From d844919907573cfd7dd3f602026e60e6d4ff27d2 Mon Sep 17 00:00:00 2001
From: daniel-Jones <daniel@danieljon.es>
Date: Thu, 6 Sep 2018 22:38:55 +0930
Subject: cell generation improved

added conversions for 1d->2d mapping. auto-reveals all cells now. generates random mines.
---
 cell.cpp          |  5 +++++
 cell.h            |  1 +
 constants.cpp     |  3 ++-
 constants.h       |  1 +
 qtminesweeper.cpp | 51 +++++++++++++++++++++++++++++++++++++++------------
 qtminesweeper.h   |  3 +++
 6 files changed, 51 insertions(+), 13 deletions(-)

diff --git a/cell.cpp b/cell.cpp
index cfedeb6..2648860 100644
--- a/cell.cpp
+++ b/cell.cpp
@@ -49,3 +49,8 @@ void cell::reveal()
 {
 	setflags((int)flags ^ (int)REVEALED);
 }
+
+void cell::makemine()
+{
+	setflags((int)flags | (int)MINE);
+}
diff --git a/cell.h b/cell.h
index 70b37d3..8b98496 100644
--- a/cell.h
+++ b/cell.h
@@ -34,6 +34,7 @@ class cell : public square
 		void flagcheck();
 		int getflags();
 		void reveal();
+		void makemine();
 
 	private:
 		enum flagtype flags;
diff --git a/constants.cpp b/constants.cpp
index 41d7a24..4f012ba 100644
--- a/constants.cpp
+++ b/constants.cpp
@@ -2,6 +2,7 @@
 
 const int BORDEROFFSET = 10;
 const int GRIDWIDTH = 200;
-const int GRIDHEIGHT = 600;
+const int GRIDHEIGHT = 200;
 const int SQUARESIZE = 20;
 const int NUMBEROFCELLS = ((GRIDWIDTH*GRIDHEIGHT)/SQUARESIZE)/SQUARESIZE;
+const int NUMBEROFMINES = NUMBEROFCELLS/SQUARESIZE*1.5;
diff --git a/constants.h b/constants.h
index b1201c0..34954d9 100644
--- a/constants.h
+++ b/constants.h
@@ -22,5 +22,6 @@ extern const int GRIDWIDTH;
 extern const int GRIDHEIGHT;
 extern const int SQUARESIZE;
 extern const int NUMBEROFCELLS;
+extern const int NUMBEROFMINES;
 
 #endif
diff --git a/qtminesweeper.cpp b/qtminesweeper.cpp
index 0108850..4998f01 100644
--- a/qtminesweeper.cpp
+++ b/qtminesweeper.cpp
@@ -15,13 +15,16 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
 #include <QApplication>
-#include <math.h>
 #include "qtminesweeper.h"
 
 qtminesweeper::qtminesweeper()
 {
 	this->setStyleSheet("background-color: black;");
+	/* seed rand */
+	srand(time(NULL));
 	/* setup function */
 	blackpen = QPen(Qt::black);
 	whitepen = QPen(Qt::white);
@@ -33,12 +36,11 @@ qtminesweeper::qtminesweeper()
 	cells.reserve(NUMBEROFCELLS);
 	for (int c = 0; c < NUMBEROFCELLS; c++)
 	{
-		int f;
-		f = cell::MINE;
-		cell tmp(f);
-		cells.push_back(tmp);
+		cells.push_back(generatecell());
 	}
 	generatecellpos();
+	generatemines();
+	revealallcells();
 
 	cursor.movetogridpos(0, 0);
 }
@@ -86,7 +88,7 @@ void qtminesweeper::drawcells(QPainter *painter)
 	{
 		int tf = cells[c].getflags();
 		f = "";
-		if (tf & cell::REVEALED) f = "R";
+		if (tf & cell::REVEALED && tf & cell::MINE) f = "M";
 		painter->drawText(cells[c].getrealx()+(SQUARESIZE/4),
 				cells[c].getrealy()+(SQUARESIZE/2+5),
 				f);
@@ -157,16 +159,41 @@ void qtminesweeper::revealcell(int index)
 {
 	cells[index].reveal();
 }
+
 int qtminesweeper::getcellindexfrompos(int gridx, int gridy)
 {
-	std::vector<int>::size_type c;
-	for (c = 0; c < cells.size(); c++)
+	return gridx + GRIDWIDTH/SQUARESIZE*gridy;
+}
+
+cell qtminesweeper::generatecell()
+{
+	int flags = 0;
+	cell tmp(flags);
+	return tmp;
+}
+
+void qtminesweeper::generatemines()
+{
+	// rand() %NUMBEROFCELLS
+	int c, randcell;
+	while (c < NUMBEROFMINES)
 	{
-		if (cells[c].getgridx() == gridx &&
-		    cells[c].getgridy() == gridy)
+		randcell = rand() %NUMBEROFCELLS;
+		if (cells[randcell].getflags() & cell::MINE)
+			break;
+		else
 		{
-			return c;
+			cells[randcell].makemine();
+			c++;
 		}
 	}
-	return -1;
+}
+
+void qtminesweeper::revealallcells()
+{
+	unsigned int c = 0;
+	for(c = 0; c < cells.size(); c++)
+	{
+		cells[c].reveal();
+	}
 }
diff --git a/qtminesweeper.h b/qtminesweeper.h
index 84aa29f..16b5200 100644
--- a/qtminesweeper.h
+++ b/qtminesweeper.h
@@ -45,6 +45,9 @@ class qtminesweeper : public QWidget
 		void generatecellpos();
 		void revealcell(int index);
 		int getcellindexfrompos(int gridx, int gridy);
+		cell generatecell();
+		void generatemines();
+		void revealallcells();
 
 		selector cursor;
 		std::vector<cell> cells;
-- 
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