cpp/openttd-patchpack/source Changeset - r4328:abeae2374271

Changeset - r4328:abeae2374271

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truelight - 18 years ago 2006-08-20 18:44:26
truelight@openttd.org

(svn r6001) -Feature: when removing a farm, his farmland is removed too (over time) (based on peter1138's patch, FS#82)
To make this to work, in older games farmland is removed on load, and replanted

6 files changed with 75 insertions and 22 deletions:

clear_cmd.c

clear_map.h

industry.h

industry_cmd.c

openttd.c

saveload.c

0 comments (0 inline, 0 general)

clear_cmd.c

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@@ @@ -16,6 +16,7 @@ @@
 #include "table/sprites.h"
 #include "unmovable_map.h"
 #include "genworld.h"
 #include "industry.h"
 typedef struct TerraformerHeightMod {
 	TileIndex tile;
@@ @@ -679,9 +680,14 @@ static void TileLoop_Clear(TileIndex til @@
 				SetClearCounter(tile, 0);
+			}
 			field_type = GetFieldType(tile);
 			field_type = (field_type < 8) ? field_type + 1 : 0;
 			SetFieldType(tile, field_type);
 			if (GetIndustryIndexOfField(tile) == INVALID_INDUSTRY) {
 				/* This farmfield is no longer farmfield, so make it grass again */
 				MakeClear(tile, CLEAR_GRASS, 0);
 			} else {
 				field_type = GetFieldType(tile);
 				field_type = (field_type < 8) ? field_type + 1 : 0;
 				SetFieldType(tile, field_type);
+			}
 			break;
+		}

clear_map.h

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@@ @@ -83,6 +83,17 @@ static inline void SetFieldType(TileInde @@
 	SB(_m[t].m3, 0, 4, f);
+}
 static inline uint16 GetIndustryIndexOfField(TileIndex t)
+{
 	assert(GetClearGround(t) == CLEAR_FIELDS);
 	return _m[t].m2;
+}
 static inline void SetIndustryIndexOfField(TileIndex t, uint16 i)
+{
 	assert(GetClearGround(t) == CLEAR_FIELDS);
 	_m[t].m2 = i;
+}
 /* Is used by tree tiles, too */
 static inline uint GetFenceSE(TileIndex t)
@@ @@ -121,11 +132,11 @@ static inline void MakeClear(TileIndex t @@
+}
 static inline void MakeField(TileIndex t, uint field_type)
+static inline void MakeField(TileIndex t, uint field_type, uint16 industry)
+{
 	SetTileType(t, MP_CLEAR);
 	SetTileOwner(t, OWNER_NONE);
-	_m[t].m2 = 0;
+	_m[t].m2 = industry;
 	_m[t].m3 = field_type;
 	_m[t].m4 = 0 << 5 | 0 << 2;
 	SetClearGroundDensity(t, CLEAR_FIELDS, 3);

industry.h

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@@ @@ -8,6 +8,10 @@ @@
 typedef byte IndustryGfx;
 typedef uint8 IndustryType;
 enum {
 	INVALID_INDUSTRY = 0xFFFF,
 };
 struct Industry {
 	TileIndex xy;
 	byte width; /* swapped order of w/h with town */
@@ @@ -101,6 +105,7 @@ VARDEF bool _industry_sort_dirty; @@
 void DeleteIndustry(Industry *is);
 void PlantRandomFarmField(const Industry *i);
 enum {
 	IT_COAL_MINE = 0,

