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728 lines
17 KiB
728 lines
17 KiB
// Do not remove the include below
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#include "ArduinoKeyboard.h"
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// Copyright 2013 Jesse Vincent <jesse@fsck.com>
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// All Rights Reserved. (To be licensed under an opensource license
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// before the release of the keyboard.io model 01
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/**
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* TODO:
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add mouse inertia
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add series-of-character macros
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add series of keystroke macros
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use a lower-level USB API
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*
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**/
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#include <stdio.h>
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#include <math.h>
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#include "KeyboardConfig.h"
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#include "keymaps_generated.h"
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#include <EEPROM.h> // Don't need this for CLI compilation, but do need it in the IDE
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//extern int usbMaxPower;
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#define DEBUG_SERIAL 0
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byte matrixState[ROWS][COLS];
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byte charsBeingReported[KEYS_HELD_BUFFER]; // A bit vector for the 256 keys we might conceivably be holding down
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byte charsReportedLastTime[KEYS_HELD_BUFFER]; // A bit vector for the 256 keys we might conceivably be holding down
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long reporting_counter = 0;
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byte primary_keymap = 0;
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byte active_keymap = 0;
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double mouseActiveForCycles = 0;
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float carriedOverX = 0;
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float carriedOverY = 0;
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void setup_matrix()
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{
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//blank out the matrix.
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for (byte col = 0; col < COLS; col++) {
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for (byte row = 0; row < ROWS; row++) {
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matrixState[row][col] = 0;
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}
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}
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}
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void reset_matrix()
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{
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for (byte col = 0; col < COLS; col++) {
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for (byte row = 0; row < ROWS; row++) {
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matrixState[row][col] <<= 1;
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}
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}
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}
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void set_keymap(Key keymapEntry, byte matrixStateEntry) {
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if (keymapEntry.flags & SWITCH_TO_KEYMAP) {
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// this logic sucks. there is a better way TODO this
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if (! (keymapEntry.flags ^ ( MOMENTARY | SWITCH_TO_KEYMAP))) {
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if (key_is_pressed(matrixStateEntry)) {
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if ( keymapEntry.rawKey == KEYMAP_NEXT) {
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active_keymap++;
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} else if ( keymapEntry.rawKey == KEYMAP_PREVIOUS) {
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active_keymap--;
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} else {
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active_keymap = keymapEntry.rawKey;
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}
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}
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} else if (! (keymapEntry.flags ^ ( SWITCH_TO_KEYMAP))) {
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// switch keymap and stay there
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if (key_toggled_on(matrixStateEntry)) {
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active_keymap = primary_keymap = keymapEntry.rawKey;
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save_primary_keymap(primary_keymap);
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#ifdef DEBUG_SERIAL
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Serial.print("keymap is now:");
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Serial.print(active_keymap);
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#endif
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}
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}
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}
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}
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void scan_matrix()
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{
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//scan the Keyboard matrix looking for connections
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for (byte row = 0; row < ROWS; row++) {
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digitalWrite(rowPins[row], LOW);
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for (byte col = 0; col < COLS; col++) {
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//If we see an electrical connection on I->J,
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if (digitalRead(colPins[col])) {
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matrixState[row][col] |= 0; // noop. just here for clarity
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} else {
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matrixState[row][col] |= 1; // noop. just here for clarity
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}
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// while we're inspecting the electrical matrix, we look
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// to see if the Key being held is a firmware level
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// metakey, so we can act on it, lest we only discover
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// that we should be looking at a seconary Keymap halfway
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// through the matrix scan
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set_keymap(keymaps[active_keymap][row][col], matrixState[row][col]);
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}
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digitalWrite(rowPins[row], HIGH);
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}
