1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/examples/simple/simple.psys	Thu Sep 06 02:32:58 2012 +0300
     1.3 @@ -0,0 +1,36 @@
     1.4 +# Particle system definition file format example
     1.5 +#
     1.6 +# lines of key = value pairs.
     1.7 +# animated attributes can be defined as key(time) = value.
     1.8 +# time defaults to 0 if missing. time values can have an optional s suffix,
     1.9 +# signifying seconds, otherwise they are assumed to be in milliseconds.
    1.10 +#
    1.11 +# string values enclosed in double quotes
    1.12 +# vector values enclosed in square brackets [x y z]
    1.13 +# randomized values have a pair of values/vectors separated by a tilde:
    1.14 +# center ~ range. If the range is missing, it's assumed to be 0.
    1.15 +
    1.16 +# texture: string
    1.17 +texture = "pimg.png"
    1.18 +# spawn_range: track3
    1.19 +spawn_range = [0.3 0.3 0.3]
    1.20 +# rate: track
    1.21 +# life: randomized track
    1.22 +life = 2
    1.23 +# size: randomized track
    1.24 +# dir: randomized track3
    1.25 +dir = [0 0 0] ~ [4 4 4]
    1.26 +# grav: track3
    1.27 +grav = [0 -4 0]
    1.28 +# drag: val
    1.29 +drag = 2
    1.30 +
    1.31 +# particle attributes
    1.32 +# pcolor: track3
    1.33 +pcolor(0) = [1 0.6 0.4]
    1.34 +pcolor(1000) = [0.6 0.3 1]
    1.35 +# palpha: track
    1.36 +palpha(0) = 1
    1.37 +palpha(700) = 1
    1.38 +palpha(1000) = 0
    1.39 +# psize: track

     2.1 --- a/src/pattr.c	Wed Aug 29 05:11:47 2012 +0300
     2.2 +++ b/src/pattr.c	Thu Sep 06 02:32:58 2012 +0300
     2.3 @@ -7,6 +7,7 @@
     2.4  
     2.5  static int init_particle_attr(struct psys_particle_attributes *pattr);
     2.6  static void destroy_particle_attr(struct psys_particle_attributes *pattr);
     2.7 +static char *stripspace(char *str);
     2.8  
     2.9  static void *tex_cls;
    2.10  static unsigned int (*load_texture)(const char*, void*) = psys_gl_load_texture;
    2.11 @@ -125,7 +126,30 @@
    2.12  
    2.13  int psys_load_attr_stream(struct psys_attributes *attr, FILE *fp)
    2.14  {
    2.15 -	return -1;	/* TODO */
    2.16 +	int lineno = 0;
    2.17 +	char buf[512];
    2.18 +
    2.19 +	psys_init_attr(attr);
    2.20 +
    2.21 +	while(fgets(buf, sizeof buf, fp)) {
    2.22 +		char *key, *valstr;
    2.23 +
    2.24 +		lineno++;
    2.25 +
    2.26 +		key = stripspace(buf);
    2.27 +		if(key[0] == '#' || !key[0]) {
    2.28 +			continue;	// skip empty lines and comments
    2.29 +		}
    2.30 +
    2.31 +		if(!(valstr = strchr(buf, '='))) {
    2.32 +			fprintf(stderr "%s: invalid input: %s\n", __func__, line);
    2.33 +			return -1;
    2.34 +		}
    2.35 +		*valstr++ = 0;
    2.36 +		valstr = stripspace(valstr);
    2.37 +
    2.38 +
    2.39 +	}
    2.40  }
    2.41  
    2.42  
    2.43 @@ -147,3 +171,19 @@
    2.44  {
    2.45  	return -1;	/* TODO */
    2.46  }
    2.47 +
    2.48 +
    2.49 +static char *stripspace(char *str)
    2.50 +{
    2.51 +	char *end;
    2.52 +
    2.53 +	while(*str && isspace(*str)) {
    2.54 +		str++;
    2.55 +	}
    2.56 +
    2.57 +	end = str + strlen(str);
    2.58 +	while(end >= str && isspace(*end)) {
    2.59 +		*end-- = 0;
    2.60 +	}
    2.61 +	return str;
    2.62 +}

     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/src/pattr_parser.c	Thu Sep 06 02:32:58 2012 +0300
     3.3 @@ -0,0 +1,6 @@
     3.4 +#include "pattr_parser.h"
     3.5 +
     3.6 +struct cfg_node *psys_parse(const char *buf)
     3.7 +{
     3.8 +
     3.9 +}

     4.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     4.2 +++ b/src/pattr_parser.h	Thu Sep 06 02:32:58 2012 +0300
     4.3 @@ -0,0 +1,21 @@
     4.4 +#ifndef PATTR_PARSER_H_
     4.5 +#define PATTR_PARSER_H_
     4.6 +
     4.7 +struct cfg_value {
     4.8 +	int nelem;
     4.9 +	float v[4];
    4.10 +};
    4.11 +
    4.12 +struct cfg_node {
    4.13 +	char *name, *valstr;
    4.14 +
    4.15 +	long tm;
    4.16 +	struct cfg_value val, range;
    4.17 +
    4.18 +	struct cfg_node *next;
    4.19 +};
    4.20 +
    4.21 +struct cfg_node *psys_parse(const char *buf);
    4.22 +
    4.23 +
    4.24 +#endif	/* PATTR_PARSER_H_ */