added down acceleration while pressing down key

README.md

@@ -2,6 +2,6 @@
 This project is based on the Tetris game invented by Alekseï Pajitnov in 1984.
 The goal is to complete a maximum of lines in a grid with pieces (tetrominoes) that fall from the top.
 
-# Building
-This project work by compiling using Notepad++ for Raylib and adding the following files to the gcc command :
+# Building on Windows
+This project works by compiling using Notepad++ for Raylib and adding the following files to the gcc command :
 ```tetris-struct.c tetris-graph.c```
\ No newline at end of file

tetris-main.c

@@ -46,6 +46,10 @@ int main(void){
         if(IsKeyPressed(KEY_RIGHT) && canMoveHztl(grid, p, 1)){
             movePieceHztl(p, 1);
         }
+        if(IsKeyDown(KEY_DOWN) && canMoveDown(grid, p, 1)){
+            movePieceVert(p, 1);
+        }
+
         if(IsKeyPressed(KEY_Q)){    // A en AZERTY
             while(rotateBorderLeft(p, false)){
                 movePieceHztl(p, 1);

tetris-struct.c

@@ -288,6 +288,17 @@ bool canMoveHztl(Grid g, Piece p, int moveNum){
     }
     return true;
 }
+bool canMoveDown(Grid g, Piece p, int moveNum){
+    for(int i = 0; i < p.size; i++){
+        int x = p.squares[i]->posX;
+        int y = p.squares[i]->posY + moveNum;
+
+        if(y < 0 || y >= g.height || g.grid[x][y] != NULL){
+            return false;
+        }
+    }
+    return true;
+}
 
 void moveSquareHztl(Square sq, int shift){
     sq->posX += shift;

tetris-struct.h

@@ -59,6 +59,7 @@ void displaySquare(Square sq, int pIndex, int pListIndex);
 void displayPiece(Piece p, int pListIndex);
 void displayPieceList(Piece* pList, int size);
 
+bool canMoveDown(Grid g, Piece p, int moveNum);
 void moveSquareVert(Square sq, int shift);
 void movePieceVert(Piece piece, int shift);