Category : C Source Code
Archive : TC_3D.ZIP
Filename : TC-18.C
Output of file : TC-18.C contained in archive : TC_3D.ZIP
/* Draws a container design (soft drink can) */
/* ----------------------------------------------------------------------- */
/* INCLUDE FILES */
#include
#include
#include
#include
#include
/* ----------------------------------------------------------------------- */
/* DECLARATIONS */
float x=0.0,y=0.0,z=0.0; /* world coordinates */
float x1=0.0,x2=0.0,x3=0.0; /* polygon vertices */
float y01=0.0,y2=0.0,y3=0.0; /* polygon vertices */
float z1=0.0,z2=0.0,z3=0.0; /* polygon vertices */
float sx1=0.0,sx2=0.0,sx3=0.0,sx4=0.0,sx5=0.0; /* display coordinaes */
float sy1=0.0,sy2=0.0,sy3=0.0,sy4=0.0,sy5=0.0; /* display coordinates */
float sx=0.0,sy=0.0; /* output of 3d perspective formulas */
float xa=0.0,ya=0.0,za=0.0; /* temporary values in 3d formulas */
float d=1200.0; /* angular perspective value */
double r1=5.09448; /* yaw angle in radians */
double r2=5.09448; /* roll angle in radians */
double r3=6.28319; /* pitch angle in radians */
double sr1=0.0,sr2=0.0,sr3=0.0; /* sine rotation factors */
double cr1=0.0,cr2=0.0,cr3=0.0; /* cosine rotation factors */
float mx=0.0,my=-10.0,mz=-350.0; /* viewpoint position */
int maxx=639,minx=0,maxy=199,miny=0; /* scaling viewport */
float screen_x=639,screen_y=199; /* dimensions of screen mode */
int C0=0,C1=1,C2=2,C3=3,C4=4,C5=5,C6=6,C7=7,C8=8, /* color varariables */
C9=9,C10=10,C11=11,C12=12,C13=13,C14=14,C15=15,
mode_flag=0;
float rx=0.0,ry=0.0; /* scaling values used in mapping routine */
int t=0,t1=0,t2=0; /* loop counters */
int p1=0; /* array indexer */
int key_matte_clr=6; /* exclusive key matte color */
int edge_clr=7; /* used to draw edges on models */
int solid_clr=0; /* used to fill surfaces on solid models */
float x_res,y_res; /* used for 2d mappinf from 640*480 template */
float sp=0.0; /* visibility factor in hidden surface routine */
float sp1=0.0,sp2=0.0,sp3=0.0; /* temporary values of sp */
int NORM_HUE=0; /* halftoning color */
int BASE_CLR=0; /* prep cooor for dithering */
int CC4=0; /* underlay color for dithering */
int CC5=0; /* overlay color for dithering */
unsigned short CC6=0xffff; /* pattern for dithering */
float xx1=0,yy1=.0,zz1=1; /* location of light source - elevation 45 degrees, compas 135 degrees {{REDIFINED !!}}*/
float v4=0.0; /* illumination factor 0 to 1 range */
int v5=0; /* illumination factor base 1 range */
int v6=11; /* VGA and EGA illumination range */
int v7=0; /* temporary varaible used for illumination range */
float xu=0.0,yu=0.0,zu=0.0; /* vector from vertex one to vertex two */
float xv=0.0,yv=0.0,zv=0.0; /* vector from vertex 1 to vertex 3 */
float xn=0.0,y0n=0.0,zn=0.0; /* surface perpendicular factor */
