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Dependencies:   mbed

Fork of el17ajf by Angus Findlay

Input/Input.cpp@16:3f84f2d7b910, 2019-03-26 (annotated)

Committer:
el17ajf
Date:
Tue Mar 26 10:18:17 2019 +0000
Revision:
16:3f84f2d7b910
Parent:
15:afeefa3ceb61
Child:
22:0a474f074553
lab updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el17ajf 5:3efbdcb3efaf 1 #include "Input.h"
el17ajf 13:59e17cab320a 2 #include "Gamepad.h"
el17ajf 12:beb0d7632531 3 #include "mbed.h" // TODO DELETE
el17ajf 12:beb0d7632531 4
el17ajf 13:59e17cab320a 5 namespace Input {
el17ajf 13:59e17cab320a 6
el17ajf 13:59e17cab320a 7 enum State {RELEASED, RELEASED_FRAME, HIT_FRAME, HELD};
el17ajf 13:59e17cab320a 8 Gamepad * gamepad;
el17ajf 13:59e17cab320a 9 const int NUMBER_OF_BUTTONS = 4;
el17ajf 13:59e17cab320a 10 State states[4]; // NUM_OF_BS
el17ajf 15:afeefa3ceb61 11 int frame_hit[4] = {-99}; // NUM_OF_BS
el17ajf 15:afeefa3ceb61 12 int frame = 0;
el17ajf 16:3f84f2d7b910 13 const int bounce_frames = 0;
el17ajf 15:afeefa3ceb61 14 void updateButtonState(Button button, Gamepad::GamepadEvent event);
el17ajf 15:afeefa3ceb61 15 bool canBounce(Button button);
el17ajf 13:59e17cab320a 16
el17ajf 13:59e17cab320a 17 void init() {
el17ajf 13:59e17cab320a 18 gamepad = new Gamepad();
el17ajf 13:59e17cab320a 19 gamepad->init();
el17ajf 13:59e17cab320a 20
el17ajf 13:59e17cab320a 21 for (int i = 0; i < NUMBER_OF_BUTTONS; i++) {
el17ajf 13:59e17cab320a 22 states[i] = RELEASED;
el17ajf 9:3a7776a29a11 23 }
el17ajf 9:3a7776a29a11 24 }
el17ajf 5:3efbdcb3efaf 25
el17ajf 13:59e17cab320a 26 void deinit() {
el17ajf 13:59e17cab320a 27 delete gamepad;
el17ajf 13:59e17cab320a 28 }
el17ajf 13:59e17cab320a 29
el17ajf 13:59e17cab320a 30 void update() {
el17ajf 15:afeefa3ceb61 31 frame++;
el17ajf 15:afeefa3ceb61 32
el17ajf 15:afeefa3ceb61 33 // update based on existing states
el17ajf 13:59e17cab320a 34 for (int i = 0; i < NUMBER_OF_BUTTONS; i++) {
el17ajf 13:59e17cab320a 35 if (states[i] == RELEASED_FRAME) {
el17ajf 13:59e17cab320a 36 states[i] = RELEASED;
el17ajf 13:59e17cab320a 37 }
el17ajf 13:59e17cab320a 38 if (states[i] == HIT_FRAME) {
el17ajf 15:afeefa3ceb61 39 states[i] = RELEASED_FRAME;
el17ajf 13:59e17cab320a 40 }
el17ajf 13:59e17cab320a 41 }
el17ajf 13:59e17cab320a 42
el17ajf 15:afeefa3ceb61 43 // update state to reflect events
el17ajf 15:afeefa3ceb61 44 updateButtonState(LEFT, Gamepad::A_PRESSED);
el17ajf 15:afeefa3ceb61 45 updateButtonState(RIGHT, Gamepad::Y_PRESSED);
el17ajf 15:afeefa3ceb61 46 updateButtonState(UP, Gamepad::X_PRESSED);
el17ajf 15:afeefa3ceb61 47 updateButtonState(DOWN, Gamepad::B_PRESSED);
el17ajf 13:59e17cab320a 48 }
el17ajf 13:59e17cab320a 49
el17ajf 13:59e17cab320a 50 bool buttonHit(Button button) {
el17ajf 13:59e17cab320a 51 return states[button] == HIT_FRAME;
el17ajf 13:59e17cab320a 52 }
el17ajf 13:59e17cab320a 53
el17ajf 13:59e17cab320a 54 bool buttonHeld(Button button) {
el17ajf 13:59e17cab320a 55 return states[button] == HIT_FRAME
el17ajf 13:59e17cab320a 56 || states[button] == HELD;
el17ajf 12:beb0d7632531 57 }
el17ajf 15:afeefa3ceb61 58
el17ajf 15:afeefa3ceb61 59 void updateButtonState(Button button, Gamepad::GamepadEvent event) {
el17ajf 15:afeefa3ceb61 60 if (gamepad->check_event(event)) {
el17ajf 15:afeefa3ceb61 61 if (canBounce(button)) {
el17ajf 15:afeefa3ceb61 62 states[button] = HIT_FRAME;
el17ajf 15:afeefa3ceb61 63 frame_hit[button] = frame;
el17ajf 15:afeefa3ceb61 64 } else {
el17ajf 15:afeefa3ceb61 65 states[button] = HELD;
el17ajf 15:afeefa3ceb61 66 }
el17ajf 15:afeefa3ceb61 67 }
el17ajf 15:afeefa3ceb61 68 }
el17ajf 15:afeefa3ceb61 69
el17ajf 15:afeefa3ceb61 70 bool canBounce(Button button) {
el17ajf 15:afeefa3ceb61 71 if (frame > frame_hit[button] + bounce_frames) {
el17ajf 15:afeefa3ceb61 72 return true;
el17ajf 15:afeefa3ceb61 73 } else {
el17ajf 15:afeefa3ceb61 74 return false;
el17ajf 15:afeefa3ceb61 75 }
el17ajf 15:afeefa3ceb61 76 }
el17ajf 9:3a7776a29a11 77 }