the whole game

src/client/renderer/Color4.h

@@ -0,0 +1,53 @@
+#ifndef NET_MINECRAFT_CLIENT_RENDERER__Color4_H__
+#define NET_MINECRAFT_CLIENT_RENDERER__Color4_H__
+
+class Color4
+{
+public:
+	GLfloat r;
+	GLfloat g;
+	GLfloat b;
+	GLfloat a;
+
+	Color4(GLfloat r_, GLfloat g_, GLfloat b_, GLfloat a_ = 0)
+	:	r(r_),
+		g(g_),
+		b(b_),
+		a(a_)
+	{}
+
+	Color4(int hex) {
+		r = ((hex>>16)& 255) / 255.0f;
+		g = ((hex>>8) & 255) / 255.0f;
+		b = (hex&255) / 255.0f;
+		a = (hex >> 24) / 255.0f;
+	}
+
+	void add(GLfloat val, bool modifyAlpha) {
+		r += val;
+		g += val;
+		b += val;
+		if (modifyAlpha) a += val;
+		sanitize();
+	}
+	void mul(GLfloat val, bool modifyAlpha) {
+		r *= val;
+		g *= val;
+		b *= val;
+		if (modifyAlpha) a *= val;
+		sanitize();
+	}
+private:
+	void sanitize() {
+		range(r);
+		range(g);
+		range(b);
+		range(a);
+	}
+	__inline void range(GLfloat& v) {
+		if (v < 0) v = 0;
+		if (v > 1) v = 1;
+	}
+};
+
+#endif /*NET_MINECRAFT_CLIENT_RENDERER__Color4_H__*/