Home » Archimedes archive » Acorn User » AU 1996-Xmas.adf » Features » Arcade/!Gush/c/gush
Arcade/!Gush/c/gush
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1996-Xmas.adf » Features |
| Filename: | Arcade/!Gush/c/gush |
| Read OK: | ✔ |
| File size: | 19A0 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
/* Gush demo
**
** Demonstrates the object handling features of Popcorn. If you're getting
** started with Popcorn, print this listing out and start studying it from
** main().
*/
#include <stdlib.h>
#include "DeskLib:h.File"
#include "DeskLib:h.Gfx"
#include "DeskLib:h.Kbd"
#include "DeskLib:h.SWI"
#include "Popcorn:h.Popcorn"
#define random(n) (rand() % (n))
struct object_table *blue_table, *yellow_table;
void *blue_sprite, *yellow_sprite;
/* ball_handler and generator_handler are two typical object handlers for
** a Popcorn object. They contain separate little if() clauses to deal
** with each condition they could be called under. One or many of these
** conditions could be TRUE; a handler can be called for more than one
** reason at a time.
*/
void ball_handler(struct game_object *obj, union object_flags flags, void *ref)
{
if (flags.bits.attn_plotout) /* i.e. if ball is off the screen */
{
if (obj->x < 0 || obj->x > 319<<12) /* Bounce x velocity */
obj->xv = -obj->xv;
if (obj->y < 0 || obj->y > 255<<12) /* Bounce y velocity */
{
obj->yv = -obj->yv;
/*
** This next line is needed to stop jittering of objects when they hit
** the bottom of the screen. The jittering is caused by the effects of
** gravity; well, just remove this line and see what happens...
*/
obj->y = obj->y + obj->yv;
}
}
/* Delete both balls if they collide; if the handler is being called for
** a collision, 'ref' will be a pointer to the other object
*/
if (flags.bits.collide)
{
Popcorn_DeleteObject(obj);
Popcorn_DeleteObject((struct game_object*) ref);
}
}
/* generator_handler gets called every frame, and its only purpose is to
** spew balls out, so we don't need an if (obj->flags.bits.attn_every)
** clause, since it's implicit.
*/
void generator_handler(struct game_object *obj, union object_flags *flags, void *ref)
{
struct game_object *ball;
if ( (rand() & 3) == 0 ) /* This makes the spewing more erratic */
return;
ball = Popcorn_NewObject(obj->user_data);
