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/* $Id$ */

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/** @file terraform_gui.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "bridge_map.h"

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#include "clear_map.h"

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#include "table/sprites.h"

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#include "table/strings.h"

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#include "functions.h"

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#include "player.h"

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#include "tile.h"

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#include "gui.h"

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#include "viewport.h"

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#include "gfx.h"

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#include "sound.h"

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#include "command.h"

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#include "vehicle.h"

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#include "signs.h"

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#include "variables.h"

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void CcTerraform(bool success, TileIndex tile, uint32 p1, uint32 p2)

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{

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	if (success) {

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		SndPlayTileFx(SND_1F_SPLAT, tile);

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	} else {

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		SetRedErrorSquare(_terraform_err_tile);

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	}

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}

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/** Scenario editor command that generates desert areas */

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static void GenerateDesertArea(TileIndex end, TileIndex start)

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{

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	int size_x, size_y;

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	int sx = TileX(start);

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	int sy = TileY(start);

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	int ex = TileX(end);

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	int ey = TileY(end);

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	if (_game_mode != GM_EDITOR) return;

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	if (ex < sx) Swap(ex, sx);

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	if (ey < sy) Swap(ey, sy);

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	size_x = (ex - sx) + 1;

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	size_y = (ey - sy) + 1;

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	_generating_world = true;

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	BEGIN_TILE_LOOP(tile, size_x, size_y, TileXY(sx, sy)) {

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		if (GetTileType(tile) != MP_WATER) {

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			SetTropicZone(tile, (_ctrl_pressed) ? TROPICZONE_INVALID : TROPICZONE_DESERT);

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			DoCommandP(tile, 0, 0, NULL, CMD_LANDSCAPE_CLEAR);

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			MarkTileDirtyByTile(tile);

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		}

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	} END_TILE_LOOP(tile, size_x, size_y, 0);

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	_generating_world = false;

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}

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/** Scenario editor command that generates rocky areas */

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static void GenerateRockyArea(TileIndex end, TileIndex start)

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{

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	int size_x, size_y;

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	bool success = false;

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	int sx = TileX(start);

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	int sy = TileY(start);

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	int ex = TileX(end);

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	int ey = TileY(end);

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	if (_game_mode != GM_EDITOR) return;

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	if (ex < sx) Swap(ex, sx);

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	if (ey < sy) Swap(ey, sy);

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	size_x = (ex - sx) + 1;

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	size_y = (ey - sy) + 1;

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	BEGIN_TILE_LOOP(tile, size_x, size_y, TileXY(sx, sy)) {

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		switch (GetTileType(tile)) {

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			case MP_CLEAR:

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			case MP_TREES:

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				MakeClear(tile, CLEAR_ROCKS, 3);

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				break;

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			default: continue;

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		}

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		MarkTileDirtyByTile(tile);

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		success = true;

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	} END_TILE_LOOP(tile, size_x, size_y, 0);

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	if (success) SndPlayTileFx(SND_1F_SPLAT, end);

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}

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/**

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 * A central place to handle all X_AND_Y dragged GUI functions.

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 * @param e WindowEvent variable holding in its higher bits (excluding the lower

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 * 4, since that defined the X_Y drag) the type of action to be performed

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 * @return Returns true if the action was found and handled, and false otherwise. This

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 * allows for additional implements that are more local. For example X_Y drag

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 * of convertrail which belongs in rail_gui.cpp and not terraform_gui.cpp

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 **/

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bool GUIPlaceProcDragXY(const WindowEvent *e)

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{

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	TileIndex start_tile = e->we.place.starttile;

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	TileIndex end_tile = e->we.place.tile;

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	switch (e->we.place.select_proc) {

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		case DDSP_DEMOLISH_AREA:

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			DoCommandP(end_tile, start_tile, 0, CcPlaySound10, CMD_CLEAR_AREA | CMD_MSG(STR_00B5_CAN_T_CLEAR_THIS_AREA));

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			break;

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		case DDSP_LEVEL_AREA:

