(svn r18842) -Codechange: Rename SPRITE_MODIFIER_USE_OFFSET to SPRITE_MODIFIER_CUSTOM_SPRITE, invert its meaning, and also use it for industry/house layouts instead of IS_CUSTOM_SPRITE().

9 files changed, 20 insertions, 23 deletions

diff --git a/src/newgrf.cpp b/src/newgrf.cpp
index 45d9fab37..5e4a5abdc 100644
--- a/src/newgrf.cpp
+++ b/src/newgrf.cpp
@@ -1139,8 +1139,9 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, byte
 					dts->ground.pal = grf_load_word(&buf);
 					if (dts->ground.sprite == 0) continue;
 					if (HasBit(dts->ground.pal, 15)) {
+						/* Use sprite from Action 1 */
 						ClrBit(dts->ground.pal, 15);
-						SetBit(dts->ground.sprite, SPRITE_MODIFIER_USE_OFFSET);
+						SetBit(dts->ground.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE);
 					}
 
 					MapSpriteMappingRecolour(&dts->ground);
@@ -1160,10 +1161,11 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, byte
 						dtss->image.sprite = grf_load_word(&buf);
 						dtss->image.pal = grf_load_word(&buf);
 
-						/* Remap flags as ours collide */
 						if (HasBit(dtss->image.pal, 15)) {
 							ClrBit(dtss->image.pal, 15);
-							SetBit(dtss->image.sprite, SPRITE_MODIFIER_USE_OFFSET);
+						} else {
+							/* Use sprite from Action 1 (yes, this is inverse to above) */
+							SetBit(dtss->image.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE);
 						}
 
 						MapSpriteMappingRecolour(&dtss->image);
@@ -2937,6 +2939,7 @@ static void NewSpriteGroup(byte *buf, size_t len)
 							SpriteID sprite = _cur_grffile->spriteset_start + spriteset * num_spriteset_ents;
 							SB(group->dts->ground.sprite, 0, SPRITE_WIDTH, sprite);
 							ClrBit(group->dts->ground.pal, 15);
+							SetBit(group->dts->ground.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE);
 						}
 					}
 
@@ -2964,6 +2967,7 @@ static void NewSpriteGroup(byte *buf, size_t len)
 								SpriteID sprite = _cur_grffile->spriteset_start + spriteset * num_spriteset_ents;
 								SB(seq->image.sprite, 0, SPRITE_WIDTH, sprite);
 								ClrBit(seq->image.pal, 15);
+								SetBit(seq->image.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE);
 							}
 						}
 
diff --git a/src/newgrf_commons.cpp b/src/newgrf_commons.cpp
index f5be80d3b..5d6abd15a 100644
--- a/src/newgrf_commons.cpp
+++ b/src/newgrf_commons.cpp
@@ -339,14 +339,15 @@ void DrawTileSeq(const TileInfo *ti, const DrawTileSprites *dts, TransparencyOpt
 		if (GB(dtss->image.sprite, 0, SPRITE_WIDTH) == 0) continue;
 
 		SpriteID image = dtss->image.sprite;
-		SpriteID pal   = dtss->image.pal;
 
 		/* Stop drawing sprite sequence once we meet a sprite that doesn't have to be opaque */
 		if (IsInvisibilitySet(to) && !HasBit(image, SPRITE_MODIFIER_OPAQUE)) return;
 
-		if (IS_CUSTOM_SPRITE(image)) image += stage;
+		if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
+			image += stage;
+		}
 
-		pal = SpriteLayoutPaletteTransform(image, pal, default_palette);
+		SpriteID pal = SpriteLayoutPaletteTransform(image, dtss->image.pal, default_palette);
 
 		if ((byte)dtss->delta_z != 0x80) {
 			AddSortableSpriteToDraw(
diff --git a/src/newgrf_house.cpp b/src/newgrf_house.cpp
index 37a85fb4f..ab28d5093 100644
--- a/src/newgrf_house.cpp
+++ b/src/newgrf_house.cpp
@@ -415,7 +415,7 @@ static void DrawTileLayout(const TileInfo *ti, const TileLayoutSpriteGroup *grou
 	SpriteID image = dts->ground.sprite;
 	SpriteID pal   = dts->ground.pal;
 
-	if (IS_CUSTOM_SPRITE(image)) image += stage;
+	if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) image += stage;
 
 	if (GB(image, 0, SPRITE_WIDTH) != 0) {
 		DrawGroundSprite(image, GroundSpritePaletteTransform(image, pal, palette));
diff --git a/src/newgrf_industrytiles.cpp b/src/newgrf_industrytiles.cpp
index 63a555ce5..ac1d3be8e 100644
--- a/src/newgrf_industrytiles.cpp
+++ b/src/newgrf_industrytiles.cpp
@@ -173,7 +173,7 @@ static void IndustryDrawTileLayout(const TileInfo *ti, const TileLayoutSpriteGro
 	SpriteID image = dts->ground.sprite;
 	SpriteID pal   = dts->ground.pal;
 
