First full game commit

Author: tpanj

.gitignore

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+[submodule "raylib"]
+	path = raylib
+	url = https://github.com/raysan5/raylib.git

.gitmodules

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+cmake_minimum_required(VERSION 3.22)
+project(tetris42 VERSION 1.0.0)
+
+LIST(APPEND SRC tetris42.c)
+IF(WIN32)
+  LIST(APPEND SRC tetris42.rc)
+ENDIF()
+
+# Player count names are define via agruments
+add_executable(tetris42  ${SRC})
+# Players use generic names PLAYERn and below are seperate
+# clickable executables for different number of players
+add_executable(tetris4-1 ${SRC})
+add_executable(tetris4-2 ${SRC})
+add_executable(tetris4-3 ${SRC})
+add_executable(tetris4-4 ${SRC})
+
+target_compile_definitions(tetris4-1 PUBLIC PLAYERS=1)
+target_compile_definitions(tetris4-2 PUBLIC PLAYERS=2)
+target_compile_definitions(tetris4-3 PUBLIC PLAYERS=3)
+target_compile_definitions(tetris4-4 PUBLIC PLAYERS=4)
+
+set (CMAKE_BUILD_TYPE "Release")
+add_subdirectory(raylib)
+
+find_path(RAYLIB_DIR "raylib.h" HINTS raylib/src)
+include_directories(${RAYLIB_DIR})
+LIST(APPEND LIBS raylib)
+target_link_libraries(tetris42  ${LIBS})
+target_link_libraries(tetris4-1 ${LIBS})
+target_link_libraries(tetris4-2 ${LIBS})
+target_link_libraries(tetris4-3 ${LIBS})
+target_link_libraries(tetris4-4 ${LIBS})
+
+INSTALL(TARGETS tetris42 tetris4-1 tetris4-2 tetris4-3 tetris4-4
+DESTINATION bin)
+
+# CPack support -
+set(CPACK_GENERATOR "ZIP;TGZ")
+include (CPack)

CMakeLists.txt

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+# Tetris42
+
+Tetris tournament for up to 4 players. After a while the game moves on to more complicated forms.
+
+## [Releases download](https://github.com/tpanj/tetris42/releases) 
+
+![Screenshot for two players](tetris42.png)
+
+## Controls: __Rotate, movements.._
+
+1. Player
+    * `Keys_↑←↓→`
+1. Players
+    * `KEYS_WASD`  for player 1 on left
+    * `Keys_↑←↓→`  for player 2 on right
+1. Players
+    * `KEYS_WASD`  for player 1 on left
+    * `Keys_↑←↓→`  for player 2 on right
+    * `GPAD1_5876` for player 3 below
+1. Players
+    * `KEYS_WASD`  for player 1 on left
+    * `Keys_↑←↓→`  for player 2 on right
+    * `GPAD1_5876` for player 3 on left below
+    * `GPAD2_5876` for player 4 on right below