From 4a6ac52d8c4c62077cba42a314480a87714870df Mon Sep 17 00:00:00 2001
From: Rubidium <rubidium@openttd.org>
Date: Tue, 8 Oct 2024 20:41:24 +0200
Subject: [PATCH] Cleanup: remove some unused #defines

---
 src/map_type.h          | 12 ------------
 src/saveload/saveload.h | 11 -----------
 src/smallmap_gui.cpp    |  4 ----
 src/tgp.cpp             |  2 --
 4 files changed, 29 deletions(-)

diff --git a/src/map_type.h b/src/map_type.h
index 246b6c0432..6537e51008 100644
--- a/src/map_type.h
+++ b/src/map_type.h
@@ -39,18 +39,6 @@ static const uint MAX_MAP_SIZE_BITS = 12;                      ///< Maximal size
 static const uint MIN_MAP_SIZE      = 1U << MIN_MAP_SIZE_BITS; ///< Minimal map size = 64
 static const uint MAX_MAP_SIZE      = 1U << MAX_MAP_SIZE_BITS; ///< Maximal map size = 4096
 
-/**
- * Approximation of the length of a straight track, relative to a diagonal
- * track (ie the size of a tile side).
- *
- * \#defined instead of const so it can
- * stay integer. (no runtime float operations) Is this needed?
- * Watch out! There are _no_ brackets around here, to prevent intermediate
- * rounding! Be careful when using this!
- * This value should be sqrt(2)/2 ~ 0.7071
- */
-#define STRAIGHT_TRACK_LENGTH 7071/10000
-
 /** Argument for CmdLevelLand describing what to do. */
 enum LevelMode : uint8_t {
 	LM_LEVEL, ///< Level the land.
diff --git a/src/saveload/saveload.h b/src/saveload/saveload.h
index d12fb00e02..e92373a26c 100644
--- a/src/saveload/saveload.h
+++ b/src/saveload/saveload.h
@@ -1214,17 +1214,6 @@ inline constexpr bool SlCheckVarSize(SaveLoadType cmd, VarType type, size_t leng
  */
 #define SLC_NULL(length, from, to) {{}, SLE_FILE_U8, length, from, to}
 
-/**
- * Empty space in every savegame version that was filled with a string.
- * @param length Number of strings in the empty space.
- * @param from   First savegame version that has the empty space.
- * @param to     Last savegame version that has the empty space.
- */
-#define SLC_NULL_STR(length, from, to) {{}, SLE_FILE_STRING, length, from, to}
-
-/** End marker of compat variables save or load. */
-#define SLC_END() {{}, 0, 0, SL_MIN_VERSION, SL_MIN_VERSION}
-
 /**
  * Checks whether the savegame is below \a major.\a minor.
  * @param major Major number of the version to check against.
diff --git a/src/smallmap_gui.cpp b/src/smallmap_gui.cpp
index e3daba039d..9d57eac992 100644
--- a/src/smallmap_gui.cpp
+++ b/src/smallmap_gui.cpp
@@ -259,16 +259,12 @@ static const LegendAndColour * const _legend_table[] = {
 #define MKCOLOUR(x)         TO_LE32X(x)
 
 #define MKCOLOUR_XXXX(x)    (MKCOLOUR(0x01010101) * (uint)(x))
-#define MKCOLOUR_X0X0(x)    (MKCOLOUR(0x01000100) * (uint)(x))
-#define MKCOLOUR_0X0X(x)    (MKCOLOUR(0x00010001) * (uint)(x))
 #define MKCOLOUR_0XX0(x)    (MKCOLOUR(0x00010100) * (uint)(x))
 #define MKCOLOUR_X00X(x)    (MKCOLOUR(0x01000001) * (uint)(x))
 
-#define MKCOLOUR_XYXY(x, y) (MKCOLOUR_X0X0(x) | MKCOLOUR_0X0X(y))
 #define MKCOLOUR_XYYX(x, y) (MKCOLOUR_X00X(x) | MKCOLOUR_0XX0(y))
 
 #define MKCOLOUR_0000       MKCOLOUR_XXXX(0x00)
-#define MKCOLOUR_0FF0       MKCOLOUR_0XX0(0xFF)
 #define MKCOLOUR_F00F       MKCOLOUR_X00X(0xFF)
 #define MKCOLOUR_FFFF       MKCOLOUR_XXXX(0xFF)
 
diff --git a/src/tgp.cpp b/src/tgp.cpp
index 578f94e47a..efe3fa96af 100644
--- a/src/tgp.cpp
+++ b/src/tgp.cpp
@@ -187,8 +187,6 @@ static HeightMap _height_map = { {}, 0, 0, 0 };
 /** Conversion: Height to int */
 #define H2I(i) ((i) >> height_decimal_bits)
 
-/** Conversion: int to Amplitude */
-#define I2A(i) ((i) << amplitude_decimal_bits)
 /** Conversion: Amplitude to int */
 #define A2I(i) ((i) >> amplitude_decimal_bits)