Moved demo stuff into Demo.h and Demo.cpp. Added ability to place pieces from terminal, though positional data hasn't been implemented yet.

Demo.cpp

@@ -0,0 +1,91 @@
+#include "Demo.h"
+#include "Pieces.h"
+
+#include <curses.h>
+#include <set>
+#include <string>
+#include <vector>
+
+void DemoPieces()
+{
+	std::set rotations = {
+		Rotation::ROTATION_NONE,
+		Rotation::ROTATION_90,
+		Rotation::ROTATION_180,
+		Rotation::ROTATION_270,
+	};
+	for(auto rotation : rotations)
+	{
+		clear();
+
+		int x, y;
+
+		// Always same distance apart:
+		x = 10;
+		y = 2;
+		for(auto i = 0; i < 8; ++i)
+		{
+			PieceData data = pieces.at(i);
+			data = RotatePieceData(data, rotation);
+			PD_DrawPiece(data, y, x, i);
+			mvaddstr(y-1, x, "Piece");
+			mvaddstr(y-1, x + 6, std::to_string(i + 1).c_str());
+			x += 12;
+		}
+
+		// Always same width apart:
+		x = 2;
+		y = 10;
+		for(auto i = 0; i < 8; ++i)
+		{
+			PieceData data = pieces.at(i);
+			data = RotatePieceData(data, rotation);
+			PD_DrawPiece(data, y, x, i);
+			x += PD_PieceWidth(data) * 2 + 2;
+		}
+		// Always same height apart, sharing first piece with same-width row:
+		x = 2;
+		y = 10;
+		{
+			auto data = pieces.at(0);
+			data = RotatePieceData(data, rotation);
+			y += PD_PieceHeight(data) + 1;
+		}
+		for(auto i = 1; i < 8; ++i) // skip first
+		{
+			PieceData data = pieces.at(i);
+			data = RotatePieceData(data, rotation);
+			PD_DrawPiece(data, y, x, i);
+			y += PD_PieceHeight(data) + 1;
+		}
+
+		getch();
+	}
+
+	std::vector<Flip> flips = {
+		Flip::FLIP_NONE,
+		Flip::FLIP_HORIZONTAL,
+		Flip::FLIP_HORIZONTAL,
+		Flip::FLIP_VERTICAL,
+		Flip::FLIP_VERTICAL,
+	};
+
+	std::vector<PieceData> piece_data_to_flip;
+	for(size_t p = 0; p < pieces.size(); ++p)
+		piece_data_to_flip.push_back(pieces.at(p));
+	for(const auto &flip : flips)
+	{
+		clear();
+		int y = 2;
+		int i = 0;
+		for(auto &data : piece_data_to_flip)
+		{
+			FlipPieceData(data, flip);
+			PD_DrawPiece(data, y, 2, i++);
+			y += PD_PieceHeight(data) + 2;
+		}
+		getch();
+	}
+
+	move(8, 2);
+}

Demo.h

@@ -0,0 +1,6 @@
+#ifndef APAD_DEMO_H
+#define APAD_DEMO_H
+
+void DemoPieces();
+
+#endif

Makefile

@@ -1,6 +1,6 @@
-build/apad: main.cpp Pieces.cpp Pieces.h
+build/apad: main.cpp Pieces.cpp Pieces.h Demo.cpp Demo.h
 	mkdir -p build
-	clang++ -g -O0 -std=c++17 -o $@ main.cpp Pieces.cpp -lncurses
+	clang++ -g -O0 -std=c++17 -o $@ main.cpp Pieces.cpp Demo.cpp -lncurses
 
 clean:
 	rm build/apad

README

@@ -0,0 +1,31 @@
+# Grid:
+[0  1  2  3  4  5 ]
+[6  7  8  9  10 11]
+[12 13 14 15 16 17 18]
+[19 20 21 22 23 24 25]
+[26 27 28 29 30 31 32]
+[33 34 35 36 37 38 39]
+[40 41 42]
+
+
+# Order of Operations:
+ When rendering, always perform the actions in this order:
+ 1. Flips, if set
+ 2. Rotation
+
+
+# All Piece Placement Format:
+ Assumes you're placing, in order, all pieces
+ 2 bits for flip, 2 bits for rotation, 6 bits for position, 8 times.
+ 10 * 8 = 80 bits.
+
+
+# TODO(dev):
+# Individual Piece Placement Format:
+ 3 bits for piece number (#0 - #7)
+ 2 bits for flip
+  (first bit = horizontal flip on)
+  (second bit = vertical flip on)
+ 2 bits for rotation
+  (none, 90, 180, 270)
+ 6 bits for position

main.cpp

@@ -1,3 +1,4 @@
+#include "Demo.h"
 #include "Pieces.h"
 