if (ball == NULL) return; /* This happens when the table is full */
/* A kludge, due to the fact that there's no way you can tell from an
** object which table it's in. A flaw in the Popcorn design; something
** to fix for next time...
**
** Seeing as the generators' sole purpose is to spew balls out, we can
** use their position and velocity as templates for new balls. So each
** ball takes on the x,y and xv,yv attributes of the generator it comes
** from (the velocity has a small random element added).
*/
if (obj->user_data == blue_table)
ball->plot_id.sprite_anchor = &blue_sprite;
else
ball->plot_id.sprite_anchor = &yellow_sprite;
ball->object_id = 1;
ball->x = obj->x; ball->y = obj->y;
ball->xv = obj->xv + (random(4096)-2048);
ball->yv = obj->yv + (random(4096)-2048);
ball->flags.word = 0;
ball->flags.bits.std_plot = ball->flags.bits.velocities =
ball->flags.bits.collide = ball->flags.bits.gravity =
ball->flags.bits.attn_plotout = 1;
ball->handler = (object_handler) ball_handler;
ball->size.x = ball->size.y = 8;
ball->plot_offset.x = ball->plot_offset.y = 4;
}
int main(void)
{
int frames = 1, start_time, end_time;
struct game_object *temp_obj;
/* Change to mode 13 with space for two screen banks (OS_Byte 114,0) */
SWI(2, 0, SWI_OS_Byte, 114, 0);
GFX_Mode(13);
SWI(0, 0, SWI_OS_RemoveCursors);
SWI(2, 0, SWI_OS_Byte, 229, 1);
/* Initialise Popcorn sprite plotter, clear screen, and make space for
** two tables, one for blue balls, one for yellow. Then set the gravity
** on each to a moderate value (remember 4096 Popcorn units = 1 pixel)
*/
Popcorn_ReadScreenDetails();
Popcorn_ClearScreen(0);
SWI(2, 0, SWI_OS_Byte, 112, 1);
SWI(2, 0, SWI_OS_Byte, 113, 1);
blue_table = Popcorn_NewTable(200, TRUE);
yellow_table = Popcorn_NewTable(200, TRUE);
blue_table->grav_y = yellow_table->grav_y = 256;
/* Load blue and yellow ball sprite files */
blue_sprite = malloc(File_Size("<Gush$Dir>.Graphics.Blue"));
yellow_sprite = malloc(File_Size("<Gush$Dir>.Graphics.Yellow"));
File_LoadTo("<Gush$Dir>.Graphics.Blue", blue_sprite, NULL);
File_LoadTo("<Gush$Dir>.Graphics.Yellow", yellow_sprite, NULL);
/* Create 'generator' objects; these are good examples of where an object
** isn't seen, but has an important job. The generator handler is called
** every frame to spew a ball out; the effect of this is that balls appear
** from the two corners of the screen, where the generators are.
**
** N.B. Popcorn_NewObject only finds *space* for an object in a table; the
** actual data inside the object will be garbage. Also that the
** tabling routines judge an object space to be empty if the object_id
** field = 0; so this *must* contain a non-zero value when you've
** finished creating the object.
**
** Last thing to remember about object co-ordinates and velocities
** is that they are stored shifted left 12 bits; so we can move things
** around by half-pixels. The game windows are NOT, however.
*/
temp_obj = Popcorn_NewObject(blue_table);
temp_obj->object_id = 1;
temp_obj->flags.word = 0;
temp_obj->flags.bits.attn_every = 1;