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}
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void setup()
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{
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//usbMaxPower = 100;
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delay(2500);
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Keyboard.begin();
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Mouse.begin();
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setup_matrix();
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setup_pins();
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Serial.begin(9600);
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primary_keymap = load_primary_keymap();
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}
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String myApp;
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void loop()
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{
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if(Serial.available()) {
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myApp = Serial.readString();
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myApp.trim();
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}
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active_keymap = primary_keymap;
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scan_matrix();
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send_key_events();
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reset_matrix();
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reset_key_report();
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}
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// switch debouncing and status
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//
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//
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boolean key_was_pressed (byte keyState)
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{
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if ( byte((keyState >> 4)) ^ B00001111 ) {
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return false;
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} else {
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return true;
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}
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}
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boolean key_was_not_pressed (byte keyState)
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{
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if ( byte((keyState >> 4)) ^ B00000000 ) {
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return false;
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} else {
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return true;
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}
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}
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boolean key_is_pressed (byte keyState)
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{
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if ( byte((keyState << 4)) ^ B11110000 ) {
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return false;
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} else {
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return true;
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}
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}
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boolean key_is_not_pressed (byte keyState)
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{
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if ( byte((keyState << 4)) ^ B00000000 ) {
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return false;
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} else {
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return true;
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}
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}
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boolean key_toggled_on(byte keyState)
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{
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if (key_is_pressed(keyState) && key_was_not_pressed(keyState)) {
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return true;
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} else {
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return false;
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}
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}
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boolean key_toggled_off(byte keyState)
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{
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if (key_was_pressed(keyState) && key_is_not_pressed(keyState)) {
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return true;
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} else {
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return false;
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}
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}
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void save_primary_keymap(byte keymap)
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{
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EEPROM.write(EEPROM_KEYMAP_LOCATION, keymap);
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}
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byte load_primary_keymap()
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{
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byte keymap = EEPROM.read(EEPROM_KEYMAP_LOCATION);
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if (keymap >= KEYMAPS ) {
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return 0; // undefined positions get saved as 255
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}
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return keymap;
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}
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// Debugging Reporting
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//
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void report_matrix()
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{
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#ifdef DEBUG_SERIAL
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if (reporting_counter++ % 100 == 0 ) {
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for (byte row = 0; row < ROWS; row++) {
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for (byte col = 0; col < COLS; col++) {
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Serial.print(matrixState[row][col], HEX);
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Serial.print(", ");
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}
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Serial.println("");
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}
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Serial.println("");
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}
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#endif
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}
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void report(byte row, byte col, boolean value)
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{
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#ifdef DEBUG_SERIAL
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Serial.print("Detected a change on ");
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Serial.print(col);
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Serial.print(" ");