 #include <curses.h>
@@ -10,8 +11,7 @@
 static void finish(int sig);
 void init_colors();
 
-// DEBUG:
+void PlacePiece(Piece piece, const std::vector<Flip> &flips, Rotation rotation, int y, int x);
-void DemoPieces();
 
 int main(int argc, char *argv[])
 {
@@ -33,16 +33,33 @@ int main(int argc, char *argv[])
 
 	// for each piece passed in, render it:
 	{
+		int x = 1;
 		int y = 1;
+		auto count = 0;
 		for(auto input = 1; input < argc; ++input)
 		{
 			try {
-				Piece piece = 0b111 & std::atoi(argv[input]);
+				unsigned long input_val = std::atoi(argv[input]);
-				PD_DrawPiece(pieces.at(piece), y, 1);
+				Piece piece = 0b111 & input_val;
-				y += PD_PieceHeight(pieces.at(piece)) + 1;
+				Flip horizontal = (0b1000 & input_val) ? Flip::FLIP_HORIZONTAL : Flip::FLIP_NONE;
+				Flip vertical = (0b10000 & input_val) ? Flip::FLIP_VERTICAL : Flip::FLIP_NONE;
+				Rotation rotation = static_cast<Rotation>((0b1100000 & input_val) >> 5);
+				PlacePiece(piece,
+				           { horizontal, vertical },
+				           rotation,
+				           y,
+				           x);
+				// y += PD_PieceHeight(pieces.at(piece)) + 1;
+				y += 5;
 			} catch(const std::exception &e) {
 				mvaddstr(y, 1, "std::atoi error");
-				y += 2;
+				y += 3;
+			}
+			if(++count > 7)
+			{
+				count = 0;
+				y = 1;
+				x += 10;
 			}
 		}
 	}
@@ -85,86 +102,14 @@ void init_colors()
 	init_pair(7, COLOR_WHITE,   COLOR_BLACK);
 }
 
-void DemoPieces()
+void PlacePiece(Piece piece, const std::vector<Flip> &flips, Rotation rotation, int y, int x)
 {
-	std::set rotations = {
+	PieceData data = pieces.at(piece);
-		Rotation::ROTATION_NONE,
-		Rotation::ROTATION_90,
-		Rotation::ROTATION_180,
-		Rotation::ROTATION_270,
-	};
-	for(auto rotation : rotations)
-	{
-		clear();
 
-		int x, y;
+	for(Flip flip : flips)
+		FlipPieceData(data, flip);
 
-		// Always same distance apart:
+	data = RotatePieceData(data, rotation);
-		x = 10;
-		y = 2;
-		for(auto i = 0; i < 8; ++i)
-		{
-			PieceData data = pieces.at(i);
-			data = RotatePieceData(data, rotation);
-			PD_DrawPiece(data, y, x, i);
-			mvaddstr(y-1, x, "Piece");
-			mvaddstr(y-1, x + 6, std::to_string(i + 1).c_str());
-			x += 12;
-		}
 
-		// Always same width apart:
+	PD_DrawPiece(data, y, x, piece);
-		x = 2;
-		y = 10;
-		for(auto i = 0; i < 8; ++i)
-		{
-			PieceData data = pieces.at(i);
-			data = RotatePieceData(data, rotation);
-			PD_DrawPiece(data, y, x, i);
-			x += PD_PieceWidth(data) * 2 + 2;
-		}
-		// Always same height apart, sharing first piece with same-width row:
-		x = 2;
-		y = 10;
-		{
-			auto data = pieces.at(0);
-			data = RotatePieceData(data, rotation);
-			y += PD_PieceHeight(data) + 1;
-		}
-		for(auto i = 1; i < 8; ++i) // skip first
-		{
-			PieceData data = pieces.at(i);
-			data = RotatePieceData(data, rotation);
-			PD_DrawPiece(data, y, x, i);
-			y += PD_PieceHeight(data) + 1;
-		}
-
-		getch();
-	}
-
-	std::vector<Flip> flips = {
-		Flip::FLIP_NONE,
-		Flip::FLIP_HORIZONTAL,
-		Flip::FLIP_HORIZONTAL,
-		Flip::FLIP_VERTICAL,
-		Flip::FLIP_VERTICAL,
-	};
-
-	std::vector<PieceData> piece_data_to_flip;
-	for(size_t p = 0; p < pieces.size(); ++p)
-		piece_data_to_flip.push_back(pieces.at(p));
-	for(const auto &flip : flips)
-	{
-		clear();
-		int y = 2;
-		int i = 0;
-		for(auto &data : piece_data_to_flip)
-		{
-			FlipPieceData(data, flip);
-			PD_DrawPiece(data, y, 2, i++);
-			y += PD_PieceHeight(data) + 2;
-		}
-		getch();
-	}
-
-	move(8, 2);
 }