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Location: cpp/openttd-patchpack/source/src/landscape.cpp - annotation
r9464:ce84e83c962a
24.2 KiB
text/x-c
(svn r13384) -Update: WebTranslator2 update to 2008-06-05 08:15:43
brazilian_portuguese - 9 fixed, 6 changed by tucalipe (15)
catalan - 9 fixed by arnaullv (9)
croatian - 13 fixed by knovak (13)
czech - 33 fixed by Hadez (33)
danish - 47 fixed by ThomasA (47)
dutch - 9 fixed by habell (9)
estonian - 42 fixed, 5 changed by kristjans (47)
finnish - 5 fixed, 1 changed by kerba (6)
french - 9 fixed, 2 changed by glx (8), belugas (3)
icelandic - 75 fixed by scrooge (75)
italian - 9 fixed, 12 changed by lorenzodv (21)
korean - 76 fixed, 15 changed by leejaeuk5 (91)
portuguese - 7 fixed by izhirahider (7)
romanian - 97 fixed, 302 changed by CrystyB (399)
russian - 12 fixed by Smoky555 (12)
spanish - 12 fixed by eusebio (12)
swedish - 13 fixed by ChrillDeVille (6), daishan (7)
turkish - 39 fixed, 1 changed by jnmbk (40)
ukrainian - 10 fixed by mad (10)
brazilian_portuguese - 9 fixed, 6 changed by tucalipe (15)
catalan - 9 fixed by arnaullv (9)
croatian - 13 fixed by knovak (13)
czech - 33 fixed by Hadez (33)
danish - 47 fixed by ThomasA (47)
dutch - 9 fixed by habell (9)
estonian - 42 fixed, 5 changed by kristjans (47)
finnish - 5 fixed, 1 changed by kerba (6)
french - 9 fixed, 2 changed by glx (8), belugas (3)
icelandic - 75 fixed by scrooge (75)
italian - 9 fixed, 12 changed by lorenzodv (21)
korean - 76 fixed, 15 changed by leejaeuk5 (91)
portuguese - 7 fixed by izhirahider (7)
romanian - 97 fixed, 302 changed by CrystyB (399)
russian - 12 fixed by Smoky555 (12)
spanish - 12 fixed by eusebio (12)
swedish - 13 fixed by ChrillDeVille (6), daishan (7)
turkish - 39 fixed, 1 changed by jnmbk (40)
ukrainian - 10 fixed by mad (10)
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r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 | /* $Id$ */
/** @file landscape.cpp Functions related to the landscape (slopes etc.). */
#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "heightmap.h"
#include "clear_map.h"
#include "spritecache.h"
#include <stdarg.h>
#include "viewport_func.h"
#include "command_func.h"
#include "landscape.h"
#include "variables.h"
#include "void_map.h"
#include "water_map.h"
#include "tgp.h"
#include "genworld.h"
#include "tile_cmd.h"
#include "core/alloc_func.hpp"
#include "fios.h"
#include "window_func.h"
#include "functions.h"
#include "date_func.h"
#include "vehicle_func.h"
#include "settings_type.h"
#include "water.h"
#include "effectvehicle_func.h"
#include "landscape_type.h"
#include "table/sprites.h"
extern const TileTypeProcs
_tile_type_clear_procs,
_tile_type_rail_procs,
_tile_type_road_procs,
_tile_type_town_procs,
_tile_type_trees_procs,
_tile_type_station_procs,
_tile_type_water_procs,
_tile_type_dummy_procs,
_tile_type_industry_procs,
_tile_type_tunnelbridge_procs,
_tile_type_unmovable_procs;
const TileTypeProcs * const _tile_type_procs[16] = {
&_tile_type_clear_procs,
&_tile_type_rail_procs,
&_tile_type_road_procs,
&_tile_type_town_procs,
&_tile_type_trees_procs,
&_tile_type_station_procs,
&_tile_type_water_procs,
&_tile_type_dummy_procs,
&_tile_type_industry_procs,
&_tile_type_tunnelbridge_procs,
&_tile_type_unmovable_procs,
};
/* landscape slope => sprite */
const byte _tileh_to_sprite[32] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0,
0, 0, 0, 0, 0, 0, 0, 16, 0, 0, 0, 17, 0, 15, 18, 0,
};
SnowLine *_snow_line = NULL;
/**
* Applys a foundation to a slope.
