}
}
+static void reset_to_zero(calculator_number_t *number) {
+ number->negative = false;
+ number->hundredths = 0;
+ number->tenths = 0;
+ number->ones = 0;
+ number->tens = 0;
+ number->hundreds = 0;
+ number->thousands = 0;
+}
+
void simple_calculator_face_activate(movement_settings_t *settings, void *context) {
(void) settings;
simple_calculator_state_t *state = (simple_calculator_state_t *)context;
state->placeholder = PLACEHOLDER_ONES;
state->mode = MODE_ENTERING_FIRST_NUM;
+ reset_to_zero(&state->second_num);
+ reset_to_zero(&state->result);
movement_request_tick_frequency(4);
}
// Round to nearest hundredth
result = roundf(result * 100) / 100;
+
+ // Handle negative numbers
+ if (number.negative) result = -result;
+ //printf("convert_to_float results = %f\n", result); // For debugging
+
return result;
}
static char* update_display_number(calculator_number_t *number, char *display_string, uint8_t which_num) {
char sign = ' ';
if (number->negative) sign = '-';
+
sprintf(display_string, "CA%d%c%d%d%d%d%d%d",
which_num,
sign,
static void cycle_operation(simple_calculator_state_t *state) {
state->operation = (state->operation + 1) % OPERATIONS_COUNT; // Assuming there are 6 operations
- //printf("Current operation: %d\n", state->operation); // For debugging
}
calculator_number_t result;
// Handle negative numbers
- bool is_negative = (number < 0);
- if (is_negative) {
+ if (number < 0) {
number = -number;
result.negative = true;
- }
+ } else result.negative = false;
+ // Get each digit from each placeholder
int int_part = (int)number;
+
float decimal_part_float = ((number - int_part) * 100); // two decimal places
//printf("decimal_part_float = %f\n", decimal_part_float); //For debugging
+
int decimal_part = round(decimal_part_float);
//printf("decimal_part = %d\n", decimal_part); //For debugging
return result;
}
-static void reset_to_zero(calculator_number_t *number) {
- number->negative = false;
- number->hundredths = 0;
- number->tenths = 0;
- number->ones = 0;
- number->tens = 0;
- number->hundreds = 0;
- number->thousands = 0;
-}
-
+// This is the main function for setting the first_num and second_num
+// WISH: there must be a way to pass less to this function?
static void set_number(calculator_number_t *number, calculator_placeholder_t placeholder, char *display_string, char *temp_display_string, movement_event_t event, uint8_t which_num) {
+
+ // Create the display index
uint8_t display_index;
- // Update display string with current number
+
+ // Update display string with current number and copy into temp string
update_display_number(number, display_string, which_num);
-
- // Copy the updated display string to a temporary buffer
strcpy(temp_display_string, display_string);
// Determine the display index based on the placeholder
}
static void view_results(simple_calculator_state_t *state, char *display_string) {
- float first_num_float, second_num_float, result_float = 0.0f; // For arithmetic operations
- // Convert the numbers to float
+
+ // Initialize float variables to do the math
+ float first_num_float, second_num_float, result_float = 0.0f;
+
+ // Convert the passed numbers to floats
first_num_float = convert_to_float(state->first_num);
- if (state->first_num.negative) first_num_float = first_num_float * -1;
- //printf("first_num_float = %f\n", first_num_float); // For debugging // For debugging
second_num_float = convert_to_float(state->second_num);
- if (state->second_num.negative) second_num_float = second_num_float * -1;
- //printf("second_num_float = %f\n", second_num_float); // For debugging
// Perform the calculation based on the selected operation
switch (state->operation) {
}
break;
case OP_POWER:
- result_float = powf(first_num_float, second_num_float); // Power operation
+ result_float = powf(first_num_float, second_num_float);
break;
default:
result_float = 0.0f;
break;
}
+ // Be sure the result can fit on the watch display, else error
if (result_float > 9999.99 || result_float < -9999.99) {
state->mode = MODE_ERROR;
return;
}
result_float = roundf(result_float * 100.0f) / 100.0f; // Might not be needed
+
//printf("result as float = %f\n", result_float); // For debugging
// Convert the float result to a string
+ // This isn't strictly necessary, but allows easily reusing the result as
+ // the next calculation's first_num
state->result = convert_to_string(result_float);
// Update the display with the result
update_display_number(&state->result, display_string, 3);
+
+ //printf("display_string = %s\n", display_string); // For debugging
+
watch_display_string(display_string, 0);
}
+// Used both when returning from errors and when long pressing MODE
static void reset_all(simple_calculator_state_t *state) {
reset_to_zero(&state->first_num);
reset_to_zero(&state->second_num);
state->operation = OP_ADD;
state->placeholder = PLACEHOLDER_ONES;
}
+
bool simple_calculator_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
simple_calculator_state_t *state = (simple_calculator_state_t *)context;
char display_string[10];
case EVENT_TICK:
switch (state->mode) {
case MODE_ENTERING_FIRST_NUM:
+ // See the WISH for this function above
set_number(&state->first_num,
state->placeholder,
display_string,
// If doing a square root calculation, skip to results
if (state->operation == OP_ROOT) {
state->mode = MODE_VIEW_RESULTS;
- // otherwise, set the second number
} else {
+ // See the WISH for this function above
set_number(&state->second_num,
state->placeholder,
display_string,
case MODE_VIEW_RESULTS:
view_results(state, display_string);
break;
+
case MODE_ERROR:
watch_display_string("CA Error ", 0);
break;
// Increment the digit in the current placeholder
increment_placeholder(&state->first_num, state->placeholder);
update_display_number(&state->first_num, display_string, 1);
+
+ //printf("display_string = %s\n", display_string); // For debugging
+
break;
case MODE_CHOOSING:
// Confirm and select the current operation
- //printf("Selected operation: %d\n", state->operation); // For debugging
state->mode = MODE_ENTERING_SECOND_NUM;
break;
case MODE_ENTERING_SECOND_NUM:
// Increment the digit in the current placeholder
increment_placeholder(&state->second_num, state->placeholder);
update_display_number(&state->second_num, display_string, 2);
+
+ //printf("display_string = %s\n", display_string); // For debugging
+
break;
case MODE_ERROR:
reset_all(state);
state->first_num.thousands == 0) {
movement_move_to_next_face();
} else {
+ // Reset the placeholder and proceed to the next MODE
state->placeholder = PLACEHOLDER_ONES;
state->mode = (state->mode + 1) % 4;
+ // When looping back to MODE_ENTERING_FIRST_NUM, reuse the
+ // previous calculation's results as the next calculation's
+ // first_num; also reset other numbers
if (state->mode == MODE_ENTERING_FIRST_NUM) {
state->first_num = state->result;
reset_to_zero(&state->second_num);
+ reset_to_zero(&state->result);
}
- //printf("Current mode: %d\n", state->mode); // For debugging
}
break;
case EVENT_MODE_LONG_PRESS:
+ // Move to next face if first number is 0
if (state->first_num.hundredths == 0 &&
state->first_num.tenths == 0 &&
state->first_num.ones== 0 &&
state->first_num.tens == 0 &&
state->first_num.hundreds == 0 &&
- state->first_num.thousands == 0 &&
- state->second_num.hundredths == 0 &&
- state->second_num.tenths == 0 &&
- state->second_num.ones== 0 &&
- state->second_num.tens == 0 &&
- state->second_num.hundreds == 0 &&
- state->second_num.thousands == 0) {
+ state->first_num.thousands == 0) {
movement_move_to_face(0);
+ // otherwise, start over
} else {
reset_all(state);
}
projects / sensor-watch.git / commitdiff