Stephen Schwahn / Mbed 2 deprecated Dodger

A game for Lab 4 of ECE 4180

Dependencies:   4DGL-uLCD-SE LSM9DS1_Library SDFileSystem mbed-rtos mbed wave_player

Invader.cpp@3:27889fffc2f7, 2016-03-12 (annotated)

Committer:
Dogstopper
Date:
Sat Mar 12 19:59:00 2016 +0000
Revision:
3:27889fffc2f7
Parent:
0:6a49493943be 
Really good 3PM 3/12/16

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Dogstopper 0:6a49493943be 1 #include "Invader.h"
Dogstopper 3:27889fffc2f7 2 #include <stdlib.h> /* srand, rand */
Dogstopper 3:27889fffc2f7 3 #include <time.h> /* time */
Dogstopper 0:6a49493943be 4
Dogstopper 3:27889fffc2f7 5 #define WIDTH 10
Dogstopper 3:27889fffc2f7 6 #define HEIGHT 10
Dogstopper 0:6a49493943be 7
Dogstopper 3:27889fffc2f7 8 Invader::Invader(uLCD_4DGL* startScreen, int w, int h)
Dogstopper 0:6a49493943be 9 {
Dogstopper 3:27889fffc2f7 10 /* initialize random seed: */
Dogstopper 3:27889fffc2f7 11 srand (time(NULL));
Dogstopper 3:27889fffc2f7 12
Dogstopper 3:27889fffc2f7 13 windowWidth = w;
Dogstopper 3:27889fffc2f7 14 windowHeight = h;
Dogstopper 0:6a49493943be 15 screen = startScreen;
Dogstopper 3:27889fffc2f7 16 resetLocationAndSpeed();
Dogstopper 0:6a49493943be 17 }
Dogstopper 0:6a49493943be 18
Dogstopper 0:6a49493943be 19 void Invader::update()
Dogstopper 0:6a49493943be 20 {
Dogstopper 3:27889fffc2f7 21 printf("x: %d, y: %d, spdY: %d\n\r", x,y, spdY);
Dogstopper 3:27889fffc2f7 22 lastX = x;
Dogstopper 3:27889fffc2f7 23 lastY = y;
Dogstopper 3:27889fffc2f7 24
Dogstopper 0:6a49493943be 25 x += spdX;
Dogstopper 0:6a49493943be 26 y += spdY;
Dogstopper 3:27889fffc2f7 27
Dogstopper 3:27889fffc2f7 28 if (x <= -10 || y <= -10 || x+WIDTH >= windowWidth + 10 || y+HEIGHT >= windowHeight + 10) {
Dogstopper 3:27889fffc2f7 29 // Then it is beyond the starting location for the box and we should reset it.
Dogstopper 3:27889fffc2f7 30 resetLocationAndSpeed();
Dogstopper 3:27889fffc2f7 31 }
Dogstopper 0:6a49493943be 32 }
Dogstopper 0:6a49493943be 33
Dogstopper 0:6a49493943be 34 void Invader::draw()
Dogstopper 0:6a49493943be 35 {
Dogstopper 0:6a49493943be 36 screen_mutex.lock();
Dogstopper 3:27889fffc2f7 37 screen->filled_rectangle(lastX-WIDTH/2-1, lastY-HEIGHT/2-1, lastX+3*WIDTH/2, lastY+3*HEIGHT/2, BLACK);
Dogstopper 3:27889fffc2f7 38 screen->filled_rectangle(x, y, x+WIDTH, y+HEIGHT, RED);
Dogstopper 0:6a49493943be 39 screen_mutex.unlock();
Dogstopper 0:6a49493943be 40 }
Dogstopper 0:6a49493943be 41
Dogstopper 0:6a49493943be 42 bool Invader::intersects(int otherX, int otherY, int otherWidth, int otherHeight)
Dogstopper 0:6a49493943be 43 {
Dogstopper 0:6a49493943be 44 if (((otherX > x && otherX <= x + WIDTH) || (otherX + otherWidth > x && otherX + otherWidth <= x + WIDTH)) &&
Dogstopper 0:6a49493943be 45 ((otherY > y && otherY <= y + HEIGHT) || (otherY + otherHeight > y && otherY + otherHeight <= y + HEIGHT))) {
Dogstopper 3:27889fffc2f7 46 printf("Intersects\n");
Dogstopper 0:6a49493943be 47 return true;
Dogstopper 0:6a49493943be 48 }
Dogstopper 0:6a49493943be 49 else {
Dogstopper 3:27889fffc2f7 50 printf("Not Intersecting\n\n");
Dogstopper 0:6a49493943be 51 return false;
Dogstopper 0:6a49493943be 52 }
Dogstopper 0:6a49493943be 53 }
Dogstopper 3:27889fffc2f7 54
Dogstopper 3:27889fffc2f7 55 void Invader::resetLocationAndSpeed()
Dogstopper 3:27889fffc2f7 56 {
Dogstopper 3:27889fffc2f7 57 int side = rand() % 4;
Dogstopper 3:27889fffc2f7 58 switch(side) {
Dogstopper 3:27889fffc2f7 59 case 0: // Left
Dogstopper 3:27889fffc2f7 60 x = -9;
Dogstopper 3:27889fffc2f7 61 y = (int)(rand() % (windowHeight - HEIGHT));
Dogstopper 3:27889fffc2f7 62 spdX = (int)(rand() % 3 + 1);
Dogstopper 3:27889fffc2f7 63 spdY = (int)(((int)rand())==0 ? -1 : 1)*(rand() % 3);
Dogstopper 3:27889fffc2f7 64 break;
Dogstopper 3:27889fffc2f7 65 case 1: // Right
Dogstopper 3:27889fffc2f7 66 x = windowWidth - 1;
Dogstopper 3:27889fffc2f7 67 y = (int)(rand() % (windowHeight - HEIGHT));
Dogstopper 3:27889fffc2f7 68 spdX = (int) (-1*(rand() % 3 + 1));
Dogstopper 3:27889fffc2f7 69 spdY = (int)(((int)rand())==0 ? -1 : 1)*(rand() % 3);
Dogstopper 3:27889fffc2f7 70 break;
Dogstopper 3:27889fffc2f7 71 case 2: // Top
Dogstopper 3:27889fffc2f7 72 x = (int)(rand() % (windowWidth - WIDTH));
Dogstopper 3:27889fffc2f7 73 y = -9;
Dogstopper 3:27889fffc2f7 74 spdX = (int)(((int)rand())==0 ? -1 : 1)*(rand() % 3);
Dogstopper 3:27889fffc2f7 75 spdY = (int)(rand() % 3 + 1);
Dogstopper 3:27889fffc2f7 76 break;
Dogstopper 3:27889fffc2f7 77 case 3: // Bottom
Dogstopper 3:27889fffc2f7 78 x = (int)(rand() % (windowWidth - WIDTH));
Dogstopper 3:27889fffc2f7 79 y = windowWidth-1;
Dogstopper 3:27889fffc2f7 80 spdX = (int)(((int)rand())==0 ? -1 : 1)*(rand() % 3);
Dogstopper 3:27889fffc2f7 81 spdY = (int)(-1*(rand() % 3 + 1));
Dogstopper 3:27889fffc2f7 82 break;
Dogstopper 3:27889fffc2f7 83 }
Dogstopper 3:27889fffc2f7 84 }