Alexandra Posta / Mbed OS ELEC2645_Race_Collision

“Race Collision” is a one player game in which a truck has to avoid “particles” that appear on the road. By the use of the joystick, the player can guide themselves through the menu system to start the game. The truck is the main element of the game and it can be moved from side to side with the joystick. The road curves randomly from time to time and the player has to be careful to keep the truck within the road boundaries. Particles appear on the screen at random positions and 4 collisions lead to the end of the game.

Dependencies:   ELEC2645_JoystickLCD_LPC1768_2021

main.cpp@6:40ef2030334c, 2021-04-22 (annotated)

Committer:
alex_20
Date:
Thu Apr 22 10:52:37 2021 +0000
Revision:
6:40ef2030334c
Parent:
5:7930d289e7fc
Child:
7:559edc36f261
Car done (still needs improvement) ; Start Ball

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eencae 0:be41a15e7a86 1 /* mbed Microcontroller Library
eencae 0:be41a15e7a86 2 * Copyright (c) 2019 ARM Limited
eencae 0:be41a15e7a86 3 * SPDX-License-Identifier: Apache-2.0
eencae 0:be41a15e7a86 4 */
eencae 0:be41a15e7a86 5
eencae 0:be41a15e7a86 6 #include "mbed.h"
eencae 0:be41a15e7a86 7 #include "Joystick.h"
eencae 0:be41a15e7a86 8 #include "N5110.h"
alex_20 2:18fd28044860 9 #include "Road.h"
alex_20 6:40ef2030334c 10 #include "Car.h"
alex_20 4:def20a1665d1 11 #include "Utils.h"
alex_20 4:def20a1665d1 12 #include "Vector.h"
eencae 0:be41a15e7a86 13
alex_20 1:2ae7a8b01771 14 // objects
alex_20 1:2ae7a8b01771 15 // BusOut leds(LED4,LED3,LED2,LED1);
eencae 0:be41a15e7a86 16
alex_20 6:40ef2030334c 17 N5110 lcd(p14,p8,p9,p10,p11,p13,p21);
alex_20 6:40ef2030334c 18 DigitalIn button_A(p29);
alex_20 6:40ef2030334c 19 DigitalIn button_C(p27);
eencae 0:be41a15e7a86 20
alex_20 6:40ef2030334c 21 // y x
alex_20 6:40ef2030334c 22 Joystick joystick(p20,p19);
alex_20 1:2ae7a8b01771 23
alex_20 2:18fd28044860 24 // B G R
alex_20 1:2ae7a8b01771 25 //BusOut leds(p22,p23,p24);
alex_20 1:2ae7a8b01771 26 // LSB MSB
alex_20 1:2ae7a8b01771 27
alex_20 2:18fd28044860 28 Road road;
alex_20 4:def20a1665d1 29 Utils utils;
alex_20 6:40ef2030334c 30 Car car;
alex_20 2:18fd28044860 31
alex_20 4:def20a1665d1 32 #define speed 0.01
alex_20 5:7930d289e7fc 33 #define road_speed 0.008
alex_20 6:40ef2030334c 34 #define car_speed 0.2
alex_20 6:40ef2030334c 35
alex_20 1:2ae7a8b01771 36 // functions
alex_20 1:2ae7a8b01771 37 void init_buttons();
eencae 0:be41a15e7a86 38
eencae 0:be41a15e7a86 39 int main()
eencae 0:be41a15e7a86 40 {
alex_20 2:18fd28044860 41 // initialisation
eencae 0:be41a15e7a86 42 lcd.init();
alex_20 2:18fd28044860 43 road.init();
alex_20 6:40ef2030334c 44 car.init();
alex_20 6:40ef2030334c 45 joystick.init();
eencae 0:be41a15e7a86 46 lcd.setContrast(0.5);
alex_20 1:2ae7a8b01771 47
alex_20 6:40ef2030334c 48 float i = 0;
alex_20 6:40ef2030334c 49 float offset = 0;
alex_20 6:40ef2030334c 50 float start_pos = 38.0;
