I have no idea why I am doing this...

1 files changed, 0 insertions, 480 deletions

diff --git a/src/graphics.c b/src/graphics.c
deleted file mode 100644
index 3cb973f..0000000
--- a/src/graphics.c
+++ /dev/null
@@ -1,480 +0,0 @@
-#define _POSIX_C_SOURCE 200809L //for fileno and strdup
-#define _BSD_SOURCE
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <assert.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <stdlib.h>
-#include <time.h>
-#define __USE_GNU //for longer math constants
-#include <math.h>
-
-#include "config.h"
-#include "common.h"
-
-#include "graphics_backend.h" //this header includes all the functions you'll need to implement if you want to port hackvr to something else
-#include "graphics.h"
-
-//typedef float real; //think this conflicts?
-
-//TODO: will have to make some pixmaps get resized when the window does.
-//for now set them to be as big as you think you'll ever resize the window to.
-
-#define SKYRULE 90
-#define SKYW (WIDTH*5)
-#define SKYH (HEIGHT/2)
-
-extern struct global global;
-struct gra_global gra_global;
-
-#ifdef GRAPHICAL
-
-//used to figure out what c2 values are associated with each edge of the window.
-//#define TOP     160.0
-//#define BOTTOM  -160.0
-#define TOP     240.0
-#define BOTTOM  -240.0
-#define RIGHT   320.0
-#define LEFT    -320.0
-
-int c2sX(real x) { return (gra_global.width/(gra_global.split_screen / (gra_global.red_and_blue ? gra_global.split_screen: 1))) * ((x + RIGHT) / (RIGHT *2)) + gra_global.xoff; }
-int s2cX(real x) { return (x/(gra_global.width/(gra_global.split_screen / (gra_global.red_and_blue?gra_global.split_screen :1))))*(RIGHT*2)-RIGHT; }
-
-int c2sY(real y) { return gra_global.height * ((TOP-y) / (TOP*2)); }
-int s2cY(real y) { return -((y/gra_global.height) * (TOP*2) - TOP); }
-
-cs_t c2_to_cs(c2_t p) {
- return (cs_t){c2sX(p.x),c2sY(p.y)};
-}
-c2_t cs_to_c2(cs_t p) {
- return (c2_t){s2cX(p.x),s2cY(p.y)};
-}
-/*
-real distance2(c2_t p1,c2_t p2) {
- return sqrtl(( (p1.x-p2.x)*(p1.x-p2.x) )+( (p1.y-p2.y)*(p1.y-p2.y) ));
-}
-*/
-real distance3(c3_t p1,c3_t p2) {
- return sqrtl(( (p1.x-p2.x)*(p1.x-p2.x) )+( (p1.y-p2.y)*(p1.y-p2.y) )+( (p1.z-p2.z)*(p1.z-p2.z) ));
-}
-
-/*
-real points_to_angle(c2_t p1,c2_t p2) {
-  real a=atan2l(p2.y-p1.y,p2.x-p1.x);
-  return a>=0?a:M_PIl+M_PIl+a;
-}
-*/
-/*
-real d2r(int d) {
- while(d<0) d+=360;
- return (real)(d%360) / (real)180 * M_PIl;
-}*/
-int r2d(real r) {
- return r / M_PIl * 180;
-}
-
-int between_angles(real angle,real lower,real upper) {
-  //lower may be higher than upper.
-  //because lower is < 0 which wraps to higher. lower is 270, upper is 90. 270-90 is in front.
-  if(lower > upper) {
-    if(angle > lower) return 1;
-    if(angle < upper) return 1;
-  }
-  if(upper > lower) {
-    if(angle > lower && angle < upper) return 1;
-  }
-  return 0;
-}
-
-/*
-B (x2,y2)
- |-.   c
-a|  '-.
- |     '-.
- '--------~
-C    b     A (x1,y1)
-*/
-
-//I'll need this for collision I guess.
