From 9df9b163852cd5fd2462e1dec25ad4b00ca12a8c Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Thu, 23 Mar 2023 16:22:45 +0100
Subject: add scripts for converting tiles to separate png images for tilemap
 editing

---
 scripts/tiled.mk.awk  | 16 ++++++++++++++++
 scripts/tilemap2tiled | 42 ++++++++++++++++++++++++++++++++++++++++++
 src/static/.gitignore |  2 ++
 src/static/makefile   |  9 ++++++++-
 4 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100755 scripts/tiled.mk.awk
 create mode 100755 scripts/tilemap2tiled

diff --git a/scripts/tiled.mk.awk b/scripts/tiled.mk.awk
new file mode 100755
index 0000000..7728cf3
--- /dev/null
+++ b/scripts/tiled.mk.awk
@@ -0,0 +1,16 @@
+#!/bin/awk -f
+BEGIN {
+	targets=""
+	print "tiled_dir:\n\tmkdir -p tiled"
+}
+1 {
+	for (i = 0; i < $2; i++) {
+		target = sprintf("tiled/%s_%02d.png", $1,i)
+		printf target" "
+		targets = targets" "target
+	}
+	printf "&: %s.bin\n",$1
+	printf "\t$(TILEMAP2TILED) $<\n\n"
+}
+END { print "tiled: tiled_dir"targets }
+
diff --git a/scripts/tilemap2tiled b/scripts/tilemap2tiled
new file mode 100755
index 0000000..905f801
--- /dev/null
+++ b/scripts/tilemap2tiled
@@ -0,0 +1,42 @@
+#!/bin/python3
+# read packed tilemap file from argv[1] and output pngs
+
+import sys
+import io
+import struct
+from PIL import Image
+
+color_map = (
+	(0x00, 0x00, 0x00),
+	(0x24, 0x24, 0x24),
+	(0x49, 0x49, 0x49),
+	(0x6d, 0x6d, 0x6d),
+	(0x92, 0x92, 0x92),
+	(0xb6, 0xb6, 0xb6),
+	(0xda, 0xda, 0xda),
+	(0xff, 0xff, 0xff),
+)
+
+img = Image.new('RGB', (16, 16))
+
+buf = ""
+with open(sys.argv[1], "rb") as f:
+	buf = f.read()
+
+i = 0
+sprite_idx = 0
+for x in range(0, len(buf), 2):
+	word = 0x0000
+	word |= buf[x]
+	word |= buf[x+1] << 8
+
+	for p in range(5):
+		img.putpixel((i % 16, i // 16), color_map[(word >> (p * 3)) & 0b111])
+		i += 1
+		if i > 0xff:
+			i = 0
+			img.save(f"tiled/{sys.argv[1].replace('.bin','')}_{str(sprite_idx).zfill(2)}.png", format="PNG")
+			img = Image.new('RGB', (16, 16))
+			sprite_idx += 1
+			break
+
diff --git a/src/static/.gitignore b/src/static/.gitignore
index f24ab90..348c5b9 100644
--- a/src/static/.gitignore
+++ b/src/static/.gitignore
@@ -2,3 +2,5 @@
 **/*.meta
 manifest.txt
 tilemap.h
+tiled/*
+tiled.mk
diff --git a/src/static/makefile b/src/static/makefile
index d84e31e..6025a55 100644
--- a/src/static/makefile
+++ b/src/static/makefile
@@ -1,6 +1,8 @@
 XXD := xxd
 TILEPACK := ../../scripts/tilepack
 MANIFEST2HEADER := ../../scripts/manifest2header.awk
+TILEDMK := ../../scripts/tiled.mk.awk
+TILEMAP2TILED := ../../scripts/tilemap2tiled
 
 INPUT += air.hex \
 			shop.hex \
@@ -31,5 +33,10 @@ tilemap.h: manifest.txt
 	$(MANIFEST2HEADER) $< > $@
 	cat $(USER_META) >> $@
 
+tiled.mk: manifest.txt
+	$(TILEDMK) < $< > $@
+
+include tiled.mk
+
 clean:
-	$(RM) $(OUT_BIN) $(OUT_META) manifest.txt tilemap.h tilemap.bin
+	$(RM) -r $(OUT_BIN) $(OUT_META) manifest.txt tilemap.h tilemap.bin tiled.mk tiled
-- 
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