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A.C.E. 2
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ACE CD 2.iso
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UTILS
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GAMESDS3.DMS
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GAMESDS3.adf
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GDS_Examples.lha
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Examples
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bubble
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bubble_line.c
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C/C++ Source or Header
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1994-11-14
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19KB
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566 lines
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <exec/memory.h>
#include <exec/types.h>
#include <graphics/gfx.h>
#include <graphics/gfxbase.h>
#include <proto/exec.h>
#include <proto/graphics.h>
#include "GameSmith:GameSmith.h"
#include "GameSmith:include/libraries/libptrs.h"
#include "bubble.h"
/*-------------------------------------------------------------------------*/
#define VIDEO_STEPS 30
#define COLOR_GRADIENT 0x100 /* color change amount */
#define VIDEO_REG 0x180 /* address of bg color reg */
#define BGCOLOR 0xf00 /* max color value (bright red) */
#define BGCOLOR_LONG 0x00ff0000 /* 8 bit color entry (bright red) */
#define MIN_COLOR 0x000
/*-------------------------------------------------------------------------*/
/* Function Prototypes */
void parser(int,char **);
int setup(void);
void build_copper(void);
void move_image(void);
void check_bounds(void);
__stdargs void collision(struct anim_struct *,struct anim_struct *,
struct collision_struct *,struct collision_struct *);
int check_close(void);
void cleanup(void);
void free_arrays(void);
/*-------------------------------------------------------------------------*/
/* some global variables */
int bubble_cnt,swidth,sheight,smode,delay=0,random_x=11,random_y=9;
int *x=NULL,*y=NULL,*speedx=NULL,*speedy=NULL,*reset=NULL,*last=NULL;
int dlist; /* display list handle for anims */
int display_page=0;
struct anim_struct *bubble;
int copheight;
/*-------------------------------------------------------------------------*/
unsigned short copper_list[256]; /* enough for our custom copper list */
struct gs_viewport vp =
{
NULL, /* ptr to next viewport */
NULL, /* ptr to color table */
0, /* number of colors in table */
copper_list, /* ptr to user copper list for both pages */
0,0,0,0,0, /* height, width, depth, bmheight, bmwidth */
0,0, /* top & left viewport offsets */
0,0, /* X & Y bitmap offsets */
GSVP_ALLOCBM, /* flags (alloc bitmaps) */
NULL,NULL, /* 2.xx & above compatibility stuff */
NULL,NULL, /* bitmap pointers */
NULL, /* future expansion */
0,0,0,0 /* display clip (use nominal) */
};
struct display_struct bubble_display =
{
NULL, /* ptr to previous display view */
NULL,NULL, /* 2.xx & above compatibility stuff */
0,0, /* X and Y display offsets */
0, /* display mode ID */
4,4, /* sprite priorities (sprites in front of playfields) */
GSV_DOUBLE, /* flags */
&vp, /* ptr to 1st viewport */
NULL /* future expansion */
};
/***************************************************************************/
main(argc,argv)
int argc;
char *argv[];
{
int err,end=0;
if (argc < 2)
{
printf("\nUSAGE: bubbles [number of bubbles] [HIRES] [SUPER] [VB delay intervals] [X speed] [Y speed]\n");
exit(01);
}
if (gs_open_libs(DOS|GRAPHICS,0)) /* open AmigaDOS libs */
exit(01); /* if can't open libs, abort */
parser(argc,argv); /* parse command line args */
if (err=setup()) /* if couldn't get set up... abort program */
{
