Add modified Xinvaders 3D game

Builds for X or direct display via the Vectrex Interface library.
The latter needs clipping of lines outside the display area and is
mainly for comparative purposes.

Makefile.raspbian

@@ -1,4 +1,4 @@
-all:	vecx.emulated/vecx vecx.direct/vecx gyrocks/gyrocks battlezone/battlezone gravitar/gravitar spaceduel/spaceduel tempest/tempest blackwidow/blackwidow deluxe/deluxe lunar/lunar cinematronics/cinemu helloWorld redbaron/redbaron linmenu/linmenu VMMenu/vmmenu xhyperoid/vhyperoid zblast/zblast tailgunner/tailgunner asteroids_sbt/asteroids
+all:	vecx.emulated/vecx vecx.direct/vecx gyrocks/gyrocks battlezone/battlezone gravitar/gravitar spaceduel/spaceduel tempest/tempest blackwidow/blackwidow deluxe/deluxe lunar/lunar cinematronics/cinemu helloWorld redbaron/redbaron linmenu/linmenu VMMenu/vmmenu xhyperoid/vhyperoid zblast/zblast tailgunner/tailgunner asteroids_sbt/asteroids xinvaders3d/xinv3d
 
 lunar/lunar:
 	cd lunar; make -f Makefile.raspbian
@@ -67,15 +67,19 @@ linmenu/linmenu:
 VMMenu/vmmenu:
 	cd VMMenu; make -f Makefile.raspbian
 	cd ..
-	
+
 xhyperoid/vhyperoid:
 	cd xhyperoid; make -f Makefile
 	cd ..
-	
+
 zblast/zblast:
 	cd zblast; make -f Makefile
 	cd ..
 
+xinvaders3d/xinv3d:
+	cd xinvaders3d; make -f Makefile
+	cd ..
+
 clean:
 	cd lunar; make -f Makefile.raspbian clean
 	cd ..
@@ -123,6 +127,8 @@ clean:
 	cd ..
 	cd zblast; make -f Makefile clean
 	cd ..
+	cd xinvaders3d; make -f Makefile clean
+	cd ..
 
 install:
 	mkdir -p /opt/pitrex/bin

xinvaders3d/Makefile

@@ -0,0 +1,60 @@
+BUILD_DIR_PURE := build.raspbian
+BUILD_DIR := $(BUILD_DIR_PURE)/
+
+PITREX_DIR := ../pitrex/pitrex/
+VECTREX_DIR := ../pitrex/vectrex/
+
+.PHONY: pitrexLib
+
+all: game pitrex
+
+CC = gcc
+XLIB = -L/usr/X11R6/lib -I/usr/X11R6/include
+LIBS = -lm
+XOBJS = game.o aliens.o player.o effects.o \
+object.o camera.o main-x11.o vec4x1.o mat4x4.o
+PITREXOBJS = $(PITREX_DIR)$(BUILD_DIR)bcm2835.o \
+$(PITREX_DIR)$(BUILD_DIR)pitrexio-gpio.o \
+$(VECTREX_DIR)$(BUILD_DIR)vectrexInterface.o \
+$(VECTREX_DIR)$(BUILD_DIR)osWrapper.o \
+$(VECTREX_DIR)$(BUILD_DIR)baremetalUtil.o \
+game.o aliens.o player.o effects.o \
+object.o camera.o main-pitrex.o vec4x1.o mat4x4.o
+DEPENDS = 
+#CFLAGS = -g -Wall -pedantic -ansi
+CFLAGS = -g -I../pitrex/ -DPIZERO -DRPI0 -Wall
+#OPTIONS = -D_GNU_SOURCE -DGAME_LINUX_X11 -DGAME_DEBUG
+OPTIONS = -DGAME_LINUX_X11
+
+pitrexLib:
+	$(MAKE) -C $(PITREX_DIR) -f Makefile.raspbian all
+	$(MAKE) -C $(VECTREX_DIR) -f Makefile.raspbian all
+
+.c.o: $(DEPENDS)
+	$(CC) -c $(CFLAGS) $(OPTIONS) $< -o $@
+
+game: $(XOBJS) $(DEPENDS)
+	$(CC) $(CFLAGS) -o xinv3d $(XOBJS) $(XLIB) $(LIBS) -lX11 $(OPTIONS)
+
+pitrex: $(PITREXOBJS) $(DEPENDS) pitrexLib
+	$(CC) $(CFLAGS) -o xinv3d_pitrex $(PITREXOBJS) $(LIBS) $(OPTIONS)
+
+clean:
+	$(RM) *.o xinv3d xinv3d_pitrex
+
+aliens.o: aliens.c game.h vec4x1.h mat4x4.h camera.h system.h defines.h \
+ object.h externs.h
+camera.o: camera.c mat4x4.h vec4x1.h camera.h
+effects.o: effects.c game.h vec4x1.h mat4x4.h camera.h system.h \
+ defines.h object.h externs.h
+game.o: game.c game.h vec4x1.h mat4x4.h camera.h system.h defines.h \
+ object.h externs.h
+object.o: object.c mat4x4.h vec4x1.h defines.h object.h
+main-x11.o: main-x11.c game.h vec4x1.h mat4x4.h camera.h system.h \
+ defines.h object.h externs.h
+main-pitrex.o: main-pitrex.c game.h vec4x1.h mat4x4.h camera.h system.h \
+ defines.h object.h externs.h
+mat4x4.o: mat4x4.c mat4x4.h vec4x1.h
+player.o: player.c game.h vec4x1.h mat4x4.h camera.h system.h defines.h \
+ object.h externs.h
+vec4x1.o: vec4x1.c vec4x1.h

