File	Date	Author	Commit
Resources	2022-09-24	pellea72	[1e295b] updated copyright dates for 2022
doc	2022-09-24	pellea72	[1e295b] updated copyright dates for 2022
source	2022-09-24	pellea72	[1e295b] updated copyright dates for 2022
.hgtags	2017-04-25	eric	[e947cc] release 0.9.2, the first to include sound files...
INSTALL	2022-09-24	pellea72	[1e295b] updated copyright dates for 2022
LICENSE	2007-10-17	pellea72	[6f398f] cleaning and changing to Linux development envi...
README	2022-09-24	pellea72	[1e295b] updated copyright dates for 2022

Read Me

nV@derz!(nvaderz)
(c) 2006-2022 Eric Pellegrin

This is a space shoot-em-up game based on the classic arcade game
Space Invaders, with some variations.

The game is licensed under the GNU General Public License (GPL), and
you are free to use it, modify it, and distribute it as long as you
abide by the terms of the license (see the LICENSE file), and any
copies or modifications must be distributed under these
same terms.

The game images are released under a Creative Commons license (see the file Resources/CC_LICENSE) and may be used and modified as long as attribution
is given to the original author and any copies or modifications are distributed under these same terms.

The sounds have been gathered from freesound.iua.edu and are licensed
under the Creative Commons Sampling Plus 1.0 License. They are copyright
their respective authors.

See the INSTALL file for instructions on building from source. The game
requires the Resources directory to be in the same directory as the
game executable.

You may need to modify Resources/settings.file to make the game
playable on your system. More work is needed before the game will
have a consistent speed on different systems.

------------
How to play:

Gameplay is still in development, but for now, here's how to play
the present version.

1. Launch the application. A menu will pop up with several options,
   that can be highlighted with the up and down arrows on the keyboard.
   Right now, only "START GAME" and "QUIT" are available.

2. To play a new game, press the "Return" key (or "Enter", depending
   on your keyboard) while "START GAME" is highlighted.

3. Once the game begins, you can use the left and right arrow keys to
   control your cannon. Press the spacebar to fire shots at the enemy.
   You can only have one shot on screen at a time, so you will be able
   to fire again once your shot hits an enemy or it goes off the top
   of the screen. Use the down arrow key to activate and deactivate
   the shield.

   You can also use a USB joystick (if enabled) to play the game, although which
   buttons correspond to which actions are different from one brand
   of joystick to another. A joystick configuration screen is in the
   works. NOTE: JOYSTICK SUPPORT DISABLED ON FEBRUARY 20, 2019

4. You start the game with three lives, and you lose a life every time
   your cannon is hit by enemy fire. You lose the game when you run out
   of lives, or when the enemy reaches the bottom of the screen.

5. To start a game over (reset), press the "R" key. To end a game and
   return to the main menu, press the "Esc" (escape) key.

6. To exit the game program, select the "QUIT" option in the main menu
   and press the "Return" ("Enter") key.

7. Player bonuses: When you shoot the little blue spinning capsule that
   appears occasionally, one of three temporary player bonuses will be
   awarded:
	a) Three-shot: allows player to fire up to three shots before
   waiting for a shot to hit a target or go off the screen, rather than
   the usual limit of one shot.

	b) Guided missiles: After firing a shot, if the player holds down
   the fire button (currently the spacebar), the shot will follow the movement
   of the player.

	c) One-way shield: A shield will appear in the space normally occupied
   by the regular shield, which allows the player to shoot through, but stops
   all enemy bombs. If the one-way shield is touched by invaders, it will kill
   the invaders and immediately deactivate rather than waiting for the normal
   bonus time to run out.

   A player can have all three bonuses active simultaneously.

8. Enemy bonuses: There are two enemy bonuses activated by allowing the orange
   missile to reach the ground, and one that progressively develops as the
   levels increase.
	a) Impact missile: When the orange missile strikes the ground, the
   shield, or the player, a blast zone is formed for a few moments that will
   kill a player that comes in contact with it.

	b) Invisible invaders: When the orange missile strikes the ground, the
   invader horde becomes invisible for the duration of the bonus, but will
   briefly flash visible when an invader is killed.

	c) Super invaders: As the levels progress, multi-colored invaders
   require two or three hits to kill. Each hit changes the color to a lesser
   Super invader until it becomes a regular invader.

Have fun.