printf("\nSetup error: %d\n",err);
gs_close_libs(); /* close all libraries */
exit(02);
}
Forbid(); /* take over the entire machine */
while (!end) /* this shows off speed */
{
move_image(); /* move them bubbles around */
end=check_close(); /* end when user hits left mouse button */
}
Permit(); /* OK, let other things run while we clean up */
cleanup(); /* close & deallocate everything */
gs_close_libs(); /* close all libraries */
}
/***************************************************************************/
void parser(argc,argv)
int argc;
char *argv[];
{
bubble_cnt=atoi(argv[1]); /* # anims to place on the screen */
swidth=320; /* default width & height */
sheight=200;
copheight=200;
smode=0; /* default mode of lores no lace */
#ifdef NTSC_MONITOR_ID
if (GfxBase->LibNode.lib_Version >= 36) /* if WB 2.0 or higher */
{ /* this defeats mode promotion on AGA machines */
if (ModeNotAvailable(NTSC_MONITOR_ID))
{
smode = PAL_MONITOR_ID;
sheight=256;
copheight=256;
}
else
{
smode = NTSC_MONITOR_ID;
}
}
#endif
if (argc >= 3)
{
if (!(stricmp(argv[2],"DBL"))) /* check for double scan */
{
#ifdef DBLNTSC_MONITOR_ID
if (GfxBase->LibNode.lib_Version >= 39) /* if WB 3.0 or higher */
{ /* try for mode promoted AGA display */
if (!ModeNotAvailable(DBLNTSC_MONITOR_ID))
{
smode = DBLNTSC_MONITOR_ID;
copheight=400;
}
else if (!ModeNotAvailable(DBLPAL_MONITOR_ID))
{
smode = DBLPAL_MONITOR_ID;
sheight=256;
copheight=512;
}
}
#endif
}
else if (!(stricmp(argv[2],"DBLHIRES"))) /* check for hires double scan */
{
#ifdef DBLNTSC_MONITOR_ID
if (GfxBase->LibNode.lib_Version >= 39) /* if WB 3.0 or higher */
{ /* try for mode promoted AGA display */
if (!ModeNotAvailable(DBLNTSC_MONITOR_ID))
{
swidth=640;
smode = DBLNTSC_MONITOR_ID;
copheight=400;
sheight=400;
}
else if (!ModeNotAvailable(DBLPAL_MONITOR_ID))
{
swidth=640;
smode = DBLPAL_MONITOR_ID;
sheight=256;
copheight=512;
}
smode|=HIRES|LACE;
}
#endif
}
else if (!(stricmp(argv[2],"HIRES"))) /* check for hires spec */
{
swidth=640;
sheight=400;
smode|=HIRES|LACE;
}
else if (!(stricmp(argv[2],"SUPER"))) /* check for superhires72 */
{
#ifdef SUPER72_MONITOR_ID
if (GfxBase->LibNode.lib_Version >= 36)
{
if (!ModeNotAvailable(SUPER72_MONITOR_ID | SUPERLACE_KEY))
{
smode=SUPER72_MONITOR_ID | SUPERLACE_KEY;
swidth=800;
sheight=600;
copheight=300;
}
}
#endif
}
}
if (argc >= 4)
{
delay=atoi(argv[3]); /* delay value in vertical blank intervals */
}
if (argc >= 5) /* new random X speed range */
{
random_x=atoi(argv[4]);
if (random_x < 2)
random_x=2;
}
if (argc >= 6) /* new random Y speed range */
{
random_y=atoi(argv[5]);
if (random_y < 2)
random_y=2;
}
}
/***************************************************************************/
int setup()
{
int cnt,depth=0;
struct blit_struct *img;
struct anim_load_struct load;
if (!(x=(int *)malloc(bubble_cnt*sizeof(int))))
return(-1);
if (!(y=(int *)malloc(bubble_cnt*sizeof(int))))
{
free_arrays();
return(-1);
}
if (!(speedx=(int *)malloc(bubble_cnt*sizeof(int))))
{
free_arrays();
return(-1);
}
if (!(speedy=(int *)malloc(bubble_cnt*sizeof(int))))
{
free_arrays();
return(-1);
}
if (!(last=(int *)malloc(bubble_cnt*sizeof(int))))
{
free_arrays();
return(-1);
}
if (!(reset=(int *)malloc(bubble_cnt*sizeof(int))))
{
free_arrays();
return(-1);
}
load.filename="bubble2"; /* name of anim file */
load.cmap_size=8; /* number of bits per color value */
load.array_elements=bubble_cnt; /* number of array elements desired */
load.flags=0L; /* no special load flags */
if (gs_load_anim(&load)) /* load the anim object */
{
free_arrays();
return(-1);
}
bubble=load.anim_ptr.anim; /* ptr to bubble anim */
if (load.type) /* make sure it's an anim type */
{
FreeMem(load.cmap,load.cmap_entries*sizeof(long));
free_arrays();
if (load.type = 1)
gs_free_cplx((struct anim_cplx *)bubble,bubble_cnt);