*
* @pre Foundation and slope must be valid combined.
* @param f The #Foundation.
* @param s The #Slope to modify.
* @return Increment to the tile Z coordinate.
*/
uint ApplyFoundationToSlope(Foundation f, Slope *s)
{
if (!IsFoundation(f)) return 0;
if (IsLeveledFoundation(f)) {
*s = SLOPE_FLAT;
return TILE_HEIGHT;
}
if (f != FOUNDATION_STEEP_BOTH && IsNonContinuousFoundation(f)) {
*s = HalftileSlope(*s, GetHalftileFoundationCorner(f));
return 0;
}
if (IsSpecialRailFoundation(f)) {
*s = SlopeWithThreeCornersRaised(OppositeCorner(GetRailFoundationCorner(f)));
return 0;
}
uint dz = IsSteepSlope(*s) ? TILE_HEIGHT : 0;
Corner highest_corner = GetHighestSlopeCorner(*s);
switch (f) {
case FOUNDATION_INCLINED_X:
*s = (((highest_corner == CORNER_W) || (highest_corner == CORNER_S)) ? SLOPE_SW : SLOPE_NE);
break;
case FOUNDATION_INCLINED_Y:
*s = (((highest_corner == CORNER_S) || (highest_corner == CORNER_E)) ? SLOPE_SE : SLOPE_NW);
break;
case FOUNDATION_STEEP_LOWER:
*s = SlopeWithOneCornerRaised(highest_corner);
break;
case FOUNDATION_STEEP_BOTH:
*s = HalftileSlope(SlopeWithOneCornerRaised(highest_corner), highest_corner);
break;
default: NOT_REACHED();
}
return dz;
}
/**
* Determines height at given coordinate of a slope
* @param x x coordinate
* @param y y coordinate
* @param corners slope to examine
* @return height of given point of given slope
*/
uint GetPartialZ(int x, int y, Slope corners)
{
if (IsHalftileSlope(corners)) {
switch (GetHalftileSlopeCorner(corners)) {
case CORNER_W:
if (x - y >= 0) return GetSlopeMaxZ(corners);
break;
case CORNER_S:
if (x - (y ^ 0xF) >= 0) return GetSlopeMaxZ(corners);
break;
case CORNER_E:
if (y - x >= 0) return GetSlopeMaxZ(corners);
break;
case CORNER_N:
if ((y ^ 0xF) - x >= 0) return GetSlopeMaxZ(corners);
break;
default: NOT_REACHED();
}
}
int z = 0;
switch (RemoveHalftileSlope(corners)) {
case SLOPE_W:
if (x - y >= 0) {
z = (x - y) >> 1;
}
break;
case SLOPE_S:
y ^= 0xF;
if ((x - y) >= 0) {
z = (x - y) >> 1;
}
break;
case SLOPE_SW:
z = (x >> 1) + 1;
break;
case SLOPE_E:
if (y - x >= 0) {
z = (y - x) >> 1;
}
break;
case SLOPE_EW:
case SLOPE_NS:
case SLOPE_ELEVATED:
z = 4;
break;
case SLOPE_SE:
z = (y >> 1) + 1;
break;
case SLOPE_WSE:
z = 8;
y ^= 0xF;
if (x - y < 0) {
z += (x - y) >> 1;
}
break;
case SLOPE_N:
y ^= 0xF;
if (y - x >= 0) {
z = (y - x) >> 1;
}
break;
case SLOPE_NW:
z = (y ^ 0xF) >> 1;
break;
case SLOPE_NWS:
z = 8;
if (x - y < 0) {
z += (x - y) >> 1;
}
break;
case SLOPE_NE:
z = (x ^ 0xF) >> 1;
break;
case SLOPE_ENW:
z = 8;
y ^= 0xF;
if (y - x < 0) {
z += (y - x) >> 1;
}
break;
case SLOPE_SEN:
z = 8;
if (y - x < 0) {
z += (y - x) >> 1;
}
break;
case SLOPE_STEEP_S:
z = 1 + ((x + y) >> 1);
break;
case SLOPE_STEEP_W:
z = 1 + ((x + (y ^ 0xF)) >> 1);
break;
case SLOPE_STEEP_N:
z = 1 + (((x ^ 0xF) + (y ^ 0xF)) >> 1);
break;
case SLOPE_STEEP_E:
z = 1 + (((x ^ 0xF) + y) >> 1);
break;
default: break;
}
return z;
}
uint GetSlopeZ(int x, int y)
{
TileIndex tile = TileVirtXY(x, y);
return _tile_type_procs[GetTileType(tile)]->get_slope_z_proc(tile, x, y);
}
/**
* Determine the Z height of a corner relative to TileZ.