-
-/*
-
-//use this for finding a line that intersects with what the camera is pointing at
-c2_t get_c2_intersection(c2_t p1,real theta,c2_t p2) {
-  real c;
-  c=distance2(p1,p2);
-  theta_a=C A B
-  b = (c/1) * (theta_a + theta_offset)
-}
-
-int get_2D_intersection_X(x1,y1,theta_offset,x2,y2) {
- int x3a,y3a,x3b,y3b;
- int a,b,c;//lenght of sides.
- int theta_a,theta_b,theta_c;//angles opposite of same named sides.
-
- //get angle C A B
- theta_a=
-// x1,y1,x2,y2
-
-//what are these d1 and d2?
- if(d1==d2) return global.math_error=1;
- c=dist(x1,y1,x2,y2);
- b = (c/1) * (theta_a + theta_offset);
- a = (c/1) * (theta_b + theta_offset);
-
- x3b=sin(theta_a) * b;
- y3b=cos(theta_a) * b;
- x3a=sin(theta_a) * a;
- y3a=cos(theta_a) * a;
- printf("x: %d %d\nx: %d %d\n",x3a,y3a,x3b,y3b);
-}
-
-int get_2D_intersection_Y(x,y,d,x,z,d) {
- int x3a,y3a,x3b,y3b;
- int a,b,c;//lenght of sides.
- int theta_a,theta_b,theta_c;//angles opposite of same named sides.
-
- //get angle from A to B.
- x1,y1,x2,y2
-
- if(d1==d2) return global.math_error=1;
- c=dist(x1,y1,x2,y2);
- b = (c/1) * theta_a;
- a = (c/1) * theta_b;
-
- x3b=sin(a) * b;
- y3b=cos(a) * b;
- x3a=sin(a) * a;
- y3a=cos(a) * a;
- printf("y: %d %d\ny: %d %d\n",x3a,y3a,x3b,y3b);
-}
-*/
-
-void draw_c2_line(c2_t p1,c2_t p2) {
-  draw_cs_line(c2_to_cs(p1),c2_to_cs(p2));
-}
-
-void draw_c3_shape(c3_s_t s) {//outlined. needs to be filled? //draw minimap shit in here too? probably...
-  int i;
-  cs_s_t ss;
-  ss.id=s.id;//it shouldn't disappear and we shouldn't need to make a copy.
-  ss.len=s.len;
-  for(i=0;i<s.len+(s.len==1);i++) {
-    ss.p[i]=c3_to_cs(s.p[i]);
-  }
-  if(gra_global.draw3d == 1) {
-    draw_cs_shape(ss);
-  }
-  if(gra_global.draw3d == 2) {
-    //set foreground to a gray based on distance
-    //between 0 to 100
-//    color_based_on_distance();//I don't have the distance in here. :/
-//foreground_set();
-//how... I want to draw the outline as one color and the fill as another.
-    draw_cs_filled_shape(ss);
-    set_color();//resets it to the default color.
-    if(!strcmp(global.selected_object,ss.id)) {
-      draw_cs_shape(ss);
-    }
-  }
-}
-
-#define MAGIC(x) (1.0l-(1.0l/powl(1.01l,(x)))) //??? might want to have some changables in here
-
-real magic(real x) {
-  return MAGIC(x);
-}
-
-void draw_graph(real (*fun)(real x)) {
- c2_t pa;
- draw_c2_line((c2_t){LEFT,0},(c2_t){RIGHT,0});
- draw_c2_line((c2_t){0,TOP},(c2_t){0,BOTTOM});
- for(pa.x=LEFT;pa.x<RIGHT;pa.x+=5.0) {
-  draw_c2_line((c2_t){pa.x,2.0},(c2_t){pa.x,-2.0});
- }
- for(pa.y=BOTTOM;pa.y<TOP;pa.y+=5.0) {
-  draw_c2_line((c2_t){-2.0,pa.y},(c2_t){2.0,pa.y});
- }
- for(pa.x=LEFT;pa.x<RIGHT;pa.x+=1.0) {
-  draw_c2_line((c2_t){pa.x,fun(pa.x)},(c2_t){pa.x+1.0,fun(pa.x+1.0)});
- }
-}
-
-c2_t c3_to_c2(c3_t p3) { //DO NOT DRAW STUFF IN HERE
-  c2_t p2;
-//  c3_t tmp1;
-//  c3_t tmp2;
-//  c3_t tmp3;
-  c3_t final;
-//these rotations need to be about the previous axis after the axis itself has been rotated.
