author | truelight |
Fri, 13 Jul 2007 09:18:50 +0000 | |
branch | noai |
changeset 9641 | 855e32c08c9b |
parent 9631 | 8a2d1c2ceb88 |
child 7823 | cad4dec2b899 |
permissions | -rw-r--r-- |
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/* $Id$ */ |
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/** @file newgrf_spritegroup.h */ |
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||
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#ifndef NEWGRF_SPRITEGROUP_H |
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#define NEWGRF_SPRITEGROUP_H |
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#include "town.h" |
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#include "industry.h" |
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/** |
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* Gets the value of a so-called newgrf "register". |
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* @param i index of the register |
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* @pre i < 0x110 |
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* @return the value of the register |
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*/ |
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static inline uint32 GetRegister(uint i) |
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{ |
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assert(i < 0x110); |
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extern uint32 _temp_store[0x110]; |
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return _temp_store[i]; |
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} |
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struct SpriteGroup; |
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/* 'Real' sprite groups contain a list of other result or callback sprite |
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* groups. */ |
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struct RealSpriteGroup { |
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/* Loaded = in motion, loading = not moving |
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* Each group contains several spritesets, for various loading stages */ |
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/* XXX: For stations the meaning is different - loaded is for stations |
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* with small amount of cargo whilst loading is for stations with a lot |
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* of da stuff. */ |
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byte num_loaded; ///< Number of loaded groups |
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byte num_loading; ///< Number of loading groups |
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const SpriteGroup **loaded; ///< List of loaded groups (can be SpriteIDs or Callback results) |
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const SpriteGroup **loading; ///< List of loading groups (can be SpriteIDs or Callback results) |
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}; |
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/* Shared by deterministic and random groups. */ |
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enum VarSpriteGroupScope { |
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VSG_SCOPE_SELF, |
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/* Engine of consists for vehicles, city for stations. */ |
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VSG_SCOPE_PARENT, |
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}; |
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enum DeterministicSpriteGroupSize { |
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DSG_SIZE_BYTE, |
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DSG_SIZE_WORD, |
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DSG_SIZE_DWORD, |
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}; |
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enum DeterministicSpriteGroupAdjustType { |
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DSGA_TYPE_NONE, |
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DSGA_TYPE_DIV, |
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DSGA_TYPE_MOD, |
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}; |
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enum DeterministicSpriteGroupAdjustOperation { |
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DSGA_OP_ADD, ///< a + b |
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DSGA_OP_SUB, ///< a - b |
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DSGA_OP_SMIN, ///< (signed) min(a, b) |
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DSGA_OP_SMAX, ///< (signed) max(a, b) |
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DSGA_OP_UMIN, ///< (unsigned) min(a, b) |
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DSGA_OP_UMAX, ///< (unsigned) max(a, b) |
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DSGA_OP_SDIV, ///< (signed) a / b |
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DSGA_OP_SMOD, ///< (signed) a % b |
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DSGA_OP_UDIV, ///< (unsigned) a / b |
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DSGA_OP_UMOD, ///< (unsigned) a & b |
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DSGA_OP_MUL, ///< a * b |
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DSGA_OP_AND, ///< a & b |
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DSGA_OP_OR, ///< a | b |
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DSGA_OP_XOR, ///< a ^ b |
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DSGA_OP_STO, ///< store a into temporary storage, indexed by b. return a |
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DSGA_OP_RST, ///< return b |
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}; |
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struct DeterministicSpriteGroupAdjust { |
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DeterministicSpriteGroupAdjustOperation operation; |
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DeterministicSpriteGroupAdjustType type; |
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byte variable; |
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byte parameter; ///< Used for variables between 0x60 and 0x7F inclusive. |
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byte shift_num; |
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uint32 and_mask; |
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uint32 add_val; |
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uint32 divmod_val; |
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const SpriteGroup *subroutine; |
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}; |
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struct DeterministicSpriteGroupRange { |
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const SpriteGroup *group; |
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uint32 low; |
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uint32 high; |
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}; |
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struct DeterministicSpriteGroup { |
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VarSpriteGroupScope var_scope; |
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DeterministicSpriteGroupSize size; |
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byte num_adjusts; |
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byte num_ranges; |
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DeterministicSpriteGroupAdjust *adjusts; |
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DeterministicSpriteGroupRange *ranges; // Dynamically allocated |
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/* Dynamically allocated, this is the sole owner */ |
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const SpriteGroup *default_group; |
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}; |
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enum RandomizedSpriteGroupCompareMode { |
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RSG_CMP_ANY, |
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RSG_CMP_ALL, |
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}; |
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118 |
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struct RandomizedSpriteGroup { |
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VarSpriteGroupScope var_scope; ///< Take this object: |
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|
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RandomizedSpriteGroupCompareMode cmp_mode; ///< Check for these triggers: |
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byte triggers; |
