From e31298da0ada6bfcbb6f71e3c27d9eb2825e7e27 Mon Sep 17 00:00:00 2001
From: Frederick Yin <fkfd@fkfd.me>
Date: Wed, 1 Jun 2022 15:33:06 +0800
Subject: Game points

---
 sirtet.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

(limited to 'sirtet.c')

diff --git a/sirtet.c b/sirtet.c
index 1cbe475..9e9d0b2 100644
--- a/sirtet.c
+++ b/sirtet.c
@@ -14,12 +14,16 @@ void clearmap(char** map, int mapH, int mapW) {
     }
 }
 
-void clearfull(char** map, int mapH, int mapW) {
+int clearfull(char** map, int mapH, int mapW) {
     // if a row or column is full, clear it
     // if a row and a column are full at the same time, clear both
     // which is why we need to scan all rows/columns before actually clearing them
+    // returns total number of blocks cleared
     bool* rows_to_clear = malloc(mapH * sizeof(bool));
     bool* cols_to_clear = malloc(mapW * sizeof(bool));
+    int rtc_count = 0;
+    int ctc_count = 0;
+    // scan all rows and columns
     for (int r = 0; r < mapH; r++) {
         bool clear = true;
         for (int c = 0; c < mapW; c++) {
@@ -36,20 +40,24 @@ void clearfull(char** map, int mapH, int mapW) {
         }
         cols_to_clear[c] = clear;
     }
+    // clear rows and columns marked true in `{rows,columns}_to_clear`
     for (int r = 0; r < mapH; r++) {
         if (rows_to_clear[r]) {
+            rtc_count++;
             for (int c = 0; c < mapW; c++)
                 map[r][c] = ' ';
         }
     }
     for (int c = 0; c < mapW; c++) {
         if (cols_to_clear[c]) {
+            ctc_count++;
             for (int r = 0; r < mapW; r++)
                 map[r][c] = ' ';
         }
     }
     free(rows_to_clear);
     free(cols_to_clear);
+    return (rtc_count * mapW + ctc_count * mapH - rtc_count * ctc_count);
 }
 
 void sirtet() {
@@ -65,9 +73,10 @@ void sirtet() {
     struct piece** hand = malloc(P * sizeof(struct piece*));
     srand(time(NULL));
     clearmap(map, H, W);
+    refillpieces(hand, P);
 
     bool over = false;
-    refillpieces(hand, P);
+    int points = 0;
 
     // initialize ncurses
     setlocale(LC_ALL, "");
@@ -87,6 +96,10 @@ void sirtet() {
         printrect(0, 0, H, W);
         printmap(map, 1, 1, H, W);
 
+        // display game stats
+        mvprintw(1, 2 * W + 8, "Points: %d", points);
+        refresh();
+
         // select piece and position
         bool confirmed = false;
 
@@ -156,11 +169,14 @@ void sirtet() {
         }
 
         place(map, pc, row, col);
+        points += pc->points;
         freepiece(pc);
         hand[pc_idx] = NULL;
 
         // clear full rows and columns
-        clearfull(map, H, W);
+        int blocks_cleared = clearfull(map, H, W);
+        points += blocks_cleared;
+
         // if player has no piece left, refill
         bool pieces_left = false;
         for (int i = 0; i < P; i++) {
-- 
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