return(-2);
}
img = bubble[0].list; /* ptr to 1st image in anim sequence */
while (img) /* find max depth of anim */
{
if (img->depth > depth)
depth = img->depth;
if (img->next == img) /* avoid infinite loop */
img=NULL; /* if single shot anim */
else
img=img->next;
}
vp.height = sheight; /* set up display dimensions */
vp.width = swidth;
vp.depth = depth;
vp.bmheight = sheight;
vp.bmwidth = swidth;
bubble_display.modes = smode;
vp.num_colors=load.cmap_entries;
vp.color_table=load.cmap; /* addr of color table */
build_copper(); /* build custom copper list */
load.cmap[0]=BGCOLOR_LONG; /* use our new background color */
if (gs_create_display(&bubble_display))
{
FreeMem(load.cmap,load.cmap_entries*sizeof(long));
free_arrays();
gs_free_anim(bubble,bubble_cnt);
return(-2);
}
FreeMem(load.cmap,load.cmap_entries*sizeof(long)); /* done with color table */
if ((dlist=gs_get_display_list()) < 0) /* allocate a display list for anims */
{
free_arrays();
gs_free_anim(bubble,bubble_cnt);
return(-3);
}
gs_init_anim(dlist,vp.bitmap1,vp.bitmap2,NULL); /* tell anim system about bitmaps */
gs_set_anim_bounds(dlist,0,0,swidth-1,sheight-1); /* set bounds for anim objects */
gs_set_collision(dlist,&collision); /* set ptr to collision handler */
for (cnt=0; cnt < bubble_cnt; cnt++)
{ /* add all bubbles to a display list */
reset[cnt]=0;
last[cnt]=-1;
x[cnt] = gs_random(swidth); /* random X,Y coords */
y[cnt] = gs_random(sheight);
while ((speedx[cnt] = gs_random(random_x)) == 0);
while ((speedy[cnt] = gs_random(random_y)) == 0);
if (cnt&1)
{
speedx[cnt]*=-1;
speedy[cnt]*=-1;
}
if (gs_add_anim(dlist,(struct anim_struct *)&bubble[cnt],x[cnt],y[cnt]))
{
cleanup(); /* release everything */
return(-4); /* return failure */
}
gs_set_anim_cell((struct anim_struct *)&bubble[cnt],gs_random(bubble[cnt].count));
}
gs_draw_anims(dlist);
check_bounds();
gs_next_anim_page(dlist);
gs_show_display(&bubble_display,1);
gs_flip_display(&bubble_display,1);
display_page^=1; /* keep track of current display page */
gs_open_vb_timer();
return(0);
}
/***************************************************************************/
void build_copper()
/* build a custom copper list of background color changes */
{
int cnt,cnt2=0,video_gradient;
short bgcolor,gradient,ctable[15];
bgcolor=BGCOLOR;
gradient=0;
video_gradient=(copheight/3)/15;
for (cnt=0; cnt < 15; cnt++) /* build copper list */
{
if (cnt)
{
copper_list[cnt2++]=UC_WAIT; /* copper wait instruction */
copper_list[cnt2++]=gradient; /* y coord to wait on */
copper_list[cnt2++]=0; /* x coord to wait on */
}
ctable[cnt]=bgcolor;
copper_list[cnt2++]=UC_SETCOLOR; /* set color register */
copper_list[cnt2++]=0; /* register number */
copper_list[cnt2++]=ctable[cnt]; /* value for register */
gradient+=video_gradient;
bgcolor-=COLOR_GRADIENT;
if (bgcolor < MIN_COLOR)
bgcolor=0;
}
copper_list[cnt2++]=UC_WAIT; /* copper wait instruction */
copper_list[cnt2++]=gradient; /* y coord to wait on */
copper_list[cnt2++]=0; /* x coord to wait on */
copper_list[cnt2++]=UC_SETCOLOR;
copper_list[cnt2++]=0; /* color number */
copper_list[cnt2++]=0; /* color value */
gradient=((copheight/3)*2)-video_gradient; /* build bottom color gradient */
for (cnt=14; cnt >= 0; cnt--) /* build copper list */
{
copper_list[cnt2++]=UC_WAIT; /* copper wait instruction */
copper_list[cnt2++]=gradient; /* y coord to wait on */
copper_list[cnt2++]=0; /* x coord to wait on */
copper_list[cnt2++]=UC_SETCOLOR; /* set color register */
copper_list[cnt2++]=0; /* register number */
copper_list[cnt2++]=ctable[cnt]; /* value for register */
gradient+=video_gradient;
}
copper_list[cnt2++]=UC_END; /* end coppper list */
}
/***************************************************************************/
void move_image()
