Ben Evans / Mbed 2 deprecated Defender_Game

Ben Evans University Second Year Project. Game Called Defender.

Dependencies:   mbed

https://os.mbed.com/media/uploads/evanso/84bc1a30759fd6a1e3f1fd1fae3e97c2.png

Hello, soldier, you have been specially selected as the defender of planet earth.

Your mission, if you choose to accept it. Fly around the planet and pulverise invading alien ships for as long as you can. Stop the aliens abducting the innocent people on the ground. Be warned if an alien ship manages to abduct a person and take them to top of the screen, they will no longer move randomly and will begin to hunt you down. This sounds like a challenge you were trained for.

But don’t worry soldier you’re not going into battle empty-handed. Your ship is equipped with a state of the art laser beam that has unlimited ammo and four smart bombs that will destroy anything on the screen. The ship also has three lives so use them wisely.

As time goes on more alien ships will arrive on planet earth increasing the difficulty of your mission. And remember the landscape bellow loops around so if you continually fly in the same direction you go to your original position. Good luck soldier.

ParentClasses/CheckCollisions/CheckCollision.cpp

Committer:
evanso
Date:
2020-05-26
Revision:
85:87bc28b151d8
Parent:
82:3211b31e9421

File content as of revision 85:87bc28b151d8:

#include "CheckCollision.h"

bool CheckCollision::check_collision(Weapons bullet) {
    bool collision = false; 
    Vector2D bullet_pos = bullet.get_pos();
    // printf ("Collision 1 = %d\n", collision);
    
    // Checks collision if bullet is going in east direction 
    if (bullet.get_direction()) {
    // int bullet_pos_twox = bullet_pos.x;
    // int bullet_pos_twoy = bullet_pos.y;
    // printf ("alien x = %d, bullet x = %d\n", position_x_,bullet_pos_twox);
    // printf ("alien y = %d, bullet y = %d\n", position_y_,bullet_pos_twoy);
        
        // Collision if the bullet is inside of the xy ranges of sprite drawing
        if ((bullet_pos.x + 1) >= position_x_ && 
        (bullet_pos.x + 1) <= (position_x_ + sprite_x_length ) && 
        position_y_ <= bullet_pos.y && 
        bullet_pos.y <= (position_y_ + sprite_y_length )) {
            collision = true;
        }
        
    // printf ("Collision 2 = %d\n", collision);  
      
    // Checks collision if bullet is going in west direction 
    }else if (!bullet.get_direction()) {
        
        if (bullet_pos.x <= (position_x_ + sprite_x_length ) && 
        bullet_pos.x >= position_x_ && 
        position_y_ <= bullet_pos.y && 
        bullet_pos.y <= (position_y_ + sprite_y_length )) {
            collision = true;
        }
        
     // printf ("Collision 3 = %d\n", collision);   
    }
    
    // printf ("Collision 4 = %d\n", collision);   
    return collision;
}