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/* $Id$ */

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/** @file newgrf_industrytiles.cpp NewGRF handling of industry tiles. */

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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"

     9

#include "viewport_func.h"

    10

#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_sound.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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#include "animated_tile_func.h"

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#include "water.h"

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    30

#include "table/sprites.h"

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#include "table/strings.h"

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    33

/**

    34

 * Based on newhouses equivalent, but adapted for newindustries

    35

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

    36

 * @param tile TileIndex from which the callback was initiated

    37

 * @param index of the industry been queried for

    38

 * @return a construction of bits obeying the newgrf format

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 */

    40

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

    41

{

    42

	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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    45

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

    46

}

    47

    48

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

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 * Format: 00yxYYXX

    50

 * Variable  Content

    51

 * x         the x offset from the northernmost tile

    52

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

    53

 * y         the y offset from the northernmost tile

    54

 * 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

    57

 */

    58

static uint32 GetRelativePosition(TileIndex tile, TileIndex ind_tile)

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{

    60

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

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

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    63

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

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}

    65

    66

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

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{

    68

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

    69

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

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    71

	if (object->scope == VSG_SCOPE_PARENT) {

    72

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

    73

	}

    74

    75

	switch (variable) {

    76

		 /* 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;

    78

    79

		case 0x41 : return GetTerrainType(tile);

    80

    81

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

    82

		case 0x42 : return GetTownRadiusGroup(ClosestTownFromTile(tile, UINT_MAX), tile);

    83

    84

		/* Relative position */

    85

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

    86

    87

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

    88

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

    89

    90

		/* Land info of nearby tiles */

    91

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

    92

    93

		/* Animation stage of nearby tiles */

    94

		case 0x61 : {

    95

			tile = GetNearbyTile(parameter, tile);

    96

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

    97

				return GetIndustryAnimationState(tile);

    98

			}

    99

			return 0xFFFFFFFF;

   100

		}

   101

   102

		/* Get industry tile ID at offset */

   103

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

   104

	}

   105

   106

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

   107

   108

	*available = false;

   109

	return (uint32)-1;

   110

}

   111

   112

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

   113

{

   114

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

   115

	return NULL;

   116

}

   117

   118

static uint32 IndustryTileGetRandomBits(const ResolverObject *object)

   119

{

   120

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

   121

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

   122

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

   123

}

   124

   125

static uint32 IndustryTileGetTriggers(const ResolverObject *object)

   126

{

   127

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

   128

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

   129

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

   130

}

   131

   132

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

   133

{

   134

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

   135

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

   136

   137

	if (object->scope == VSG_SCOPE_SELF) {

   138

		SetIndustryTriggers(tile, triggers);

   139

	} else {

   140

		GetIndustryByTile(tile)->random_triggers = triggers;

   141

	}

   142

}

   143

   144

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

   145

{

   146

	res->GetRandomBits = IndustryTileGetRandomBits;

   147

	res->GetTriggers   = IndustryTileGetTriggers;

   148

	res->SetTriggers   = IndustryTileSetTriggers;

   149

	res->GetVariable   = IndustryTileGetVariable;

   150

	res->ResolveReal   = IndustryTileResolveReal;

   151

   152

	res->psa             = &indus->psa;

   153

	res->u.industry.tile = tile;

   154

	res->u.industry.ind  = indus;

   155

	res->u.industry.gfx  = gfx;

   156

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

   157

   158

	res->callback        = CBID_NO_CALLBACK;

   159

	res->callback_param1 = 0;

   160

	res->callback_param2 = 0;

   161

	res->last_value      = 0;

   162

	res->trigger         = 0;

   163

	res->reseed          = 0;

   164

	res->count           = 0;

   165

   166

	const IndustryTileSpec *its = GetIndustryTileSpec(gfx);

   167

	res->grffile         = (its != NULL ? its->grf_prop.grffile : NULL);

   168

}

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   170

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

   171

{

   172

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

   173

	const DrawTileSeqStruct *dtss;

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   175

	SpriteID image = dts->ground.sprite;

   176

	SpriteID pal   = dts->ground.pal;

