From 21d853ac27ed3751087750051dd97e68a0502c3b Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Fri, 14 Apr 2023 11:42:12 +0200
Subject: Simplify 5.1.3 affected events with new instruction pair.

if_space <condition1>
or_space <condition2>

Gets compiled to:

if can_vm_place(1, s => <condition1>)
space 1 <condition1>
else
space 1 <condition2>
endif

Interleaving if/else and space/endspace is safe.
---
 tools/gencode.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'tools')

diff --git a/tools/gencode.js b/tools/gencode.js
index 30f12c9..df8f0f1 100644
--- a/tools/gencode.js
+++ b/tools/gencode.js
@@ -43,6 +43,17 @@ for (let line of fs.readFileSync("events.txt", "utf-8").split("\n")) {
 		console.log("// SHADED " + line[1])
 		break
 
+	case "if_space":
+		emit([ "if", "()=>can_vm_space(1,(s)=>" + line.slice(1).join(" ") + ")" ])
+		emit([ "space", true, 1, 1, "(s)=>" + line.slice(1).join(" ") ])
+		emit([ "else" ])
+		break
+
+	case "or_space":
+		emit([ "space", true, 1, 1, "(s)=>" + line.slice(1).join(" ") ])
+		emit([ "endif" ])
+		break
+
 	case "space_no_undo":
 		emit([ "space", false, line[1], line[1], "(s)=>" + line.slice(2).join(" ") ])
 		break
-- 
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