day/night cycling

1 files changed, 22 insertions, 0 deletions

diff --git a/src/common.cpp b/src/common.cpp
index cd568ad..a8a964e 100644
--- a/src/common.cpp
+++ b/src/common.cpp
@@ -10,3 +10,25 @@ void DEBUG_prints(const char* file, int line, const char *s,...){
 	vprintf(s,args);
 	va_end(args);
 }
+
+void safeSetColor(int r,int g,int b){	// safeSetColor() is an alternative to directly using glColor3ub() to set
+	if(r>255)r=255;						// the color for OpenGL drawing. safeSetColor() checks for values that are
+	if(g>255)g=255;						// outside the range of an unsigned character and sets them to a safer value.
+	if(b>255)b=255;
+	if(r<0)r=0;
+	if(g<0)g=0;
+	if(b<0)b=0;
+	glColor3ub(r,g,b);
+}
+
+void safeSetColorA(int r,int g,int b,int a){
+	if(r>255)r=255;
+	if(g>255)g=255;
+	if(b>255)b=255;
+	if(a>255)a=255;
+	if(r<0)r=0;
+	if(g<0)g=0;
+	if(b<0)b=0;
+	if(a<0)a=0;
+	glColor4ub(r,g,b,a);
+}