/* move and animate the graphic objects on the screen */
{
static int x1,y1,lastx,lasty,new_line=1,first=1;
int cnt;
if (gs_vb_time() < delay)
return;
gs_vb_timer_reset();
for (cnt=0; cnt < bubble_cnt; cnt++)
{
x[cnt]+=speedx[cnt]; /* move the object */
y[cnt]+=speedy[cnt];
gs_anim_obj((struct anim_struct *)&bubble[cnt],x[cnt],y[cnt]);
if (reset[cnt]) /* since anim doesn't loop, must reset */
{ /* the sequence in the event of collision */
reset[cnt]=0; /* start at 1st cell in anim sequence */
gs_set_anim_cell((struct anim_struct *)&bubble[cnt],0);
}
if (!bubble[cnt].collide) /* if not colliding, clear last ptr */
last[cnt]=-1;
}
if (new_line)
{
new_line=0;
x1=gs_random(swidth);
y1=gs_random(sheight);
gs_init_vector(0,x1,y1,gs_random(swidth),gs_random(sheight));
if (first)
{
first=0;
lastx=x1;
lasty=y1;
}
}
while (bubble_display.flags & GSV_FLIP); /* while page not flipped yet */
gs_restore_anim_bg(dlist); /* restore the background gfx */
if (display_page) /* plot the line behind the bubbles */
{
gs_plot(vp.bitmap1,lastx,lasty,1);
gs_plot(vp.bitmap1,x1,y1,1);
}
else
{
gs_plot(vp.bitmap2,lastx,lasty,1);
gs_plot(vp.bitmap2,x1,y1,1);
}
lastx=x1;
lasty=y1;
gs_step_vector(0,1,&x1,&y1); /* next point on line */
if ((x1 == 0) && (y1 == 0)) /* check for end of the line */
new_line=1;
gs_draw_anim_objs(dlist); /* draw the anim objects over the screen */
check_bounds(); /* bounce off of outer bitmap bounds */
gs_next_anim_page(dlist); /* tell anim sys to use other bitmap */
gs_flip_display(&bubble_display,1); /* switch to other display, sync */
display_page^=1; /* keep track of current display page */
}
/***************************************************************************/
void check_bounds()
{
int cnt;
for (cnt=0; cnt < bubble_cnt; cnt++)
{
if (bubble[cnt].flags & (ANIM_BOUNDS_X1|ANIM_BOUNDS_X2))
{
x[cnt]=bubble[cnt].x; /* keep track of current location */
speedx[cnt]=-speedx[cnt]; /* reverse X direction */
reset[cnt]=1; /* make bubble warp */
last[cnt]=-1; /* no colliding */
}
if (bubble[cnt].flags & (ANIM_BOUNDS_Y1|ANIM_BOUNDS_Y2))
{
y[cnt]=bubble[cnt].y;
speedy[cnt]=-speedy[cnt]; /* reverse Y direction */
reset[cnt]=1;
last[cnt]=-1;
}
}
}
/***************************************************************************/
int check_close()
/* check for user input */
{
if (gs_joystick(0) & (JOY_BUTTON1|JOY_BUTTON2))
return(1);
return(0);
}
/***************************************************************************/
__stdargs void collision(anim1,anim2,coll1,coll2)
struct anim_struct *anim1;
struct anim_struct *anim2;
struct collision_struct *coll1;
struct collision_struct *coll2;
/*
This is the collision handler which makes the bubbles "bounce" off of
each other.
*/
{
int temp;
if (last[anim1->array_num] != anim2->array_num) /* if not same object */
{
last[anim1->array_num] = anim2->array_num; /* remember last collision */
last[anim2->array_num] = anim1->array_num;
reset[anim1->array_num]=1; /* reset anim cell */
reset[anim2->array_num]=1;
temp=speedy[anim2->array_num]; /* swap values */
speedy[anim2->array_num]=speedy[anim1->array_num];
speedy[anim1->array_num]=temp;
temp=speedx[anim2->array_num];
speedx[anim2->array_num]=speedx[anim1->array_num];
speedx[anim1->array_num]=temp;
}
}
/***************************************************************************/
void cleanup()
/* release all resources and memory */
{
free_arrays();
gs_free_anim(bubble,bubble_cnt);
gs_remove_display(&bubble_display);
gs_free_display_list(dlist);
gs_close_vb_timer();
}
/***************************************************************************/
void free_arrays()
/* release memory used by control arrays */
{
if (x)
free(x);
if (y)
free(y);
if (speedx)
free(speedx);
if (speedy)
free(speedy);
if (last)
free(last);
if (reset)
free(reset);
}