float v1=0.0,v2=0.0; /* length of surface perpendicular vector */
float v3=0.0; /* ratio of length to unit vector magnitude */
float xw=0.0,yw=0.0,zw=0.0; /* surface perpendicual unit vector */
int polary[4][2]; /* used in my 3d solid polygon draw routine */
/* define halftone codes */
char fill_0[]={0,0,0,0,0,0,0,0}; /* 0% fill */
char fill_3[]={0,32,0,0,0,2,0,0}; /* 3% fill */
char fill_6[]={32,0,2,0,128,0,8,0}; /* 6% fill */
char fill_12[]={32,2,128,8,32,2,128,8}; /* 12% fill */
char fill_25[]={68,17,68,17,68,17,68,17}; /* 25% fill */
char fill_37[]={170,68,170,17,170,68,170,17}; /* 37% fill */
char fill_50[]={85,170,85,170,85,170,85,170}; /* 50% fill */
char fill_62[]={85,187,85,238,85,187,85,238}; /* 62% fill */
char fill_75[]={187,238,187,238,187,238,187,238}; /* 75% fill */
char fill_87[]={223,253,127,247,223,253,127,247}; /* 87% fill */
char fill_93[]={255,223,255,223,255,223,255,223}; /* 93% fill */
char fill_100[]={255,255,255,255,255,255,255,255}; /* 100% fill */
/* database of z coordinates on surface of container */
float database_1[]={2,2,1,-1,-2.5,-3.8,-4.8,-6,-6.7,-7.5,-8,-8.5,
-8.8,-9.2,-10,-10.2,-10.9,-11,-11.2,-11.5,-11.7,
-11.9,-12,-12,-11.9,-11.7,-11.5,-11.2,-11,-10.9,
-10.2,-10,-9.2,-8.8,-8.5,-8,-7.5,-6.7,-6,-4.8,
-3.8,-2.5,-1,1,2};
float database_2[]={26,26,28,29.2,31,32,33,34,35,35.8,36.5,37,37.2,
37.5,37.8,38,38.2,38.3,38.5,38.6,38.6,38.6,38.5,
38.3,38.2,38,37.8,37.5,37.2,37,36.5,35.8,35,
34,33,32,31,29.2,27.5,25.2,23};
float database_3[]={26,26,25.5,25,24.5,24.2,24,23.8,23.7,23.7,23.7,
23.7,23.7,23.7,23.8,23.9,23.9,24,24.1,24.2,24.5,
24.8,25.1,25.3,25.3,25.5,25.8,26,26,25.8,25.7,
25.6,25.5,25.2,25.1,25,24.5,24.3,23.8,23.7,23};
float database_4[]={8.2,7.9,7.5,7.1,7,6.9,6.8,6.7,6.6,6.6,6.6,
6.7,6.7,6.7,6.8,6.9,7,7.1,7.3,7.5,8,8.2,8.6,
8.9,9,9.1,9.4,9.6,9.9,10,10,10,10,9.9,9.8,9.5,
9.4,9.1,8.9,8.4,8};
float database_5[]={8.2,7,5.5,3.7,2,0,-1,-2,-2.8,-3.8,-4.5,-5.1,
-5.7,-5.9,-6.3,-6.7,-7,-7.2,-7.3,-7.4,-7.5,-7.5,
-7.4,-7.3,-7.1,-7,-6.7,-6.5,-6,-5.5,-4.8,-4,-3.2,
-2.5,-1.5,-.5,.5,2.1,3.5,6,8};
int q=0,q1=0,q2=0; /* cylinder surface and vertex counters */
double r4=6.28319,r5=6.28319; /* spherical coordinate angles */
float B11[36][3]; /* 36 sets of xyz coordinates, near end */
float B12[36][3]; /* 36 sets of xyz view coordinates, far end */
float B21[36][2]; /* 36 sets of sx,sy display coordinates, near end */
float B22[36][2]; /* 36 sets of sx,sy display coordinates, far end */
double sr4=0.0,cr4=0.0,sr5=0.0,cr5=0.0; /* rotation factors */
/* declare global subroutines */
void keyboard(void);void quit_pgm(void);void calc_3d(void);
void rotation(void);void window(void);void graphics_setup(void);
void coords(void);void draw_poly(void);void notice(int x,int y);
void illumination(void);void dither(void);void shade(void);
void values(void);