alex_20 6:40ef2030334c 51 float y = 0.0;
alex_20 6:40ef2030334c 52
alex_20 1:2ae7a8b01771 53 while(1) {
alex_20 1:2ae7a8b01771 54 lcd.clear();
alex_20 5:7930d289e7fc 55 road.draw(lcd, utils, i, offset);
eencae 0:be41a15e7a86 56
alex_20 2:18fd28044860 57 if (button_A.read() == 1) {
alex_20 4:def20a1665d1 58
alex_20 5:7930d289e7fc 59 road.draw_warn(lcd, 1);
alex_20 6:40ef2030334c 60 i += speed;
alex_20 1:2ae7a8b01771 61 }
alex_20 1:2ae7a8b01771 62
alex_20 3:cbe2dcca5058 63 if (button_C.read() == 1) {
alex_20 3:cbe2dcca5058 64 road.draw_warn(lcd, 2);
alex_20 6:40ef2030334c 65 i -= speed;
alex_20 1:2ae7a8b01771 66 }
alex_20 6:40ef2030334c 67 offset += road_speed;
alex_20 6:40ef2030334c 68
alex_20 6:40ef2030334c 69 Vector2D coord = joystick.get_mapped_coord();
alex_20 6:40ef2030334c 70 int direction = car.get_direction(coord.x);
alex_20 6:40ef2030334c 71 int magnitude = car.get_magnitude(coord.x);
alex_20 6:40ef2030334c 72
alex_20 6:40ef2030334c 73 if(direction == STRAIGHT) {
alex_20 6:40ef2030334c 74 y = 0;
alex_20 6:40ef2030334c 75 }
alex_20 3:cbe2dcca5058 76
alex_20 6:40ef2030334c 77 if(direction == LEFT) {
alex_20 6:40ef2030334c 78 if(magnitude == 1) {
alex_20 6:40ef2030334c 79 y = 4.0;
alex_20 6:40ef2030334c 80 }
alex_20 6:40ef2030334c 81 if(magnitude == 2) {
alex_20 6:40ef2030334c 82 y = 4.0;
alex_20 6:40ef2030334c 83 }
alex_20 6:40ef2030334c 84 start_pos -= car_speed;
alex_20 6:40ef2030334c 85 }
alex_20 6:40ef2030334c 86
alex_20 6:40ef2030334c 87 if(direction == RIGHT) {
alex_20 6:40ef2030334c 88 if(magnitude == 1) {
alex_20 6:40ef2030334c 89 y = 4.0;
alex_20 6:40ef2030334c 90 }
alex_20 6:40ef2030334c 91 if(magnitude == 2) {
alex_20 6:40ef2030334c 92 y = 8.0;
alex_20 6:40ef2030334c 93 }
alex_20 6:40ef2030334c 94 start_pos += car_speed;
alex_20 6:40ef2030334c 95 }
alex_20 6:40ef2030334c 96
alex_20 6:40ef2030334c 97 // define boundaries for car movement
alex_20 6:40ef2030334c 98 if(start_pos < 20.0) {
alex_20 6:40ef2030334c 99 start_pos = 20.0;
alex_20 6:40ef2030334c 100 }
alex_20 6:40ef2030334c 101
alex_20 6:40ef2030334c 102 if(start_pos > 55.0) {
alex_20 6:40ef2030334c 103 start_pos = 55.0;
alex_20 6:40ef2030334c 104 }
alex_20 6:40ef2030334c 105
alex_20 6:40ef2030334c 106 car.draw(lcd,start_pos,y);
alex_20 6:40ef2030334c 107
alex_20 6:40ef2030334c 108 printf("m= %d\n\n", magnitude);
alex_20 6:40ef2030334c 109 printf("d= %f\n\n", direction);
alex_20 3:cbe2dcca5058 110
alex_20 1:2ae7a8b01771 111 lcd.refresh();
eencae 0:be41a15e7a86 112 }
eencae 0:be41a15e7a86 113 }
alex_20 1:2ae7a8b01771 114
alex_20 1:2ae7a8b01771 115 void init_buttons()
alex_20 1:2ae7a8b01771 116 {
alex_20 1:2ae7a8b01771 117 // PCB has external pull-down resistors so turn the internal ones off
alex_20 1:2ae7a8b01771 118 // (default for DigitalIn)
alex_20 1:2ae7a8b01771 119 button_A.mode(PullNone);
alex_20 1:2ae7a8b01771 120 button_C.mode(PullNone);
alex_20 1:2ae7a8b01771 121 }