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/* $Id$ */

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/** @file newgrf_industrytiles.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "variables.h"

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#include "debug.h"

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#include "viewport_func.h"

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#include "landscape.h"

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#include "newgrf.h"

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#include "industry.h"

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#include "newgrf_commons.h"

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#include "newgrf_spritegroup.h"

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#include "newgrf_callbacks.h"

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#include "newgrf_industries.h"

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#include "newgrf_industrytiles.h"

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#include "newgrf_text.h"

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#include "industry_map.h"

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#include "clear_map.h"

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#include "sprite.h"

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#include "transparency.h"

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#include "functions.h"

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#include "town.h"

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#include "command_func.h"

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    27

#include "table/sprites.h"

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#include "table/strings.h"

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    30

static uint32 GetGRFParameter(IndustryGfx indtile_id, byte parameter)

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{

    32

	const IndustryTileSpec *indtspec = GetIndustryTileSpec(indtile_id);

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	const GRFFile *file = indtspec->grf_prop.grffile;

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    35

	if (parameter >= file->param_end) return 0;

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	return file->param[parameter];

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}

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/**

    40

 * Based on newhouses equivalent, but adapted for newindustries

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 * @param parameter from callback.  It's in fact a pair of coordinates

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 * @param tile TileIndex from which the callback was initiated

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 * @param index of the industry been queried for

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 * @return a construction of bits obeying the newgrf format

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 */

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uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index)

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{

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	if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required

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	bool is_same_industry = (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == index);

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    51

	return GetNearbyTileInformation(tile) | (is_same_industry ? 1 : 0) << 8;

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}

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/** This is the position of the tile relative to the northernmost tile of the industry.

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 * Format: 00yxYYXX

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 * Variable  Content

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 * x         the x offset from the northernmost tile

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 * XX        same, but stored in a byte instead of a nibble

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 * y         the y offset from the northernmost tile

    60

 * YY        same, but stored in a byte instead of a nibble

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 * @param tile TileIndex of the tile to evaluate

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 * @param ind_tile northernmost tile of the industry

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 */

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static uint32 GetRelativePosition(TileIndex tile, TileIndex ind_tile)

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{

    66

	byte x = TileX(tile) - TileX(ind_tile);

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	byte y = TileY(tile) - TileY(ind_tile);

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    69

	return ((y & 0xF) << 20) | ((x & 0xF) << 16) | (y << 8) | x;

    70

}

    71

    72

static uint32 IndustryTileGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)

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{

    74

	const Industry *inds = object->u.industry.ind;

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	TileIndex tile       = object->u.industry.tile;

    76

    77

	if (object->scope == VSG_SCOPE_PARENT) {

    78

		return IndustryGetVariable(object, variable, parameter, available);

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	}

    80

    81

	switch (variable) {

    82

		 /* Construction state of the tile: a value between 0 and 3 */

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		case 0x40 : return (IsTileType(tile, MP_INDUSTRY)) ? GetIndustryConstructionStage(tile) : 0;

    84

    85

		case 0x41 : return GetTerrainType(tile);

    86

    87

		/* Current town zone of the tile in the nearest town */

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		case 0x42 : return GetTownRadiusGroup(ClosestTownFromTile(tile, (uint)-1), tile);

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    90

		/* Relative position */

    91

		case 0x43 : return GetRelativePosition(tile, inds->xy);

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    93

		/* Animation frame. Like house variable 46 but can contain anything 0..FF. */

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		case 0x44 : return (IsTileType(tile, MP_INDUSTRY)) ? GetIndustryAnimationState(tile) : 0;

    95

    96

		/* Land info of nearby tiles */

    97

		case 0x60 : return GetNearbyIndustryTileInformation(parameter, tile, inds == NULL ? (IndustryID)INVALID_INDUSTRY : inds->index);

    98

    99

		/* Animation stage of nearby tiles */

   100

		case 0x61 : {

   101

			tile = GetNearbyTile(parameter, tile);

   102

			if (IsTileType(tile, MP_INDUSTRY) && GetIndustryByTile(tile) == inds) {

   103

				return GetIndustryAnimationState(tile);

   104

			}

   105

			return 0xFFFFFFFF;

   106

		}

   107

   108

		/* Get industry tile ID at offset */

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		case 0x62 : return GetIndustryIDAtOffset(GetNearbyTile(parameter, tile), inds);

   110

   111

		/* Read GRF parameter */

   112

		case 0x7F: return GetGRFParameter(GetIndustryGfx(tile), parameter);

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	}

   114

   115

	DEBUG(grf, 1, "Unhandled industry tile property 0x%X", variable);

   116

   117

	*available = false;

   118

	return (uint32)-1;

   119

}

   120

   121

static const SpriteGroup *IndustryTileResolveReal(const ResolverObject *object, const SpriteGroup *group)

