/* $Id$ */ /* * This file is part of OpenTTD. * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. */ /** @file newgrf_industrytiles.cpp NewGRF handling of industry tiles. */ #include "stdafx.h" #include "variables.h" #include "debug.h" #include "viewport_func.h" #include "landscape.h" #include "newgrf.h" #include "newgrf_commons.h" #include "newgrf_industries.h" #include "newgrf_industrytiles.h" #include "newgrf_sound.h" #include "newgrf_text.h" #include "industry.h" #include "functions.h" #include "town.h" #include "command_func.h" #include "animated_tile_func.h" #include "water.h" #include "table/strings.h" /** * Based on newhouses equivalent, but adapted for newindustries * @param parameter from callback. It's in fact a pair of coordinates * @param tile TileIndex from which the callback was initiated * @param index of the industry been queried for * @return a construction of bits obeying the newgrf format */ uint32 GetNearbyIndustryTileInformation(byte parameter, TileIndex tile, IndustryID index) { if (parameter != 0) tile = GetNearbyTile(parameter, tile); // only perform if it is required bool is_same_industry = (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == index); return GetNearbyTileInformation(tile) | (is_same_industry ? 1 : 0) << 8; } /** This is the position of the tile relative to the northernmost tile of the industry. * Format: 00yxYYXX * Variable Content * x the x offset from the northernmost tile * XX same, but stored in a byte instead of a nibble * y the y offset from the northernmost tile * YY same, but stored in a byte instead of a nibble * @param tile TileIndex of the tile to evaluate * @param ind_tile northernmost tile of the industry */ static uint32 GetRelativePosition(TileIndex tile, TileIndex ind_tile) { byte x = TileX(tile) - TileX(ind_tile); byte y = TileY(tile) - TileY(ind_tile); return ((y & 0xF) << 20) | ((x & 0xF) << 16) | (y << 8) | x; } static uint32 IndustryTileGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) { const Industry *inds = object->u.industry.ind; TileIndex tile = object->u.industry.tile; if (object->scope == VSG_SCOPE_PARENT) { return IndustryGetVariable(object, variable, parameter, available); } switch (variable) { /* Construction state of the tile: a value between 0 and 3 */ case 0x40: return (IsTileType(tile, MP_INDUSTRY)) ? GetIndustryConstructionStage(tile) : 0; /* Terrain type */ case 0x41: return GetTerrainType(tile); /* Current town zone of the tile in the nearest town */ case 0x42: return GetTownRadiusGroup(ClosestTownFromTile(tile, UINT_MAX), tile); /* Relative position */ case 0x43: return GetRelativePosition(tile, inds->location.tile); /* Animation frame. Like house variable 46 but can contain anything 0..FF. */ case 0x44: return (IsTileType(tile, MP_INDUSTRY)) ? GetIndustryAnimationState(tile) : 0; /* Land info of nearby tiles */ case 0x60: return GetNearbyIndustryTileInformation(parameter, tile, inds == NULL ? (IndustryID)INVALID_INDUSTRY : inds->index); /* Animation stage of nearby tiles */ case 0x61: tile = GetNearbyTile(parameter, tile); if (IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile) == inds) { return GetIndustryAnimationState(tile); } return UINT_MAX; /* Get industry tile ID at offset */ case 0x62: return GetIndustryIDAtOffset(GetNearbyTile(parameter, tile), inds); } DEBUG(grf, 1, "Unhandled industry tile property 0x%X", variable); *available = false; return UINT_MAX; } static const SpriteGroup *IndustryTileResolveReal(const ResolverObject *object, const RealSpriteGroup *group) { /* IndustryTile do not have 'real' groups. Or do they?? */ return NULL; } static uint32 IndustryTileGetRandomBits(const ResolverObject *object) { const TileIndex tile = object->u.industry.tile; if (tile == INVALID_TILE || !IsTileType(tile, MP_INDUSTRY)) return 0; return (object->scope == VSG_SCOPE_SELF) ? GetIndustryRandomBits(tile) : Industry::GetByTile(tile)->random; } static uint32 IndustryTileGetTriggers(const ResolverObject *object) { const TileIndex tile = object->u.industry.tile; if (tile == INVALID_TILE || !IsTileType(tile, MP_INDUSTRY)) return 0; return (object->scope == VSG_SCOPE_SELF) ? GetIndustryTriggers(tile) : Industry::GetByTile(tile)->random_triggers; } static void IndustryTileSetTriggers(const ResolverObject *object, int triggers) { const TileIndex tile = object->u.industry.tile; if (tile == INVALID_TILE || !IsTileType(tile, MP_INDUSTRY)) return; if (object->scope == VSG_SCOPE_SELF) { SetIndustryTriggers(tile, triggers); } else { Industry::GetByTile(tile)->random_triggers = triggers; } } static void NewIndustryTileResolver(ResolverObject *res, IndustryGfx gfx, TileIndex tile, Industry *indus) { res->GetRandomBits = IndustryTileGetRandomBits; res->GetTriggers = IndustryTileGetTriggers; res->SetTriggers = IndustryTileSetTriggers; res->GetVariable = IndustryTileGetVariable; res->ResolveReal = IndustryTileResolveReal; res->psa = &indus->psa; res->u.industry.tile = tile; res->u.industry.ind = indus; res->u.industry.gfx = gfx; res->u.industry.type = indus->type; res->callback = CBID_NO_CALLBACK; res->callback_param1 = 0; res->callback_param2 = 0; res->last_value = 0; res->trigger = 0; res->reseed = 0; res->count = 0; const IndustryTileSpec *its = GetIndustryTileSpec(gfx); res->grffile = (its != NULL ? its->grf_prop.grffile : NULL); } static void IndustryDrawTileLayout(const TileInfo *ti, const TileLayoutSpriteGroup *group, byte rnd_colour, byte stage, IndustryGfx gfx) { const DrawTileSprites *dts = group->dts; SpriteID image = dts->ground.sprite; SpriteID pal = dts->ground.pal; if (IS_CUSTOM_SPRITE(image)) image += stage; if (GB(image, 0, SPRITE_WIDTH) != 0) { /* If the ground sprite is the default flat water sprite, draw also canal/river borders * Do not do this if the tile's WaterClass is 'land'. */ if (image == SPR_FLAT_WATER_TILE && IsIndustryTileOnWater(ti->tile)) { DrawWaterClassGround(ti); } else { DrawGroundSprite(image, GroundSpritePaletteTransform(image, pal, GENERAL_SPRITE_COLOUR(rnd_colour))); } } DrawTileSeq(ti, dts, TO_INDUSTRIES, stage, GENERAL_SPRITE_COLOUR(rnd_colour)); } uint16 GetIndustryTileCallback(CallbackID callback, uint32 param1, uint32 param2, IndustryGfx gfx_id, Industry *industry, TileIndex tile) { ResolverObject object; const SpriteGroup *group; NewIndustryTileResolver(&object, gfx_id, tile, industry); object.callback = callback; object.callback_param1 = param1; object.callback_param2 = param2; group = SpriteGroup::Resolve(GetIndustryTileSpec(gfx_id)->grf_prop.spritegroup, &object); if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED; return group->GetCallbackResult(); } bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const IndustryTileSpec *inds) { const SpriteGroup *group; ResolverObject object; if (ti->tileh != SLOPE_FLAT) { bool draw_old_one = true; if (HasBit(inds->callback_mask, CBM_INDT_DRAW_FOUNDATIONS)) { /* Called to determine the type (if any) of foundation to draw for industry tile */ uint32 callback_res = GetIndustryTileCallback(CBID_INDUSTRY_DRAW_FOUNDATIONS, 0, 0, gfx, i, ti->tile); draw_old_one = (callback_res != 0); } if (draw_old_one) DrawFoundation(ti, FOUNDATION_LEVELED); } NewIndustryTileResolver(&object, gfx, ti->tile, i); group = SpriteGroup::Resolve(inds->grf_prop.spritegroup, &object); if (group == NULL || group->type != SGT_TILELAYOUT) { return false; } else { /* Limit the building stage to the number of stages supplied. */ const TileLayoutSpriteGroup *tlgroup = (const TileLayoutSpriteGroup *)group; byte stage = GetIndustryConstructionStage(ti->tile); stage = Clamp(stage - 4 + tlgroup->num_building_stages, 0, tlgroup->num_building_stages - 1); IndustryDrawTileLayout(ti, tlgroup, i->random_colour, stage, gfx); return true; } } extern bool IsSlopeRefused(Slope current, Slope refused); bool PerformIndustryTileSlopeCheck(TileIndex ind_base_tile, TileIndex ind_tile, const IndustryTileSpec *its, IndustryType type, IndustryGfx gfx, uint itspec_index) { Industry ind; ind.index = INVALID_INDUSTRY; ind.location.tile = ind_base_tile; ind.location.w = 0; ind.type = type; uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_SHAPE_CHECK, 0, itspec_index, gfx, &ind, ind_tile); if (callback_res == CALLBACK_FAILED) { return !IsSlopeRefused(GetTileSlope(ind_tile, NULL), its->slopes_refused); } if (its->grf_prop.grffile->grf_version < 7) { return callback_res != 0; } if (callback_res == 0x400) return true; /* Copy some parameters from the registers to the error message text ref. stack */ SwitchToErrorRefStack(); PrepareTextRefStackUsage(4); SwitchToNormalRefStack(); switch (callback_res) { case 0x401: _error_message = STR_ERROR_SITE_UNSUITABLE; return false; case 0x402: _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_RAINFOREST; return false; case 0x403: _error_message = STR_ERROR_CAN_ONLY_BE_BUILT_IN_DESERT; return false; default: _error_message = GetGRFStringID(its->grf_prop.grffile->grfid, 0xD000 + callback_res); return false; } } void AnimateNewIndustryTile(TileIndex tile) { Industry *ind = Industry::GetByTile(tile); IndustryGfx gfx = GetIndustryGfx(tile); const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx); byte animation_speed = itspec->animation_speed; if (HasBit(itspec->callback_mask, CBM_INDT_ANIM_SPEED)) { uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIMATION_SPEED, 0, 0, gfx, ind, tile); if (callback_res != CALLBACK_FAILED) animation_speed = Clamp(callback_res & 0xFF, 0, 16); } /* An animation speed of 2 means the animation frame changes 4 ticks, and * increasing this value by one doubles the wait. 0 is the minimum value * allowed for animation_speed, which corresponds to 30ms, and 16 is the * maximum, corresponding to around 33 minutes. */ if ((_tick_counter % (1 << animation_speed)) != 0) return; bool frame_set_by_callback = false; byte frame = GetIndustryAnimationState(tile); uint16 num_frames = GB(itspec->animation_info, 0, 8); if (HasBit(itspec->callback_mask, CBM_INDT_ANIM_NEXT_FRAME)) { uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIM_NEXT_FRAME, HasBit(itspec->animation_special_flags, 0) ? Random() : 0, 0, gfx, ind, tile); if (callback_res != CALLBACK_FAILED) { frame_set_by_callback = true; switch (callback_res & 0xFF) { case 0xFF: DeleteAnimatedTile(tile); break; case 0xFE: /* Carry on as normal. */ frame_set_by_callback = false; break; default: frame = callback_res & 0xFF; break; } /* If the lower 7 bits of the upper byte of the callback * result are not empty, it is a sound effect. */ if (GB(callback_res, 8, 7) != 0) PlayTileSound(itspec->grf_prop.grffile, GB(callback_res, 8, 7), tile); } } if (!frame_set_by_callback) { if (frame < num_frames) { frame++; } else if (frame == num_frames && GB(itspec->animation_info, 8, 8) == 1) { /* This animation loops, so start again from the beginning */ frame = 0; } else { /* This animation doesn't loop, so stay here */ DeleteAnimatedTile(tile); } } SetIndustryAnimationState(tile, frame); MarkTileDirtyByTile(tile); } static void ChangeIndustryTileAnimationFrame(const IndustryTileSpec *itspec, TileIndex tile, IndustryAnimationTrigger iat, uint32 random_bits, IndustryGfx gfx, Industry *ind) { uint16 callback_res = GetIndustryTileCallback(CBID_INDTILE_ANIM_START_STOP, random_bits, iat, gfx, ind, tile); if (callback_res == CALLBACK_FAILED) return; switch (callback_res & 0xFF) { case 0xFD: /* Do nothing. */ break; case 0xFE: AddAnimatedTile(tile); break; case 0xFF: DeleteAnimatedTile(tile); break; default: SetIndustryAnimationState(tile, callback_res & 0xFF); AddAnimatedTile(tile); break; } /* If the lower 7 bits of the upper byte of the callback * result are not empty, it is a sound effect. */ if (GB(callback_res, 8, 7) != 0) PlayTileSound(itspec->grf_prop.grffile, GB(callback_res, 8, 7), tile); } bool StartStopIndustryTileAnimation(TileIndex tile, IndustryAnimationTrigger iat, uint32 random) { IndustryGfx gfx = GetIndustryGfx(tile); const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx); if (!HasBit(itspec->animation_triggers, iat)) return false; Industry *ind = Industry::GetByTile(tile); ChangeIndustryTileAnimationFrame(itspec, tile, iat, random, gfx, ind); return true; } bool StartStopIndustryTileAnimation(const Industry *ind, IndustryAnimationTrigger iat) { bool ret = true; uint32 random = Random(); TILE_AREA_LOOP(tile, ind->location) { if (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == ind->index) { if (StartStopIndustryTileAnimation(tile, iat, random)) { SB(random, 0, 16, Random()); } else { ret = false; } } } return ret; } static void DoTriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger, Industry *ind) { ResolverObject object; IndustryGfx gfx = GetIndustryGfx(tile); const IndustryTileSpec *itspec = GetIndustryTileSpec(gfx); if (itspec->grf_prop.spritegroup == NULL) return; NewIndustryTileResolver(&object, gfx, tile, ind); object.callback = CBID_RANDOM_TRIGGER; object.trigger = trigger; const SpriteGroup *group = SpriteGroup::Resolve(itspec->grf_prop.spritegroup, &object); if (group == NULL) return; byte new_random_bits = Random(); byte random_bits = GetIndustryRandomBits(tile); random_bits &= ~object.reseed; random_bits |= new_random_bits & object.reseed; SetIndustryRandomBits(tile, random_bits); MarkTileDirtyByTile(tile); } void TriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger) { DoTriggerIndustryTile(tile, trigger, Industry::GetByTile(tile)); } void TriggerIndustry(Industry *ind, IndustryTileTrigger trigger) { TILE_AREA_LOOP(tile, ind->location) { if (IsTileType(tile, MP_INDUSTRY) && GetIndustryIndex(tile) == ind->index) { DoTriggerIndustryTile(tile, trigger, ind); } } }