temp_obj->x = temp_obj->y = 10<<12;
temp_obj->xv = temp_obj->yv = 4096;
temp_obj->handler = (object_handler) generator_handler;
temp_obj->user_data = blue_table;
temp_obj = Popcorn_NewObject(yellow_table);
temp_obj->object_id = 1;
temp_obj->flags.word = 0;
temp_obj->flags.bits.attn_every = 1;
temp_obj->x = 309<<12; temp_obj->y = 10<<12;
temp_obj->xv = -4096; temp_obj->yv = 4096;
temp_obj->handler = (object_handler) generator_handler;
temp_obj->user_data = yellow_table;
/* Main loop; this is similar to the 'spotlight' demo in that it uses the
** speed compensation techniques mentioned last month. Popcorn_Process
** calls the relevant objects' handlers when they need attention; see the
** definitions above for what each handler does.
*/
do {
SWI(0, 1, SWI_OS_ReadMonotonicTime, &start_time);
Popcorn_ClearScreen(0);
Popcorn_Process(blue_table, TRUE, frames);
Popcorn_Process(yellow_table, TRUE, frames);
Popcorn_CollisionCheck(blue_table, yellow_table);
do
{
SWI(0, 1, SWI_OS_ReadMonotonicTime, &end_time);
frames = (end_time - start_time) >> 1;
} while (frames == 0);
SWI(1, 0, SWI_OS_Byte, 19);
Popcorn_SwapBanks();
} while (!(Kbd_KeyDown(-113) && Kbd_KeyDown(-2)));
return(0);
}
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00000010 2a 2a 20 44 65 6d 6f 6e 73 74 72 61 74 65 73 20 |** Demonstrates |
00000020 74 68 65 20 6f 62 6a 65 63 74 20 68 61 6e 64 6c |the object handl|
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00000040 50 6f 70 63 6f 72 6e 2e 20 20 49 66 20 79 6f 75 |Popcorn. If you|
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00000060 74 61 72 74 65 64 20 77 69 74 68 20 50 6f 70 63 |tarted with Popc|
00000070 6f 72 6e 2c 20 70 72 69 6e 74 20 74 68 69 73 20 |orn, print this |
00000080 6c 69 73 74 69 6e 67 20 6f 75 74 20 61 6e 64 20 |listing out and |
00000090 73 74 61 72 74 20 73 74 75 64 79 69 6e 67 20 69 |start studying i|
000000a0 74 20 66 72 6f 6d 0a 2a 2a 20 6d 61 69 6e 28 29 |t from.** main()|
000000b0 2e 0a 2a 2f 0a 0a 23 69 6e 63 6c 75 64 65 20 3c |..*/..#include <|
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000000e0 69 6c 65 22 0a 23 69 6e 63 6c 75 64 65 20 22 44 |ile".#include "D|
000000f0 65 73 6b 4c 69 62 3a 68 2e 47 66 78 22 0a 23 69 |eskLib:h.Gfx".#i|
00000100 6e 63 6c 75 64 65 20 22 44 65 73 6b 4c 69 62 3a |nclude "DeskLib:|
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00000120 22 44 65 73 6b 4c 69 62 3a 68 2e 53 57 49 22 0a |"DeskLib:h.SWI".|
00000130 0a 23 69 6e 63 6c 75 64 65 20 22 50 6f 70 63 6f |.#include "Popco|
00000140 72 6e 3a 68 2e 50 6f 70 63 6f 72 6e 22 0a 0a 23 |rn:h.Popcorn"..#|
00000150 64 65 66 69 6e 65 20 72 61 6e 64 6f 6d 28 6e 29 |define random(n)|
00000160 20 28 72 61 6e 64 28 29 20 25 20 28 6e 29 29 0a | (rand() % (n)).|
00000170 0a 73 74 72 75 63 74 20 6f 62 6a 65 63 74 5f 74 |.struct object_t|
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000001a0 65 3b 0a 76 6f 69 64 20 20 20 09 09 09 09 20 2a |e;.void .... *|
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000001c0 6c 6c 6f 77 5f 73 70 72 69 74 65 3b 0a 0a 2f 2a |llow_sprite;../*|
