From ebaacbbb4af1e4445c015f7133b337b698185ba7 Mon Sep 17 00:00:00 2001
From: Philip J Freeman <elektron@halo.nu>
Date: Mon, 16 Dec 2019 16:15:27 -0800
Subject: stars: fix bugs, big refactor for resizing

- use a context not globals
- use floats and a "unit cube" to simulate the starfield
---
 src/modules/stars/starslib.c | 133 -------------------------------------------
 1 file changed, 133 deletions(-)
 delete mode 100644 src/modules/stars/starslib.c

(limited to 'src/modules/stars/starslib.c')

diff --git a/src/modules/stars/starslib.c b/src/modules/stars/starslib.c
deleted file mode 100644
index 9d43062..0000000
--- a/src/modules/stars/starslib.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * a starfield simulation library from: https://github.com/ph1l/stars
- * Copyright 2014 Philip J. Freeman <elektron@halo.nu>
- */
-
-#include <stdlib.h>
-#ifdef DEBUG
-#include <stdio.h>
-#endif
-#include "starslib.h"
-
-struct points
-{
-	int x, y, z;
-	struct points *next;
-};
-
-void new_universe( struct universe** u, int width, int height, int depth )
-{
-	*u = malloc(sizeof(struct universe));
-
-	(*u)->width  = width;
-	(*u)->height = height;
-	(*u)->depth  = depth;
-
-	(*u)->iterator  = NULL;
-	(*u)->points  = NULL;
-	#ifdef DEBUG
-	printf("NEW UNIVERSE: %lx: (%i,%i,%i)\n", (long unsigned int )(*u), (*u)->width, (*u)->height, (*u)->depth);
-	#endif
-
-	return;
-}
-
-void new_point( struct universe* u )
-{
-
-	struct points* p_ptr = malloc(sizeof(struct points));
-
-	p_ptr->x    = (rand()%u->width - (u->width/2)) * u->depth;
-	p_ptr->y    = (rand()%u->height - (u->height/2)) * u->depth;
-	p_ptr->z    = u->depth;
-
-	p_ptr->next = u->points;
-	u->points = p_ptr;
-	#ifdef DEBUG
-	printf("NEW POINT: %lx: (%i,%i,%i) next=%lx\n", (long unsigned int )p_ptr, p_ptr->x, p_ptr->y, p_ptr->z, (long unsigned int) p_ptr->next);
-	#endif
-
-	return;
-}
-
-void kill_point( struct universe* universe, struct points* to_kill )
-{
-
-	struct points *p_ptr, *last_ptr = NULL;
-
-
-	for ( p_ptr = universe->points; p_ptr != NULL; p_ptr = p_ptr->next)
-	{
-		if (p_ptr == to_kill)
-		{
-			#ifdef DEBUG
-			printf("KILL POINT: %lx: (%i,%i,%i).\n", (long unsigned int )p_ptr, p_ptr->x, p_ptr->y, p_ptr->z);
-			#endif
-			if (last_ptr == NULL)
-			{
-				universe->points = p_ptr->next;
-			} else {
-				last_ptr->next = p_ptr->next;
-			}
-			free(p_ptr);
-		} else {
-			last_ptr = p_ptr;
-		}
-	}
-	#ifdef DEBUG
-	printf("KILL POINT: %lx\n", (long unsigned int )p_ptr);
-	#endif
-	return;
-}
-
-int process_point( struct universe *u, struct return_point *rp )
-{
-
-	if ( u->iterator == NULL ) {
-		if (u->points == NULL){
-			return 0;
-		} else {
-			u->iterator = u->points;
-		}
-	}
-
-	if ( u->iterator->z == 0 ){
-		// Delete point that has reached us.
-		struct points *tmp = u->iterator;
-		u->iterator = u->iterator->next;
-		kill_point( u, tmp );
-		return(-1);
-	} else {
-		// Plot the point
-		int x, y;
-		x = u->iterator->x / u->iterator->z;
-		y = u->iterator->y / u->iterator->z;
-		if ( abs(x) >= u->width/2 || abs(y) >= u->height/2 ){
-			// Delete point that is off screen
-			struct points *tmp = u->iterator;
-			u->iterator = u->iterator->next;
-			kill_point( u, tmp );
-			if ( u->iterator == NULL ) {
-				return(0);
-			} else {
-				return(-1);
-			}
-		} else {
-			int m = OPACITY_MAX*((u->depth-u->iterator->z)*4)/u->depth;
-			if ( m>OPACITY_MAX ){ m=OPACITY_MAX; }
-			u->iterator->z = u->iterator->z - 1;
-			#ifdef DEBUG
-			printf("RETURN POINT: %lx\n", (long unsigned int )u->iterator);
-			#endif
-			u->iterator = u->iterator->next;
-			rp->x = x;
-			rp->y = y;
-			rp->opacity = m;
-			if ( u->iterator == NULL ) {
-				return(0);
-			} else {
-				return(1);
-			}
-		}
-	}
-}
-- 
cgit v1.2.1