   122

{

   123

	/* IndustryTile do not have 'real' groups.  Or do they?? */

   124

	return NULL;

   125

}

   126

   127

static uint32 IndustryTileGetRandomBits(const ResolverObject *object)

   128

{

   129

	const TileIndex tile = object->u.industry.tile;

   130

	if (tile == INVALID_TILE || !IsTileType(tile, MP_INDUSTRY)) return 0;

   131

	return (object->scope == VSG_SCOPE_SELF) ? GetIndustryRandomBits(tile) : GetIndustryByTile(tile)->random;

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}

   133

   134

static uint32 IndustryTileGetTriggers(const ResolverObject *object)

   135

{

   136

	const TileIndex tile = object->u.industry.tile;

   137

	if (tile == INVALID_TILE || !IsTileType(tile, MP_INDUSTRY)) return 0;

   138

	return (object->scope == VSG_SCOPE_SELF) ? GetIndustryTriggers(tile) : GetIndustryByTile(tile)->random_triggers;

   139

}

   140

   141

static void IndustryTileSetTriggers(const ResolverObject *object, int triggers)

   142

{

   143

	const TileIndex tile = object->u.industry.tile;

   144

	if (tile == INVALID_TILE || !IsTileType(tile, MP_INDUSTRY)) return;

   145

   146

	if (object->scope == VSG_SCOPE_SELF) {

   147

		SetIndustryTriggers(tile, triggers);

   148

	} else {

   149

		GetIndustryByTile(tile)->random_triggers = triggers;

   150

	}

   151

}

   152

   153

static void NewIndustryTileResolver(ResolverObject *res, IndustryGfx gfx, TileIndex tile, Industry *indus)

   154

{

   155

	res->GetRandomBits = IndustryTileGetRandomBits;

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	res->GetTriggers   = IndustryTileGetTriggers;

   157

	res->SetTriggers   = IndustryTileSetTriggers;

   158

	res->GetVariable   = IndustryTileGetVariable;

   159

	res->ResolveReal   = IndustryTileResolveReal;

   160

   161

	res->psa             = &indus->psa;

   162

	res->u.industry.tile = tile;

   163

	res->u.industry.ind  = indus;

   164

	res->u.industry.gfx  = gfx;

   165

	res->u.industry.type = indus->type;

   166

   167

	res->callback        = CBID_NO_CALLBACK;

   168

	res->callback_param1 = 0;

   169

	res->callback_param2 = 0;

   170

	res->last_value      = 0;

   171

	res->trigger         = 0;

   172

	res->reseed          = 0;

   173

}

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   175

void IndustryDrawTileLayout(const TileInfo *ti, const SpriteGroup *group, byte rnd_color, byte stage, IndustryGfx gfx)

   176

{

   177

	const DrawTileSprites *dts = group->g.layout.dts;

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	const DrawTileSeqStruct *dtss;

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   180

	SpriteID image = dts->ground.sprite;

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	SpriteID pal   = dts->ground.pal;

   182

   183

	if (IS_CUSTOM_SPRITE(image)) image += stage;

   184

   185

	if (GB(image, 0, SPRITE_WIDTH) != 0) DrawGroundSprite(image, pal);

   186

   187

	foreach_draw_tile_seq(dtss, dts->seq) {

   188

		if (GB(dtss->image.sprite, 0, SPRITE_WIDTH) == 0) continue;

   189

   190

		image = dtss->image.sprite;

   191

		pal   = dtss->image.pal;

   192

   193

		if (IS_CUSTOM_SPRITE(image)) image += stage;

   194

   195

		if (HasBit(image, PALETTE_MODIFIER_COLOR)) {

   196

			if (pal == 0) {

   197

				pal = GENERAL_SPRITE_COLOR(rnd_color);

   198

			}

   199

		} else {

   200

			pal = PAL_NONE;

   201

		}

   202

   203

		if ((byte)dtss->delta_z != 0x80) {

   204

			AddSortableSpriteToDraw(

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				image, pal,

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				ti->x + dtss->delta_x, ti->y + dtss->delta_y,

   207

				dtss->size_x, dtss->size_y,

   208

				dtss->size_z, ti->z + dtss->delta_z,

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				!HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(TO_INDUSTRIES)

   210

			);

   211

		} else {

   212

			AddChildSpriteScreen(image, pal, (byte)dtss->delta_x, (byte)dtss->delta_y, IsTransparencySet(TO_INDUSTRIES));

   213

		}

   214

	}

   215

}

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   217

uint16 GetIndustryTileCallback(CallbackID callback, uint32 param1, uint32 param2, IndustryGfx gfx_id, Industry *industry, TileIndex tile)

   218

{

   219

	ResolverObject object;

   220

	const SpriteGroup *group;

   221

   222

	NewIndustryTileResolver(&object, gfx_id, tile, industry);

