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Elementary Cellular Automata for Terminal OS X

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Don't forget the dec2bin.h library

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  1. #include <stdio.h>
  2. #include <unistd.h> //for the sleep function
  3. #include "dec2bin.h" //function to get the binary equivalent of the rule
  4. #include <string.h> //for the string comparison
  5.  
  6. int decimal;
  7. char binary[9]; 
  8. char neighbors[4];
  9. char bin1[4] = "111";
  10. char bin2[4] = "110";
  11. char bin3[4] = "101";
  12. char bin4[4] = "100";
  13. char bin5[4] = "011";
  14. char bin6[4] = "010";
  15. char bin7[4] = "001";
  16. char bin8[4] = "000";
  17. char singleLine[31], lineTemp[31];
  18. int i, j, iMin, iPlus, stringTest;
  19. void applyRules();
  20.  
  21. /****************************************************************/
  22. //Function to initiate the line to all 0, except the center one
  23. /****************************************************************/
  24.  
  25. void initLine(){
  26. 	for (i = 0; i < 31; i++) {
  27. 		singleLine[i] = '0';
  28. 		lineTemp[i] = '0';
  29. 	}
  30. 	singleLine[15] = '1';
  31. 	lineTemp[15] = '1';
  32. }
  33.  
  34. /****************************************************************/
  35. //Function to print the line 
  36. /****************************************************************/
  37.  
  38. void printLine(){
  39. 	for (i = 0; i < 31; i++) {
  40. 		if (singleLine[i] == '0') {
  41. 			printf("__");
  42. 		}
  43. 		else if (singleLine[i] == '1'){
  44. 			printf("[]");
  45. 		}
  46. 				 }
  47. 	printf("\n");
  48. 	applyRules();
  49. }
  50. /****************************************************************/
  51. //Function to apply the rules
  52. /****************************************************************/
  53.  
  54. void applyRules(){
  55. 	for (i = 0; i < 31; i++) {
  56.  
  57. 		if (i == 0){
  58. 			iMin = 30;
  59. 			iPlus = i+1;
  60. 		} 
  61. 		if (i == 30){
  62. 			iPlus = 0;
  63. 			iMin = i-1;
  64. 		} 
  65. 		else if (i != 0 && i != 30) {
  66. 			iMin = i-1;
  67. 			iPlus = i+1;
  68. 		}
  69. 		neighbors[0] = singleLine[iMin];
  70. 		neighbors[1] = singleLine[i];
  71. 		neighbors[2] = singleLine[iPlus];
  72.  
  73. 			if (strcmp(neighbors, bin1) == 0){
  74. 				lineTemp[i] = binary[0];
  75. 			}
  76. 			else if (strcmp(neighbors, bin2) == 0){
  77. 				lineTemp[i] = binary[1];
  78. 			}
  79. 			else if (strcmp(neighbors, bin3) == 0){
  80. 				lineTemp[i] = binary[2];
  81. 			}
  82. 			else if (strcmp(neighbors, bin4) == 0){
  83. 				lineTemp[i] = binary[3];
  84. 			}
  85. 			else if (strcmp(neighbors, bin5) == 0){
  86. 				lineTemp[i] = binary[4];
  87. 			}
  88. 			else if (strcmp(neighbors, bin6) == 0){
  89. 				lineTemp[i] = binary[5];
  90. 			}
  91. 			else if (strcmp(neighbors, bin7) == 0){
  92. 				lineTemp[i] = binary[6];
  93. 			}
  94. 			else if (strcmp(neighbors, bin8) == 0){
  95. 				lineTemp[i] = binary[7];
  96. 			}
  97.  
  98. 		}
  99. 	for (j = 0; j < 31; j++) {
  100. 		singleLine[j] = lineTemp[j];
  101. 	}
  102. 	usleep(50000);
  103. 	printLine();
  104. }
  105. /****************************************************************/
  106. /****************************************************************/
  107.  
  108.  
  109. int main (int argc, const char * argv[]) {
  110. 	initLine();
  111. 	printf("Which rule to use (0 - 255)?\n");
  112. 	scanf("%i", &decimal);
  113. 	dec2bin(decimal, binary);
  114. 	printf("\n The binary value of %i is %s \n",decimal,binary);
  115. 	printLine();
  116. 	return 0;
  117. }

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