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00000230 65 79 20 63 6f 6e 74 61 69 6e 20 73 65 70 61 72 |ey contain separ|
00000240 61 74 65 20 6c 69 74 74 6c 65 20 69 66 28 29 20 |ate little if() |
00000250 63 6c 61 75 73 65 73 20 74 6f 20 64 65 61 6c 0a |clauses to deal.|
00000260 2a 2a 20 77 69 74 68 20 65 61 63 68 20 63 6f 6e |** with each con|
00000270 64 69 74 69 6f 6e 20 74 68 65 79 20 63 6f 75 6c |dition they coul|
00000280 64 20 62 65 20 63 61 6c 6c 65 64 20 75 6e 64 65 |d be called unde|
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000002a0 6f 66 20 74 68 65 73 65 0a 2a 2a 20 63 6f 6e 64 |of these.** cond|
000002b0 69 74 69 6f 6e 73 20 63 6f 75 6c 64 20 62 65 20 |itions could be |
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000002d0 63 61 6e 20 62 65 20 63 61 6c 6c 65 64 20 66 6f |can be called fo|
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000002f0 2a 2a 20 72 65 61 73 6f 6e 20 61 74 20 61 20 74 |** reason at a t|
00000300 69 6d 65 2e 0a 2a 2f 0a 0a 76 6f 69 64 20 62 61 |ime..*/..void ba|
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00000350 69 64 20 2a 72 65 66 29 0a 7b 0a 20 20 69 66 20 |id *ref).{. if |
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00000380 2e 20 69 66 20 62 61 6c 6c 20 69 73 20 6f 66 66 |. if ball is off|
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00000410 7c 7c 20 6f 62 6a 2d 3e 79 20 3e 20 32 35 35 3c ||| obj->y > 255<|
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00000460 2a 2a 20 54 68 69 73 20 6e 65 78 74 20 6c 69 6e |** This next lin|
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00000520 68 61 74 20 68 61 70 70 65 6e 73 2e 2e 2e 0a 2a |hat happens....*|
00000530 2f 0a 20 20 20 20 20 20 6f 62 6a 2d 3e 79 20 3d |/. obj->y =|
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00000550 76 3b 0a 20 20 20 20 7d 0a 20 20 7d 0a 0a 2f 2a |v;. }. }../*|
00000560 20 44 65 6c 65 74 65 20 62 6f 74 68 20 62 61 6c | Delete both bal|
00000570 6c 73 20 69 66 20 74 68 65 79 20 63 6f 6c 6c 69 |ls if they colli|
00000580 64 65 3b 20 69 66 20 74 68 65 20 68 61 6e 64 6c |de; if the handl|
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000005c0 6c 20 62 65 20 61 20 70 6f 69 6e 74 65 72 20 74 |l be a pointer t|
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00000600 0a 20 20 7b 0a 20 20 20 20 50 6f 70 63 6f 72 6e |. {. Popcorn|
00000610 5f 44 65 6c 65 74 65 4f 62 6a 65 63 74 28 6f 62 |_DeleteObject(ob|
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000007e0 20 62 61 6c 6c 20 3d 20 50 6f 70 63 6f 72 6e 5f | ball = Popcorn_|
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00000820 65 74 75 72 6e 3b 20 2f 2a 20 54 68 69 73 20 68 |eturn; /* This h|
00000830 61 70 70 65 6e 73 20 77 68 65 6e 20 74 68 65 20 |appens when the |
00000840 74 61 62 6c 65 20 69 73 20 66 75 6c 6c 20 2a 2f |table is full */|
00000850 0a 0a 2f 2a 20 41 20 6b 6c 75 64 67 65 2c 20 64 |../* A kludge, d|
00000860 75 65 20 74 6f 20 74 68 65 20 66 61 63 74 20 74 |ue to the fact t|
