A simple matrix like display using console. A project for fun back in 2004 - did it to see how simply I could recreate the effect. Meant to run with custom windows console settings (width,height, and text color). My original exe seems to be flagged as a trojan by microsoft security essentials so I've included the makefile to see if I can recreat…

Makefile.win

# Project: Project1
# Makefile created by Dev-C++ 4.9.9.0

CPP  = g++.exe
CC   = gcc.exe
WINDRES = windres.exe
RES  = 
OBJ  = main.o $(RES)
LINKOBJ  = main.o $(RES)
LIBS =  -L"G:/Program Files/Dev-Cpp/lib"  
INCS =  -I"G:/Program Files/Dev-Cpp/include" 
CXXINCS =  -I"G:/Program Files/Dev-Cpp/include/c++/3.3.1"  -I"G:/Program Files/Dev-Cpp/include/c++/3.3.1/mingw32"  -I"G:/Program Files/Dev-Cpp/include/c++/3.3.1/backward"  -I"G:/Program Files/Dev-Cpp/lib/gcc-lib/mingw32/3.3.1/include"  -I"G:/Program Files/Dev-Cpp/include" 
BIN  = matrix.exe
CXXFLAGS = $(CXXINCS)  
CFLAGS = $(INCS)  

.PHONY: all all-before all-after clean clean-custom

all: all-before matrix.exe all-after


clean: clean-custom
	rm -f $(OBJ) $(BIN)

$(BIN): $(OBJ)
	$(CC) $(LINKOBJ) -o "matrix.exe" $(LIBS)

main.o: main.c
	$(CC) -c main.c -o main.o $(CFLAGS)

matrix.c

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <time.h>
#define SIZESCREEN 249
 
int randomizer(int lower, int upper)             //uses diffrence to get range, then lower as base (ie rand()% diff + lower)
{
 
    return ((rand()%((upper+1)-lower))+lower);
}    
 
 
 
int main(int argc, char *argv[])
{
srand((unsigned int)time(0)); //set seed
  int i;
  int j;
  int k;
  int l;
  int m;
  int end = 100;
  int rand1;
  int rand2;
  int rand3;
  int rand4;
  int charconstant = 48;
  int timera;
  int timerd;
   
  int pos[SIZESCREEN];
  int matrix[SIZESCREEN];
   
  for(l=0;l<SIZESCREEN;l++) pos[l]=32;
   
  while(end!=0)
  {
      end--;
      rand2 = randomizer(1,20);
      for(k=0;k<rand2;k++)
      {
           
 
           
          for(l=0;l<79;l++)
          {      
              rand3 = randomizer(0,SIZESCREEN);
              rand4 = randomizer(0,59);
              if(rand4==0) pos[rand3]=0;
              if(rand4==1) pos[rand3]=1;
              if(rand4>1) pos[rand3]=32;
          }
               
           
              for(m=0;m<SIZESCREEN;m++)
              {
                   
              matrix[m]=pos[m];
 
              }    
           
 
           
              rand1 = randomizer(5,20);
              for(j=0;j<rand1;j++)
              {
               
                  for(i=0;i<SIZESCREEN;i++)
                  {
 
                       
                      if(matrix[i]<2 || (matrix[i]>47 && matrix[i]<123))
                      {
                          matrix[i] = randomizer(49,121);
                      }else{
                          matrix[i] = 32;
                      }
                      printf("%c", matrix[i]);
                       
                            
                            
                            
                       
                      //+48
                  }
                   
                  timera=0;
                            
                           while(timera<6000000) timera++;
                     if(10000 == randomizer(1,10000)) {system("cls");}
                  printf("\n");
              }
           
           
      }
  }    
   
   
  system("PAUSE");  
  return 0;
}