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- #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);
- }
-