00000870 68 61 74 20 74 68 65 72 65 27 73 20 6e 6f 20 77 |hat there's no w|
00000880 61 79 20 79 6f 75 20 63 61 6e 20 74 65 6c 6c 20 |ay you can tell |
00000890 66 72 6f 6d 20 61 6e 0a 2a 2a 20 6f 62 6a 65 63 |from an.** objec|
000008a0 74 20 77 68 69 63 68 20 74 61 62 6c 65 20 69 74 |t which table it|
000008b0 27 73 20 69 6e 2e 20 20 41 20 66 6c 61 77 20 69 |'s in. A flaw i|
000008c0 6e 20 74 68 65 20 50 6f 70 63 6f 72 6e 20 64 65 |n the Popcorn de|
000008d0 73 69 67 6e 3b 20 73 6f 6d 65 74 68 69 6e 67 0a |sign; something.|
000008e0 2a 2a 20 74 6f 20 66 69 78 20 66 6f 72 20 6e 65 |** to fix for ne|
000008f0 78 74 20 74 69 6d 65 2e 2e 2e 0a 2a 2a 0a 2a 2a |xt time....**.**|
00000900 20 53 65 65 69 6e 67 20 61 73 20 74 68 65 20 67 | Seeing as the g|
00000910 65 6e 65 72 61 74 6f 72 73 27 20 73 6f 6c 65 20 |enerators' sole |
00000920 70 75 72 70 6f 73 65 20 69 73 20 74 6f 20 73 70 |purpose is to sp|
00000930 65 77 20 62 61 6c 6c 73 20 6f 75 74 2c 20 77 65 |ew balls out, we|
00000940 20 63 61 6e 0a 2a 2a 20 75 73 65 20 74 68 65 69 | can.** use thei|
00000950 72 20 70 6f 73 69 74 69 6f 6e 20 61 6e 64 20 76 |r position and v|
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00000970 61 74 65 73 20 66 6f 72 20 6e 65 77 20 62 61 6c |ates for new bal|
00000980 6c 73 2e 20 20 53 6f 20 65 61 63 68 0a 2a 2a 20 |ls. So each.** |
00000990 62 61 6c 6c 20 74 61 6b 65 73 20 6f 6e 20 74 68 |ball takes on th|
000009a0 65 20 78 2c 79 20 61 6e 64 20 78 76 2c 79 76 20 |e x,y and xv,yv |
000009b0 61 74 74 72 69 62 75 74 65 73 20 6f 66 20 74 68 |attributes of th|
000009c0 65 20 67 65 6e 65 72 61 74 6f 72 20 69 74 20 63 |e generator it c|
000009d0 6f 6d 65 73 0a 2a 2a 20 66 72 6f 6d 20 28 74 68 |omes.** from (th|
000009e0 65 20 76 65 6c 6f 63 69 74 79 20 68 61 73 20 61 |e velocity has a|
000009f0 20 73 6d 61 6c 6c 20 72 61 6e 64 6f 6d 20 65 6c | small random el|
00000a00 65 6d 65 6e 74 20 61 64 64 65 64 29 2e 0a 2a 2f |ement added)..*/|
00000a10 0a 0a 20 20 69 66 20 28 6f 62 6a 2d 3e 75 73 65 |.. if (obj->use|
00000a20 72 5f 64 61 74 61 20 3d 3d 20 62 6c 75 65 5f 74 |r_data == blue_t|
00000a30 61 62 6c 65 29 0a 20 20 20 20 62 61 6c 6c 2d 3e |able). ball->|
00000a40 70 6c 6f 74 5f 69 64 2e 73 70 72 69 74 65 5f 61 |plot_id.sprite_a|
00000a50 6e 63 68 6f 72 20 3d 20 26 62 6c 75 65 5f 73 70 |nchor = &blue_sp|
00000a60 72 69 74 65 3b 0a 20 20 65 6c 73 65 0a 20 20 20 |rite;. else. |
00000a70 20 62 61 6c 6c 2d 3e 70 6c 6f 74 5f 69 64 2e 73 | ball->plot_id.s|
00000a80 70 72 69 74 65 5f 61 6e 63 68 6f 72 20 3d 20 26 |prite_anchor = &|
00000a90 79 65 6c 6c 6f 77 5f 73 70 72 69 74 65 3b 0a 0a |yellow_sprite;..|
00000aa0 20 20 62 61 6c 6c 2d 3e 6f 62 6a 65 63 74 5f 69 | ball->object_i|
00000ab0 64 20 3d 20 31 3b 0a 20 20 62 61 6c 6c 2d 3e 78 |d = 1;. ball->x|
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00000ad0 6c 2d 3e 79 20 20 3d 20 6f 62 6a 2d 3e 79 3b 0a |l->y = obj->y;.|
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00000b40 66 6c 61 67 73 2e 77 6f 72 64 20 3d 20 30 3b 0a |flags.word = 0;.|
