author | glx |
Tue, 12 Jun 2007 18:02:11 +0000 | |
branch | noai |
changeset 9626 | 79f2b5a0cdd7 |
parent 9620 | 31e38d28a0af |
child 7380 | a9d0047b015c |
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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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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struct RandomizedSpriteGroup { |
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VarSpriteGroupScope var_scope; ///< Take this object: |
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RandomizedSpriteGroupCompareMode cmp_mode; ///< Check for these triggers: |
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byte triggers; |
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byte lowest_randbit; ///< Look for this in the per-object randomized bitmask: |
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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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/* 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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/* 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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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; |
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}; |
|
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||
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/* 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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}; |
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|
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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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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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} g; |
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}; |
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|
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|
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SpriteGroup *AllocateSpriteGroup(); |
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void InitializeSpriteGroupPool(); |
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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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|
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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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bool info_view; ///< Indicates if the item is being drawn in an info window |
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|
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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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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 { |
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TileIndex tile; |
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Town *town; |
|
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HouseID house_id; |
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} house; |
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struct { |
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TileIndex tile; |
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Industry *ind; |
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} industry; |
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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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|
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#endif /* NEWGRF_SPRITEGROUP_H */ |