*
* @pre The slope must not be a halftile slope.
*
* @param tileh The slope.
* @param corner The corner.
* @return Z position of corner relative to TileZ.
*/
int GetSlopeZInCorner(Slope tileh, Corner corner)
{
assert(!IsHalftileSlope(tileh));
return ((tileh & SlopeWithOneCornerRaised(corner)) != 0 ? TILE_HEIGHT : 0) + (tileh == SteepSlope(corner) ? TILE_HEIGHT : 0);
}
/**
* Determine the Z height of the corners of a specific tile edge
*
* @note If a tile has a non-continuous halftile foundation, a corner can have different heights wrt. it's edges.
*
* @pre z1 and z2 must be initialized (typ. with TileZ). The corner heights just get added.
*
* @param tileh The slope of the tile.
* @param edge The edge of interest.
* @param z1 Gets incremented by the height of the first corner of the edge. (near corner wrt. the camera)
* @param z2 Gets incremented by the height of the second corner of the edge. (far corner wrt. the camera)
*/
void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2)
{
static const Slope corners[4][4] = {
/* corner | steep slope
* z1 z2 | z1 z2 */
{SLOPE_E, SLOPE_N, SLOPE_STEEP_E, SLOPE_STEEP_N}, // DIAGDIR_NE, z1 = E, z2 = N
{SLOPE_S, SLOPE_E, SLOPE_STEEP_S, SLOPE_STEEP_E}, // DIAGDIR_SE, z1 = S, z2 = E
{SLOPE_S, SLOPE_W, SLOPE_STEEP_S, SLOPE_STEEP_W}, // DIAGDIR_SW, z1 = S, z2 = W
{SLOPE_W, SLOPE_N, SLOPE_STEEP_W, SLOPE_STEEP_N}, // DIAGDIR_NW, z1 = W, z2 = N
};
int halftile_test = (IsHalftileSlope(tileh) ? SlopeWithOneCornerRaised(GetHalftileSlopeCorner(tileh)) : 0);
if (halftile_test == corners[edge][0]) *z2 += TILE_HEIGHT; // The slope is non-continuous in z2. z2 is on the upper side.
if (halftile_test == corners[edge][1]) *z1 += TILE_HEIGHT; // The slope is non-continuous in z1. z1 is on the upper side.
if ((tileh & corners[edge][0]) != 0) *z1 += TILE_HEIGHT; // z1 is raised
if ((tileh & corners[edge][1]) != 0) *z2 += TILE_HEIGHT; // z2 is raised
if (RemoveHalftileSlope(tileh) == corners[edge][2]) *z1 += TILE_HEIGHT; // z1 is highest corner of a steep slope
if (RemoveHalftileSlope(tileh) == corners[edge][3]) *z2 += TILE_HEIGHT; // z2 is highest corner of a steep slope
}
/**
* Get slope of a tile on top of a (possible) foundation
* If a tile does not have a foundation, the function returns the same as GetTileSlope.
*
* @param tile The tile of interest.
* @param z returns the z of the foundation slope. (Can be NULL, if not needed)
* @return The slope on top of the foundation.