void visibility_test(void);void cyl_coords(void);
void draw_surface(void);
/* ----------------------------------------------------------------------- */
/* MAIN ROUTINE */
main(){
graphics_setup();
setviewport(0,0,maxx,maxy,1);
key_matte_clr=C6;
edge_clr=C7;solid_clr=C0;
NORM_HUE=C7;
rotation();
if (mode_flag==4) my=0.0; /* if cga */
/* airbrushed backgroung */
sx=170;sy=72 ;coords();sx1=sx;sy1=sy;sx=470;sy=98 ;coords();
sx2=sx;sy2=sy;setfillpattern(fill_6 ,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=98 ;coords();sx1=sx;sy1=sy;sx=470;sy=132;coords();
sx2=sx;sy2=sy;setfillpattern(fill_12,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=132;coords();sx1=sx;sy1=sy;sx=470;sy=168;coords();
sx2=sx;sy2=sy;setfillpattern(fill_25,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=168;coords();sx1=sx;sy1=sy;sx=470;sy=204;coords();
sx2=sx;sy2=sy;setfillpattern(fill_37,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=204;coords();sx1=sx;sy1=sy;sx=470;sy=240;coords();
sx2=sx;sy2=sy;setfillpattern(fill_50,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=240;coords();sx1=sx;sy1=sy;sx=470;sy=276;coords();
sx2=sx;sy2=sy;setfillpattern(fill_62,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=276;coords();sx1=sx;sy1=sy;sx=470;sy=312;coords();
sx2=sx;sy2=sy;setfillpattern(fill_75,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=312;coords();sx1=sx;sy1=sy;sx=470;sy=348;coords();
sx2=sx;sy2=sy;setfillpattern(fill_87,C4);bar(sx1,sy1,sx2,sy2);
sx=170;sy=348;coords();sx1=sx;sy1=sy;sx=470;sy=384;coords();
sx2=sx;sy2=sy;setfillpattern(fill_100,C4);bar(sx1,sy1,sx2,sy2);
/* calculate coordinates for near end of cylinder */
r4=0;r5=0;
for (t=0;t<=35;t++){
x=30;cyl_coords();z=z+50;calc_3d();window();
B11[t][0]=x;B11[t][1]=y;B11[t][2]=z;
B21[t][0]=sx;B21[t][1]=sy;
/* keyboard();*/
r5=r5+.17453;}
/* calculate coordinates for far end of cylinder */
r4=0;r5=0;
for (t=0;t<=35;t++){
x=30;cyl_coords();z=z-50;calc_3d();window();
B12[t][0]=x;B12[t][1]=y;B12[t][2]=z;
B22[t][0]=sx;B22[t][1]=sy;
/* keyboard(); */
r5=r5+.17453;}
/* draw surfaces of 3d cylinder */
for (q1=0;q1<=35;q1++){
q2=q1+1;if (q2>35) q2=0;
draw_surface();
/* keyboard();*/
}
/* draw near end of 3d cylinder */
x1=B11[0][0];y01=B11[0][1];z1=B11[0][2];
x2=B11[25][0];y2=B11[25][1];z2=B11[25][2];
x3=B11[11][0];y3=B11[11][1];z3=B11[11][2];
visibility_test();if (sp>0) goto all_done;
setcolor(key_matte_clr);setfillstyle(SOLID_FILL,key_matte_clr);
setlinestyle(USERBIT_LINE,0xffff,NORM_WIDTH);
for (q1=0;q1<=35;q1++){
q2=q1+1;if (q2>35) q2=0;
sx1=B21[q1][0];sy1=B21[q1][1];sx2=B21[q2][0];sy2=B21[q2][1];
moveto(sx1,sy1);lineto(sx2,sy2);}
x=0.0;y=0.0;z=50.0;calc_3d();window();floodfill(sx,sy,key_matte_clr);
setcolor(edge_clr);
for (q1=0;q1<=35;q1++){
q2=q1+1;if (q2>35) q2=0;
