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second: add some code comments to the box converter

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This commit is contained in:
Vince Weaver 2023-10-04 12:45:51 -04:00
parent 64f16c560f
commit 2356da7969
1 changed files with 7 additions and 2 deletions
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9
demos/second/part18_3d/auto/box_convert.c
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@ -1,6 +1,6 @@
/* box_convert */
/* Try to automate the loser conversion process */
/* Try to automate part of the annoyingly tedious rotoscoping process */
#include <stdio.h>
#include <stdlib.h>
@ -36,6 +36,9 @@ static char color_names[16][16]={
"WHITE", /* $0F */
};
/* There's probably an algorithmic way of generating this at run time */
/* but I was too lazy to implement it */
/* We only do 4. All 16 would be prohibitive. Maybe a happy medium? */
static int permutations[24][4]={
{1,2,3,4},
{2,1,3,4},
@ -98,6 +101,7 @@ static int framebuffer[40][48];
static int framebuffer_saved[40][48];
static int background_color=0;
/* Not used anymore, included for historical reasons */
int create_using_plots(void) {
int current_primitive=0;
@ -142,7 +146,7 @@ static void permute_colors(int which) {
}
}
/* Not used anymore, included for historical reasons */
int create_using_hlins(void) {
int current_primitive=0;
@ -174,6 +178,7 @@ int create_using_hlins(void) {
return current_primitive;
}
/* Not used anymore, included for historical reasons */
int create_using_hlins_by_color(void) {
int current_primitive=0;