-  final=rotate_c3_yr(p3,camera.p,d2r(camera.r.y));//rotate everything around the camera's location.
-//  final=rotate_c3_yr(p3,(c3_t){0,0,0},d2r(camera.yr));//rotate everything around the center no matter what.
-//  tmp2=rotate_c3_xr(tmp1,camera.p,d2r(camera.xr));
-//  final=rotate_c3_zr(tmp2,camera.p,d2r(camera.zr));
-  real delta_x=(camera.p.x - final.x);
-  real delta_y=(camera.p.y - final.y);
-  real delta_z=(camera.p.z - final.z);
-//  real d=distance3(camera.p,final);
-  p2.y=camera.zoom * (delta_y * MAGIC(delta_z) - delta_y);
-  p2.x=camera.zoom * (delta_x * MAGIC(delta_z) - delta_x);
-  return p2;
-}
-
-void draw_c3_line(c3_t p1,c3_t p2) {
-// if(!between_angles(points_to_angle((c2_t){camera.p.x,camera.p.z},(c2_t){p1.x,p1.z}),0,90) ||
-//    !between_angles(points_to_angle((c2_t){camera.p.x,camera.p.z},(c2_t){p2.x,p2.z}),0,90)) return;
- if(gra_global.drawminimap == 1) {
-  draw_c2_line((c2_t){(camera.p.x-2)*global.mmz,(camera.p.z+2)*global.mmz},(c2_t){(camera.p.x+2)*global.mmz,(camera.p.z-2)*global.mmz});
-  draw_c2_line((c2_t){(camera.p.x+2)*global.mmz,(camera.p.z+2)*global.mmz},(c2_t){(camera.p.x-2)*global.mmz,(camera.p.z-2)*global.mmz});
-  draw_c2_line((c2_t){p1.x*global.mmz,p1.z*global.mmz},(c2_t){p2.x*global.mmz,p2.z*global.mmz});
- }
- if(gra_global.drawminimap == 2) {//map rotates.
-  c3_t t1=rotate_c3_yr(p1,camera.p,d2r(camera.r.y));
-  c3_t t2=rotate_c3_yr(p2,camera.p,d2r(camera.r.y));
-  draw_c2_line((c2_t){t1.x*global.mmz,t1.z*global.mmz},(c2_t){t2.x*global.mmz,t2.z*global.mmz});
- }
- if(gra_global.draw3d != 0) draw_c2_line(c3_to_c2(p1),c3_to_c2(p2));
- if(global.debug) {
-  
- }
-}
-
-cs_t c3_to_cs(c3_t p) {
- return c2_to_cs(c3_to_c2(p));
-}
-
-real shitdist2(c3_t p1,c3_t p2) {
- return sqrtl(((p1.x - p2.x) * (p1.x - p2.x)) +
-        ((p1.y - p2.y) * (p1.y - p2.y)) +
-        ((p1.z - p2.z) * (p1.z - p2.z)));
-}
-
-real shitdist(struct c3_shape *s,c3_t p) {
-// apply rotation then find distance?
