Erik Lomas / Mbed 2 deprecated 4180lab4

Revenge of the Mouse

Dependencies:   4DGL-uLCD-SE EthernetInterface Game_Synchronizer LCD_fonts MMA8452 SDFileSystem mbed-rtos mbed wave_player

Fork of 2035_Tanks_Shell by ECE2035 Spring 2015 TA

Tank/tank.cpp@20:6a58052b0140, 2015-10-29 (annotated)

Committer:
jford38
Date:
Thu Oct 29 02:21:11 2015 +0000
Revision:
20:6a58052b0140
Parent:
19:7aa3af04d6a8
Child:
21:edfeb289b21f
Updated to use separate functions to get button data and accelerometer data separately.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jford38 14:36c306e26317 1 #include "tank.h"
jford38 14:36c306e26317 2 #include "globals.h"
jford38 14:36c306e26317 3 #include "math.h"
jford38 14:36c306e26317 4 #include "game_synchronizer.h"
jford38 14:36c306e26317 5
jford38 14:36c306e26317 6 extern Game_Synchronizer sync;
jford38 14:36c306e26317 7
jford38 20:6a58052b0140 8 // sx is the x-coord of the bottom left corner of the tank
jford38 20:6a58052b0140 9 // sy is the y-coord of the same corner
jford38 20:6a58052b0140 10 // width is the width of the tank
jford38 20:6a58052b0140 11 // height is the height of the tank
jford38 14:36c306e26317 12 Tank::Tank(int sx, int sy, int width, int height, int color) {
jford38 14:36c306e26317 13 x = sx; y = sy;
jford38 14:36c306e26317 14 w = width; h = height;
jford38 14:36c306e26317 15 tank_color = color;
jford38 14:36c306e26317 16 barrel_theta = PI/4.0;
jford38 14:36c306e26317 17 barrel_length = w;
jford38 14:36c306e26317 18 wheel_rad = 2.0;
jford38 14:36c306e26317 19 draw();
jford38 14:36c306e26317 20 }
jford38 14:36c306e26317 21 int Tank::min_x(void) {
jford38 14:36c306e26317 22 int barrel_extent = (-barrel_length*cos(barrel_theta) > w/2.0) ? barrel_length*cos(barrel_theta) + w/2.0 : 0;
jford38 14:36c306e26317 23 return x + barrel_extent;
jford38 14:36c306e26317 24 }
jford38 14:36c306e26317 25
jford38 14:36c306e26317 26 int Tank::min_y(void) { return y; }
jford38 14:36c306e26317 27 int Tank::max_x(void) {
jford38 14:36c306e26317 28 int barrel_extent = (barrel_length*cos(barrel_theta) > w/2.0) ? barrel_length*cos(barrel_theta) : w/2.0;
jford38 14:36c306e26317 29 return x + w/2.0 + barrel_extent;
jford38 14:36c306e26317 30 }
jford38 14:36c306e26317 31
jford38 14:36c306e26317 32 int Tank::max_y(void) {
jford38 14:36c306e26317 33 int barrel_extent = (sin(barrel_theta) > 0) ? barrel_length*sin(barrel_theta) : 0;
jford38 14:36c306e26317 34 return y + h + wheel_rad + barrel_extent;
jford38 14:36c306e26317 35 }
jford38 14:36c306e26317 36
jford38 14:36c306e26317 37 void Tank::barrel_end(int& bx, int& by) {
jford38 14:36c306e26317 38 bx = x + w/2.0 + (barrel_length+1)*cos(barrel_theta);
jford38 14:36c306e26317 39 by = y+h+wheel_rad + (barrel_length+1)*sin(barrel_theta);
jford38 14:36c306e26317 40 }
jford38 14:36c306e26317 41
jford38 19:7aa3af04d6a8 42 void Tank::reposition(int dx, int dy, float dtheta) {
jford38 19:7aa3af04d6a8 43
jford38 19:7aa3af04d6a8 44 int new_x = x+dx;
jford38 19:7aa3af04d6a8 45 int new_y = y+dy;
jford38 19:7aa3af04d6a8 46 float new_theta = abs(barrel_theta+dtheta);
jford38 19:7aa3af04d6a8 47
jford38 14:36c306e26317 48 float old_theta = barrel_theta;
jford38 14:36c306e26317 49 int old_x = x;
jford38 14:36c306e26317 50 int old_y = y;
jford38 14:36c306e26317 51 int minx = min_x();
jford38 14:36c306e26317 52 int miny = min_y();
jford38 14:36c306e26317 53 int maxx = max_x();
jford38 14:36c306e26317 54 int maxy = max_y();
jford38 14:36c306e26317 55
jford38 19:7aa3af04d6a8 56 x = new_x; y = new_y; barrel_theta = (new_theta > PI) ? PI : new_theta;
jford38 14:36c306e26317 57
jford38 14:36c306e26317 58 if(min_x() < 0 || max_x() > 128) {
jford38 14:36c306e26317 59 x = old_x; y = old_y; barrel_theta = old_theta;
jford38 14:36c306e26317 60 draw();
jford38 14:36c306e26317 61 return;
jford38 14:36c306e26317 62 }
jford38 14:36c306e26317 63
jford38 14:36c306e26317 64 int right_edge = sync.read_pixel(min_x()-1, (min_y()+max_y())/2.0);
jford38 14:36c306e26317 65 int left_edge = sync.read_pixel(max_x()+1, (min_y()+max_y())/2.0);
jford38 14:36c306e26317 66
jford38 14:36c306e26317 67 if( ( right_edge != CONVERT_24_TO_16_BPP(SKY_COLOR) && new_x < old_x ) ||
jford38 14:36c306e26317 68 ( left_edge != CONVERT_24_TO_16_BPP(SKY_COLOR) && new_x > old_x ) ) {
jford38 14:36c306e26317 69 x = old_x; y = old_y; barrel_theta = old_theta;
jford38 14:36c306e26317 70 draw();
jford38 14:36c306e26317 71 return;
jford38 14:36c306e26317 72 }
jford38 14:36c306e26317 73
jford38 14:36c306e26317 74
jford38 14:36c306e26317 75 sync.filled_rectangle(minx, miny, maxx, maxy, SKY_COLOR);
jford38 14:36c306e26317 76 sync.line(old_x + w/2.0, old_y+h+wheel_rad, old_x + w/2.0 + 1 + barrel_length*cos(old_theta), old_y+h + barrel_length*sin(old_theta), SKY_COLOR);
jford38 14:36c306e26317 77 draw();
jford38 14:36c306e26317 78 }
jford38 14:36c306e26317 79
jford38 14:36c306e26317 80 void Tank::draw() {
jford38 14:36c306e26317 81 sync.line(x + w/2.0, y+h+wheel_rad, x + w/2.0 + barrel_length*cos(barrel_theta), y+h+wheel_rad + barrel_length*sin(barrel_theta), BLACK);
jford38 14:36c306e26317 82 sync.filled_rectangle(x, y+wheel_rad, x+w, y+h+wheel_rad, tank_color);
jford38 14:36c306e26317 83 sync.filled_circle(x+wheel_rad, y+wheel_rad, wheel_rad, BLACK);
jford38 14:36c306e26317 84 sync.filled_circle(x+w-wheel_rad, y+wheel_rad, wheel_rad, BLACK);
jford38 14:36c306e26317 85 }