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#include "color.h" |
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+ |
#include "fvect.h" |
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#include "ambient.h" |
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#define getvec(v,fp) (v)[0]=getflt(fp);(v)[1]=getflt(fp);(v)[2]=getflt(fp) |
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#define badflt(x) ((x) < -FHUGE || (x) > FHUGE) |
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#define badvec(v) (badflt((v)[0]) || badflt((v)[1]) || badflt((v)[2])) |
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extern double getflt(); |
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extern long getint(); |
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| 69 |
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} |
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| 71 |
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| 72 |
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int |
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ambvalOK(av) /* check consistency of ambient value */ |
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register AMBVAL *av; |
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{ |
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double d; |
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|
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if (badvec(av->pos)) return(0); |
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if (badvec(av->dir)) return(0); |
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d = DOT(av->dir,av->dir); |
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if (d < 0.9999 || d > 1.0001) return(0); |
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if (av->lvl < 0 || av->lvl > 100) return(0); |
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if (av->weight <= 0. || av->weight > 1.) return(0); |
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if (av->rad <= 0. || av->rad >= FHUGE) return(0); |
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if (colval(av->val,RED) < 0. || |
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colval(av->val,RED) > FHUGE || |
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colval(av->val,GRN) < 0. || |
| 88 |
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colval(av->val,GRN) > FHUGE || |
| 89 |
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colval(av->val,BLU) < 0. || |
| 90 |
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colval(av->val,BLU) > FHUGE) return(0); |
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if (badvec(av->gpos)) return(0); |
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+ |
if (badvec(av->gdir)) return(0); |
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return(1); |
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+ |
} |
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+ |
|
| 96 |
+ |
|
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readambval(av, fp) /* read ambient value from stream */ |
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register AMBVAL *av; |
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FILE *fp; |
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av->rad = getflt(fp); |
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getvec(av->gpos, fp); |
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getvec(av->gdir, fp); |
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< |
return(feof(fp) ? 0 : 1); |
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> |
return(feof(fp) ? 0 : ambvalOK(av)); |
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} |