sx1=B21[q1][0];sy1=B21[q1][1];sx2=B21[q2][0];sy2=B21[q2][1];
moveto(sx1,sy1);lineto(sx2,sy2);}
x=0.0;y=0.0;z=50.0;calc_3d();window();
setfillstyle(SOLID_FILL,solid_clr);floodfill(sx,sy,edge_clr);
x=0.0;y=0.0;z=50.0;calc_3d();window();sx5=sx;sy5=sy;
illumination();shade();keyboard();
for (q1=0;q1<=35;q1++){
q2=q1+1;if (q2>35) q2=0;
sx1=B21[q1][0];sy1=B21[q1][1];sx2=B21[q2][0];sy2=B21[q2][1];
setlinestyle(USERBIT_LINE,0xffff,NORM_WIDTH);setcolor(CC4);
moveto(sx1,sy1);lineto(sx2,sy2);
setlinestyle(USERBIT_LINE,CC6,NORM_WIDTH);setcolor(CC5);
moveto(sx1,sy1);lineto(sx2,sy2);}
setlinestyle(USERBIT_LINE,0xffff,NORM_WIDTH);
/* create lower red design */
edge_clr=C4;
if (mode_flag==4) edge_clr=C6;
setcolor(edge_clr);
x=30;r5=2.601631;cyl_coords();z=-40;calc_3d();window();
moveto(sx,sy);putpixel(sx,sy,edge_clr); /* set point */
x=30;r5=2.601631;cyl_coords();z=2.5;calc_3d();window();
lineto(sx,sy); /* vertical line */
x=30;r5=.490874;cyl_coords();z=-40;calc_3d();window();
moveto(sx,sy);putpixel(sx,sy,edge_clr); /* set point */
x=30;r5=.490874;cyl_coords();z=2.5;calc_3d();window();
lineto(sx,sy); /* vertical line */
keyboard();
x=30;r5=.490874;cyl_coords();z=-40;calc_3d();window();
moveto(sx,sy);putpixel(sx,sy,edge_clr);
for (r5=.490874;r5<=2.601631;r5+=.0490873){
keyboard();x=30;cyl_coords();z=-40;calc_3d();window();
lineto(sx,sy);} /* bottom line */
p1=0;
r5=.490874;x=30;cyl_coords();z=database_1[p1];p1++;
calc_3d();window();moveto(sx,sy);putpixel(sx,sy,edge_clr);
for (r5=.490874;r5<=2.601631;r5+=.0490873){
keyboard();x=30;cyl_coords();
z=database_1[p1];p1++;calc_3d();window();lineto(sx,sy);}
x=30;r5=1.570796;cyl_coords();z=-25;calc_3d();window();
setfillstyle(SOLID_FILL,edge_clr);
floodfill(sx,sy,edge_clr); /* area fill */
/*----- create upper semi-circle design -----*/
edge_clr=C4;
if (mode_flag==4) edge_clr=C6;
setcolor(edge_clr);
p1=0;
r5=.638136;x=30;cyl_coords();z=database_2[p1];p1++;
calc_3d();window();moveto(sx,sy);putpixel(sx,sy,edge_clr);
for (r5=.638136;r5<=2.552544;r5+=.0490873){
keyboard();x=30;cyl_coords();
z=database_2[p1];p1++;calc_3d();window();lineto(sx,sy);}
p1=0;
r5=.638136;x=30;cyl_coords();z=database_3[p1];p1++;
calc_3d();window();moveto(sx,sy);putpixel(sx,sy,edge_clr);
for (r5=.638136;r5<=2.552544;r5+=.0490873){
keyboard();x=30;cyl_coords();
z=database_3[p1];p1++;calc_3d();window();lineto(sx,sy);}
x=30;r5=1.570796;cyl_coords();z=32;calc_3d();window();
setfillstyle(SOLID_FILL,edge_clr);floodfill(sx,sy,edge_clr);
/*----- create central semi-circle design -----*/
edge_clr=C1;
if (mode_flag==4) edge_clr=C6;
setcolor(edge_clr);
p1=0;
r5=.638136;x=30;cyl_coords();z=database_4[p1];p1++;
calc_3d();window();moveto(sx,sy);putpixel(sx,sy,edge_clr);
for (r5=.638136;r5<=2.552544;r5+=.0490873){
keyboard();x=30;cyl_coords();
z=database_4[p1];p1++;calc_3d();window();lineto(sx,sy);}