- int i;
- real total=0;
- for(i=0;i< s->len+(s->len==1);i++) {
-//  total=total+shitdist2(rotate_c3_yr(s->p[i],(c3_t){0,0,0},d2r(camera.yr)),camera.p);
-  total=total+shitdist2(rotate_c3_yr(s->p[i],camera.p,d2r(camera.r.y)),camera.p);
- }
- return (total) / (real)(s->len+(s->len==1));
-}
-
-
-void HatchLines(c2_t p1,c2_t p2,c2_t p3,int density) {
- real i=0;
- for(i=1;i<density;i=i+1) {//only need 1/2, not 0/2 and 2/2, those are edges of the triangle.
-  draw_c2_line(
-   (c2_t){((i*p1.x)+((density-i)*p3.x))/density,
-          ((i*p1.y)+((density-i)*p3.y))/density},
-   (c2_t){((i*p2.x)+((density-i)*p3.x))/density,
-          ((i*p2.y)+((density-i)*p3.y))/density}
-  );
- }
-}
-
-/*void DrawHatchedTriangle(struct c3_triangle t,int d) {
- c2_t p1,p2,p3;
- p1=c3_to_c2(t.p1);
- p2=c3_to_c2(t.p2);
- p3=c3_to_c2(t.p3);
- HatchLines(p1,p2,p3,d);
- HatchLines(p2,p3,p1,d);
- HatchLines(p1,p3,p2,d);
-}*/
-
-//^ subdivision algorithm for display purposes only.
-//black out the rest of the triangle first?
-//sounds alright to me...
-
-void draw_c2_text(c2_t p,char *text) {
- cs_t p2=c2_to_cs(p);
- draw_cs_text(p2,text);
-}
-
-void draw_c3_text(c3_t p,char *text) {
- cs_t p2=c3_to_cs(p);
- draw_cs_text(p2,text);
-}
-
-/*
-cs_t *c3s_to_css(c3_t *p3,int len) {
- cs_t *ps=malloc(sizeof(cs_t) * len);
- int i;
- for(i=0;i<len;i++) ps[i]=c3_to_cs(p3[i]);
- return ps;
-}*/
-
-int compar(zsort_t *a,zsort_t *b) {
- return ((a->d) < (b->d));
-}
-
-
-/*
-void draw_c3_point_text(c3_t p,char *text) {
- char tmp[256];
- int direction,ascent,descent;
- cs_t p2;
- p2=c3_to_cs(p);
- snprintf(tmp,sizeof(tmp)-1,"(%Lf,%Lf,%Lf)",p.x,p.y,p.z);
- XTextExtents(font,text,strlen(text),&direction,&ascent,&descent,&overall);
- XDrawString(global.dpy,global.backbuffer,global.backgc,p2.x,p2.y+(descent+ascent),tmp,strlen(tmp));
-}*/
-
-//push a string back into stdin so it can be read by the file loader. :P
-int selfcommand(char *s) {
- char t;
- if(!strlen(s)) return 0;
- ungetc(s[strlen(s)-1],stdin);
- t=s[strlen(s)-1];
- s[strlen(s)-1]=0;
- selfcommand(s);
- putchar(t);
- return 0;
-}
-#endif
-
-void draw_screen() {
-  int i;
-  int cn=0;//camera number.
-  char tmp[256];
-  zsort_t zs[SHAPES];
-  clear_backbuffer();
-  real oldx=camera.p.x;
-  real oldz=camera.p.z;
-
-  for(i=0;global.shape[i];i++) zs[i].s=global.shape[i];
-  for(i=0;global.shape[i];i++) zs[i].d=shitdist(zs[i].s,camera.p);
-  qsort(&zs,i,sizeof(zs[0]),(__compar_fn_t)compar);//sort these zs structs based on d.
-  if(i > 0 && zs[i-1].s) strcpy(global.selected_object,zs[i-1].s->id);
-
-  if(gra_global.split_screen > 1) {
-//oh... this will need to be a couple more lines
-   radians tmprad=d2r((degrees){camera.r.y.d+180});
-   radians tmprad2=d2r((degrees){camera.r.y.d+180});
-   camera.p.z-=(gra_global.split_flip)*((gra_global.split/gra_global.split_screen)*cosl( tmprad.r ));
-   camera.p.x-=(gra_global.split_flip)*((gra_global.split/gra_global.split_screen)*sinl( tmprad2.r ));
-  }
-  for(cn=0;cn<gra_global.split_screen;cn++) {
-    set_color();//restart each draw with the default color.