*/
Slope GetFoundationSlope(TileIndex tile, uint* z)
{
Slope tileh = GetTileSlope(tile, z);
Foundation f = _tile_type_procs[GetTileType(tile)]->get_foundation_proc(tile, tileh);
uint z_inc = ApplyFoundationToSlope(f, &tileh);
if (z != NULL) *z += z_inc;
return tileh;
}
static bool HasFoundationNW(TileIndex tile, Slope slope_here, uint z_here)
{
uint z;
int z_W_here = z_here;
int z_N_here = z_here;
GetSlopeZOnEdge(slope_here, DIAGDIR_NW, &z_W_here, &z_N_here);
Slope slope = GetFoundationSlope(TILE_ADDXY(tile, 0, -1), &z);
int z_W = z;
int z_N = z;
GetSlopeZOnEdge(slope, DIAGDIR_SE, &z_W, &z_N);
return (z_N_here > z_N) || (z_W_here > z_W);
}
static bool HasFoundationNE(TileIndex tile, Slope slope_here, uint z_here)
{
uint z;
int z_E_here = z_here;
int z_N_here = z_here;
GetSlopeZOnEdge(slope_here, DIAGDIR_NE, &z_E_here, &z_N_here);
Slope slope = GetFoundationSlope(TILE_ADDXY(tile, -1, 0), &z);
int z_E = z;
int z_N = z;
GetSlopeZOnEdge(slope, DIAGDIR_SW, &z_E, &z_N);
return (z_N_here > z_N) || (z_E_here > z_E);
}
void DrawFoundation(TileInfo *ti, Foundation f)
{
if (!IsFoundation(f)) return;
/* Two part foundations must be drawn separately */
assert(f != FOUNDATION_STEEP_BOTH);
uint sprite_block = 0;
uint z;
Slope slope = GetFoundationSlope(ti->tile, &z);
/* Select the needed block of foundations sprites
* Block 0: Walls at NW and NE edge
* Block 1: Wall at NE edge
* Block 2: Wall at NW edge
* Block 3: No walls at NW or NE edge
*/
if (!HasFoundationNW(ti->tile, slope, z)) sprite_block += 1;
if (!HasFoundationNE(ti->tile, slope, z)) sprite_block += 2;
/* Use the original slope sprites if NW and NE borders should be visible */
SpriteID leveled_base = (sprite_block == 0 ? (int)SPR_FOUNDATION_BASE : (SPR_SLOPES_VIRTUAL_BASE + sprite_block * SPR_TRKFOUND_BLOCK_SIZE));
SpriteID inclined_base = SPR_SLOPES_VIRTUAL_BASE + SPR_SLOPES_INCLINED_OFFSET + sprite_block * SPR_TRKFOUND_BLOCK_SIZE;
SpriteID halftile_base = SPR_HALFTILE_FOUNDATION_BASE + sprite_block * SPR_HALFTILE_BLOCK_SIZE;
if (IsSteepSlope(ti->tileh)) {
if (!IsNonContinuousFoundation(f)) {
/* Lower part of foundation */
AddSortableSpriteToDraw(
leveled_base + (ti->tileh & ~SLOPE_STEEP), PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z
);
}
Corner highest_corner = GetHighestSlopeCorner(ti->tileh);
ti->z += ApplyFoundationToSlope(f, &ti->tileh);
if (IsInclinedFoundation(f)) {
/* inclined foundation */
byte inclined = highest_corner * 2 + (f == FOUNDATION_INCLINED_Y ? 1 : 0);
AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, ti->x, ti->y, 16, 16, 1, ti->z);
OffsetGroundSprite(31, 9);
} else if (f == FOUNDATION_STEEP_LOWER) {
/* one corner raised */
OffsetGroundSprite(31, 1);
} else {
/* halftile foundation */
int x_bb = (((highest_corner == CORNER_W) || (highest_corner == CORNER_S)) ? 8 : 0);
int y_bb = (((highest_corner == CORNER_S) || (highest_corner == CORNER_E)) ? 8 : 0);
AddSortableSpriteToDraw(halftile_base + highest_corner, PAL_NONE, ti->x + x_bb, ti->y + y_bb, 8, 8, 7, ti->z + TILE_HEIGHT);
OffsetGroundSprite(31, 9);
}
} else {
if (IsLeveledFoundation(f)) {
/* leveled foundation */
AddSortableSpriteToDraw(leveled_base + ti->tileh, PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z);
OffsetGroundSprite(31, 1);
} else if (IsNonContinuousFoundation(f)) {
/* halftile foundation */
Corner halftile_corner = GetHalftileFoundationCorner(f);
