many changes

data/Color.h

@@ -0,0 +1,99 @@
+struct Color {
+
+	uint8_t r;
+	uint8_t g;
+	uint8_t b;
+
+	/** no-init */
+	Color() {
+		;
+	}
+
+private:
+
+	/** Hidden ctor. RGB */
+	Color(const uint8_t r, const uint8_t g, const uint8_t b) : r(r), g(g), b(b) {
+		;
+	}
+
+public:
+
+	/** get X-percent [0:100] of this color = darker/brighter */
+	Color inline getPercent(const int percent) const {
+		return Color(r*percent/100, g*percent/100, b*percent/100);
+	}
+
+	/** mix the two given colors */
+	static Color mix(const Color c1, const Color c2, int percentC1) {
+		return Color(
+			((c1.r * percentC1) + (c2.r * (100-percentC1))) / 100,
+			((c1.g * percentC1) + (c2.g * (100-percentC1))) / 100,
+			((c1.b * percentC1) + (c2.b * (100-percentC1))) / 100
+		);
+	}
+
+	static inline Color fromRGB(const uint8_t r, const uint8_t g, const uint8_t b) {
+		return Color(r,g,b);
+	}
+
+	static inline Color fromHSV(const uint8_t h, const uint8_t s, const uint8_t v) {
+		Color c; c.setHSV(h,s,v); return c;
+	}
+
+	void setHSV(const uint8_t h, const uint8_t s, const uint8_t v) {
+
+		uint8_t region, remainder, p, q, t;
+
+		region = h / 43;
+		remainder = (h - (region * 43)) * 6;
+
+		p = (v * (255 - s)) >> 8;
+		q = (v * (255 - ((s * remainder) >> 8))) >> 8;
+		t = (v * (255 - ((s * (255 - remainder)) >> 8))) >> 8;
+
+		switch (region) {
+			case 0:
+				r = v; g = t; b = p;
+				break;
+			case 1:
+				r = q; g = v; b = p;
+				break;
+			case 2:
+				r = p; g = v; b = t;
+				break;
+			case 3:
+				r = p; g = q; b = v;
+				break;
+			case 4:
+				r = t; g = p; b = v;
+				break;
+			default:
+				r = v; g = p; b = q;
+				break;
+		}
+
+	}
+
+	void setRGB(const uint8_t r, const uint8_t g, const uint8_t b) {
+		this->r = r;
+		this->g = g;
+		this->b = b;
+	}
+
+	void setOff() {
+		this->r = 0;
+		this->g = 0;
+		this->b = 0;
+	}
+
+
+	/** add two colors */
+	Color operator + (const Color o) const {
+		return Color(r+o.r, g+o.g, b+o.g);
+	}
+
+	Color operator * (const float f) const {
+		return Color(r*f, g*f, b*f);
+	}
+
+};