chore: initialize project

6 files changed, 82 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..65ce78c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+obj
+main
+.ccls-cache
+*.exe
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..8730842
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,23 @@
+CC=gcc
+CFLAGS=-g -Ofast -fsanitize=address -static-libasan
+SRC=src
+OBJ=obj
+SOURCES=$(wildcard $(SRC)/*.c)
+OBJECTS=$(patsubst $(SRC)/%.c, $(OBJ)/%.o, $(SOURCES))
+BIN=main
+
+
+run: $(BIN)
+	./$(BIN)
+
+build: $(BIN)
+
+$(BIN): $(OBJECTS)
+	$(CC) $(CFLAGS) $(OBJECTS) -o $(BIN)
+
+$(OBJ)/%.o: $(SRC)/%.c $(SRC)/*.h
+	$(CC) -c $< -o $@
+
+clean:
+	rm -r $(BIN) $(OBJ)/*.o
+
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..16f487f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,14 @@
+# j1chess
+Chess engine powered by footguns!
+
+## Knowledge sources
+https://www.chessprogramming.org/
+
+## Board representation
+Piece-centric [bitboard approach](https://www.chessprogramming.org/Bitboards) is used to represent the board.
+
+**LSF** (Least Significant File) square mapping is used, meaning that the square index is calculated as follows:
+```
+square = 8 * rank + file;
+```
+
diff --git a/src/board.h b/src/board.h
new file mode 100644
index 0000000..6cde670
--- /dev/null
+++ b/src/board.h
@@ -0,0 +1,29 @@
+#include "types.h"
+
+#define WHITE  0b0000
+#define BLACK  0b0001
+
+#define PAWN   0b0000
+#define KNIGHT 0b0010
+#define BISHOP 0b0100
+#define ROOK   0b0110
+#define QUEEN  0b1000
+#define KING   0b1010
+
+typedef QWORD Bitboard;
+
+typedef struct {
+  Bitboard pieces[12];
+  BYTE side;
+  BYTE castling_rights;
+  BYTE en_passant_square;
+} Board;
+
+const char* pieces[] = {
+  "♟︎", "♙",
+  "♞", "♘",
+  "♝", "♗",
+  "♜", "♖",
+  "♛", "♕",
+  "♚", "♔",
+};
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..e9902b2
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+#include "board.h"
+
+int main() {
+  printf("Size of board: %lu bytes\n", sizeof(Board));
+  return 0;
+}
diff --git a/src/types.h b/src/types.h
new file mode 100644
index 0000000..4f95bb3
--- /dev/null
+++ b/src/types.h
@@ -0,0 +1,5 @@
+typedef unsigned char  BYTE;
+typedef unsigned short WORD;
+typedef unsigned long QWORD;
+
+