p1=0;
r5=.638136;x=30;cyl_coords();z=database_5[p1];p1++;
calc_3d();window();moveto(sx,sy);putpixel(sx,sy,edge_clr);
for (r5=.638136;r5<=2.552544;r5+=.0490873){
keyboard();x=30;cyl_coords();
z=database_5[p1];p1++;calc_3d();window();lineto(sx,sy);}
x=30;r5=1.570796;cyl_coords();z=0;calc_3d();window();
setfillstyle(SOLID_FILL,edge_clr);floodfill(sx,sy,edge_clr);
all_done:
setcolor(C7);notice (0,0);
for (t1=1;t1!=2;) keyboard();
quit_pgm;
}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: CALCULATE WORLD COORDINATES FOR cylinder */
void cyl_coords(void){
sr4=sin(r4);cr4=cos(r4);sr5=sin(r5);
cr5=cos(r5);x1=sr5*x;y=cr5*x;x=cr4*x1;z=sr4*x1;return;}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: DRAW 4 SIDED POLYGON SURFACE ON SPHERE */
void draw_surface(void){
x1=B11[q1][0];y01=B11[q1][1];z1=B11[q1][2];
x2=B11[q2][0];y2=B11[q2][1];z2=B11[q2][2];
x3=B12[q2][0];y3=B12[q2][1];z3=B12[q2][2];
visibility_test();if (sp>0) return;
sx1=B21[q1][0];sy1=B21[q1][1];
sx2=B21[q2][0];sy2=B21[q2][1];
sx3=B22[q2][0];sy3=B22[q2][1];
sx4=B22[q1][0];sy4=B22[q1][1];
x=x1+.5*(x3-x1);y=y01+.5*(y3-y01);z=z1+.5*(z3-z1);
sx=d*x/z;sy=d*y/z;window();sx5=sx;sy5=sy;
draw_poly();illumination();shade();dither();
return;}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: CALCULATE SIN,COS FACTORS */
void rotation(void){
sr1=sin(r1);sr2=sin(r2);sr3=sin(r3);cr1=cos(r1);cr2=cos(r2);
cr3=cos(r3);return;}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: STANDARD 3D FORMULAS */
/* Pass: x,y,z cartesian world coordinates.
Returns: sx,sy cartesian display coordinates.
x,y,z catesian view coordinates */
void calc_3d(void){
x=(-1)*x;xa=cr1*x-sr1*z;za=sr1*x+cr1*z;x=cr2*xa+sr2*y;
ya=cr2*y-sr2*xa;z=cr3*za-sr3*ya;y=sr3*za+cr3*ya;x=x+mx;y=y+my;
z=z+mz;sx=d*x/z;sy=d*y/z;return;}
/* ----------------------------------------------------------------------- */
/* HIDDEN SURFACE VISIBILTY TEST */
void visibility_test(void){
sp1=x1*(y2*z3-y3*z2);sp1=(-1)*sp1;sp2=x2*(y3*z1-y01*z3);
sp3=x3*(y01*z2-y2*z1);sp=sp1-sp2-sp3;return;}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: DRAW 4-SIDED SOLID POLYGON IN 3D SPACE */
void draw_poly(void){
setlinestyle(USERBIT_LINE,0xffff,NORM_WIDTH);
setfillstyle(SOLID_FILL,solid_clr);
setcolor(edge_clr);
polary[0][0]=sx1;polary[0][1]=sy1;polary[1][0]=sx2;polary[1][1]=sy2;
polary[2][0]=sx3;polary[2][1]=sy3;polary[3][0]=sx4;polary[3][1]=sy4;
fillpoly (4,(int far*) polary);
return;
}
/* ----------------------------------------------------------------------- */
/* SUBROUTINES: CALCULATE ILLUMINATION LEVEL */
void illumination(void){
xu=x2-x1;yu=y2-y01;zu=z2-z1; /* vector from vertex 1 to vertex 2 */
xv=x3-x1;yv=y3-y01;zv=z3-z1; /* vector from vertex 1 to vertex 3 */
xn=(yu*zv)-(zu*yv);y0n=(zu*xv)-(xu*zv);
zn=(xu*yv)-(yu*xv); /* surface perpendicular vector */
