Home » Archimedes archive » Acorn User » AU 1996-Xmas.adf » Features » Arcade/!Popcorn/c/ColCheck
Arcade/!Popcorn/c/ColCheck
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| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1996-Xmas.adf » Features |
| Filename: | Arcade/!Popcorn/c/ColCheck |
| Read OK: | ✔ |
| File size: | 04EB bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Archimedes archive » Acorn User » AU 1996-Xmas.adf » Features » Arcade/!Popcorn/c/ColCheck
- Archimedes archive » Acorn User » AU 1997-01 B.adf » Features » Arcade/!Popcorn/c/ColCheck
File contents
#include "Popcorn:h.Popcorn"
void Popcorn_CollisionCheck(struct object_table *t1,
struct object_table *t2)
{
int num1, num2;
union object_flags reason_collide;
reason_collide.word = 0;
reason_collide.bits.collide = 1;
if (t1->collisions == NULL || t2->collisions == NULL)
return;
num1 = 0;
while (num1 != t1->collisions->entries)
{
if (t1 != t2)
num2 = 0;
else
num2 = num1+1;
while (num2 != t2->collisions->entries)
{
if (
!(t1->collisions->collision[num1].y0 > t2->collisions->collision[num2].y1) &&
!(t1->collisions->collision[num1].y1 < t2->collisions->collision[num2].y0) &&
!(t1->collisions->collision[num1].x0 > t2->collisions->collision[num2].x1) &&
!(t1->collisions->collision[num1].x1 < t2->collisions->collision[num2].x0) )
( t1->collisions->collision[num1].back_ptr->handler)( (void*) t1->collisions->collision[num1].back_ptr, reason_collide, (void*) t2->collisions->collision[num2].back_ptr); /* Yuck... so I can't (void*) program! */
/* { */
/* printf("%X %X\n", t1->collisions->collision[num1].back_ptr, t1->collisions->collision[num1].back_ptr); */
/* } */
num2++;
}
num1++;
}
return;
}
00000000 23 69 6e 63 6c 75 64 65 20 22 50 6f 70 63 6f 72 |#include "Popcor|
00000010 6e 3a 68 2e 50 6f 70 63 6f 72 6e 22 0a 0a 76 6f |n:h.Popcorn"..vo|
00000020 69 64 20 50 6f 70 63 6f 72 6e 5f 43 6f 6c 6c 69 |id Popcorn_Colli|
00000030 73 69 6f 6e 43 68 65 63 6b 28 73 74 72 75 63 74 |sionCheck(struct|
00000040 20 6f 62 6a 65 63 74 5f 74 61 62 6c 65 20 2a 74 | object_table *t|
00000050 31 2c 0a 20 20 20 20 20 09 09 09 20 20 20 20 73 |1,. ... s|
00000060 74 72 75 63 74 20 6f 62 6a 65 63 74 5f 74 61 62 |truct object_tab|
00000070 6c 65 20 2a 74 32 29 0a 7b 0a 20 20 69 6e 74 09 |le *t2).{. int.|
00000080 20 09 09 20 20 20 20 6e 75 6d 31 2c 20 6e 75 6d | .. num1, num|
00000090 32 3b 0a 20 20 75 6e 69 6f 6e 20 6f 62 6a 65 63 |2;. union objec|
000000a0 74 5f 66 6c 61 67 73 09 20 20 20 20 72 65 61 73 |t_flags. reas|
000000b0 6f 6e 5f 63 6f 6c 6c 69 64 65 3b 0a 0a 20 20 72 |on_collide;.. r|
