From 00a04c2929bdc8f8f4bf7d5d8cf413ebfb3cd006 Mon Sep 17 00:00:00 2001
From: tslil <tslil@posteo.de>
Date: Thu, 11 Feb 2021 21:04:42 -0500
Subject: Don't generate header for training data + tweaks

For some reason it would seem that moving flats to a lower value and
increasing the proximity between caps and top flats improves
acquisition. Still not great, but every bit counts.
---
 src/pptdb.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

(limited to 'src')

diff --git a/src/pptdb.c b/src/pptdb.c
index 286678d..8684c47 100644
--- a/src/pptdb.c
+++ b/src/pptdb.c
@@ -53,18 +53,18 @@ write_input(const int dx, const int dy, const uint8_t swap) {
 				val = 0;
 				if (COUNT_AT(k)>depth) {
 					if (depth == 0) {
-						// Top layer of stacks is handled differently to indicate
+						// Top layer of stacks is handled differently to indicate
 						// stone type
 						if (STONE_AT(k) == STONE_STANDING) {
 							val = (colours[k] & 1) ? +0.25 : -0.25;
 						} else if (STONE_AT(k) == STONE_CAPSTONE) {
 							val = (colours[k] & 1) ? +1.00 : -1.00;
 						} else {
-							val = (colours[k] & 1) ? +0.50 : -0.50;
+							val = (colours[k] & 1) ? +0.75 : -0.75;
 						}
 					} else {
 						// Layers underneath
-						val = (colours[k] & (1<<depth)) ? +0.50 : -0.50;
+						val = (colours[k] & (1<<depth)) ? +0.75 : -0.75;
 					}
 				}
 				fprintf(training_fh,"%.2f,", val);
@@ -136,7 +136,7 @@ parse_line(const char *pt, const ssize_t read) {
 		}
 		// Generate training data, not too early in the game, all
 		// orientations
-		if (generate && ply + 2 >= total_plies) {
+		if (generate && ply + 3 >= total_plies) {
 #define RANDPM1 ((rand()&1)?-1:+1)
 			write_input(RANDPM1, RANDPM1, rand()&1);
 		}
@@ -181,15 +181,6 @@ int main(int argc, char **argv) {
 		snprintf(td_fn, 64, "data/training-%d.csv",size);
 		training_fh = fopen(td_fn, "w");
 		if (training_fh == NULL) exit(EXIT_FAILURE);
-
-		// Write header
-		fputs("\"White flats\",\"Black flats\",",training_fh);
-		for (int depth = 0; depth < max_depth; depth++) {
-			for (int k = 0; k < size*size; k++) {
-				fprintf(training_fh,"\"Stack %d %d\",",depth,k);
-			}
-		}
-		fputs("\"Outcome\"\n",training_fh);
 	} else generate=0;
 
 	while ((read = getline(&line, &len, playtak_fh)) != -1) {
-- 
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