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			DoCommandP(end_tile, start_tile, 0, CcPlaySound10, CMD_LEVEL_LAND);

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			break;

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		case DDSP_CREATE_ROCKS:

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			GenerateRockyArea(end_tile, start_tile);

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			break;

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		case DDSP_CREATE_DESERT:

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			GenerateDesertArea(end_tile, start_tile);

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			break;

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		case DDSP_CREATE_WATER:

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			DoCommandP(end_tile, start_tile, _ctrl_pressed, CcBuildCanal, CMD_BUILD_CANAL | CMD_MSG(STR_CANT_BUILD_CANALS));

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			break;

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		default:

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			return false;

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	}

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	return true;

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}

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typedef void OnButtonClick(Window *w);

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static const uint16 _terraform_keycodes[] = {

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	'Q',

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	'W',

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	'E',

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	'D',

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	'U',

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	'I',

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	'O',

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};

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void PlaceProc_DemolishArea(TileIndex tile)

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{

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	VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_DEMOLISH_AREA);

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}

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static void PlaceProc_RaiseLand(TileIndex tile)

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{

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	DoCommandP(

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		tile, SLOPE_N, 1, CcTerraform,

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		CMD_TERRAFORM_LAND | CMD_MSG(STR_0808_CAN_T_RAISE_LAND_HERE)

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	);

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}

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static void PlaceProc_LowerLand(TileIndex tile)

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{

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	DoCommandP(

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		tile, SLOPE_N, 0, CcTerraform,

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		CMD_TERRAFORM_LAND | CMD_MSG(STR_0809_CAN_T_LOWER_LAND_HERE)

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	);

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}

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void PlaceProc_LevelLand(TileIndex tile)

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{

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	VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_LEVEL_AREA);

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}

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static void TerraformClick_Lower(Window *w)

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{

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	HandlePlacePushButton(w, 4, ANIMCURSOR_LOWERLAND, VHM_POINT, PlaceProc_LowerLand);

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}

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static void TerraformClick_Raise(Window *w)

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{

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	HandlePlacePushButton(w, 5, ANIMCURSOR_RAISELAND, VHM_POINT, PlaceProc_RaiseLand);

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}

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static void TerraformClick_Level(Window *w)

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{

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	HandlePlacePushButton(w, 6, SPR_CURSOR_LEVEL_LAND, VHM_POINT, PlaceProc_LevelLand);

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}

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static void TerraformClick_Dynamite(Window *w)

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{

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	HandlePlacePushButton(w, 7, ANIMCURSOR_DEMOLISH , VHM_RECT, PlaceProc_DemolishArea);

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}

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static void TerraformClick_BuyLand(Window *w)

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{

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	HandlePlacePushButton(w, 8, SPR_CURSOR_BUY_LAND, VHM_RECT, PlaceProc_BuyLand);

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}

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static void TerraformClick_Trees(Window *w)

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{

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	/* This button is NOT a place-push-button, so don't treat it as such */

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	ShowBuildTreesToolbar();

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}

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static void TerraformClick_PlaceSign(Window *w)

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{

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	HandlePlacePushButton(w, 10, SPR_CURSOR_SIGN, VHM_RECT, PlaceProc_Sign);

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}

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static OnButtonClick * const _terraform_button_proc[] = {

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	TerraformClick_Lower,

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	TerraformClick_Raise,

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	TerraformClick_Level,

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	TerraformClick_Dynamite,

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	TerraformClick_BuyLand,

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	TerraformClick_Trees,

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	TerraformClick_PlaceSign,

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};

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static void TerraformToolbWndProc(Window *w, WindowEvent *e)

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{

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	switch (e->event) {

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	case WE_PAINT:

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		DrawWindowWidgets(w);

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		break;

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	case WE_CLICK:

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		if (e->we.click.widget >= 4) _terraform_button_proc[e->we.click.widget - 4](w);

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		break;

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	case WE_KEYPRESS: {

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		uint i;

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		for (i = 0; i != lengthof(_terraform_keycodes); i++) {