   177

   178

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

   179

   180

	if (GB(image, 0, SPRITE_WIDTH) != 0) {

   181

		/* If the ground sprite is the default flat water sprite, draw also canal/river borders

   182

		 * Do not do this if the tile's WaterClass is 'land'. */

   183

		if (image == SPR_FLAT_WATER_TILE && IsIndustryTileOnWater(ti->tile)) {

   184

			DrawWaterClassGround(ti);

   185

		} else {

   186

			DrawGroundSprite(image, GroundSpritePaletteTransform(image, pal, GENERAL_SPRITE_COLOR(rnd_color)));

   187

		}

   188

	}

   189

   190

	foreach_draw_tile_seq(dtss, dts->seq) {

   191

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

   192

   193

		image = dtss->image.sprite;

   194

		pal   = dtss->image.pal;

   195

   196

		/* Stop drawing sprite sequence once we meet a sprite that doesn't have to be opaque */

   197

		if (IsInvisibilitySet(TO_INDUSTRIES) && !HasBit(image, SPRITE_MODIFIER_OPAQUE)) return;

   198

   199

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

   200

   201

		pal = SpriteLayoutPaletteTransform(image, pal, GENERAL_SPRITE_COLOR(rnd_color));

   202

   203

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

   204

			AddSortableSpriteToDraw(

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				image, pal,

   206

				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,

   209

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

   210

			);

   211

		} else {

   212

			/* For industries and houses delta_x and delta_y are unsigned */

   213

			AddChildSpriteScreen(image, pal, (byte)dtss->delta_x, (byte)dtss->delta_y, !HasBit(image, SPRITE_MODIFIER_OPAQUE) && IsTransparencySet(TO_INDUSTRIES));

   214

		}

   215

	}

   216

}

   217

   218

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

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{

   220

	ResolverObject object;

   221

	const SpriteGroup *group;

   222

   223

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

   224

	object.callback = callback;

   225

	object.callback_param1 = param1;

   226

	object.callback_param2 = param2;

   227

   228

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

   229

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

   230

   231

	return group->g.callback.result;

   232

}

   233

   234

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

   235

{

   236

	const SpriteGroup *group;

   237

	ResolverObject object;

   238

   239

	if (ti->tileh != SLOPE_FLAT) {

   240

		bool draw_old_one = true;

   241

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

   242

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

   243

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

   244

			draw_old_one = callback_res != 0;

   245

		}

   246

   247

		if (draw_old_one) DrawFoundation(ti, FOUNDATION_LEVELED);

   248

	}

   249

   250

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

   251

   252

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

   253

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

   254

		return false;

   255

	} else {

   256

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

   257

		byte stage = GetIndustryConstructionStage(ti->tile);

   258

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

   259

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

   260

		return true;

   261

	}

   262

}

   263

   264

extern bool IsSlopeRefused(Slope current, Slope refused);

   265

   266

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

   267

{

   268

	Industry ind;

   269

	ind.index = INVALID_INDUSTRY;

   270

	ind.xy = ind_base_tile;

   271

	ind.width = 0;

   272

	ind.type = type;

   273

   274

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

   275

	if (callback_res == CALLBACK_FAILED) {

   276

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

   277

	}

   278

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

   279

		return callback_res != 0;

   280

	}

   281

	if (callback_res == 0x400) return true;

   282

   283

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

   284

	SwitchToErrorRefStack();

   285

	PrepareTextRefStackUsage(4);

   286

	SwitchToNormalRefStack();

   287

   288

	switch (callback_res) {

   289

		case 0x401: _error_message = STR_0239_SITE_UNSUITABLE;                 return false;

   290

		case 0x402: _error_message = STR_0317_CAN_ONLY_BE_BUILT_IN_RAINFOREST; return false;

   291

		case 0x403: _error_message = STR_0318_CAN_ONLY_BE_BUILT_IN_DESERT;     return false;

   292

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

   293

	}

   294

}

   295

   296

void AnimateNewIndustryTile(TileIndex tile)

   297

{

   298

	Industry *ind = GetIndustryByTile(tile);

   299

	IndustryGfx gfx = GetIndustryGfx(tile);

   300

	const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);