000000c0 65 61 73 6f 6e 5f 63 6f 6c 6c 69 64 65 2e 77 6f |eason_collide.wo|
000000d0 72 64 20 3d 20 30 3b 0a 20 20 72 65 61 73 6f 6e |rd = 0;. reason|
000000e0 5f 63 6f 6c 6c 69 64 65 2e 62 69 74 73 2e 63 6f |_collide.bits.co|
000000f0 6c 6c 69 64 65 20 3d 20 31 3b 0a 0a 20 20 69 66 |llide = 1;.. if|
00000100 20 28 74 31 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 | (t1->collisions|
00000110 20 3d 3d 20 4e 55 4c 4c 20 7c 7c 20 74 32 2d 3e | == NULL || t2->|
00000120 63 6f 6c 6c 69 73 69 6f 6e 73 20 3d 3d 20 4e 55 |collisions == NU|
00000130 4c 4c 29 0a 20 20 20 20 72 65 74 75 72 6e 3b 0a |LL). return;.|
00000140 0a 20 20 6e 75 6d 31 20 3d 20 30 3b 0a 20 20 77 |. num1 = 0;. w|
00000150 68 69 6c 65 20 28 6e 75 6d 31 20 21 3d 20 74 31 |hile (num1 != t1|
00000160 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 2d 3e 65 6e |->collisions->en|
00000170 74 72 69 65 73 29 0a 20 20 7b 0a 20 20 20 20 69 |tries). {. i|
00000180 66 20 28 74 31 20 21 3d 20 74 32 29 0a 20 20 20 |f (t1 != t2). |
00000190 20 20 20 6e 75 6d 32 20 3d 20 30 3b 0a 20 20 20 | num2 = 0;. |
000001a0 20 65 6c 73 65 0a 20 20 20 20 20 20 6e 75 6d 32 | else. num2|
000001b0 20 3d 20 6e 75 6d 31 2b 31 3b 0a 20 20 20 20 77 | = num1+1;. w|
000001c0 68 69 6c 65 20 28 6e 75 6d 32 20 21 3d 20 74 32 |hile (num2 != t2|
000001d0 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 2d 3e 65 6e |->collisions->en|
000001e0 74 72 69 65 73 29 0a 20 20 20 20 7b 0a 20 20 20 |tries). {. |
000001f0 20 20 20 69 66 20 28 0a 20 20 20 20 20 20 21 28 | if (. !(|
00000200 74 31 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 2d 3e |t1->collisions->|
00000210 63 6f 6c 6c 69 73 69 6f 6e 5b 6e 75 6d 31 5d 2e |collision[num1].|
00000220 79 30 20 3e 20 74 32 2d 3e 63 6f 6c 6c 69 73 69 |y0 > t2->collisi|
00000230 6f 6e 73 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 5b 6e |ons->collision[n|
00000240 75 6d 32 5d 2e 79 31 29 20 26 26 0a 20 20 20 20 |um2].y1) &&. |
00000250 20 20 21 28 74 31 2d 3e 63 6f 6c 6c 69 73 69 6f | !(t1->collisio|
00000260 6e 73 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 5b 6e 75 |ns->collision[nu|
00000270 6d 31 5d 2e 79 31 20 3c 20 74 32 2d 3e 63 6f 6c |m1].y1 < t2->col|
00000280 6c 69 73 69 6f 6e 73 2d 3e 63 6f 6c 6c 69 73 69 |lisions->collisi|
00000290 6f 6e 5b 6e 75 6d 32 5d 2e 79 30 29 20 26 26 0a |on[num2].y0) &&.|
000002a0 20 20 20 20 20 20 21 28 74 31 2d 3e 63 6f 6c 6c | !(t1->coll|
000002b0 69 73 69 6f 6e 73 2d 3e 63 6f 6c 6c 69 73 69 6f |isions->collisio|
000002c0 6e 5b 6e 75 6d 31 5d 2e 78 30 20 3e 20 74 32 2d |n[num1].x0 > t2-|
000002d0 3e 63 6f 6c 6c 69 73 69 6f 6e 73 2d 3e 63 6f 6c |>collisions->col|