int x_bb = (((halftile_corner == CORNER_W) || (halftile_corner == CORNER_S)) ? 8 : 0);
int y_bb = (((halftile_corner == CORNER_S) || (halftile_corner == CORNER_E)) ? 8 : 0);
AddSortableSpriteToDraw(halftile_base + halftile_corner, PAL_NONE, ti->x + x_bb, ti->y + y_bb, 8, 8, 7, ti->z);
OffsetGroundSprite(31, 9);
} else if (IsSpecialRailFoundation(f)) {
/* anti-zig-zag foundation */
SpriteID spr;
if (ti->tileh == SLOPE_NS || ti->tileh == SLOPE_EW) {
/* half of leveled foundation under track corner */
spr = leveled_base + SlopeWithThreeCornersRaised(GetRailFoundationCorner(f));
} else {
/* tile-slope = sloped along X/Y, foundation-slope = three corners raised */
spr = inclined_base + 2 * GetRailFoundationCorner(f) + ((ti->tileh == SLOPE_SW || ti->tileh == SLOPE_NE) ? 1 : 0);
}
AddSortableSpriteToDraw(spr, PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z);
OffsetGroundSprite(31, 9);
} else {
/* inclined foundation */
byte inclined = GetHighestSlopeCorner(ti->tileh) * 2 + (f == FOUNDATION_INCLINED_Y ? 1 : 0);
AddSortableSpriteToDraw(inclined_base + inclined, PAL_NONE, ti->x, ti->y, 16, 16, 1, ti->z);
OffsetGroundSprite(31, 9);
}
ti->z += ApplyFoundationToSlope(f, &ti->tileh);
}
}
void DoClearSquare(TileIndex tile)
{
MakeClear(tile, CLEAR_GRASS, _generating_world ? 3 : 0);
MarkTileDirtyByTile(tile);
}
/** Returns information about trackdirs and signal states.
* If there is any trackbit at 'side', return all trackdirbits.
* For TRANSPORT_ROAD, return no trackbits if there is no roadbit (of given subtype) at given side.
* @param tile tile to get info about
* @param mode transport type
* @param sub_mode for TRANSPORT_ROAD, roadtypes to check
* @param side side we are entering from, INVALID_DIAGDIR to return all trackbits
* @return trackdirbits and other info depending on 'mode'
*/
TrackStatus GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
{
return _tile_type_procs[GetTileType(tile)]->get_tile_track_status_proc(tile, mode, sub_mode, side);
}
void ChangeTileOwner(TileIndex tile, PlayerID old_player, PlayerID new_player)
{
_tile_type_procs[GetTileType(tile)]->change_tile_owner_proc(tile, old_player, new_player);
}
void GetAcceptedCargo(TileIndex tile, AcceptedCargo ac)
{
memset(ac, 0, sizeof(AcceptedCargo));
_tile_type_procs[GetTileType(tile)]->get_accepted_cargo_proc(tile, ac);
}
void AnimateTile(TileIndex tile)
{
_tile_type_procs[GetTileType(tile)]->animate_tile_proc(tile);
}
void ClickTile(TileIndex tile)
{
_tile_type_procs[GetTileType(tile)]->click_tile_proc(tile);
}
void GetTileDesc(TileIndex tile, TileDesc *td)
{
_tile_type_procs[GetTileType(tile)]->get_tile_desc_proc(tile, td);
}
/**
* Has a snow line table already been loaded.
* @return true if the table has been loaded already.
*/
bool IsSnowLineSet(void)
{
return _snow_line != NULL;
}
/**
* Set a variable snow line, as loaded from a newgrf file.
* @param table the 12 * 32 byte table containing the snowline for each day
*/
void SetSnowLine(byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS])
{
_snow_line = CallocT<SnowLine>(1);
memcpy(_snow_line->table, table, sizeof(_snow_line->table));
for (uint i = 0; i < SNOW_LINE_MONTHS; i++) {
for (uint j = 0; j < SNOW_LINE_DAYS; j++) {
_snow_line->highest_value = max(_snow_line->highest_value, table[i][j]);
}
}
}
/**
* Get the current snow line, either variable or static.
