce acceleration Y as far is the meteor
  54.         r(i).X = r(i).X + r(i).dx
  55.         r(i).Y = r(i).Y + r(i).dy
  56.         r(i).Z = r(i).Z - .2 ' <--- we go away from camera/point of view of user
  57.  
  58.         ' |
  59.         ' V and we must regenerate the meteor if it is too far from our point of view
  60.         IF r(i).X < -200 OR r(i).X > _WIDTH OR r(i).Y > _HEIGHT OR r(i).Y < -200 OR r(i).Z < 0.000001 THEN new i
  61.     NEXT
  62.     QSort 0, nRocks
  63.     FOR i = 0 TO nRocks
  64.         _PUTIMAGE (r(i).X - .5 * r(i).Z / 10 * _WIDTH(newM&), r(i).Y - .5 * r(i).Z / 10 * _HEIGHT(newM&))-STEP(r(i).Z / 10 * _WIDTH(newM&), r(i).Z / 10 * _HEIGHT(newM&)), newM&, 0
  65.     NEXT
  66.     _DISPLAY
  67.     _LIMIT 40
  68. LOOP UNTIL _KEYDOWN(27) 'escape
  69.  
  70. SUB new (i)
  71.     r(i).X = _WIDTH * RND
  72.     r(i).Y = _HEIGHT * RND
  73.     r(i).Z = 50 '<--- our meteor is next to our point of view
  74.     angle = _ATAN2(r(i).Y - _HEIGHT / 2, r(i).X - _WIDTH / 2)
  75.     d = _HYPOT(r(i).Y - _HEIGHT / 2, r(i).X - _WIDTH / 2)
  76.     r(i).dx = d / 100 * COS(angle)
  77.     r(i).dy = d / 100 * SIN(angle)
  79.  
  80. SUB QSort (Start, Finish) 'sa$ needs to be   DIM SHARED !!!!     array
  81.     DIM i AS INTEGER, j AS INTEGER, x$, a$
  82.     i = Start
  83.     j = Finish
  84.     x = r(INT((i + j) / 2)).Z
  85.     WHILE i <= j
  86.         WHILE r(i).Z < x
  87.             i = i + 1
  88.         WEND
  89.         WHILE r(j).Z > x
  90.             j = j - 1
  91.         WEND
  92.         IF i <= j THEN
  93.             SWAP r(i), r(j)
  94.             i = i + 1
  95.             j = j - 1
  96.         END IF
  97.     WEND
  98.     IF j > Start THEN QSort Start, j
  99.     IF i < Finish THEN QSort i, Finish
  101.  
it uses the same image of course ... so the skull is always there
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Offline bplus

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Re: Spawn 2 variation 1
« Reply #9 on: September 13, 2020, 09:51:17 pm »
@TempodiBasic Well you really did reverse the direction. But I swear in video I saw, they were flying into the shooting zone! ??

That image is something isn't it? ! Your close ups make it all the more amazing to me.
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Offline bplus

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Re: Spawn 2 variation 1
« Reply #10 on: September 13, 2020, 10:20:44 pm »
@TempodiBasic  OHHH!!! you are looking at the bullets shooting out from the user location, right?

They start big and shrink down to horizon, I was thinking of enemy or asteroid fields you are flying into where you meet up with objects to shoot at.
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Offline TempodiBasic

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Re: Spawn 2 variation 1
« Reply #11 on: September 14, 2020, 02:52:38 pm »
Your thought is right, also now
the request was this https://www.qb64.org/forum/index.php?topic=3007.msg122699#msg122699
the more adjustment  of the algorythm will be coded by the main interested coder...
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