From e42727977b3dab7aecff0ce8afa5b16abcd8b26b Mon Sep 17 00:00:00 2001
From: Justin Worthe <justin.worthe@gmail.com>
Date: Wed, 3 Jun 2015 21:22:14 +0200
Subject: Started reading of gamestate

---
 .gitignore           |  1 +
 include/alien.h      |  1 +
 include/game_state.h |  2 +-
 src/game_state.cpp   | 31 +++++++++++++++++++++++++++++++
 src/spacebot.cpp     |  2 +-
 5 files changed, 35 insertions(+), 2 deletions(-)
 create mode 100644 src/game_state.cpp

diff --git a/.gitignore b/.gitignore
index 87be59f..bf013a7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ cppbot
 *.sdf
 *.suo
 Debug/
+Makefile
diff --git a/include/alien.h b/include/alien.h
index 476990b..2f7d596 100644
--- a/include/alien.h
+++ b/include/alien.h
@@ -3,6 +3,7 @@
 class Alien {
 public:
     Alien(int x, int y);
+    const static char MAP_CHAR = 'x';
 private:
     int x;
     int y;
diff --git a/include/game_state.h b/include/game_state.h
index abb2efa..aa49fc8 100644
--- a/include/game_state.h
+++ b/include/game_state.h
@@ -11,7 +11,7 @@
 class GameState
 {
 public:
-    GameState(const std::istream& mapFile){}
+    GameState(std::istream& mapFile);
 private:
     std::vector<Alien> aliens;
     std::vector<EnemyBullet> bullets;
diff --git a/src/game_state.cpp b/src/game_state.cpp
new file mode 100644
index 0000000..48a9e42
--- /dev/null
+++ b/src/game_state.cpp
@@ -0,0 +1,31 @@
+#include "game_state.h"
+#include <iostream>
+
+const int OPENING_LINES = 6;
+const int GAME_AREA_LINES = 25;
+
+GameState::GameState(std::istream& file)
+{
+    for (int i=0; i<OPENING_LINES; ++i)
+    {
+        file.ignore(numeric_limits<streamsize>::max(), '\n');
+    }
+    
+    int x = -1;
+    int y = 0;
+    char nextChar = ' ';
+    while (char nextChar = file.get())
+    {
+	++x;
+	switch (nextChar)
+	{
+	case Alien.MAP_CHAR:
+	    aliens.push_back(Alien(x,y));
+	    break;
+	case '\n':
+	    ++y;
+	    x = -1;
+	    break;
+	}
+    }
+}
diff --git a/src/spacebot.cpp b/src/spacebot.cpp
index b297eb3..7460fe3 100644
--- a/src/spacebot.cpp
+++ b/src/spacebot.cpp
@@ -5,7 +5,7 @@
 
 Spacebot::Spacebot(std::string outputPath)
     : outputPath(std::move(outputPath)),
-      gameState(std::ifstream(outputPath+"/map.txt", std::ifstream::in))
+      gameState(std::ifstream(outputPath+"/map.txt"))
 {
 }
 
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