Version of dimmer that can take a custom value mapper

Author: talbotmcinnis

examples/OneOfEverything/OneOfEverything.ino

@@ -20,6 +20,11 @@ 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);
 

src/internal/Dimmer.h

@@ -13,19 +13,31 @@ namespace DcsBios {
 			const char* msg_;
 			int minOutput_;
 			int maxOutput_;
+			unsigned int (*map_function_)(unsigned int newValue);
+
 		public:
 			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_, 
-					map(getData(), 0, 65535, minOutput_, maxOutput_));
-				} 
+					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;