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00000b60 74 73 2e 73 74 64 5f 70 6c 6f 74 20 3d 20 62 61 |ts.std_plot = ba|
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00000bb0 3e 66 6c 61 67 73 2e 62 69 74 73 2e 67 72 61 76 |>flags.bits.grav|
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00000c30 61 6c 6c 2d 3e 73 69 7a 65 2e 79 20 3d 20 38 3b |all->size.y = 8;|
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00000c60 6c 6f 74 5f 6f 66 66 73 65 74 2e 79 20 3d 20 34 |lot_offset.y = 4|
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00000c90 20 20 20 20 20 20 20 20 20 20 20 20 20 20 66 72 | fr|
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00000cb0 74 69 6d 65 2c 20 65 6e 64 5f 74 69 6d 65 3b 0a |time, end_time;.|
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00000cf0 20 6d 6f 64 65 20 31 33 20 77 69 74 68 20 73 70 | mode 13 with sp|
00000d00 61 63 65 20 66 6f 72 20 74 77 6f 20 73 63 72 65 |ace for two scre|
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00000d50 20 47 46 58 5f 4d 6f 64 65 28 31 33 29 3b 0a 20 | GFX_Mode(13);. |
00000d60 20 53 57 49 28 30 2c 20 30 2c 20 53 57 49 5f 4f | SWI(0, 0, SWI_O|
00000d70 53 5f 52 65 6d 6f 76 65 43 75 72 73 6f 72 73 29 |S_RemoveCursors)|
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00000d90 49 5f 4f 53 5f 42 79 74 65 2c 20 32 32 39 2c 20 |I_OS_Byte, 229, |
00000da0 31 29 3b 0a 0a 2f 2a 20 49 6e 69 74 69 61 6c 69 |1);../* Initiali|
00000db0 73 65 20 50 6f 70 63 6f 72 6e 20 73 70 72 69 74 |se Popcorn sprit|
00000dc0 65 20 70 6c 6f 74 74 65 72 2c 20 63 6c 65 61 72 |e plotter, clear|
00000dd0 20 73 63 72 65 65 6e 2c 20 61 6e 64 20 6d 61 6b | screen, and mak|
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00000df0 77 6f 20 74 61 62 6c 65 73 2c 20 6f 6e 65 20 66 |wo tables, one f|
00000e00 6f 72 20 62 6c 75 65 20 62 61 6c 6c 73 2c 20 6f |or blue balls, o|
00000e10 6e 65 20 66 6f 72 20 79 65 6c 6c 6f 77 2e 20 20 |ne for yellow. |
00000e20 54 68 65 6e 20 73 65 74 20 74 68 65 20 67 72 61 |Then set the gra|
00000e30 76 69 74 79 0a 2a 2a 20 6f 6e 20 65 61 63 68 20 |vity.** on each |
00000e40 74 6f 20 61 20 6d 6f 64 65 72 61 74 65 20 76 61 |to a moderate va|
00000e50 6c 75 65 20 28 72 65 6d 65 6d 62 65 72 20 34 30 |lue (remember 40|
00000e60 39 36 20 50 6f 70 63 6f 72 6e 20 75 6e 69 74 73 |96 Popcorn units|
00000e70 20 3d 20 31 20 70 69 78 65 6c 29 0a 2a 2f 0a 0a | = 1 pixel).*/..|
00000e80 20 20 50 6f 70 63 6f 72 6e 5f 52 65 61 64 53 63 | Popcorn_ReadSc|
00000e90 72 65 65 6e 44 65 74 61 69 6c 73 28 29 3b 0a 20 |reenDetails();. |
00000ea0 20 50 6f 70 63 6f 72 6e 5f 43 6c 65 61 72 53 63 | Popcorn_ClearSc|
00000eb0 72 65 65 6e 28 30 29 3b 0a 20 20 53 57 49 28 32 |reen(0);. SWI(2|
00000ec0 2c 20 30 2c 20 53 57 49 5f 4f 53 5f 42 79 74 65 |, 0, SWI_OS_Byte|
00000ed0 2c 20 31 31 32 2c 20 31 29 3b 0a 20 20 53 57 49 |, 112, 1);. SWI|
00000ee0 28 32 2c 20 30 2c 20 53 57 49 5f 4f 53 5f 42 79 |(2, 0, SWI_OS_By|
00000ef0 74 65 2c 20 31 31 33 2c 20 31 29 3b 0a 20 20 62 |te, 113, 1);. b|
00000f00 6c 75 65 5f 74 61 62 6c 65 20 20 20 20 20 20 3d |lue_table =|