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Serial.print(row);
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Serial.print(" to ");
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Serial.print(value);
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Serial.println(".");
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#endif
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}
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// Mouse-related methods
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//
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//
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void _draw_warp_section(long x_origin, long y_origin, long x_end, long y_end, int tracing_scale) {
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if ( x_origin != x_end ) { // it's a horizontal line
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if (x_origin > x_end) { // right to left
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// tracing_scale = (x_origin-x_end) /100;
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for (long x = x_origin ; x>= x_end; x=x-tracing_scale) {
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Mouse.moveAbsolute(x,y_origin);
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}
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} else { // left to right
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// tracing_scale = (x_end-x_origin) /100;
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for (long x = x_origin ; x<= x_end; x=x+tracing_scale) {
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Mouse.moveAbsolute(x,y_origin);
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}
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}
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} else { // it's a vertical line
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if (y_origin > y_end) { // bottom to top
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// tracing_scale = (y_origin-y_end) /100;
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for (long y = y_origin ; y>= y_end; y=y-tracing_scale) {
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Mouse.moveAbsolute(x_origin,y);
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}
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} else { // top to bottom
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// tracing_scale = (y_end-y_origin) /100;
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for (long y = y_origin ; y<= y_end; y=y+tracing_scale) {
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Mouse.moveAbsolute(x_origin, y);
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}
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}
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}
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}
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#define CLOVER_TRACE_SCALE 50
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void _warp_clover(long left, long top, long height, long width) {
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long x_center = left + width/2;
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long y_center = top + height/2;
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long right = left + width;
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long bottom = top + height;
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_draw_warp_section(x_center, y_center, left, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section(left, y_center, left,top, CLOVER_TRACE_SCALE);
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_draw_warp_section(left, top , x_center,top, CLOVER_TRACE_SCALE);
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_draw_warp_section( x_center,top, x_center, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section(x_center, y_center, x_center, bottom, CLOVER_TRACE_SCALE);
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_draw_warp_section( x_center, bottom, right, bottom, CLOVER_TRACE_SCALE);
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_draw_warp_section( right, bottom, right, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section( right, y_center, x_center, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section( x_center, y_center, left, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section( left,y_center,left, bottom, CLOVER_TRACE_SCALE);
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_draw_warp_section(left, bottom, x_center, bottom, CLOVER_TRACE_SCALE);
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_draw_warp_section( x_center, bottom, x_center, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section( x_center, y_center, x_center,top, CLOVER_TRACE_SCALE);
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_draw_warp_section( x_center,top, right, top, CLOVER_TRACE_SCALE);
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_draw_warp_section( right, top, right, y_center, CLOVER_TRACE_SCALE);
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_draw_warp_section( right, y_center, x_center, y_center, CLOVER_TRACE_SCALE);
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}
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void _warp_cross(long left, long top, long height, long width) {
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long x_center = left + width/2;
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long y_center = top + height/2;
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long right = left + width;
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long bottom = top + height;
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_draw_warp_section(x_center, y_center, x_center, top,40);
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_draw_warp_section(x_center, top, x_center, bottom,40);
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_draw_warp_section( x_center, bottom, x_center, y_center,40);
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_draw_warp_section( x_center, y_center,left,y_center,40);
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_draw_warp_section(left, y_center, right, y_center,40);
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_draw_warp_section(right, y_center, x_center, y_center,40);
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}
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void _warp_jump(long left, long top, long height, long width) {
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long x_center = left + width/2;
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long y_center = top + height/2;
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Mouse.moveAbsolute(x_center,y_center);
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}
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int last_x;
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int last_y;
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// apparently, the mac discards 15% of the value space for mouse movement.
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// need to test this on other platforms
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//
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#define HALF_WIDTH 16384
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#define HALF_HEIGHT 16384
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int abs_left = 0;
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int abs_top = 0;
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int next_width;
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int next_height;
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int section_top;