xinvaders3d/Makefile.dos

@@ -0,0 +1,36 @@
+all: game
+
+CC = gcc
+LIBS  = -lalleg -lm
+OBJS = game.o aliens.o player.o effects.o \
+object.o camera.o main-dos.o vec4x1.o mat4x4.o
+DEPENDS = 
+#CFLAGS = -pg -Wall -pedantic -ansi
+#CFLAGS = -ansi
+#OPTIONS = -D_GNU_SOURCE -DGAME_LINUX_X11 -DGAME_DEBUG
+OPTIONS= -DGAME_LINUX_X11
+
+.c.o: $(DEPENDS)
+	$(CC) -c $(CFLAGS) $(OPTIONS) $< -o $@
+
+game: $(OBJS) $(DEPENDS)
+	$(CC) -o xinv3d $(OBJS) $(LIBS) $(OPTIONS)
+
+clean:
+	del *.o
+	del xinv3d.exe
+
+aliens.o: aliens.c game.h vec4x1.h mat4x4.h camera.h system.h defines.h \
+ object.h externs.h
+camera.o: camera.c mat4x4.h vec4x1.h camera.h
+effects.o: effects.c game.h vec4x1.h mat4x4.h camera.h system.h \
+ defines.h object.h externs.h
+game.o: game.c game.h vec4x1.h mat4x4.h camera.h system.h defines.h \
+ object.h externs.h
+object.o: object.c mat4x4.h vec4x1.h defines.h object.h
+main-dos.o: main-dos.c game.h vec4x1.h mat4x4.h camera.h system.h \
+ defines.h object.h externs.h
+mat4x4.o: mat4x4.c mat4x4.h vec4x1.h
+player.o: player.c game.h vec4x1.h mat4x4.h camera.h system.h defines.h \
+ object.h externs.h
+vec4x1.o: vec4x1.c vec4x1.h