industry_cmd.c

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@@ @@ -753,6 +753,16 @@ void DeleteIndustry(Industry *i) @@
+		}
 	END_TILE_LOOP(tile_cur, i->width, i->height, i->xy);
 	if (i->type == IT_FARM || i->type == IT_FARM_2) {
 		/* Remove the farmland and convert it to regular tiles over time. */
 		BEGIN_TILE_LOOP(tile_cur, 42, 42, i->xy - TileDiffXY(21, 21)) {
 			if (IsTileType(tile_cur, MP_CLEAR) && IsClearGround(tile_cur, CLEAR_FIELDS) &&
 					GetIndustryIndexOfField(tile_cur) == i->index) {
 				SetIndustryIndexOfField(tile_cur, INVALID_INDUSTRY);
+			}
 		} END_TILE_LOOP(tile_cur, 42, 42, i->xy - TileDiff(21, 21))
+	}
 	i->xy = 0;
 	_industry_sort_dirty = true;
 	DeleteSubsidyWithIndustry(i->index);
@@ @@ -801,7 +811,7 @@ static void SetupFarmFieldFence(TileInde @@
 	} while (--size);
+}
 static void PlantFarmField(TileIndex tile)
+static void PlantFarmField(TileIndex tile, uint16 industry)
+{
 	uint size_x, size_y;
 	uint32 r;
@@ @@ -841,7 +851,7 @@ static void PlantFarmField(TileIndex til @@
 	BEGIN_TILE_LOOP(cur_tile, size_x, size_y, tile)
 		cur_tile = TILE_MASK(cur_tile);
 		if (!IsBadFarmFieldTile2(cur_tile)) {
 			MakeField(cur_tile, field_type);
+			MakeField(cur_tile, field_type, industry);
 			SetClearCounter(cur_tile, counter);
 			MarkTileDirtyByTile(cur_tile);
+		}
@@ @@ -858,14 +868,19 @@ static void PlantFarmField(TileIndex til @@
 	SetupFarmFieldFence(tile + TileDiffXY(0, size_y - 1), size_x, type, AXIS_X);
+}
 void PlantRandomFarmField(const Industry *i)
+{
 	int x = i->width  / 2 + Random() % 31 - 16;
 	int y = i->height / 2 + Random() % 31 - 16;
 	TileIndex tile = TileAddWrap(i->xy, x, y);
 	if (tile != INVALID_TILE) PlantFarmField(tile, i->index);
+}
 static void MaybePlantFarmField(const Industry *i)
+{
 	if (CHANCE16(1, 8)) {
 		int x = i->width  / 2 + Random() % 31 - 16;
 		int y = i->height / 2 + Random() % 31 - 16;
 		TileIndex tile = TileAddWrap(i->xy, x, y);
 		if (tile != INVALID_TILE) PlantFarmField(tile);
+	}
 	if (CHANCE16(1, 8)) PlantRandomFarmField(i);
+}
 static void ChopLumberMillTrees(Industry *i)
@@ @@ -1474,14 +1489,7 @@ static void DoCreateNewIndustry(Industry @@
 	i->height++;
 	if (i->type == IT_FARM || i->type == IT_FARM_2) {
 		tile = i->xy + TileDiffXY(i->width / 2, i->height / 2);
 		for (j = 0; j != 50; j++) {
 			int x = Random() % 31 - 16;
 			int y = Random() % 31 - 16;
 			TileIndex new_tile = TileAddWrap(tile, x, y);
 			if (new_tile != INVALID_TILE) PlantFarmField(new_tile);
+		}
 		for (j = 0; j != 50; j++) PlantRandomFarmField(i);
+	}
 	_industry_sort_dirty = true;
 	InvalidateWindow(WC_INDUSTRY_DIRECTORY, 0);

openttd.c

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@@ @@ -50,6 +50,7 @@ @@
 #include "settings.h"
 #include "genworld.h"
 #include "date.h"
 #include "clear_map.h"
 #include <stdarg.h>
@@ @@ -1463,5 +1464,27 @@ bool AfterLoadGame(void) @@
+		}
+	}
 	/* From 32 on we save the industry who made the farmland.
 	 *  To give this prettyness to old savegames, we remove all farmfields and
 	 *  plant new ones. */
 	if (CheckSavegameVersion(32)) {
 		Industry *i;
 		BEGIN_TILE_LOOP(tile_cur, MapSizeX(), MapSizeY(), 0) {
 			if (IsTileType(tile_cur, MP_CLEAR) && IsClearGround(tile_cur, CLEAR_FIELDS)) {
 				MakeClear(tile_cur, CLEAR_GRASS, 3);
+			}
 		} END_TILE_LOOP(tile_cur, MapSizeX(), MapSizeY(), 0)
 		FOR_ALL_INDUSTRIES(i) {
 			uint j;
 			if (i->xy == 0) continue;
 			if (i->type == IT_FARM || i->type == IT_FARM_2) {
 				for (j = 0; j != 50; j++) PlantRandomFarmField(i);
+			}
+		}
+	}
 	return true;
+}

saveload.c

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@@ @@ -30,7 +30,7 @@ @@
 #include "variables.h"
 #include <setjmp.h>
-const uint16 SAVEGAME_VERSION = 31;
+const uint16 SAVEGAME_VERSION = 32;
 uint16 _sl_version;       /// the major savegame version identifier
 byte   _sl_minor_version; /// the minor savegame version, DO NOT USE!

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