mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-27 02:31:00 +00:00
164 lines
2.8 KiB
C
164 lines
2.8 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include <math.h>
|
|
|
|
#include "gr-sim.h"
|
|
#include "tfv_utils.h"
|
|
#include "tfv_zp.h"
|
|
|
|
#include "demo_title.c"
|
|
|
|
#define PI 3.14159265358979323946264
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
int xx,yy,ch,color,i;
|
|
double dx,dy,u,v,_u,_v,au,av;
|
|
double theta=0;
|
|
int frame=0;
|
|
double scale=1.0;
|
|
|
|
grsim_init();
|
|
gr();
|
|
|
|
// clear_screens();
|
|
|
|
ram[DRAW_PAGE]=PAGE0;
|
|
clear_bottom();
|
|
ram[DRAW_PAGE]=PAGE1;
|
|
clear_bottom();
|
|
ram[DRAW_PAGE]=PAGE2;
|
|
clear_bottom();
|
|
|
|
|
|
// clear_bottom(PAGE0);
|
|
// clear_bottom(PAGE1);
|
|
// clear_bottom(PAGE2);
|
|
|
|
// grsim_unrle(demo_rle,0x400);
|
|
grsim_unrle(demo_rle,0xc00);
|
|
|
|
// gr_copy_to_current(0xc00);
|
|
// page_flip();
|
|
// gr_copy_to_current(0xc00);
|
|
// page_flip();
|
|
|
|
ram[DRAW_PAGE]=PAGE0;
|
|
|
|
while(1) {
|
|
grsim_update();
|
|
|
|
blah:
|
|
ch=grsim_input();
|
|
if (ch=='q') break;
|
|
if (ch==0) goto blah;
|
|
|
|
// ; -----------------
|
|
// ; ROTOZOOM Théorie:
|
|
// ; theta: angle de rotation
|
|
// ; scale : coeff pour le zoom
|
|
// ; xx et yy : coordonnées point écran
|
|
// ; u et v : coordonnées du point texture
|
|
// ; déplacement :
|
|
// ; dx = cos(theta)*scale
|
|
// ; dx = sin(theta)*scale
|
|
// ; u = u + xx
|
|
// ; v = v + yy
|
|
// ; texture(u,v)->screen(x,y)
|
|
// ;
|
|
//; code:
|
|
///;
|
|
//; ; déplacement
|
|
//; dx = cos(theta)*scale;
|
|
//; dy = sin(theta)*scale;
|
|
//;
|
|
//; for(yy=0;yy<24;yy++) { // pour les 24 lignes
|
|
//; _u = u; ; on sauve les coordonnées du premier pixel à afficher de la ligne
|
|
//; _v = v; ;
|
|
//; for(xx=0;xx<40;xx++) { // affichage d'une ligne horizontale (40 points)
|
|
//; u = u + dx ; déplacement
|
|
//; v = v + dy ; x et y
|
|
//; text(u,v) - > screen(xx,yy)
|
|
//; }
|
|
//; u = _u - dy; // on se place sur le premier pixel de la prochaine ligne a afficher
|
|
//; v = _v + dx;
|
|
//; }
|
|
//; theta++
|
|
|
|
|
|
dx = cos(theta)*scale;
|
|
dy = sin(theta)*scale;
|
|
|
|
u=0;
|
|
v=0;
|
|
|
|
for(i=0;i<20;i++) {
|
|
u=u-dx;
|
|
v=v-dy;
|
|
}
|
|
v=40-v;
|
|
|
|
|
|
for(yy=-20;yy<20;yy++) {
|
|
/* save starting point */
|
|
_u=u;
|
|
_v=v;
|
|
for(xx=-20;xx<20;xx++) {
|
|
|
|
/* rotate in center of screen */
|
|
au=u+20;
|
|
av=v;//+20;
|
|
|
|
// if ((au<0) || (au>39)) color=0;
|
|
// else if ((av<0) || (av>39)) color=0;
|
|
// else {
|
|
color=scrn_page(au,av,PAGE2);
|
|
// }
|
|
|
|
if (
|
|
((xx==-20) && (yy==-20)) ||
|
|
((xx==0) && (yy==0)) ||
|
|
((xx==19) && (yy==19))
|
|
) {
|
|
printf("%d,%d -> %0.2lf,%0.2lf\n",xx,yy,au,av);
|
|
}
|
|
|
|
color_equals(color);
|
|
plot(xx+20,yy+20);
|
|
|
|
u=u+dx;
|
|
v=v+dy;
|
|
|
|
}
|
|
/* move on to next line */
|
|
/* since we start in upper left, add dy */
|
|
|
|
/* note: change sign for crazy effects */
|
|
u=_u-dy;
|
|
v=_v+dx;
|
|
|
|
}
|
|
theta+=(PI/4.0);
|
|
|
|
// scale-=0.008;
|
|
|
|
usleep(30000);
|
|
|
|
frame++;
|
|
/* reset */
|
|
// if (frame==128) {
|
|
// sleep(1);
|
|
// theta=0;
|
|
// scale=1.0;
|
|
// frame=0;
|
|
// }
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|