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nuclear@1
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1 #include <stdio.h>
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nuclear@1
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2 #include <string.h>
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nuclear@1
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3 #include <stdlib.h>
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nuclear@0
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4 #include "opt.h"
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nuclear@0
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5
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nuclear@1
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6 Options opt;
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nuclear@1
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7
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nuclear@1
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8 static void default_opt()
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nuclear@1
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9 {
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nuclear@1
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10 opt.xsz = 800;
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nuclear@1
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11 opt.ysz = 450;
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nuclear@1
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12 opt.stereo = false;
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nuclear@1
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13
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nuclear@1
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14 opt.world_size[0] = opt.world_size[1] = 128;
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nuclear@1
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15 opt.world_size[2] = 64;
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nuclear@1
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16
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nuclear@1
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17 opt.gen_noise_scale = 1.0f;
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nuclear@4
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18 opt.gen_num_blobs = 10;
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nuclear@1
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19 }
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nuclear@1
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20
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nuclear@0
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21 bool parse_opt(int argc, char **argv)
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nuclear@0
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22 {
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nuclear@1
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23 default_opt();
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nuclear@1
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24
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nuclear@1
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25 for(int i=1; i<argc; i++) {
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nuclear@1
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26 if(argv[i][0] == '-') {
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nuclear@1
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27 if(strcmp(argv[i], "-size") == 0) {
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nuclear@1
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28 if(sscanf(argv[++i], "%dx%d", &opt.xsz, &opt.ysz) != 2) {
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nuclear@1
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29 fprintf(stderr, "-size must be followed by <width>x<height>\n");
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nuclear@1
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30 return false;
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nuclear@1
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31 }
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nuclear@1
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32 } else if(strcmp(argv[i], "-world") == 0) {
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nuclear@1
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33 if(sscanf(argv[++i], "%dx%dx%d", opt.world_size, opt.world_size + 1, opt.world_size + 2) != 3) {
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nuclear@1
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34 fprintf(stderr, "-world must be followed by <width>x<height>x<depth>\n");
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nuclear@1
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35 return false;
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nuclear@1
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36 }
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nuclear@1
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37 } else if(strcmp(argv[i], "-genscale") == 0) {
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nuclear@1
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38 char *endp;
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nuclear@1
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39 opt.gen_noise_scale = strtod(argv[++i], &endp);
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nuclear@1
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40 if(endp == argv[i]) {
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nuclear@1
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41 fprintf(stderr, "-genscale must be followed by a scaling factor\n");
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nuclear@1
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42 return false;
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nuclear@1
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43 }
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nuclear@4
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44 } else if(strcmp(argv[i], "-blobs") == 0) {
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nuclear@4
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45 char *endp;
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nuclear@4
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46 opt.gen_num_blobs = strtol(argv[++i], &endp, 10);
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nuclear@4
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47 if(endp == argv[i]) {
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nuclear@4
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48 fprintf(stderr, "-blobs must be followed by the number of blobs\n");
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nuclear@4
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49 return false;
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nuclear@4
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50 }
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nuclear@1
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51 } else if(strcmp(argv[i], "-stereo") == 0) {
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nuclear@1
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52 opt.stereo = true;
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nuclear@1
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53 } else {
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nuclear@1
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54 fprintf(stderr, "invalid option: %s\n", argv[i]);
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nuclear@1
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55 return false;
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nuclear@1
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56 }
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nuclear@1
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57 } else {
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nuclear@1
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58 fprintf(stderr, "unexpected argument: %s\n", argv[i]);
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nuclear@1
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59 return false;
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nuclear@1
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60 }
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nuclear@1
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61 }
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nuclear@0
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62 return true;
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nuclear@0
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63 }
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