Optimize terminal usage

The ^C-catching stuff will not work on windows; need to look into that

1 files changed, 18 insertions, 4 deletions

diff --git a/main.cpp b/main.cpp
index 3d4a048..d75c253 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,6 +8,7 @@
 #include <tuple>
 #include <cctype>
 #include <cassert>
+#include <signal.h>
 #include <sys/time.h>
 #include "params.h"
 #include "world.h"
@@ -210,6 +211,16 @@ string preprocess(istream &file){
 }
 
 
+static ScreenBuffer *sb;
+
+static void signalHandler(int sig){
+	if(sig==SIGINT){
+		sb->emergencyDeinit();
+		_exit(130);
+	}
+}
+
+
 int main(int argc,char **argv){
 	struct timeval tv;
 	gettimeofday(&tv,nullptr);
@@ -249,11 +260,14 @@ int main(int argc,char **argv){
 		}
 	}
 
-	world.print();
+	sb=new ScreenBuffer(SIZE*3,SIZE);
+	signal(SIGINT,signalHandler);
+	world.print(*sb);
 	for(int i=0;i<C::autoTimeout;i++){
-		world.tick();
 		usleep(3000);
-		cout<<"\x1B[2J\x1B[H";
-		world.print();
+		world.tick();
+		world.print(*sb);
+		sb->draw();
 	}
+	delete sb;
 }