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			if (e->we.keypress.keycode == _terraform_keycodes[i]) {

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				e->we.keypress.cont = false;

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				_terraform_button_proc[i](w);

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				break;

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			}

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		}

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		break;

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	}

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	case WE_PLACE_OBJ:

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		_place_proc(e->we.place.tile);

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		return;

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	case WE_PLACE_DRAG:

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		VpSelectTilesWithMethod(e->we.place.pt.x, e->we.place.pt.y, e->we.place.select_method);

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		break;

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	case WE_PLACE_MOUSEUP:

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		if (e->we.place.pt.x != -1) {

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			switch (e->we.place.select_proc) {

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				case DDSP_DEMOLISH_AREA:

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				case DDSP_LEVEL_AREA:

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					GUIPlaceProcDragXY(e);

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					break;

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			}

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		}

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		break;

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	case WE_ABORT_PLACE_OBJ:

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		w->RaiseButtons();

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		break;

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	}

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}

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static const Widget _terraform_widgets[] = {

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{ WWT_CLOSEBOX,   RESIZE_NONE,     7,   0,  10,   0,  13, STR_00C5,                STR_018B_CLOSE_WINDOW},

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{  WWT_CAPTION,   RESIZE_NONE,     7,  11, 145,   0,  13, STR_LANDSCAPING_TOOLBAR, STR_018C_WINDOW_TITLE_DRAG_THIS},

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{WWT_STICKYBOX,   RESIZE_NONE,     7, 146, 157,   0,  13, STR_NULL,                STR_STICKY_BUTTON},

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{    WWT_PANEL,   RESIZE_NONE,     7,  66,  69,  14,  35, 0x0,                    STR_NULL},

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{   WWT_IMGBTN,   RESIZE_NONE,     7,   0,  21,  14,  35, SPR_IMG_TERRAFORM_DOWN,  STR_018E_LOWER_A_CORNER_OF_LAND},

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{   WWT_IMGBTN,   RESIZE_NONE,     7,  22,  43,  14,  35, SPR_IMG_TERRAFORM_UP,    STR_018F_RAISE_A_CORNER_OF_LAND},

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{   WWT_IMGBTN,   RESIZE_NONE,     7,  44,  65,  14,  35, SPR_IMG_LEVEL_LAND,      STR_LEVEL_LAND_TOOLTIP},

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{   WWT_IMGBTN,   RESIZE_NONE,     7,  70,  91,  14,  35, SPR_IMG_DYNAMITE,        STR_018D_DEMOLISH_BUILDINGS_ETC},

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{   WWT_IMGBTN,   RESIZE_NONE,     7,  92, 113,  14,  35, SPR_IMG_BUY_LAND,        STR_0329_PURCHASE_LAND_FOR_FUTURE},

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{   WWT_IMGBTN,   RESIZE_NONE,     7, 114, 135,  14,  35, SPR_IMG_PLANTTREES,      STR_0185_PLANT_TREES_PLACE_SIGNS},

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{   WWT_IMGBTN,   RESIZE_NONE,     7, 136, 157,  14,  35, SPR_IMG_SIGN,            STR_0289_PLACE_SIGN},

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{   WIDGETS_END},

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};

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static const WindowDesc _terraform_desc = {

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	WDP_ALIGN_TBR, 22 + 36, 158, 36, 158, 36,

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	WC_SCEN_LAND_GEN, WC_NONE,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_STICKY_BUTTON,

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	_terraform_widgets,

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	TerraformToolbWndProc

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};

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void ShowTerraformToolbar(Window *link)

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{

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	if (!IsValidPlayer(_current_player)) return;

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	Window *w = AllocateWindowDescFront(&_terraform_desc, 0);

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	if (w != NULL && link != NULL) {

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		/* Align the terraform toolbar under the main toolbar and put the linked

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		 * toolbar to left of it

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		 */

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		w->top = 22;

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		link->left = w->left - link->width;

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		SetWindowDirty(link);

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	}

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}