* @return the snow line height.
*/
byte GetSnowLine(void)
{
if (_snow_line == NULL) return _settings_game.game_creation.snow_line;
YearMonthDay ymd;
ConvertDateToYMD(_date, &ymd);
return _snow_line->table[ymd.month][ymd.day];
}
/**
* Get the highest possible snow line height, either variable or static.
* @return the highest snow line height.
*/
byte HighestSnowLine(void)
{
return _snow_line == NULL ? _settings_game.game_creation.snow_line : _snow_line->highest_value;
}
/**
* Clear the variable snow line table and free the memory.
*/
void ClearSnowLine(void)
{
free(_snow_line);
_snow_line = NULL;
}
/** Clear a piece of landscape
* @param tile tile to clear
* @param flags of operation to conduct
* @param p1 unused
* @param p2 unused
*/
CommandCost CmdLandscapeClear(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
return _tile_type_procs[GetTileType(tile)]->clear_tile_proc(tile, flags);
}
/** Clear a big piece of landscape
* @param tile end tile of area dragging
* @param p1 start tile of area dragging
* @param flags of operation to conduct
* @param p2 unused
*/
CommandCost CmdClearArea(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
if (p1 >= MapSize()) return CMD_ERROR;
/* make sure sx,sy are smaller than ex,ey */
int ex = TileX(tile);
int ey = TileY(tile);
int sx = TileX(p1);
int sy = TileY(p1);
if (ex < sx) Swap(ex, sx);
if (ey < sy) Swap(ey, sy);
Money money = GetAvailableMoneyForCommand();
CommandCost cost(EXPENSES_CONSTRUCTION);
bool success = false;
for (int x = sx; x <= ex; ++x) {
for (int y = sy; y <= ey; ++y) {
CommandCost ret = DoCommand(TileXY(x, y), 0, 0, flags & ~DC_EXEC, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(ret)) continue;
success = true;
if (flags & DC_EXEC) {
money -= ret.GetCost();
if (ret.GetCost() > 0 && money < 0) {
_additional_cash_required = ret.GetCost();
return cost;
}
DoCommand(TileXY(x, y), 0, 0, flags, CMD_LANDSCAPE_CLEAR);
/* draw explosion animation... */
if ((x == sx || x == ex) && (y == sy || y == ey)) {
/* big explosion in each corner, or small explosion for single tiles */
CreateEffectVehicleAbove(x * TILE_SIZE + TILE_SIZE / 2, y * TILE_SIZE + TILE_SIZE / 2, 2,
sy == ey && sx == ex ? EV_EXPLOSION_SMALL : EV_EXPLOSION_LARGE
);
}
}
cost.AddCost(ret);
}
}
return (success) ? cost : CMD_ERROR;
}
TileIndex _cur_tileloop_tile;
#define TILELOOP_BITS 4
#define TILELOOP_SIZE (1 << TILELOOP_BITS)
#define TILELOOP_ASSERTMASK ((TILELOOP_SIZE - 1) + ((TILELOOP_SIZE - 1) << MapLogX()))
#define TILELOOP_CHKMASK (((1 << (MapLogX() - TILELOOP_BITS))-1) << TILELOOP_BITS)
void RunTileLoop()
{
TileIndex tile = _cur_tileloop_tile;
assert((tile & ~TILELOOP_ASSERTMASK) == 0);
uint count = (MapSizeX() / TILELOOP_SIZE) * (MapSizeY() / TILELOOP_SIZE);
do {
_tile_type_procs[GetTileType(tile)]->tile_loop_proc(tile);
if (TileX(tile) < MapSizeX() - TILELOOP_SIZE) {
tile += TILELOOP_SIZE; // no overflow
} else {
tile = TILE_MASK(tile - TILELOOP_SIZE * (MapSizeX() / TILELOOP_SIZE - 1) + TileDiffXY(0, TILELOOP_SIZE)); /* x would overflow, also increase y */
}
} while (--count != 0);
assert((tile & ~TILELOOP_ASSERTMASK) == 0);
tile += 9;
if (tile & TILELOOP_CHKMASK) {