   301

	byte animation_speed = itspec->animation_speed;

   302

   303

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

   304

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

   305

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

   306

	}

   307

   308

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

   309

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

   310

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

   311

	 * maximum, corresponding to around 33 minutes. */

   312

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

   313

   314

	bool frame_set_by_callback = false;

   315

	byte frame = GetIndustryAnimationState(tile);

   316

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

   317

   318

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

   319

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

   320

   321

		if (callback_res != CALLBACK_FAILED) {

   322

			frame_set_by_callback = true;

   323

   324

			switch (callback_res & 0xFF) {

   325

				case 0xFF:

   326

					DeleteAnimatedTile(tile);

   327

					break;

   328

				case 0xFE:

   329

					/* Carry on as normal. */

   330

					frame_set_by_callback = false;

   331

					break;

   332

				default:

   333

					frame = callback_res & 0xFF;

   334

					break;

   335

			}

   336

   337

			/* If the lower 7 bits of the upper byte of the callback

   338

			 * result are not empty, it is a sound effect. */

   339

			if (GB(callback_res, 8, 7) != 0) PlayTileSound(itspec->grf_prop.grffile, GB(callback_res, 8, 7), tile);

   340

		}

   341

	}

   342

   343

	if (!frame_set_by_callback) {

   344

		if (frame < num_frames) {

   345

			frame++;

   346

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

   347

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

   348

			frame = 0;

   349

		} else {

   350

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

   351

			DeleteAnimatedTile(tile);

   352

		}

   353

	}

   354

   355

	SetIndustryAnimationState(tile, frame);

   356

	MarkTileDirtyByTile(tile);

   357

}

   358

   359

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

   360

{

   361

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

   362

	if (callback_res == CALLBACK_FAILED) return;

   363

   364

	switch (callback_res & 0xFF) {

   365

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

   366

		case 0xFE: AddAnimatedTile(tile);    break;

   367

		case 0xFF: DeleteAnimatedTile(tile); break;

   368

		default:

   369

			SetIndustryAnimationState(tile, callback_res & 0xFF);

   370

			AddAnimatedTile(tile);

   371

			break;

   372

	}

   373

   374

	/* If the lower 7 bits of the upper byte of the callback

   375

	 * result are not empty, it is a sound effect. */

   376

	if (GB(callback_res, 8, 7) != 0) PlayTileSound(itspec->grf_prop.grffile, GB(callback_res, 8, 7), tile);

   377

}

   378

   379

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

   380

{

   381

	IndustryGfx gfx = GetIndustryGfx(tile);

   382

	const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);

   383

   384

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

   385

   386

	Industry *ind = GetIndustryByTile(tile);

   387

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

   388

	return true;

   389

}

   390

   391

bool StartStopIndustryTileAnimation(const Industry *ind, IndustryAnimationTrigger iat)

   392

{

   393

	bool ret = true;

   394

	uint32 random = Random();

   395

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

   396

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

   397

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

   398

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

   399

			} else {

   400

				ret = false;

   401

			}

   402

		}

   403

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

   404

   405

	return ret;

   406

}

   407

   408

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

   409

{

   410

	ResolverObject object;

   411

   412

	IndustryGfx gfx = GetIndustryGfx(tile);

   413

	const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx);

   414

   415

	if (itspec->grf_prop.spritegroup == NULL) return;

   416

   417

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

   418

   419

	object.callback = CBID_RANDOM_TRIGGER;

   420

	object.trigger = trigger;

   421

   422

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

   423

	if (group == NULL) return;

   424

   425

	byte new_random_bits = Random();

   426

	byte random_bits = GetIndustryRandomBits(tile);

   427

	random_bits &= ~object.reseed;

   428

	random_bits |= new_random_bits & object.reseed;

   429

	SetIndustryRandomBits(tile, random_bits);

   430

}

   431

   432

void TriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger)

   433

{

   434

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

   435

}

   436

   437

void TriggerIndustry(Industry *ind, IndustryTileTrigger trigger)

   438

{

   439

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

   440

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

   441

			DoTriggerIndustryTile(tile, trigger, ind);

   442

		}

   443

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

   444

}