xinvaders3d/README

@@ -0,0 +1,183 @@
+
+XInvaders 3D v1.3.6
+-=-=-=-=-=-=-=-=-=-
+XInvaders 3D is a vector-graphics Space Invaders clone
+for the X Window System.
+
+Modified for PiTrex by Kevin Koster, 2022.
+
+================================================================
+
+Objective:
+-=-=-=-=-=-
+Clear all the aliens in each level. The UFO yields bonus 
+points if hit. A new life will be added every 7500 points.
+
+Game-over: either if the player has lost all its lives
+or if the alien formation reaches the player position.
+
+================================================================
+
+Point System:
+-=-=-=-=-=-=-
+
+From bottom to top:
+Row 0 aliens yield 10  pts
+Row 1 aliens yield 50  pts
+Row 2 aliens yield 100 pts
+Row 3 aliens yield 150 pts
+Row 4 aliens yield 200 pts
+
+UFO yields 500 pts
+
+================================================================
+
+Buttons:
+-=-=-=-
+
+4             : Fire Missile
+1             : Reset game
+2             : Show frame-rate
+3             : Pause game
+
+================================================================
+
+How to compile and play the game:
+-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
+
+1. Requirements: gcc and Xlib
+2. Compile the game, type: make
+3. Run the game, type: ./xinv3d
+
+note:
+You may have to edit the Makefile depending on where
+your headers and libraries are. For other systems please
+see the README.xxx for that system.
+
+xinv3d_pitrex is the PiTrex-direct version. The PiTrex-direct
+version doesn't require X, but doesn't yet suport bare-metal. It
+needs clipping to be added.
+
+================================================================
+
+Contact Author:
+-=-=-=-=-=-=-=-
+Don Llopis
+[email protected]
+http://xinvaders3d.sourceforge.net
+
+================================================================
+
+Greetings:
+-=-=-=-=-=-
+Greets to following people whose games helped inspire 
+this project:
+
+Bill Kendrick 
+who wrote ICBM3d http://www.newbreedsoftware.com
+
+Yuusuke Hashimoto
+who wrote XSoldier http://www.surfline.ne.jp/hachi/xsoldier.html 
+
+James Eibisch
+who wrote a Space Invaders clone in quick-basic
+http://www.revolver.demon.co.uk/coding/index.html
+
+Thanks to the following people who contributed to the development
+of XInvaders3d:
+
+Thomas Boutell for contributing the Windows Port of XInvaders, and
+misc code fixes.
+
+Sam Bushell for the ZONE_HEIGHT bug fix.
+
+Andreas Jeitler for creating the RPM package.
+
+Chris Butler for creating the DEB package.
+
+Peter da Silva for the FreeBSD fix.
+
+Bill Kendrick for the Window Manager fix.
+
+================================================================
+
+History:
+-=-=-=-=-
+
+1.3.6:
+		Minor fixes.
+		Changed some game text which had the wrong
+		contact information.
+		Made some more code clean ups.
+
+1.3.5:
+      Moved all game text to gtext.h. 
+      Removed `goto' in init code.
+      Put a space in ``game over.'' 
+
+1.32-1.34:
+      Minor fixes.
+
+1.31:
+      Fixed drawing order. Objects were being drawn in reverse.
+
+1.3:
+      Many thanks to Thomas Boutell, he has contributed a 
+      Windows port of XInvaders 3D. See README.win for more
+      information. 
+
+      XInvaders 3D DOS port finished. XInvaders 3D will now run
+      as a full-screen 640x480x8 DOS game. For windows users it 
+      will run in a DOS window just fine. I used DJGPP+Allegro
+      to port it. See README.dos for more information.
+
+      Added Vector-fonts. All text graphics have been
+      replaced with Vector-fonts. Gives the game a
+      cleaner look.
+
+      New player blinking routine. Player now cycles
+      through red colors, rather than being drawn
+      each alternate frame, when a new level
+      has been started.
+
+      New special effect: 1-UP indicator. When 7500pts
+      have been reached a new life is indicated by
+      a nice little vector 1-UP floating towards
+      the player.
+
+      New alien-shoot missile routine. Aliens now shoot
+      more.
+
+      New Distance-of-Point-to-Line routine, used for
+      collision detection. 
+
+      Added fix for FreeBSD systems, thanks to Peter da Silva.
+
+      Fixed ZONE_HEIGHT bug in game.c, which was generating 
+      bad pointers, thanks to Sam Bushell.
+
+      Cleaned up code, for portability reasons, thanks to
+      Thomas Boutell for his help.
+
+      Left-Shift key is no longer being used. 
+
+1.2: 
+      Cleaned up some more code. 
+
+      Adjusted formation movement.
+
+      Changed missile color to yellow, suggested by Mattia Engdeg.
+
+      Fixed some warnings which the pedantic flag generates,
+      thanks to Jarmo Pussinen for pointing them out.
+
+1.1:  
+      Fixed incompatible pointer warnings.
+
+      Fixed window manager bug which Bill Kendrick pointed out.
+
+      Windows were opening at an odd width and height under
+      the Enlightenment Window manager.
+
+1.0:
+      Initial release.

xinvaders3d/README.dos

@@ -0,0 +1,28 @@
+See the file README for complete information about XInvaders 3D 
+in general. This file covers MS-DOS issues only.
+
+INFORMATION FOR PLAYERS:
+
+This is the MS-DOS port of XInvaders 3D. It should run on any 
+IBM-PC or compatible, running some version of MS-DOS greater than 6.0. 
+To start the game, just type: xinv3d. See README for instructions.
+
+MS-DOS port done by Don Llopis ([email protected]).
+
+INFORMATION FOR PROGRAMMERS:
+
+To build the game, type: 
+        make -f Makefile.dos
+
+You must have the latest version of DJGPP (a 32bit DOS compiler) and at 
+least version 3.12 of the Allegro graphics library.
+
+If you make any modifications to the code, please keep ALL DOS-specific
+code in main-dos.c.
+
+Both DJGPP and Allegro can be found here:
+http://www.delorie.com/djgpp/
+
+Have Fun!
+Don Llopis
+[email protected]

xinvaders3d/README.win

@@ -0,0 +1,25 @@
+See the file README for complete information about XInvaders 3D 
+in general. This file covers Microsoft Windows issues only.
+
+INFORMATION FOR PLAYERS:
+
+This Windows port of XInvaders 3D runs on Windows 95, 98, NT,
+and 2000. To start the game, just launch xinv3d.exe. See README
+for instructions, or look at "How to Play" on the system menu
+after you start the game.
+
+This Windows port was done by Thomas Boutell ([email protected]).
+
+INFORMATION FOR PROGRAMMERS:
+
+To build the game, just add all of the .c files to a "Win32 Application"
+project, including main-w.c, but excluding main-x11.c and any other
+main-*.c files for non-Windows operating systems. Then, BE SURE TO
+DEFINE THE PREPROCESSOR MACRO GAME_WIN32. If you prefer Makefiles, use 
+the Unix Makefile as a guide. This game is very easy to build with
+any Windows development environment.
+
+If you make any modifications to the code, please keep ALL Windows-specific
+code in main-w.c where it belongs! 
+
+Windows-specific questions? Contact Thomas Boutell ([email protected]).