tile = (tile + MapSizeX()) & TILELOOP_ASSERTMASK;
}
_cur_tileloop_tile = tile;
}
void InitializeLandscape()
{
uint maxx = MapMaxX();
uint maxy = MapMaxY();
uint sizex = MapSizeX();
uint y;
for (y = 0; y < maxy; y++) {
uint x;
for (x = 0; x < maxx; x++) {
MakeClear(sizex * y + x, CLEAR_GRASS, 3);
SetTileHeight(sizex * y + x, 0);
SetTropicZone(sizex * y + x, TROPICZONE_NORMAL);
ClearBridgeMiddle(sizex * y + x);
}
MakeVoid(sizex * y + x);
}
for (uint x = 0; x < sizex; x++) MakeVoid(sizex * y + x);
}
static const byte _genterrain_tbl_1[5] = { 10, 22, 33, 37, 4 };
static const byte _genterrain_tbl_2[5] = { 0, 0, 0, 0, 33 };
static void GenerateTerrain(int type, uint flag)
{
uint32 r = Random();
const Sprite *templ = GetSprite((((r >> 24) * _genterrain_tbl_1[type]) >> 8) + _genterrain_tbl_2[type] + 4845);
uint x = r & MapMaxX();
uint y = (r >> MapLogX()) & MapMaxY();
if (x < 2 || y < 2) return;
DiagDirection direction = (DiagDirection)GB(r, 22, 2);
uint w = templ->width;
uint h = templ->height;
if (DiagDirToAxis(direction) == AXIS_Y) Swap(w, h);
const byte *p = templ->data;
if ((flag & 4) != 0) {
uint xw = x * MapSizeY();
uint yw = y * MapSizeX();
uint bias = (MapSizeX() + MapSizeY()) * 16;
switch (flag & 3) {
default: NOT_REACHED();
case 0:
if (xw + yw > MapSize() - bias) return;
break;
case 1:
if (yw < xw + bias) return;
break;
case 2:
if (xw + yw < MapSize() + bias) return;
break;
case 3:
if (xw < yw + bias) return;
break;
}
}
if (x + w >= MapMaxX() - 1) return;
if (y + h >= MapMaxY() - 1) return;
Tile *tile = &_m[TileXY(x, y)];
switch (direction) {
default: NOT_REACHED();
case DIAGDIR_NE:
do {
Tile *tile_cur = tile;
for (uint w_cur = w; w_cur != 0; --w_cur) {
if (*p >= tile_cur->type_height) tile_cur->type_height = *p;
p++;
tile_cur++;
}
tile += TileDiffXY(0, 1);
} while (--h != 0);
break;
case DIAGDIR_SE:
do {
Tile *tile_cur = tile;
for (uint h_cur = h; h_cur != 0; --h_cur) {
if (*p >= tile_cur->type_height) tile_cur->type_height = *p;
p++;
tile_cur += TileDiffXY(0, 1);
}
tile += TileDiffXY(1, 0);
} while (--w != 0);
break;
case DIAGDIR_SW:
tile += TileDiffXY(w - 1, 0);
do {
Tile *tile_cur = tile;
for (uint w_cur = w; w_cur != 0; --w_cur) {
if (*p >= tile_cur->type_height) tile_cur->type_height = *p;
p++;
tile_cur--;
}
tile += TileDiffXY(0, 1);
} while (--h != 0);
break;
case DIAGDIR_NW:
tile += TileDiffXY(0, h - 1);
do {
Tile *tile_cur = tile;
for (uint h_cur = h; h_cur != 0; --h_cur) {
if (*p >= tile_cur->type_height) tile_cur->type_height = *p;
p++;
tile_cur -= TileDiffXY(0, 1);
}
tile += TileDiffXY(1, 0);
} while (--w != 0);
break;
}
}
#include "table/genland.h"
static void CreateDesertOrRainForest()
{
TileIndex update_freq = MapSize() / 4;
const TileIndexDiffC *data;
for (TileIndex tile = 0; tile != MapSize(); ++tile) {
if ((tile % update_freq) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
for (data = _make_desert_or_rainforest_data;
data != endof(_make_desert_or_rainforest_data); ++data) {
TileIndex t = TILE_MASK(tile + ToTileIndexDiff(*data));
if (TileHeight(t) >= 4 || IsTileType(t, MP_WATER)) break;
}
if (data == endof(_make_desert_or_rainforest_data))
SetTropicZone(tile, TROPICZONE_DESERT);
}
for (uint i = 0; i != 256; i++) {
