From efa47bcd8ff61d4ac1772f5791c5d0357b26aa07 Mon Sep 17 00:00:00 2001
From: Niki Roo <niki@nikiroo.be>
Date: Sun, 6 Apr 2025 21:47:53 +0200
Subject: [PATCH] new: reader

---
 src/tdef/reader.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 src/tdef/reader.h | 27 +++++++++++++++++++++++++++
 src/tdef/tdef.c   | 26 ++++++++++++++++++++++----
 3 files changed, 94 insertions(+), 4 deletions(-)
 create mode 100644 src/tdef/reader.c
 create mode 100644 src/tdef/reader.h

diff --git a/src/tdef/reader.c b/src/tdef/reader.c
new file mode 100644
index 0000000..73a99d5
--- /dev/null
+++ b/src/tdef/reader.c
@@ -0,0 +1,45 @@
+/*
+ * TDef: small reader defense game
+ *
+ * Copyright (C) 2025 Niki Roo
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "cutils/cstring.h"
+#include "reader.h"
+
+
+command read_command(FILE *file) {
+	static cstring_t *line = NULL;
+	
+	if (!line)
+		line = new_cstring();
+	
+	if (cstring_readline(line, file)) {
+		if (!strcmp(".", line->string)) {
+			return TICK;
+		} else if (!strcmp("=", line->string)) {
+			return DISPLAY;
+		} else {
+			return UNKNOWN;
+		}
+	}
+	
+	return QUIT;
+}
+
diff --git a/src/tdef/reader.h b/src/tdef/reader.h
new file mode 100644
index 0000000..5c6ea60
--- /dev/null
+++ b/src/tdef/reader.h
@@ -0,0 +1,27 @@
+/** 
+ * @file reader.h
+ * @author Niki
+ * @date 2025
+ * 
+ * @brief bla
+ *
+ * blablabla
+ *
+ */
+
+#ifndef READER_H
+#define READER_H
+
+#include <stdio.h>
+
+typedef enum {
+	TICK,
+	DISPLAY,
+	UNKNOWN,
+	QUIT
+} command;
+
+command read_command(FILE *file);
+
+#endif /* READER_H */
+
diff --git a/src/tdef/tdef.c b/src/tdef/tdef.c
index 976ed0f..8afc523 100644
--- a/src/tdef/tdef.c
+++ b/src/tdef/tdef.c
@@ -24,6 +24,7 @@
 #include "any.h"
 #include "map.h"
 #include "engine.h"
+#include "reader.h"
 
 void display(map_t *self) {
 	printf("==========\n\n");
@@ -83,12 +84,29 @@ int main(int argc, char **argv) {
 	engine_t *engine = new_engine(map);
 	
 	printf("Paths: %d\n", map->paths->count);
-	for (int i = 0 ; i < 11 ; i++) {	
-		printf("Tick is: %d\n", engine->current_tick);
-		engine_tick(engine);
-		display(map);
+	
+	command cmd = read_command(stdin);
+	while (cmd != QUIT) {
+		switch(cmd) {
+		case TICK:
+			printf("Tick is: %d\n", engine->current_tick);
+			engine_tick(engine);
+			break;
+		case DISPLAY:
+			display(map);
+			break;
+		case UNKNOWN:
+			printf("Unrecognized command\n");
+			break;
+		case QUIT:
+			// cannot happen, but kept for warning purposes
+			break;
+		}
+		
+		cmd = read_command(stdin);
 	}
 	
+	
 	free_engine(engine);
 	return 0;
 }
-- 
2.27.0