-    if(gra_global.red_and_blue) {
-     //set color for left half to red and right half to blue
-     //and draw mode for the gc to GXOr
-     red_and_blue_magic();
-     gra_global.xoff=0;//we're overlapping our drawing so no offset based on camera.
-    } else {
-     gra_global.xoff=(gra_global.width/gra_global.split_screen)*cn;
-    }
-    if(!gra_global.red_and_blue) {
-     set_clipping_rectangle(gra_global.xoff,0,gra_global.width/gra_global.split_screen,gra_global.height);//
-    }
-    if(gra_global.drawminimap == 3) { draw_graph(magic); continue; }
-    if(gra_global.drawsky) {
-     //XCopyArea(global.dpy,skypixmap,global.backbuffer,global.backgc,((camera.yr*5)+SKYW)%SKYW,0,WIDTH,global.height/2,0,0);
-    }
-    if(gra_global.draw3d) {
-      draw_c2_line((c2_t){LEFT,0},(c2_t){RIGHT,0}); //horizon
-    }
-    if(time(0) == gra_global.oldtime) {
-     gra_global.fps++;
-    }
-    else {
-     gra_global.oldtime=time(0);
-     gra_global.oldfps=gra_global.fps;
-     gra_global.fps=0;
-    }
-    //XSetForeground(global.dpy, global.backgc, global.green.pixel);
-    if(global.debug) {
-      snprintf(tmp,sizeof(tmp)-1,"debug: %s minimap: %d 3d: %d fps: %d shapes: %d",global.debug?"on":"off",gra_global.drawminimap,gra_global.draw3d,gra_global.oldfps,global.shapes);
-      draw_cs_text((cs_t){gra_global.xoff,(gra_global.height/2)+10},tmp);
-      snprintf(tmp,sizeof(tmp)-1,"x: %d y: %d",gra_global.mousex,gra_global.mousey);
-      draw_cs_text((cs_t){gra_global.xoff,(gra_global.height/2)+20},tmp);
-      snprintf(tmp,sizeof(tmp)-1,"cx: %Lf cy: %Lf cz: %Lf",camera.p.x,camera.p.y,camera.p.z);
-      draw_cs_text((cs_t){gra_global.xoff,(gra_global.height/2)+30},tmp);
-      snprintf(tmp,sizeof(tmp)-1,"xr: %d yr: %d zr: %d",camera.r.x.d,camera.r.y.d,camera.r.z.d);
-      draw_cs_text((cs_t){gra_global.xoff,(gra_global.height/2)+40},tmp);
-    }
-
-//  if(global.drawminimap) {//this isn't even useful I guess.
-   //cx1=(sinl(d2r(camera.yr+270))*7l);
-   //cy1=(cosl(d2r(camera.yr+270))*7l);
-   //cx2=(sinl(d2r(camera.yr+90))*7l);
-   //cy2=(cosl(d2r(camera.yr+90))*7l);
-//   draw_c2_line((c2_t){0,0},(c2_t){10,10});
-//   draw_c2_line((c2_t){0,0},(c2_t){-10,10});
-//   draw_c2_line((c2_t){10,10},(c2_t){-10,10});
-//  }
-
-   for(i=0;global.shape[i];i++) {
-    zs[i].d=shitdist(zs[i].s,camera.p);
-   }
-   qsort(&zs,i,sizeof(zs[0]),(__compar_fn_t)compar);//sort these zs structs based on d.
-   //draw all triangles
-   if(global.debug) {
-    snprintf(tmp,sizeof(tmp)-1,"selected object: %s",global.selected_object);
-    draw_cs_text((cs_t){gra_global.xoff,(gra_global.height/2)+50},tmp);
-   }
-   for(i=0;global.shape[i];i++) {
-    //now we pick the color of this triangle!
