From ec4f70340e0f9a3a867aef7d39df19457bec1d3e Mon Sep 17 00:00:00 2001
From: Kae <80987908+Novaenia@users.noreply.github.com>
Date: Sat, 19 Aug 2023 18:26:52 +1000
Subject: Allow overriding placed collision kind ("""overground""") from
 world.placeMaterial

---
 source/game/StarTileModification.cpp | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

(limited to 'source/game/StarTileModification.cpp')

diff --git a/source/game/StarTileModification.cpp b/source/game/StarTileModification.cpp
index a20ae1e..0bcb4dc 100644
--- a/source/game/StarTileModification.cpp
+++ b/source/game/StarTileModification.cpp
@@ -4,7 +4,17 @@
 namespace Star {
 
 DataStream& operator>>(DataStream& ds, PlaceMaterial& tileMaterialPlacement) {
-  ds.read(tileMaterialPlacement.layer);
+  uint8_t layer;
+  ds.read(layer);
+  if (layer > 1) {
+    tileMaterialPlacement.layer = TileLayer::Foreground;
+    tileMaterialPlacement.collisionOverride = (TileCollisionOverride)(layer - 1);
+  }
+  else {
+    tileMaterialPlacement.layer = (TileLayer)layer;
+    tileMaterialPlacement.collisionOverride = TileCollisionOverride::None;
+  }
+
   ds.read(tileMaterialPlacement.material);
   ds.read(tileMaterialPlacement.materialHueShift);
 
@@ -12,7 +22,14 @@ DataStream& operator>>(DataStream& ds, PlaceMaterial& tileMaterialPlacement) {
 }
 
 DataStream& operator<<(DataStream& ds, PlaceMaterial const& tileMaterialPlacement) {
-  ds.write(tileMaterialPlacement.layer);
+  if (tileMaterialPlacement.collisionOverride != TileCollisionOverride::None
+    && tileMaterialPlacement.layer == TileLayer::Foreground) {
+    uint8_t layer = (uint8_t)tileMaterialPlacement.collisionOverride;
+    ds.write(++layer);
+  }
+  else
+    ds.write(tileMaterialPlacement.layer);
+
   ds.write(tileMaterialPlacement.material);
   ds.write(tileMaterialPlacement.materialHueShift);
 
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