if ((i % 64) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
RunTileLoop();
}
for (TileIndex tile = 0; tile != MapSize(); ++tile) {
if ((tile % update_freq) == 0) IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
for (data = _make_desert_or_rainforest_data;
data != endof(_make_desert_or_rainforest_data); ++data) {
TileIndex t = TILE_MASK(tile + ToTileIndexDiff(*data));
if (IsTileType(t, MP_CLEAR) && IsClearGround(t, CLEAR_DESERT)) break;
}
if (data == endof(_make_desert_or_rainforest_data))
SetTropicZone(tile, TROPICZONE_RAINFOREST);
}
}
void GenerateLandscape(byte mode)
{
static const int gwp_desert_amount = 4 + 8;
if (mode == GW_HEIGHTMAP) {
SetGeneratingWorldProgress(GWP_LANDSCAPE, (_settings_game.game_creation.landscape == LT_TROPIC) ? 1 + gwp_desert_amount : 1);
LoadHeightmap(_file_to_saveload.name);
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
} else if (_settings_game.game_creation.land_generator == LG_TERRAGENESIS) {
SetGeneratingWorldProgress(GWP_LANDSCAPE, (_settings_game.game_creation.landscape == LT_TROPIC) ? 3 + gwp_desert_amount : 3);
GenerateTerrainPerlin();
} else {
switch (_settings_game.game_creation.landscape) {
case LT_ARCTIC: {
SetGeneratingWorldProgress(GWP_LANDSCAPE, 2);
uint32 r = Random();
for (uint i = ScaleByMapSize(GB(r, 0, 7) + 950); i != 0; --i) {
GenerateTerrain(2, 0);
}
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
uint flag = GB(r, 7, 2) | 4;
for (uint i = ScaleByMapSize(GB(r, 9, 7) + 450); i != 0; --i) {
GenerateTerrain(4, flag);
}
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
} break;
case LT_TROPIC: {
SetGeneratingWorldProgress(GWP_LANDSCAPE, 3 + gwp_desert_amount);
uint32 r = Random();
for (uint i = ScaleByMapSize(GB(r, 0, 7) + 170); i != 0; --i) {
GenerateTerrain(0, 0);
}
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
uint flag = GB(r, 7, 2) | 4;
for (uint i = ScaleByMapSize(GB(r, 9, 8) + 1700); i != 0; --i) {
GenerateTerrain(0, flag);
}
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
flag ^= 2;
for (uint i = ScaleByMapSize(GB(r, 17, 7) + 410); i != 0; --i) {
GenerateTerrain(3, flag);
}
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
} break;
default: {
SetGeneratingWorldProgress(GWP_LANDSCAPE, 1);
uint32 r = Random();
uint i = ScaleByMapSize(GB(r, 0, 7) + (3 - _settings_game.difficulty.quantity_sea_lakes) * 256 + 100);
for (; i != 0; --i) {
GenerateTerrain(_settings_game.difficulty.terrain_type, 0);
}
IncreaseGeneratingWorldProgress(GWP_LANDSCAPE);
} break;
}
}
ConvertGroundTilesIntoWaterTiles();
if (_settings_game.game_creation.landscape == LT_TROPIC) CreateDesertOrRainForest();
}
void OnTick_Town();
void OnTick_Trees();
void OnTick_Station();
void OnTick_Industry();
void OnTick_Players();
void OnTick_Train();
void CallLandscapeTick()
{
OnTick_Town();
OnTick_Trees();
OnTick_Station();
OnTick_Industry();
OnTick_Players();
OnTick_Train();
}
TileIndex AdjustTileCoordRandomly(TileIndex a, byte rng)
{
int rn = rng;
uint32 r = Random();
return TILE_MASK(TileXY(
TileX(a) + (GB(r, 0, 8) * rn * 2 >> 8) - rn,
TileY(a) + (GB(r, 8, 8) * rn * 2 >> 8) - rn
));
}
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