   223

	object.callback = callback;

   224

	object.callback_param1 = param1;

   225

	object.callback_param2 = param2;

   226

   227

	group = Resolve(GetIndustryTileSpec(gfx_id)->grf_prop.spritegroup, &object);

   228

	if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;

   229

   230

	return group->g.callback.result;

   231

}

   232

   233

bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const IndustryTileSpec *inds)

   234

{

   235

	const SpriteGroup *group;

   236

	ResolverObject object;

   237

   238

	if (ti->tileh != SLOPE_FLAT) {

   239

		bool draw_old_one = true;

   240

		if (HasBit(inds->callback_flags, CBM_INDT_DRAW_FOUNDATIONS)) {

   241

			/* Called to determine the type (if any) of foundation to draw for industry tile */

   242

			uint32 callback_res = GetIndustryTileCallback(CBID_INDUSTRY_DRAW_FOUNDATIONS, 0, 0, gfx, i, ti->tile);

   243

			draw_old_one = callback_res != 0;

   244

		}

   245

   246

		if (draw_old_one) DrawFoundation(ti, FOUNDATION_LEVELED);

   247

	}

   248

   249

	NewIndustryTileResolver(&object, gfx, ti->tile, i);

   250

   251

	group = Resolve(inds->grf_prop.spritegroup, &object);

   252

	if (group == NULL || group->type != SGT_TILELAYOUT) {

   253

		return false;

   254

	} else {

   255

		/* Limit the building stage to the number of stages supplied. */

   256

		byte stage = GetIndustryConstructionStage(ti->tile);

   257

		stage = Clamp(stage - 4 + group->g.layout.num_sprites, 0, group->g.layout.num_sprites - 1);

   258

		IndustryDrawTileLayout(ti, group, i->random_color, stage, gfx);

   259

		return true;

   260

	}

   261

}

   262

   263

extern bool IsSlopeRefused(Slope current, Slope refused);

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   265

bool PerformIndustryTileSlopeCheck(TileIndex ind_base_tile, TileIndex ind_tile, const IndustryTileSpec *its, IndustryType type, IndustryGfx gfx, uint itspec_index)

   266

{

   267

	Industry ind;

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	ind.index = INVALID_INDUSTRY;

   269

	ind.xy = ind_base_tile;

   270

	ind.width = 0;

   271

	ind.type = type;

   272

   273

	uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_SHAPE_CHECK, 0, itspec_index, gfx, &ind, ind_tile);

   274

	if (callback_res == CALLBACK_FAILED) {

   275

		return !IsSlopeRefused(GetTileSlope(ind_tile, NULL), its->slopes_refused);

   276

	}

   277

	if (its->grf_prop.grffile->grf_version < 7) {

   279

	}

   280

   281

	/* Copy some parameters from the registers to the error message text ref. stack */

   282

	SwitchToErrorRefStack();

   283

	PrepareTextRefStackUsage(4);

   284

	SwitchToNormalRefStack();

   285

   286

	switch (callback_res) {

   287

		case 0x400: return true;

   288

		case 0x401: _error_message = STR_0239_SITE_UNSUITABLE;                 return false;

   289

		case 0x402: _error_message = STR_0317_CAN_ONLY_BE_BUILT_IN_RAINFOREST; return false;

   290

		case 0x403: _error_message = STR_0318_CAN_ONLY_BE_BUILT_IN_DESERT;     return false;

   291

		default: _error_message = GetGRFStringID(its->grf_prop.grffile->grfid, 0xD000 + callback_res); return false;

   292

	}

   293

}

   294

   295

void AnimateNewIndustryTile(TileIndex tile)

   296

{

   297

	Industry *ind = GetIndustryByTile(tile);

   298

	IndustryGfx gfx = GetIndustryGfx(tile);

   299

	const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);

   300

	byte animation_speed = itspec->animation_speed;

   301

   302

	if (HasBit(itspec->callback_flags, CBM_INDT_ANIM_SPEED)) {

   303

		uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIMATION_SPEED, 0, 0, gfx, ind, tile);

   304

		if (callback_res != CALLBACK_FAILED) animation_speed = Clamp(callback_res & 0xFF, 0, 16);

   305

	}

   306

   307

	/* An animation speed of 2 means the animation frame changes 4 ticks, and

   308

	 * increasing this value by one doubles the wait. 0 is the minimum value

   309

	 * allowed for animation_speed, which corresponds to 30ms, and 16 is the

   310

	 * maximum, corresponding to around 33 minutes. */

   311

	if ((_tick_counter % (1 << animation_speed)) != 0) return;

   312

   313

	bool frame_set_by_callback = false;

   314

	byte frame = GetIndustryAnimationState(tile);

   315

	uint16 num_frames = GB(itspec->animation_info, 0, 8);