-    if(gra_global.red_and_blue) {
-     if(cn%2==0) {
-      set_color_red();
-     } else {
-      set_color_blue();
-     }
-//tests of blending grayscale with red and blue
-//     draw_c3_triangle(*(zs[i].t));
-    } else {
-//     if(!strcmp(global.selected_object,zs[i].s->id)) {
-      //XSetForeground(global.dpy,global.backgc,global.green.pixel);
-//     } else {
-//     }
-     set_color_based_on_distance(zs[i].d);
-    }
-    //if(between_angles(points_to_angle((c2_t){zs[i].s->p[0].x,zs[i].s->p[0].z},(c2_t){camera.p.x,camera.p.z}),d2r(camera.yr+45),d2r(camera.yr+135))) {
-//     set_color_based_on_distance(zs[i].d);
-     draw_c3_shape(*(zs[i].s));
-    //}
-   }
-//   XSetForeground(global.dpy, global.backgc, global.green.pixel);
-   radians tmprad=d2r((degrees){camera.r.y.d+180});
-   radians tmprad2=d2r((degrees){camera.r.y.d+180});
-   camera.p.z+=(gra_global.split_flip)*(gra_global.split*cosl( tmprad.r ));
-   camera.p.x+=(gra_global.split_flip)*(gra_global.split*sinl( tmprad2.r ));
-  }
-
-//TODO: figure out what all this shit is and either update or remove.
-//DONT USE WIDTH for shit.
-/*
-  x1=nextX(WIDTH/2,HEIGHT/2,d2r(camera.yr),40);
-  y1=nextY(WIDTH/2,HEIGHT/2,d2r(camera.yr),40);
-  x2=nextX(WIDTH/2,HEIGHT/2,d2r(camera.yr+180),80);
-  y2=nextY(WIDTH/2,HEIGHT/2,d2r(camera.yr+180),80);
-  XDrawLine(global.dpy,w,gc,WIDTH/2,HEIGHT/2,x1,y1);
-  XDrawLine(global.dpy,w,gc,WIDTH/2,HEIGHT/2,x2,y2);
-
-  XDrawLine(global.dpy,w,gc,0,HEIGHT/2,WIDTH,HEIGHT/2);
-
-  x1=global.mousex;
-  y1=global.mousey;
-  real a=points_to_angle((c2_t){0,0},cs_to_c2((cs_t){x1,y1}));
-
-  snprintf(tmp,sizeof(tmp)-1,"%llf",a);
-  XTextExtents(font,tmp,strlen(tmp),&direction,&ascent,&descent,&overall);
-  XDrawString(global.dpy,w,gc,global.xoff,(descent+0+ascent)*6,tmp,strlen(tmp));
-  snprintf(tmp,sizeof(tmp)-1,"%llf",points_to_angle(cs_to_c2((cs_t){global.mousex,global.mousey}),(c2_t){0,0})+(M_PIl/2));
-  XTextExtents(font,tmp,strlen(tmp),&direction,&ascent,&descent,&overall);
-  XDrawString(global.dpy,w,gc,global.xoff,(descent+0+ascent)*7,tmp,strlen(tmp));
-  XDrawLine(global.dpy,w,gc,global.mousex,global.mousey,global.width/2,global.height/2);
-
-  real c=cosl(d2r(camera.yr) - a) * distance((c2_t){x1,y1},(c2_t){WIDTH/2,HEIGHT/2});
-  x2=nextX(x1,y1,d2r(camera.yr-90),c);
-  y2=nextY(x1,y1,d2r(camera.yr-90),c);
-  XDrawLine(global.dpy,w,gc,x1,y1,x2,y2);
-*/
-  camera.p.x = oldx;
-  camera.p.z = oldz; //-= cn*CAMERA_SEPARATION;
-  flipscreen();
-}