Separate into multiple compilation units, add color functions

* fix cartesian coordinate determination

1 files changed, 19 insertions, 0 deletions

diff --git a/src/color.cc b/src/color.cc
new file mode 100644
index 0000000..9af409a
--- /dev/null
+++ b/src/color.cc
@@ -0,0 +1,19 @@
+#include "color.h"
+
+namespace imgen {
+
+color red()     { return color{255,   0,   0}; }
+color lime()    { return color{  0, 255,   0}; }
+color blue()    { return color{  0,   0, 255}; }
+color yellow()  { return color{255, 255,   0}; }
+color cyan()    { return color{  0, 255, 255}; }
+color magenta() { return color{255,   0, 255}; }
+color silver()  { return color{192, 192, 192}; }
+color maroon()  { return color{128,   0,   0}; }
+color olive()   { return color{128, 128,   0}; }
+color green()   { return color{  0, 128,   0}; }
+color purple()  { return color{128,   0, 128}; }
+color teal()    { return color{  0, 128, 128}; }
+color navy()    { return color{  0,   0, 128}; }
+
+}