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#include "stdafx.h"

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#include "ttd.h"

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#include "table/strings.h"

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#include "map.h"

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#include "window.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 "command.h"

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#include "sound.h"

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static struct BridgeData {

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	int count;

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	TileIndex start_tile;

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	TileIndex end_tile;

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	byte type;

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	byte indexes[MAX_BRIDGES];

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	int32 costs[MAX_BRIDGES];

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} _bridge;

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extern const uint16 _bridge_type_price_mod[MAX_BRIDGES];

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extern const PalSpriteID _bridge_sprites[MAX_BRIDGES];

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extern const uint16 _bridge_speeds[MAX_BRIDGES];

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extern const StringID _bridge_material[MAX_BRIDGES];

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void CcBuildBridge(bool success, uint tile, uint32 p1, uint32 p2)

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{

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	if (success) SndPlayTileFx(SND_27_BLACKSMITH_ANVIL, tile);

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}

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static void BuildBridge(Window *w, int i)

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{

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	DeleteWindow(w);

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	DoCommandP(_bridge.end_tile, _bridge.start_tile, _bridge.indexes[i] | (_bridge.type << 8), CcBuildBridge,

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		CMD_BUILD_BRIDGE | CMD_AUTO | CMD_MSG(STR_5015_CAN_T_BUILD_BRIDGE_HERE));

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}

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static void BuildBridgeWndProc(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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		int i;

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		DrawWindowWidgets(w);

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		for(i=0; i < 4 && i + w->vscroll.pos < _bridge.count; i++) {

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			int ind = _bridge.indexes[i + w->vscroll.pos];

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			SetDParam(2, _bridge.costs[i + w->vscroll.pos]);

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			SetDParam(1, (_bridge_speeds[ind] >> 4) * 10);

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			SetDParam(0, _bridge_material[ind]);

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			DrawSprite(_bridge_sprites[ind], 3, 15 + i * 22);

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			DrawString(44, 15 + i*22 , STR_500D, 0);

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		}

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	} break;

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	case WE_KEYPRESS: {

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		uint i = e->keypress.keycode - '1';

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		if (i < 9 && i < (uint)_bridge.count) {

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			e->keypress.cont = false;

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			BuildBridge(w, i);

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		}

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		break;

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	}

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	case WE_CLICK:

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	 if (e->click.widget == 2) {

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			uint ind = ((int)e->click.pt.y - 14) / 22;

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			if (ind < 4 && (ind += w->vscroll.pos) < (uint)_bridge.count)

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				BuildBridge(w, ind);

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		}

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		break;

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	}

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}

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static const Widget _build_bridge_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,   199,     0,    13, STR_100D_SELECT_RAIL_BRIDGE,	STR_018C_WINDOW_TITLE_DRAG_THIS},

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{     WWT_MATRIX,   RESIZE_NONE,     7,     0,   187,    14,   101, 0x401,												STR_101F_BRIDGE_SELECTION_CLICK},

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{  WWT_SCROLLBAR,   RESIZE_NONE,     7,   188,   199,    14,   101, 0x0,													STR_0190_SCROLL_BAR_SCROLLS_LIST},

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{   WIDGETS_END},

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};

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static const WindowDesc _build_bridge_desc = {

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	-1, -1, 200, 102,

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	WC_BUILD_BRIDGE,WC_BUILD_TOOLBAR,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,

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	_build_bridge_widgets,

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	BuildBridgeWndProc

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};

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static const Widget _build_road_bridge_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,   199,     0,    13, STR_1803_SELECT_ROAD_BRIDGE,	STR_018C_WINDOW_TITLE_DRAG_THIS},

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{     WWT_MATRIX,   RESIZE_NONE,     7,     0,   187,    14,   101, 0x401,												STR_101F_BRIDGE_SELECTION_CLICK},

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{  WWT_SCROLLBAR,   RESIZE_NONE,     7,   188,   199,    14,   101, 0x0,													STR_0190_SCROLL_BAR_SCROLLS_LIST},

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{   WIDGETS_END},

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};

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static const WindowDesc _build_road_bridge_desc = {

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	-1, -1, 200, 102,

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	WC_BUILD_BRIDGE,WC_BUILD_TOOLBAR,

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	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,

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	_build_road_bridge_widgets,

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	BuildBridgeWndProc

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};

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void ShowBuildBridgeWindow(uint start, uint end, byte bridge_type)

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{

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	int j = 0;

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	int32 ret;

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	uint16 errmsg;

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	DeleteWindowById(WC_BUILD_BRIDGE, 0);

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	_bridge.type = bridge_type;

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	_bridge.start_tile = start;

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	_bridge.end_tile = end;

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	errmsg = 0xFFFF;

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	// only query bridge building possibility once, result is the same for all bridges!

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	// returns CMD_ERROR on failure, and priCe on success

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	ret = DoCommandByTile(end, start, (bridge_type << 8), DC_AUTO | DC_QUERY_COST, CMD_BUILD_BRIDGE);

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	if (ret == CMD_ERROR) {

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		errmsg = _error_message;

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	}

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	// check which bridges can be built

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	else {

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		int bridge_len;			// length of the middle parts of the bridge

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		int tot_bridge_len;	// total length of bridge

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		// get absolute bridge length

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		bridge_len = GetBridgeLength(start, end);

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		tot_bridge_len = bridge_len + 2;

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		tot_bridge_len = CalcBridgeLenCostFactor(tot_bridge_len);

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		for (bridge_type = 0; bridge_type != MAX_BRIDGES; bridge_type++) {	// loop for all bridgetypes

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			if (CheckBridge_Stuff(bridge_type, bridge_len)) {

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				// bridge is accepted, add to list

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				// add to terraforming & bulldozing costs the cost of the bridge itself (not computed with DC_QUERY_COST)

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				_bridge.costs[j] = ret + (((int64)tot_bridge_len * _price.build_bridge * _bridge_type_price_mod[bridge_type]) >> 8);

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				_bridge.indexes[j] = bridge_type;

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				j++;

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			}

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		}

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	}

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	_bridge.count = j;

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	if (j != 0) {

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		Window *w = AllocateWindowDesc((_bridge.type & 0x80) ? &_build_road_bridge_desc : &_build_bridge_desc);

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		w->vscroll.cap = 4;

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		w->vscroll.count = (byte)j;

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	} else {

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		ShowErrorMessage(errmsg, STR_5015_CAN_T_BUILD_BRIDGE_HERE,

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			TileX(end) * 16, TileY(end) * 16);

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	}

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}