Some code

- A main()
- A Scene type
- Some functions on Scenes

SConstruct

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+# SConstruct
+# vim: set ft=python:
+#
+# Toplevel Scons build script for the Charles project.
+#
+# Eryn Wells <eryn@erynwells.me>
+
+
+#
+# DEFAULT CONFIGURATION VALUES
+#
+
+# Enabling debugging does the following things:
+#   1. Turns on debugging symbols
+#   2. Turns off all optimization
+#   3. Sets the DEBUG define
+DEBUG = True
+
+# Show build commands ("cc [args] -o [out] [file], etc"). If this is False, show
+# some nice messages for each step of the build.
+BUILD_CMDS = False
+
+# Library directories. Where should scons look for .a files during linking?
+lib_directories = Split("""
+""")
+
+# Source directories. New directories should contain a SConscript file and be
+# added here.
+source_directories = lib_directories + Split("""
+        #src
+""")
+
+# Include directories. Where should scons look for headers during preprocessing
+# and compiling?
+include_directories = Split("""
+        #src
+""")
+ 
+
+#
+# BUILD STUFF BELOW HERE
+#
+
+import os.path
+
+
+env = Environment(CC='clang',
+                  CFLAGS='-Wall -fcolor-diagnostics',
+                  CPPPATH=include_directories,
+                  LINKFLAGS='',
+                  LIBPATH=lib_directories)
+
+
+# Handle command line variables
+DEBUG = bool(int(ARGUMENTS.get('DEBUG', DEBUG)))
+if DEBUG:
+    env.Append(CXXFLAGS=' -g -O0')
+    env.Append(CPPDEFINES=['DEBUG'])
+else:
+    env.Append(CXXFLAGS=' -O2')
+
+BUILD_CMDS = bool(int(ARGUMENTS.get('BUILD_CMDS', BUILD_CMDS)))
+if not BUILD_CMDS:
+    def generate_comstr(action):
+        return '%12s: $TARGET' % (action,)
+    env['CCCOMSTR'] = generate_comstr('Building'),
+    env['LINKCOMSTR'] = generate_comstr('Linking'),
+    env['ARCOMSTR'] = generate_comstr('Archiving'),
+    env['RANLIBCOMSTR'] = generate_comstr('Indexing')
+
+
+# Build source subdirectories
+env.SConscript([os.path.join(dir, 'SConscript') for dir in source_directories],
+               exports='env')
+
+Default('charles')

src/SConscript

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+Import('env')
+
+files = Split("""
+    charles.c
+""")
+
+prog = env.Program('charles', files)
+env.Alias('charles', prog)

src/charles.c

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+/* charles.c
+ *
+ * Entry point for Charles, including main().
+ *
+ * Eryn Wells <eryn@erynwells.me>
+ */
+
+
+int
+main(int argc,
+     const char *argv[])
+{
+    return 0;
+}

src/scene.c

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+/* scene.c
+ *
+ * Definition of Scene-related functions.
+ *
+ * Eryn Wells <eryn@erynwells.me>
+ */
+
+
+#include "scene.h"
+
+
+/*
+ * scene_init --
+ */
+void
+scene_init(Scene *scene)
+{
+    scene->height = 0;
+    scene->width = 0;
+}
+
+
+/*
+ * scene_destroy --
+ */
+void
+scene_destroy(Scene *scene)
+{ }

src/scene.h

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+/* scene.h
+ *
+ * Definition of Scene type and related functions.
+ *
+ * Eryn Wells <eryn@erynwells.me>
+ */
+
+#ifndef __SCENE_H__
+#define __SCENE_H__
+
+
+typedef struct _Scene
+{
+    int height, width;      /* Pixel dimensions. */
+} Scene;
+
+
+void scene_init(Scene *scene);
+void scene_destroy(Scene *scene);
+
+
+#endif