From 92c104d8a2ba69db1f59890d2f62019186aece05 Mon Sep 17 00:00:00 2001
From: tomsmeding <hallo@tomsmeding.nl>
Date: Sat, 12 Sep 2015 09:52:00 +0200
Subject: almost-working engine! :tada:

---
 tetris/blocks.prn | 73 +++++++++++++++++++++++++++++++++----------------------
 1 file changed, 44 insertions(+), 29 deletions(-)

(limited to 'tetris/blocks.prn')

diff --git a/tetris/blocks.prn b/tetris/blocks.prn
index 0eb91f5..17d783e 100644
--- a/tetris/blocks.prn
+++ b/tetris/blocks.prn
@@ -1,41 +1,56 @@
 7 "b_nblocks" store
 
-15 23 71 51 54 99 114
+15 4369 15 4369  4 mkarrayp  #I
+23 547 116 785  4 mkarrayp  #L
+71 802 113 275  4 mkarrayp  #J
+51 51 51 51  4 mkarrayp  #O
+54 561 54 561  4 mkarrayp  #S
+99 306 99 306  4 mkarrayp  #Z
+114 610 624 562  4 mkarrayp  #T
 b_nblocks mkarrayp "b_blocks" store
 
- 6  3  4  7  2  1   5
+6 3 4 7 2 1 5  #the tetris standard colours -- sort of
 b_nblocks mkarrayp "b_blockclrs" store
 
-@defun "b_getblock" { #arg: block idx [0..(b_nblocks-1)]
-	"b_blocks" swapoutvar swap arridx swap "b_blocks" gstore
+
+#returns the bits for the specified block
+@defun "b_getblock" { #args: blockidx blockrot (idx in [0..(b_nblocks-1)], rot in [0..3])
+	"r" store
+	"i" store
+	#"b_blocks" swapoutvar swap arridx swap "b_blocks" gstore
+	"b_blocks" swapoutvar
+	i arridx
+	swap "b_blocks" gstore
+	r arridx
+	swap pop
 }
 
-@defun "b_drawblock" { #args: x y blockidx
-	dup "blockidx" store
-	b_getblock "blockbits" store
+@defun "b_drawblock" { #args: x y blockidx blockrot
+	"blockrot" store
+	"blockidx" store
+	blockidx blockrot b_getblock "blockbits" store
 	"y" store
 	"x" store
 
-	blockbits 16 % "row1" store
-	blockbits 16 / "row2" store
-
-	x "xx" store
-	row1 while
-		row1 2 % if
-			xx y blockidx io_gsquare
-		end
-		xx 1 + "xx" store
-		row1 2 / "row1" store
-	row1 end
-
-	y 1 + "y" store
-
-	x "xx" store
-	row2 while
-		row2 2 % if
-			xx y blockidx io_gsquare
-		end
-		xx 1 + "xx" store
-		row2 2 / "row2" store
-	row2 end
+	blockbits while
+
+		0 "i" store
+		i 4 < while
+			blockbits 1 & if
+				x i + y blockidx io_gsquare
+			end
+			i 1 + "i" store
+			blockbits 2 / "blockbits" store
+		i 4 < end
+
+		y 1 + "y" store
+
+	blockbits end
+}
+
+@defun "b_undrawblock" { #args: x y blockidx blockrot
+	io_blockchar "temp" store
+	" " "io_blockchar" gstore
+	b_drawblock
+	temp "io_blockchar" gstore
 }
-- 
cgit v1.2.3-54-g00ecf