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int section_left;
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boolean is_warping = false;
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void begin_warping() {
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section_left = abs_left;
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section_top = abs_top;
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next_width = 32767;
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next_height = 32767;
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is_warping = true;
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}
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void end_warping() {
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is_warping= false;
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}
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void warp_mouse(Key ninth) {
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if (is_warping == false) {
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begin_warping();
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}
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if ( ninth.rawKey & MOUSE_END_WARP) {
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end_warping();
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return;
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}
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next_width = next_width / 2;
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next_height = next_height/2;
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#ifdef DEBUG_SERIAL
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Serial.print("Current box: ");
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Serial.print(section_left);
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Serial.print(",");
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Serial.print(section_top);
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Serial.print(" to: ");
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Serial.print(section_left+next_width);
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Serial.print(",");
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Serial.print(section_top+next_height);
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Serial.print("\nwarping - the next box size is ");
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Serial.print(next_width);
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Serial.print(", ");
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Serial.print(next_height);
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Serial.print("\n");
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#endif
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if (ninth.rawKey & MOUSE_UP) {
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// Serial.print(" - up ");
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} else if (ninth.rawKey & MOUSE_DN) {
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// Serial.print(" - down ");
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section_top = section_top + next_height;
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}
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if (ninth.rawKey & MOUSE_L) {
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// Serial.print(" - left ");
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} else if (ninth.rawKey & MOUSE_R) {
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// Serial.print(" - right ");
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section_left = section_left + next_width;
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}
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#ifdef DEBUG_SERIAL
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Serial.print("\nShould end up at ");
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Serial.print(section_left + next_width/ 2);
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Serial.print(",");
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Serial.print(section_top + next_height / 2);
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Serial.print("That should be half way between ");
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Serial.print(section_left);
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Serial.print(",");
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Serial.print(section_top);
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Serial.print(" and ");
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Serial.print(section_left + next_width);
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Serial.print(",");
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Serial.print(section_top+next_height);
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Serial.print("\n");
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#endif
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// the cloverleaf
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// _warp_cross(section_left, section_top, next_height,next_width);
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_warp_jump(section_left, section_top, next_height,next_width);
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}
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// we want the whole s curve, not just the bit
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// that's usually above the x and y axes;
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#define ATAN_LIMIT 1.57079633
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#define ACCELERATION_FLOOR 0.25
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#define ACCELERATION_MULTIPLIER 5
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#define ACCELERATION_RUNWAY 5
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// Climb speed is how fast we get to max speed
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// 1 is "instant"
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// 0.05 is just right
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// 0.001 is insanely slow
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#define ACCELERATION_CLIMB_SPEED 0.05
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double mouse_accel (double cycles)
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{
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double accel = (atan((cycles * ACCELERATION_CLIMB_SPEED)-ACCELERATION_RUNWAY) + ATAN_LIMIT) * ACCELERATION_MULTIPLIER;
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if (accel < ACCELERATION_FLOOR) {
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accel = ACCELERATION_FLOOR;
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}
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return accel;
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}
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void handle_mouse_movement( char x, char y)
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{
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if (x != 0 || y != 0) {
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mouseActiveForCycles++;
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double accel = (double) mouse_accel(mouseActiveForCycles);
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float moveX = 0;
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float moveY = 0;
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if (x > 0) {
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moveX = (x * accel) + carriedOverX;
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carriedOverX = moveX - floor(moveX);