   316

   317

	if (HasBit(itspec->callback_flags, CBM_INDT_ANIM_NEXT_FRAME)) {

   318

		uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIM_NEXT_FRAME, HasBit(itspec->animation_special_flags, 0) ? Random() : 0, 0, gfx, ind, tile);

   319

   320

		if (callback_res != CALLBACK_FAILED) {

   321

			frame_set_by_callback = true;

   322

   323

			switch (callback_res & 0xFF) {

   324

				case 0xFF:

   325

					DeleteAnimatedTile(tile);

   326

					break;

   327

				case 0xFE:

   328

					/* Carry on as normal. */

   329

					frame_set_by_callback = false;

   330

					break;

   331

				default:

   332

					frame = callback_res & 0xFF;

   333

					break;

   334

			}

   335

		}

   336

	}

   337

   338

	if (!frame_set_by_callback) {

   339

		if (frame < num_frames) {

   340

			frame++;

   341

		} else if (frame == num_frames && GB(itspec->animation_info, 8, 8) == 1) {

   342

			/* This animation loops, so start again from the beginning */

   343

			frame = 0;

   344

		} else {

   345

			/* This animation doesn't loop, so stay here */

   346

			DeleteAnimatedTile(tile);

   347

		}

   348

	}

   349

   350

	SetIndustryAnimationState(tile, frame);

   351

	MarkTileDirtyByTile(tile);

   352

}

   353

   354

static void ChangeIndustryTileAnimationFrame(TileIndex tile, IndustryAnimationTrigger iat, uint32 random_bits, IndustryGfx gfx, Industry *ind)

   355

{

   356

	uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIM_START_STOP, random_bits, iat, gfx, ind, tile);

   357

	if (callback_res == CALLBACK_FAILED) return;

   358

   359

	switch (callback_res & 0xFF) {

   360

		case 0xFD: /* Do nothing. */         break;

   361

		case 0xFE: AddAnimatedTile(tile);    break;

   362

		case 0xFF: DeleteAnimatedTile(tile); break;

   363

		default:

   364

			SetIndustryAnimationState(tile, callback_res & 0xFF);

   365

			AddAnimatedTile(tile);

   366

			break;

   367

	}

   368

}

   369

   370

bool StartStopIndustryTileAnimation(TileIndex tile, IndustryAnimationTrigger iat, uint32 random)

   371

{

   372

	IndustryGfx gfx = GetIndustryGfx(tile);

   373

	const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);

   374

   375

	if (!HasBit(itspec->animation_triggers, iat)) return false;

   376

   377

	Industry *ind = GetIndustryByTile(tile);

   378

	ChangeIndustryTileAnimationFrame(tile, iat, random, gfx, ind);

   379

	return true;

   380

}

   381

   382

bool StartStopIndustryTileAnimation(const Industry *ind, IndustryAnimationTrigger iat)

   383

{

   384

	bool ret = true;

   385

	uint32 random = Random();

   386

	BEGIN_TILE_LOOP(tile, ind->width, ind->height, ind->xy)

   387

		if (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == ind->index) {

   388

			if (StartStopIndustryTileAnimation(tile, iat, random)) {

   389

				SB(random, 0, 16, Random());

   390

			} else {

   391

				ret = false;

   392

			}

   393

		}

   394

	END_TILE_LOOP(tile, ind->width, ind->height, ind->xy)

   395

   396

	return ret;

   397

}

   398

   399

static void DoTriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger, Industry *ind)

   400

{

   401

	ResolverObject object;

   402

   403

	IndustryGfx gfx = GetIndustryGfx(tile);

   404

	const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);

   405

   406

	NewIndustryTileResolver(&object, gfx, tile, ind);

   407

   408

	object.callback = CBID_RANDOM_TRIGGER;

   409

	object.trigger = trigger;

   410

   411

	const SpriteGroup *group = Resolve(itspec->grf_prop.spritegroup, &object);

   412

	if (group == NULL) return;

   413

   414

	byte new_random_bits = Random();

   415

	byte random_bits = GetIndustryRandomBits(tile);

   416

	random_bits &= ~object.reseed;

   417

	random_bits |= new_random_bits & object.reseed;

   418

	SetIndustryRandomBits(tile, random_bits);

   419

}

   420

   421

void TriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger)

   422

{

   423

	DoTriggerIndustryTile(tile, trigger, GetIndustryByTile(tile));

   424

}

   425

   426

void TriggerIndustry(Industry *ind, IndustryTileTrigger trigger)

   427

{

   428

	BEGIN_TILE_LOOP(tile, ind->width, ind->height, ind->xy)

   429

		if (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == ind->index) {

   430

			DoTriggerIndustryTile(tile, trigger, ind);

   431

		}

   432

	END_TILE_LOOP(tile, ind->width, ind->height, ind->xy)

   433

}