00000f10 20 50 6f 70 63 6f 72 6e 5f 4e 65 77 54 61 62 6c | Popcorn_NewTabl|
00000f20 65 28 32 30 30 2c 20 54 52 55 45 29 3b 0a 20 20 |e(200, TRUE);. |
00000f30 79 65 6c 6c 6f 77 5f 74 61 62 6c 65 20 20 20 20 |yellow_table |
00000f40 3d 20 50 6f 70 63 6f 72 6e 5f 4e 65 77 54 61 62 |= Popcorn_NewTab|
00000f50 6c 65 28 32 30 30 2c 20 54 52 55 45 29 3b 0a 20 |le(200, TRUE);. |
00000f60 20 62 6c 75 65 5f 74 61 62 6c 65 2d 3e 67 72 61 | blue_table->gra|
00000f70 76 5f 79 20 3d 20 79 65 6c 6c 6f 77 5f 74 61 62 |v_y = yellow_tab|
00000f80 6c 65 2d 3e 67 72 61 76 5f 79 20 3d 20 32 35 36 |le->grav_y = 256|
00000f90 3b 0a 0a 2f 2a 20 4c 6f 61 64 20 62 6c 75 65 20 |;../* Load blue |
00000fa0 61 6e 64 20 79 65 6c 6c 6f 77 20 62 61 6c 6c 20 |and yellow ball |
00000fb0 73 70 72 69 74 65 20 66 69 6c 65 73 20 2a 2f 0a |sprite files */.|
00000fc0 0a 20 20 62 6c 75 65 5f 73 70 72 69 74 65 20 20 |. blue_sprite |
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00000fe0 5f 53 69 7a 65 28 22 3c 47 75 73 68 24 44 69 72 |_Size("<Gush$Dir|
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00001010 69 74 65 20 20 20 3d 20 6d 61 6c 6c 6f 63 28 46 |ite = malloc(F|
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00001160 20 65 76 65 72 79 20 66 72 61 6d 65 20 74 6f 20 | every frame to |
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00001200 4f 62 6a 65 63 74 20 6f 6e 6c 79 20 66 69 6e 64 |Object only find|
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00001270 41 6c 73 6f 20 74 68 61 74 20 74 68 65 0a 2a 2a |Also that the.**|
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00001330 62 6a 65 63 74 2e 0a 2a 2a 0a 2a 2a 20 20 20 20 |bject..**.** |
00001340 20 20 4c 61 73 74 20 74 68 69 6e 67 20 74 6f 20 | Last thing to |
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00001390 74 20 74 68 65 79 20 61 72 65 20 73 74 6f 72 65 |t they are store|
000013a0 64 20 73 68 69 66 74 65 64 20 6c 65 66 74 20 31 |d shifted left 1|
000013b0 32 20 62 69 74 73 3b 20 73 6f 20 77 65 20 63 61 |2 bits; so we ca|
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000013d0 20 20 20 20 20 20 61 72 6f 75 6e 64 20 62 79 20 | around by |
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000013f0 65 20 67 61 6d 65 20 77 69 6e 64 6f 77 73 20 61 |e game windows a|
00001400 72 65 20 4e 4f 54 2c 20 68 6f 77 65 76 65 72 2e |re NOT, however.|
00001410 0a 2a 2f 0a 0a 20 20 74 65 6d 70 5f 6f 62 6a 20 |.*/.. temp_obj |
00001420 3d 20 50 6f 70 63 6f 72 6e 5f 4e 65 77 4f 62 6a |= Popcorn_NewObj|
00001430 65 63 74 28 62 6c 75 65 5f 74 61 62 6c 65 29 3b |ect(blue_table);|
00001440 0a 20 20 74 65 6d 70 5f 6f 62 6a 2d 3e 6f 62 6a |. temp_obj->obj|
00001450 65 63 74 5f 69 64 20 3d 20 31 3b 0a 20 20 74 65 |ect_id = 1;. te|
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00001470 72 64 20 3d 20 30 3b 0a 20 20 74 65 6d 70 5f 6f |rd = 0;. temp_o|
00001480 62 6a 2d 3e 66 6c 61 67 73 2e 62 69 74 73 2e 61 |bj->flags.bits.a|
00001490 74 74 6e 5f 65 76 65 72 79 20 3d 20 31 3b 0a 20 |ttn_every = 1;. |
000014a0 20 74 65 6d 70 5f 6f 62 6a 2d 3e 78 20 20 3d 20 | temp_obj->x = |