000002e0 6c 69 73 69 6f 6e 5b 6e 75 6d 32 5d 2e 78 31 29 |lision[num2].x1)|
000002f0 20 26 26 0a 20 20 20 20 20 20 21 28 74 31 2d 3e | &&. !(t1->|
00000300 63 6f 6c 6c 69 73 69 6f 6e 73 2d 3e 63 6f 6c 6c |collisions->coll|
00000310 69 73 69 6f 6e 5b 6e 75 6d 31 5d 2e 78 31 20 3c |ision[num1].x1 <|
00000320 20 74 32 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 2d | t2->collisions-|
00000330 3e 63 6f 6c 6c 69 73 69 6f 6e 5b 6e 75 6d 32 5d |>collision[num2]|
00000340 2e 78 30 29 20 20 20 20 20 20 29 0a 20 20 20 20 |.x0) ). |
00000350 20 20 20 20 28 20 74 31 2d 3e 63 6f 6c 6c 69 73 | ( t1->collis|
00000360 69 6f 6e 73 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 5b |ions->collision[|
00000370 6e 75 6d 31 5d 2e 62 61 63 6b 5f 70 74 72 2d 3e |num1].back_ptr->|
00000380 68 61 6e 64 6c 65 72 29 28 20 28 76 6f 69 64 2a |handler)( (void*|
00000390 29 20 74 31 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 |) t1->collisions|
000003a0 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 5b 6e 75 6d 31 |->collision[num1|
000003b0 5d 2e 62 61 63 6b 5f 70 74 72 2c 20 72 65 61 73 |].back_ptr, reas|
000003c0 6f 6e 5f 63 6f 6c 6c 69 64 65 2c 20 28 76 6f 69 |on_collide, (voi|
000003d0 64 2a 29 20 74 32 2d 3e 63 6f 6c 6c 69 73 69 6f |d*) t2->collisio|
000003e0 6e 73 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 5b 6e 75 |ns->collision[nu|
000003f0 6d 32 5d 2e 62 61 63 6b 5f 70 74 72 29 3b 20 2f |m2].back_ptr); /|
00000400 2a 20 59 75 63 6b 2e 2e 2e 20 73 6f 20 49 20 63 |* Yuck... so I c|
00000410 61 6e 27 74 20 28 76 6f 69 64 2a 29 20 70 72 6f |an't (void*) pro|
00000420 67 72 61 6d 21 20 2a 2f 0a 2f 2a 20 20 20 20 20 |gram! */./* |
00000430 20 20 7b 20 2a 2f 0a 2f 2a 20 20 20 20 20 20 20 | { */./* |
00000440 20 20 70 72 69 6e 74 66 28 22 25 58 20 25 58 5c | printf("%X %X\|
00000450 6e 22 2c 20 74 31 2d 3e 63 6f 6c 6c 69 73 69 6f |n", t1->collisio|
00000460 6e 73 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 5b 6e 75 |ns->collision[nu|
00000470 6d 31 5d 2e 62 61 63 6b 5f 70 74 72 2c 20 74 31 |m1].back_ptr, t1|
00000480 2d 3e 63 6f 6c 6c 69 73 69 6f 6e 73 2d 3e 63 6f |->collisions->co|
00000490 6c 6c 69 73 69 6f 6e 5b 6e 75 6d 31 5d 2e 62 61 |llision[num1].ba|
000004a0 63 6b 5f 70 74 72 29 3b 20 2a 2f 0a 2f 2a 20 20 |ck_ptr); */./* |
000004b0 20 20 20 20 20 7d 20 2a 2f 0a 0a 20 20 20 20 20 | } */.. |
000004c0 20 6e 75 6d 32 2b 2b 3b 0a 20 20 20 20 7d 0a 20 | num2++;. }. |
000004d0 20 20 20 6e 75 6d 31 2b 2b 3b 0a 20 20 7d 0a 20 | num1++;. }. |
000004e0 20 72 65 74 75 72 6e 3b 0a 7d 0a | return;.}.|
000004eb 
.