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} else if (x < 0) {
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moveX = (x * accel) - carriedOverX;
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carriedOverX = ceil(moveX) - moveX;
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}
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if (y > 0) {
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moveY = (y * accel) + carriedOverY;
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carriedOverY = moveY - floor(moveY);
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} else if (y < 0) {
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moveY = (y * accel) - carriedOverY;
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carriedOverY = ceil(moveY) - moveY;
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}
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#ifdef DEBUG_SERIAL
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Serial.println();
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Serial.print("cycles: ");
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Serial.println(mouseActiveForCycles);
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Serial.print("Accel: ");
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Serial.print(accel);
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Serial.print(" moveX is ");
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Serial.print(moveX);
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Serial.print(" moveY is ");
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Serial.print(moveY);
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Serial.print(" carriedoverx is ");
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Serial.print(carriedOverX);
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Serial.print(" carriedOverY is ");
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Serial.println(carriedOverY);
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#endif
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end_warping();
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Mouse.move(moveX, moveY, 0);
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} else {
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mouseActiveForCycles = 0;
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}
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}
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//
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// Key Reports
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//
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void release_keys_not_being_pressed()
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{
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// we use charsReportedLastTime to figure out what we might
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// not be holding anymore and can now release. this is
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// destructive to charsReportedLastTime
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for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
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// for each key we were holding as of the end of the last cycle
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// see if we're still holding it
|
|
// if we're not, call an explicit Release
|
|
|
|
if (charsReportedLastTime[i] != 0x00) {
|
|
// if there _was_ a character in this slot, go check the
|
|
// currently held characters
|
|
for (byte j = 0; j < KEYS_HELD_BUFFER; j++) {
|
|
if (charsReportedLastTime[i] == charsBeingReported[j]) {
|
|
// if's still held, we don't need to do anything.
|
|
charsReportedLastTime[i] = 0x00;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
|
|
if (charsReportedLastTime[i] != 0x00) {
|
|
Keyboard.release(charsReportedLastTime[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void record_key_being_pressed(byte character)
|
|
{
|
|
for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
|
|
// todo - deal with overflowing the 12 key buffer here
|
|
if (charsBeingReported[i] == 0x00) {
|
|
charsBeingReported[i] = character;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void reset_key_report()
|
|
{
|
|
for (byte i = 0; i < KEYS_HELD_BUFFER; i++) {
|
|
charsReportedLastTime[i] = charsBeingReported[i];
|
|
charsBeingReported[i] = 0x00;
|
|
}
|
|
}
|
|
|
|
|
|
// Sending events to the usb host
|
|
|
|
void handle_synthetic_key_press(byte switchState, Key mappedKey) {
|
|
if (mappedKey.flags & IS_CONSUMER) {
|
|
if (key_toggled_on (switchState)) {
|
|
Keyboard.consumerControl(mappedKey.rawKey);
|
|
}
|
|
}
|
|
else if (mappedKey.flags & IS_SYSCTL) {
|
|
if (key_toggled_on (switchState)) {
|
|
Keyboard.systemControl(mappedKey.rawKey);
|
|
}
|
|
}
|
|
else if (mappedKey.flags & IS_MACRO) {
|
|
if (key_toggled_on (switchState)) {
|
|
if (mappedKey.rawKey == 1) {
|
|
Serial.print("Keyboard.IO keyboard driver v0.00");
|
|
}
|
|
}
|
|
} else if (mappedKey.rawKey == KEY_MOUSE_BTN_L
|
|
|| mappedKey.rawKey == KEY_MOUSE_BTN_M
|
|
|| mappedKey.rawKey == KEY_MOUSE_BTN_R) {
|
|
if (key_toggled_on (switchState)) {
|
|
Mouse.press(mappedKey.rawKey);
|
|
end_warping();
|
|
} else if (key_is_pressed(switchState)) {
|
|
} else if (Mouse.isPressed(mappedKey.rawKey) ) {
|
|
Mouse.release(mappedKey.rawKey);
|
|
}
|
|
}
|
|
}
|
|
void handle_mouse_key_press(byte switchState, Key mappedKey, char &x, char &y) {
|
|
|
|
if (key_is_pressed(switchState)) {
|
|
if (mappedKey.rawKey & MOUSE_UP) {
|
|
y -= 1;
|
|
}
|
|
if (mappedKey.rawKey & MOUSE_DN) {
|
|
y += 1;
|
|
}
|
|
if (mappedKey.rawKey & MOUSE_L) {
|
|
x -= 1;
|
|
}
|
|
|
|
if (mappedKey.rawKey & MOUSE_R) {
|
|
x += 1 ;
|
|
}
|
|
}
|
|
}
|
|
|
|
void send_key_events()
|
|
{
|
|
//for every newly pressed button, figure out what logical key it is and send a key down event
|
|
// for every newly released button, figure out what logical key it is and send a key up event
|
|
|
|
|
|
// TODO:switch to sending raw HID packets
|
|
|
|
// really, these are signed small ints
|
|
char x = 0;
|
|
char y = 0;
|
|
|
|
for (byte row = 0; row < ROWS; row++) {
|
|
|
|
for (byte col = 0; col < COLS; col++) {
|
|
byte switchState = matrixState[row][col];
|
|
Key mappedKey = keymaps[active_keymap][row][col];
|
|
|
|
if (mappedKey.flags & MOUSE_KEY ) {
|
|
if (mappedKey.rawKey & MOUSE_WARP) {
|
|
if (key_toggled_on(switchState)) {
|
|
warp_mouse(mappedKey);
|
|
}
|
|
} else {
|
|
handle_mouse_key_press(switchState, mappedKey, x, y);
|
|
}
|
|
|
|
} else if (mappedKey.flags & SYNTHETIC_KEY) {
|
|
handle_synthetic_key_press(switchState, mappedKey);
|
|
}
|
|
else {
|
|
if (String("Slack") == myApp) {
|
|
if (key_is_pressed(switchState)) {
|
|
record_key_being_pressed(mappedKey.rawKey);
|
|
if (key_toggled_on (switchState)) {
|
|
Keyboard.print("Never gonna give you up!");
|
|
}
|
|
}
|
|
} else {
|
|
if (key_is_pressed(switchState)) {
|
|
record_key_being_pressed(mappedKey.rawKey);
|
|
if (key_toggled_on (switchState)) {
|
|
Keyboard.press(mappedKey.rawKey);
|
|
}
|
|
} else if (key_toggled_off (switchState)) {
|
|
Keyboard.release(mappedKey.rawKey);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
handle_mouse_movement(x, y);
|
|
release_keys_not_being_pressed();
|
|
}
|
|
|
|
|
|
// Hardware initialization
|
|
void setup_pins()
|
|
{
|
|
//set up the row pins as outputs
|
|
for (byte row = 0; row < ROWS; row++) {
|
|
pinMode(rowPins[row], OUTPUT);
|
|
digitalWrite(rowPins[row], HIGH);
|
|
}
|
|
|
|
for (byte col = 0; col < COLS; col++) {
|
|
pinMode(colPins[col], INPUT);
|
|
digitalWrite(colPins[col], HIGH);
|
|
//drive em high by default s it seems to be more reliable than driving em low
|
|
|
|
}
|
|
}
|
|
|