Yi Hao Chen / Mbed 2 deprecated 4180_lab4_tank_war_game

Game for 4180 Lab4

Dependencies:   4DGL-uLCD-SE 4180_lab4_tank_war_game Game_Synchronizer MMA8452 SDFileSystem mbed-rtos mbed wave_player

Dependents:   4180_lab4_tank_war_game

Bullet/bullet.h@0:ffed9a3bc797, 2017-03-13 (annotated)

Committer:
ychen644
Date:
Mon Mar 13 21:23:17 2017 +0000
Revision:
0:ffed9a3bc797
Uploading 4180 Lab4 game to Notebook wiki

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ychen644 0:ffed9a3bc797 1 #ifndef BULLET_H__
ychen644 0:ffed9a3bc797 2 #define BULLET_H__
ychen644 0:ffed9a3bc797 3
ychen644 0:ffed9a3bc797 4 #include "tank.h"
ychen644 0:ffed9a3bc797 5
ychen644 0:ffed9a3bc797 6 #define BULLET_NO_COLLISION -1
ychen644 0:ffed9a3bc797 7 #define BULLET_OFF_SCREEN -2
ychen644 0:ffed9a3bc797 8
ychen644 0:ffed9a3bc797 9 class Bullet{
ychen644 0:ffed9a3bc797 10 public:
ychen644 0:ffed9a3bc797 11 // sky color
ychen644 0:ffed9a3bc797 12 int SKY_COLOR;
ychen644 0:ffed9a3bc797 13
ychen644 0:ffed9a3bc797 14 // (x0, y0) is the position of the bullet at the start of its trajectory.
ychen644 0:ffed9a3bc797 15 int x0, y0;
ychen644 0:ffed9a3bc797 16
ychen644 0:ffed9a3bc797 17 // The components of the bullet's initial velocity.
ychen644 0:ffed9a3bc797 18 float vx0, vy0;
ychen644 0:ffed9a3bc797 19
ychen644 0:ffed9a3bc797 20 // The current position of the bullet.
ychen644 0:ffed9a3bc797 21 int x, y;
ychen644 0:ffed9a3bc797 22
ychen644 0:ffed9a3bc797 23 // currernt velocity
ychen644 0:ffed9a3bc797 24 float vx, vy;
ychen644 0:ffed9a3bc797 25 int bounce;
ychen644 0:ffed9a3bc797 26
ychen644 0:ffed9a3bc797 27 // power up
ychen644 0:ffed9a3bc797 28 int powerups;
ychen644 0:ffed9a3bc797 29 int power;
ychen644 0:ffed9a3bc797 30
ychen644 0:ffed9a3bc797 31 // How fast is the bullet?
ychen644 0:ffed9a3bc797 32 int speed;
ychen644 0:ffed9a3bc797 33
ychen644 0:ffed9a3bc797 34 // Keep track of the time since the bullet was shot.
ychen644 0:ffed9a3bc797 35 float time;
ychen644 0:ffed9a3bc797 36
ychen644 0:ffed9a3bc797 37 // Keep track of whether the bullet is currently in flight.
ychen644 0:ffed9a3bc797 38 // If it is in_flight, update its position. Otherwise, ignore it.
ychen644 0:ffed9a3bc797 39 // Set in_flight when the bullet is shot.
ychen644 0:ffed9a3bc797 40 // Reset in_flight when the bullet hits something.
ychen644 0:ffed9a3bc797 41 bool in_flight;
ychen644 0:ffed9a3bc797 42
ychen644 0:ffed9a3bc797 43 // Keep a pointer to the tank that shot this bullet. You'll need
ychen644 0:ffed9a3bc797 44 // it to access information about the tank.
ychen644 0:ffed9a3bc797 45 Tank* tank;
ychen644 0:ffed9a3bc797 46
ychen644 0:ffed9a3bc797 47 // Create a bullet!
ychen644 0:ffed9a3bc797 48 Bullet(Tank* t);
ychen644 0:ffed9a3bc797 49
ychen644 0:ffed9a3bc797 50 // change sky
ychen644 0:ffed9a3bc797 51 void changeSky(int SKY_COLOR2);
ychen644 0:ffed9a3bc797 52
ychen644 0:ffed9a3bc797 53 // powerup
ychen644 0:ffed9a3bc797 54 void powerUp(void);
ychen644 0:ffed9a3bc797 55
ychen644 0:ffed9a3bc797 56 // Shoot the bullet!
ychen644 0:ffed9a3bc797 57 void shoot(void);
ychen644 0:ffed9a3bc797 58
ychen644 0:ffed9a3bc797 59 // given a time delta, calculate the new (x, y) coords of the bullet.
ychen644 0:ffed9a3bc797 60 void update_position(float dt);
ychen644 0:ffed9a3bc797 61
ychen644 0:ffed9a3bc797 62 // Once per frame, plug in the time since the last frame.
ychen644 0:ffed9a3bc797 63 // Clear the old bullet and redraw it in the new place.
ychen644 0:ffed9a3bc797 64 // Do collision detection here. Return a code describing what has
ychen644 0:ffed9a3bc797 65 // (or hasn't) been hit.
ychen644 0:ffed9a3bc797 66 int time_step(float dt);
ychen644 0:ffed9a3bc797 67 };
ychen644 0:ffed9a3bc797 68
ychen644 0:ffed9a3bc797 69 #endif