y0n=y0n*(-1);zn=zn*(-1); /* convert to cartesian system */
v1=(xn*xn)+(y0n*y0n)+(zn*zn);
v2=sqrt(v1); /* magnitude of surface perpendicular vector */
v3=1/v2; /* ratio of magnitude to length of unit vector */
xw=v3*xn;yw=v3*y0n;zw=v3*zn; /* surface perpendicular to unit vector */
v4=(xw*xx1)+(yw*yy1)+(zw*zz1); /* illumination factor 0 to 1 */
v4=v4*v6; /* expand illumination range from base 0 */
v7=v4; /* convert illumination range to integer */
v5=v7+1; /* illumination range from base 1 */
return;
}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: ILLUMINATION MATRIX */
void shade(void){
switch (v5){
case 1:setfillpattern(fill_6,NORM_HUE);CC6=0x1010;values();return;
case 2:setfillpattern(fill_6,NORM_HUE);CC6=0x1010;values();return;
case 3:setfillpattern(fill_6,NORM_HUE);CC6=0x1010;values();return;
case 4:setfillpattern(fill_12,NORM_HUE);CC6=0x2020;values();return;
case 5:setfillpattern(fill_25,NORM_HUE);CC6=0x2222;values();return;
case 6:setfillpattern(fill_37,NORM_HUE);CC6=0xaaaa;values();return;
case 7:setfillpattern(fill_50,NORM_HUE);CC6=0xaaaa;values();return;
case 8:setfillpattern(fill_62,NORM_HUE);CC6=0xaaaa;values();return;
case 9:setfillpattern(fill_75,NORM_HUE);CC6=0xbbbb;values();return;
case 10:setfillpattern(fill_87,NORM_HUE);CC6=0xdddd;values();return;
case 11:setfillpattern(fill_93,NORM_HUE);CC6=0xefef;values();return;
case 12:setfillpattern(fill_100,NORM_HUE);CC6=0xffff;values();return;
defualt:setfillpattern(fill_6,NORM_HUE);CC6=0x1010;values();}
return;}
/* ----------------------------------------------------------------------- */
/* LOCAL SUBROUTINE: prep fill and set dithering variables */
void values(void){
floodfill(sx5,sy5,edge_clr);CC4=BASE_CLR;CC5=NORM_HUE;return;}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: APPLY DITHERING */
void dither(void){
setlinestyle(USERBIT_LINE,0xffff,NORM_WIDTH);setcolor(CC4);
moveto (sx1,sy1);lineto(sx2,sy2);lineto(sx3,sy3);
lineto(sx4,sy4);lineto(sx1,sy1);
setlinestyle(USERBIT_LINE,CC6,NORM_WIDTH);setcolor(CC5);
moveto(sx1,sy1);lineto(sx2,sy2);lineto(sx3,sy3);
lineto(sx4,sy4);lineto(sx1,sy1);
return;
}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: MAP CARTESIAN COORDS TO PHYSICAL SCREEN COORDS */
void window(void){
sx=sx+399;sy=sy+299;rx=screen_x/799;ry=screen_y/599;sx=sx*rx;
sy=sy*ry;return;}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: CHACK THE KEYBOARD BUFFER */
void keyboard(void){
if (bioskey(1)==0) return; else quit_pgm();}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: GRACEFUL EXIT FROM PROGRAM */
void quit_pgm(void){
cleardevice();restorecrtmode();exit(0);}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: VGA/EGA/MCGA/CGA COMPATIBILITY MODULE */
void graphics_setup(void){
int graphics_adapter,graphics_mode;