000014b0 74 65 6d 70 5f 6f 62 6a 2d 3e 79 20 20 3d 20 31 |temp_obj->y = 1|
000014c0 30 3c 3c 31 32 3b 0a 20 20 74 65 6d 70 5f 6f 62 |0<<12;. temp_ob|
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000014e0 2d 3e 79 76 20 3d 20 34 30 39 36 3b 0a 20 20 74 |->yv = 4096;. t|
000014f0 65 6d 70 5f 6f 62 6a 2d 3e 68 61 6e 64 6c 65 72 |emp_obj->handler|
00001500 20 3d 20 28 6f 62 6a 65 63 74 5f 68 61 6e 64 6c | = (object_handl|
00001510 65 72 29 20 67 65 6e 65 72 61 74 6f 72 5f 68 61 |er) generator_ha|
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00001600 20 31 30 3c 3c 31 32 3b 0a 20 20 74 65 6d 70 5f | 10<<12;. temp_|
00001610 6f 62 6a 2d 3e 78 76 20 3d 20 2d 34 30 39 36 3b |obj->xv = -4096;|
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00001630 34 30 39 36 3b 0a 20 20 74 65 6d 70 5f 6f 62 6a |4096;. temp_obj|
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00001670 20 20 74 65 6d 70 5f 6f 62 6a 2d 3e 75 73 65 72 | temp_obj->user|
00001680 5f 64 61 74 61 20 3d 20 79 65 6c 6c 6f 77 5f 74 |_data = yellow_t|
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00001750 20 77 68 65 6e 20 74 68 65 79 20 6e 65 65 64 20 | when they need |
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000017b0 20 20 20 53 57 49 28 30 2c 20 31 2c 20 53 57 49 | SWI(0, 1, SWI|
000017c0 5f 4f 53 5f 52 65 61 64 4d 6f 6e 6f 74 6f 6e 69 |_OS_ReadMonotoni|
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000017e0 6d 65 29 3b 0a 20 20 20 20 50 6f 70 63 6f 72 6e |me);. Popcorn|
000017f0 5f 43 6c 65 61 72 53 63 72 65 65 6e 28 30 29 3b |_ClearScreen(0);|
00001800 0a 20 20 20 20 50 6f 70 63 6f 72 6e 5f 50 72 6f |. Popcorn_Pro|
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00001820 20 54 52 55 45 2c 20 66 72 61 6d 65 73 29 3b 0a | TRUE, frames);.|
00001830 20 20 20 20 50 6f 70 63 6f 72 6e 5f 50 72 6f 63 | Popcorn_Proc|
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00001890 61 62 6c 65 29 3b 0a 20 20 20 20 64 6f 0a 20 20 |able);. do. |
000018a0 20 20 7b 0a 20 20 20 20 20 20 53 57 49 28 30 2c | {. SWI(0,|
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000018e0 66 72 61 6d 65 73 20 3d 20 28 65 6e 64 5f 74 69 |frames = (end_ti|
000018f0 6d 65 20 2d 20 73 74 61 72 74 5f 74 69 6d 65 29 |me - start_time)|
00001900 20 3e 3e 20 31 3b 0a 20 20 20 20 7d 20 77 68 69 | >> 1;. } whi|
00001910 6c 65 20 28 66 72 61 6d 65 73 20 3d 3d 20 30 29 |le (frames == 0)|
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00001930 53 57 49 5f 4f 53 5f 42 79 74 65 2c 20 31 39 29 |SWI_OS_Byte, 19)|
00001940 3b 0a 20 20 20 20 50 6f 70 63 6f 72 6e 5f 53 77 |;. Popcorn_Sw|
00001950 61 70 42 61 6e 6b 73 28 29 3b 0a 20 20 7d 20 77 |apBanks();. } w|
00001960 68 69 6c 65 20 28 21 28 4b 62 64 5f 4b 65 79 44 |hile (!(Kbd_KeyD|
00001970 6f 77 6e 28 2d 31 31 33 29 20 26 26 20 4b 62 64 |own(-113) && Kbd|
00001980 5f 4b 65 79 44 6f 77 6e 28 2d 32 29 29 29 3b 0a |_KeyDown(-2)));.|
00001990 0a 20 20 72 65 74 75 72 6e 28 30 29 3b 0a 7d 0a |. return(0);.}.|
000019a0 
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