-	if (IS_CUSTOM_SPRITE(image)) image += stage;
+	if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) image += stage;
 
 	if (GB(image, 0, SPRITE_WIDTH) != 0) {
 		/* If the ground sprite is the default flat water sprite, draw also canal/river borders
diff --git a/src/newgrf_station.cpp b/src/newgrf_station.cpp
index 992d5d8aa..94adbe869 100644
--- a/src/newgrf_station.cpp
+++ b/src/newgrf_station.cpp
@@ -900,7 +900,7 @@ bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID
 
 	SpriteID image = sprites->ground.sprite;
 	SpriteID pal = sprites->ground.pal;
-	if (HasBit(image, SPRITE_MODIFIER_USE_OFFSET)) {
+	if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
 		image += GetCustomStationGroundRelocation(statspec, NULL, INVALID_TILE);
 		image += rti->custom_ground_offset;
 	} else {
diff --git a/src/sprite.cpp b/src/sprite.cpp
index 574cc1d31..5dd7d7f00 100644
--- a/src/sprite.cpp
+++ b/src/sprite.cpp
@@ -36,7 +36,7 @@ void DrawCommonTileSeq(const TileInfo *ti, const DrawTileSprites *dts, Transpare
 		/* Stop drawing sprite sequence once we meet a sprite that doesn't have to be opaque */
 		if (IsInvisibilitySet(to) && !HasBit(image, SPRITE_MODIFIER_OPAQUE)) return;
 
-		if (newgrf_offset == 0 || HasBit(image, SPRITE_MODIFIER_USE_OFFSET)) {
+		if (newgrf_offset == 0 || !HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
 			image += orig_offset;
 		} else {
 			image += newgrf_offset;
@@ -75,7 +75,7 @@ void DrawCommonTileSeqInGUI(int x, int y, const DrawTileSprites *dts, int32 orig
 
 	foreach_draw_tile_seq(dtss, dts->seq) {
 		SpriteID image = dtss->image.sprite;
-		if (newgrf_offset == 0 || HasBit(image, SPRITE_MODIFIER_USE_OFFSET)) {
+		if (newgrf_offset == 0 || !HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
 			image += orig_offset;
 		} else {
 			image += newgrf_offset;
diff --git a/src/sprite.h b/src/sprite.h
index 5251f7a3b..9144fe979 100644
--- a/src/sprite.h
+++ b/src/sprite.h
@@ -20,15 +20,6 @@
 #define GENERAL_SPRITE_COLOUR(colour) ((colour) + PALETTE_RECOLOUR_START)
 #define COMPANY_SPRITE_COLOUR(owner) (GENERAL_SPRITE_COLOUR(_company_colours[owner]))
 
-/**
- * Whether a sprite comes from the original graphics files or a new grf file
- * (either supplied by OpenTTD or supplied by the user).
- *
- * @param sprite The sprite to check
- * @return True if it is a new sprite, or false if it is original.
- */
-#define IS_CUSTOM_SPRITE(sprite) ((sprite) >= SPR_SIGNALS_BASE)
-
 /* The following describes bunch of sprites to be drawn together in a single 3D
  * bounding box. Used especially for various multi-sprite buildings (like
  * depots or stations): */
diff --git a/src/station_cmd.cpp b/src/station_cmd.cpp
index 41c21751e..3285482b4 100644
--- a/src/station_cmd.cpp
+++ b/src/station_cmd.cpp
@@ -2427,7 +2427,7 @@ static void DrawTile_Station(TileInfo *ti)
 	} else {
 		SpriteID image = t->ground.sprite;
 		SpriteID pal   = t->ground.pal;
-		if (HasBit(image, SPRITE_MODIFIER_USE_OFFSET)) {
+		if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
 			image += GetCustomStationGroundRelocation(statspec, st, ti->tile);
 			image += custom_ground_offset;
 		} else {
diff --git a/src/table/sprites.h b/src/table/sprites.h
index aa0a033a8..4198e8b8a 100644
--- a/src/table/sprites.h
+++ b/src/table/sprites.h
@@ -1419,7 +1419,7 @@ enum AnimCursors {
 enum SpriteSetup {
 	TRANSPARENT_BIT = 31,       ///< toggles transparency in the sprite
 	RECOLOUR_BIT = 30,          ///< toggles recolouring in the sprite
-	OFFSET_BIT = 29,
+	CUSTOM_BIT = 29,
 	OPAQUE_BIT = 28,
 
 	PALETTE_WIDTH = 24,         ///< number of bits of the sprite containing the recolour palette
@@ -1435,7 +1435,8 @@ enum SpriteSetup {
  * @see SpriteSetup
  */
 enum Modifiers {
-	SPRITE_MODIFIER_USE_OFFSET    = OFFSET_BIT,
+	/** Set when a sprite originates from an Action 1 */
+	SPRITE_MODIFIER_CUSTOM_SPRITE = CUSTOM_BIT,
 	/** Set when a sprite must not ever be displayed transparently */
 	SPRITE_MODIFIER_OPAQUE        = OPAQUE_BIT,
 	/** when a sprite is to be displayed transparently, this bit needs to be set. */