detectgraph(&graphics_adapter,&graphics_mode);
if (graphics_adapter==VGA) goto VGA_mode;
if (graphics_mode==EGAHI) goto EGA_ECD_mode;
if (graphics_mode==EGALO) goto EGA_SCD_mode;
if (graphics_adapter==CGA) goto CGA_mode;
if (graphics_adapter==MCGA) goto CGA_mode;
goto abort_message;
VGA_mode:
graphics_adapter=VGA;graphics_mode=VGAHI;
initgraph(&graphics_adapter,&graphics_mode,"");
x_res=640;y_res=480;mode_flag=1;
maxx=639;minx=0;maxy=479;miny=0;screen_x=639;screen_y=479;
setcolor(7);moveto(0,472);
outtext("Revisions by A. Helder");
moveto(472,472);
outtext("Press any key to quit");
moveto(160,0);
outtext("USING C TO GENERATE PACKAGING DESIGN");
return;
EGA_ECD_mode:
graphics_adapter=EGA;graphics_mode=EGAHI;
initgraph(&graphics_adapter,&graphics_mode,"");
x_res=640;y_res=350;mode_flag=2;
maxx=639;minx=0;maxy=349;miny=0;screen_x=639;screen_y=349;
setcolor(7);moveto(0,342);
outtext("Revisions by A. Helder");
moveto(472,342);
outtext ("Press any key to quit");
moveto(160,0);
outtext("USING C TO GENERATE PACKAGING DESIGN");
return;
EGA_SCD_mode:
graphics_adapter=EGA;graphics_mode=EGALO;
initgraph(&graphics_adapter,&graphics_mode,"");
x_res=640;y_res=200;mode_flag=3;
maxx=639;minx=0;maxy=199;miny=0;screen_x=639;screen_y=199;
setcolor(7);moveto(0,192);
outtext("Revisions by A. Helder");
moveto(472,192);
outtext("PRESS ANY KEY TO QUIT");
moveto(160,0);
outtext("USING C TO GENERATE PACKAGING DESIGN");
return;
CGA_mode:
graphics_adapter=CGA;graphics_mode=CGAC3;
initgraph(&graphics_adapter,&graphics_mode,"");
x_res=320;y_res=200;mode_flag=1;C7=3;
maxx=319;minx=0;maxy=199;miny=0;screen_x=319;screen_y=199;
setcolor(3);moveto(48,192);
outtext("Revisions by A. Helder");
moveto(88,0);
outtext ("PACKAGING DESIGN");
return;
abort_message:
printf("\n\nUnable to proceed - Requires VGA,EGA,CGA or MCGA adapter");
printf("\nWith appropriate monitor");
exit(0);
}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: MAP 640*480 TEMPLATE TO 2D SCREEN */
void coords(void)
{
sx=sx*(x_res/640);sy=sy*(y_res/480);return;
}
/* ----------------------------------------------------------------------- */
/* SUBROUTINE: COPYRIGHT NOTICE */
int copyright[][3]={0x7c00,0x0000,0x0000,0x8231,
0x819c,0x645e,0xba4a,0x4252,0x96d0,0xa231,0x8252,0x955e,0xba4a,
0x43d2,0xf442,0x8231,0x825c,0x945e,0x7c00,0x0000,0x0000};
void notice(int x, int y){
int a,b,c; int t1=0;
for (t1=0;t1<=6;t1++)
{
a=copyright[t1][0];b=copyright[t1][1];
c=copyright[t1][2];
setlinestyle(USERBIT_LINE,a,NORM_WIDTH);
moveto(x,y);lineto(x+15,y);
setlinestyle(USERBIT_LINE,b,NORM_WIDTH);
moveto(x+16,y);lineto(x+31,y);
setlinestyle(USERBIT_LINE,c,NORM_WIDTH);
moveto(x+32,y);lineto(x+47,y);y++;
};
setlinestyle(USERBIT_LINE,0xFFFF,NORM_WIDTH);
return;}
/* end of source code */
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/