Merge pull request #11 from talbotmcinnis/InvertableDimmer

Invertable dimmer

Author: talbotmcinnis

examples/OneOfEverything/OneOfEverything.ino

@@ -18,6 +18,14 @@ DcsBios::Switch3Pos switch3PosExample("MSG_0", 1, 2);
 const byte multiPosPins[4] = {1,2,3,4};
 DcsBios::SwitchMultiPos switchMulitPosExample("MSG_0", multiPosPins, 4);
 
+DcsBios::Dimmer defaultDimmerExample(0x1012, 5);
+DcsBios::Dimmer invertedDimmerExample(0x1012, 5, 200,0);
+unsigned int myValueMapper(unsigned int dcsValue)
+{
+  return dcsValue % 10;
+}
+DcsBios::Dimmer mappedDimmerExample(0x1012, 5, myValueMapper);
+
 DcsBios::LED masterCaution(0x1012, 0x0800, 13);
 
 void setup() {

src/internal/Dimmer.h

@@ -11,16 +11,33 @@ namespace DcsBios {
 			void onDcsBiosFrameSync();
 			char pin_;
 			const char* msg_;
+			int minOutput_;
+			int maxOutput_;
+			unsigned int (*map_function_)(unsigned int newValue);
+
 		public:
-			Dimmer(unsigned int address, char pin) : Int16Buffer(address){
+			Dimmer(unsigned int address, char pin, int minOutput=0, int maxOutput=255) : Int16Buffer(address){
+				pin_ = pin;
+				minOutput_ = minOutput;
+				maxOutput_ = maxOutput;
+				map_function_ = NULL;
+			}
+			Dimmer(unsigned int address, char pin, unsigned int (*map_function)(unsigned int newValue)) : Int16Buffer(address){
 				pin_ = pin;
+				map_function_ = map_function;
 			}
 			virtual void loop() {
 				if (hasUpdatedData()) {
-				analogWrite(pin_, getData()/255);
-				} 
+					analogWrite(pin_, mapValue(getData()));
+				}
+			}
+			unsigned int mapValue(unsigned int value) {
+				if (map_function_) {
+					return map_function_(value);
+				} else {
+					return map(value, 0, 65535, minOutput_, maxOutput_);
+				}
 			}
-			
 			void SetControl( const char* msg )
 			{
 				msg_ = msg;