1 files changed, 130 insertions, 0 deletions
diff --git a/MassCalc/src/main.c b/MassCalc/src/main.c
new file mode 100644
index 0000000..dd4f952
--- /dev/null
+++ b/MassCalc/src/main.c
@@ -0,0 +1,130 @@
+#include <tice.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define EnterKey 5
+#define maxline 22
+
+double lbsToG(double lbs);
+double gToLbs(double gram);
+double ozToG(double oz);
+double gToOz(double gram);
+double ozToLbs(double oz);
+double lbsToOz(double lbs);
+double getInput(void);
+void output(int operation);
+
+int main(void)
+{
+	while(true) {
+		os_ClrHome();
+
+		printf("MassCalc\nSelect:\n1. Pounds to Grams\n2. Grams to Pounds\n3. Ounces to Grams\n4. Grams to Ounces\n5. Pounds to Ounces\n6. Ounces to Pounds\n7. Exit");
+		uint16_t key = os_GetKey();
+
+		if(key == 149)
+			break;
+
+		output(key);
+		/* Waits for a key press */
+		while (!os_GetCSC());
+	}
+	return 0;
+}
+
+void output(int operation)
+{
+	os_ClrHome();
+	double value = 0.0;
+	switch(operation) {
+		case 143:
+			printf("Pounds to Grams\n");
+			value = lbsToG(getInput());
+			break;
+		case 144:
+			printf("Grams to Pounds\n");
+			value = gToLbs(getInput());
+			break;
+		case 145:
+			printf("Ounces to Grams\n");
+			value = ozToG(getInput());
+			break;
+		case 146:
+			printf("Grams to Ounces\n");
+			value = gToOz(getInput());
+			break;
+		case 147:
+			printf("Pounds to Ounces\n");
+			value = lbsToOz(getInput());
+			break;
+		case 148:
+			printf("Ounces to Pounds\n");
+			value = ozToLbs(getInput());
+			break;
+		default: printf("Invalid");
+	}
+	printf("\nOutput: %f", value);
+}
+
+double getInput(void)
+{
+	uint8_t key, i = 0;
+	char number[maxline];
+	char *eptr;
+	double value = 0.0;
+
+	printf("Input: ");
+	while((key = os_GetKey()) != EnterKey) {
+		if(key == 141 || key == 140)
+			key--;
+		number[i] = (key - 142) + '0';
+		printf("%c", number[i++]);
+	}
+	number[i] = '\0';
+	value = strtod(number, &eptr);
+	return value;
+}
+
+double lbsToG(double lbs)
+{
+	double gram = 0;
+	gram = lbs * 453.59237;
+	return gram;
+}
+
+double gToLbs(double gram)
+{
+	double lbs = 0;
+	lbs = gram / 453.59237;
+	return lbs;
+}
+
+double ozToG(double oz)
+{
+	double gram = 0;
+	gram = lbsToG(ozToLbs(oz));
+	return gram;
+}
+
+double gToOz(double gram)
+{
+	double oz = 0;
+	oz = lbsToOz(gToLbs(gram));
+	return oz;
+}
+
+double lbsToOz(double lbs)
+{
+	double oz = 0;
+	oz = lbs * 16;
+	return oz;
+}
+
+double ozToLbs(double oz)
+{
+	double lbs = 0;
+	lbs = oz / 16;
+	return lbs;
+}
+