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|
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byte lowest_randbit; ///< Look for this in the per-object randomized bitmask: |
126 |
byte num_groups; ///< must be power of 2 |
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const SpriteGroup **groups; ///< Take the group with appropriate index: |
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}; |
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130 |
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131 |
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/* This contains a callback result. A failed callback has a value of |
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* CALLBACK_FAILED */ |
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struct CallbackResultSpriteGroup { |
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uint16 result; |
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}; |
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137 |
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138 |
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/* A result sprite group returns the first SpriteID and the number of |
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* sprites in the set */ |
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struct ResultSpriteGroup { |
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SpriteID sprite; |
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byte num_sprites; |
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}; |
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|
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struct TileLayoutSpriteGroup { |
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byte num_sprites; ///< Number of sprites in the spriteset, used for loading stages |
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struct DrawTileSprites *dts; |
149 |
}; |
|
150 |
||
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struct IndustryProductionSpriteGroup { |
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uint8 version; |
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uint16 substract_input[3]; |
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uint16 add_output[2]; |
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uint8 again; |
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}; |
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157 |
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158 |
/* List of different sprite group types */ |
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enum SpriteGroupType { |
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SGT_INVALID, |
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SGT_REAL, |
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SGT_DETERMINISTIC, |
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SGT_RANDOMIZED, |
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SGT_CALLBACK, |
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SGT_RESULT, |
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SGT_TILELAYOUT, |
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SGT_INDUSTRY_PRODUCTION, |
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168 |
}; |
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169 |
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/* Common wrapper for all the different sprite group types */ |
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struct SpriteGroup { |
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SpriteGroupType type; |
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173 |
|
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union { |
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RealSpriteGroup real; |
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DeterministicSpriteGroup determ; |
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RandomizedSpriteGroup random; |
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CallbackResultSpriteGroup callback; |
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ResultSpriteGroup result; |
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TileLayoutSpriteGroup layout; |
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IndustryProductionSpriteGroup indprod; |
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} g; |
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183 |
}; |
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184 |
|
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185 |
|
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SpriteGroup *AllocateSpriteGroup(); |
187 |
void InitializeSpriteGroupPool(); |
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188 |
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189 |
|
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struct ResolverObject { |
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uint16 callback; |
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uint32 callback_param1; |
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uint32 callback_param2; |
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194 |
|
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byte trigger; |
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uint32 last_value; |
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uint32 reseed; |
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VarSpriteGroupScope scope; |
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199 |
|
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bool info_view; ///< Indicates if the item is being drawn in an info window |
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201 |
|
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202 |
union { |
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struct { |
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const struct Vehicle *self; |
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const struct Vehicle *parent; |
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EngineID self_type; |
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} vehicle; |
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struct { |
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209 |
TileIndex tile; |
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} canal; |
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struct { |
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TileIndex tile; |
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const struct Station *st; |
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const struct StationSpec *statspec; |
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CargoID cargo_type; |
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} station; |
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struct { |
218 |
TileIndex tile; |
|
219 |
Town *town; |
|
220 |
HouseID house_id; |
|
221 |
} house; |
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struct { |
9626 | 223 |
TileIndex tile; |
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Industry *ind; |
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IndustryGfx gfx; |
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} industry; |
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struct { |
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TileIndex tile; |
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const IndustrySpec *spec; |
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uint itspec_index; |
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} industry_location; |
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struct { |
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const struct CargoSpec *cs; |
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} cargo; |
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} u; |
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uint32 (*GetRandomBits)(const struct ResolverObject*); |
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uint32 (*GetTriggers)(const struct ResolverObject*); |
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void (*SetTriggers)(const struct ResolverObject*, int); |
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uint32 (*GetVariable)(const struct ResolverObject*, byte, byte, bool*); |
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const SpriteGroup *(*ResolveReal)(const struct ResolverObject*, const SpriteGroup*); |
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}; |
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/* Base sprite group resolver */ |
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const SpriteGroup *Resolve(const SpriteGroup *group, ResolverObject *object); |
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#endif /* NEWGRF_SPRITEGROUP_H */ |