author | Tero Marttila <terom@fixme.fi> |
Fri, 18 Jul 2008 21:28:42 +0300 | |
changeset 11175 | 020c61e39c94 |
parent 10990 | 787c5664f30b |
permissions | -rw-r--r-- |
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/* $Id$ */ |
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/** @file newgrf_spritegroup.cpp Handling of primarily NewGRF action 2. */ |
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|
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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 "landscape.h" |
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#include "oldpool.h" |
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#include "newgrf.h" |
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#include "newgrf_callbacks.h" |
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#include "newgrf_spritegroup.h" |
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#include "sprite.h" |
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#include "date_func.h" |
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#include "settings_type.h" |
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|
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static void SpriteGroupPoolCleanBlock(uint start_item, uint end_item); |
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|
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static uint _spritegroup_count = 0; |
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STATIC_OLD_POOL(SpriteGroup, SpriteGroup, 9, 250, NULL, SpriteGroupPoolCleanBlock) |
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static void DestroySpriteGroup(SpriteGroup *group) |
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{ |
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/* Free dynamically allocated memory */ |
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/* XXX Cast away the consts due to MSVC being buggy... */ |
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switch (group->type) { |
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case SGT_REAL: |
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free((SpriteGroup**)group->g.real.loaded); |
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free((SpriteGroup**)group->g.real.loading); |
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30 |
break; |
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|
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case SGT_DETERMINISTIC: |
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free(group->g.determ.adjusts); |
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free(group->g.determ.ranges); |
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break; |
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|
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case SGT_RANDOMIZED: |
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free((SpriteGroup**)group->g.random.groups); |
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break; |
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|
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case SGT_TILELAYOUT: |
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free((void*)group->g.layout.dts->seq); |
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free(group->g.layout.dts); |
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break; |
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|
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default: |
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break; |
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} |
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} |
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static void SpriteGroupPoolCleanBlock(uint start_item, uint end_item) |
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{ |
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uint i; |
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|
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for (i = start_item; i <= end_item; i++) { |
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DestroySpriteGroup(GetSpriteGroup(i)); |
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} |
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} |
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|
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|
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/* Allocate a new SpriteGroup */ |
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SpriteGroup *AllocateSpriteGroup() |
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{ |
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/* This is totally different to the other pool allocators, as we never remove an item from the pool. */ |
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if (_spritegroup_count == GetSpriteGroupPoolSize()) { |
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if (!_SpriteGroup_pool.AddBlockToPool()) return NULL; |
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} |
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|
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return GetSpriteGroup(_spritegroup_count++); |
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} |
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|
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|
6573 | 73 |
void InitializeSpriteGroupPool() |
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{ |
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_SpriteGroup_pool.CleanPool(); |
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|
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_spritegroup_count = 0; |
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} |
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79 |
|
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TemporaryStorageArray<uint32, 0x110> _temp_store; |
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81 |
|
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82 |
|
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83 |
static inline uint32 GetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) |
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84 |
{ |
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85 |
/* First handle variables common with Action7/9/D */ |
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86 |
uint32 value; |
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87 |
if (GetGlobalVariable(variable, &value)) return value; |
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88 |
|
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89 |
/* Non-common variable */ |
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90 |
switch (variable) { |
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case 0x0C: return object->callback; |
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case 0x10: return object->callback_param1; |
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93 |
case 0x18: return object->callback_param2; |
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94 |
case 0x1C: return object->last_value; |
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95 |
|
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96 |
case 0x5F: return (object->GetRandomBits(object) << 8) | object->GetTriggers(object); |
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97 |
|
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98 |
case 0x7D: return _temp_store.Get(parameter); |
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99 |
|
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100 |
/* Not a common variable, so evalute the feature specific variables */ |
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default: return object->GetVariable(object, variable, parameter, available); |
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102 |
} |
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103 |
} |
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104 |
|
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105 |
|
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106 |
/** |
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107 |
* Rotate val rot times to the right |
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108 |
* @param val the value to rotate |
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109 |
* @param rot the amount of times to rotate |
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110 |
* @return the rotated value |
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111 |
*/ |
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|
112 |
static uint32 RotateRight(uint32 val, uint32 rot) |
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113 |
{ |
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|
114 |
/* Do not rotate more than necessary */ |
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|
115 |
rot %= 32; |
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|
116 |
|
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|
117 |
return (val >> rot) | (val << (32 - rot)); |
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|
118 |
} |
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|
119 |
|
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|
120 |
|
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|
121 |
/* Evaluate an adjustment for a variable of the given size. |
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|
122 |
* U is the unsigned type and S is the signed type to use. */ |
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|
123 |
template <typename U, typename S> |
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|
124 |
static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, ResolverObject *object, U last_value, uint32 value) |
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125 |
{ |
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|
126 |
value >>= adjust->shift_num; |
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|
127 |
value &= adjust->and_mask; |
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|
128 |
|
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|
129 |
if (adjust->type != DSGA_TYPE_NONE) value += (S)adjust->add_val; |
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|
130 |
|
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|
131 |
switch (adjust->type) { |
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|
132 |
case DSGA_TYPE_DIV: value /= (S)adjust->divmod_val; break; |
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|
133 |
case DSGA_TYPE_MOD: value %= (U)adjust->divmod_val; break; |
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|
134 |
case DSGA_TYPE_NONE: break; |
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|
135 |
} |
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|
136 |
|
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|
137 |
switch (adjust->operation) { |
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|
138 |
case DSGA_OP_ADD: return last_value + value; |
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|
139 |
case DSGA_OP_SUB: return last_value - value; |
5852
cb3f71b16e1a
(svn r8055) -Codechange: Replace the different max, dmax, maxu whatever macros by a simple template function max(), that requires two arguments of the same type. While I'm at it change a variable called "max" to "maxval" in a function that calls max().
celestar
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|
140 |
case DSGA_OP_SMIN: return min((S)last_value, (S)value); |
cb3f71b16e1a
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|
141 |
case DSGA_OP_SMAX: return max((S)last_value, (S)value); |
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|
142 |
case DSGA_OP_UMIN: return min((U)last_value, (U)value); |
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|
143 |
case DSGA_OP_UMAX: return max((U)last_value, (U)value); |
7113
4b0fd37ee609
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|
144 |
case DSGA_OP_SDIV: return value == 0 ? (S)last_value : (S)last_value / (S)value; |
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|
145 |
case DSGA_OP_SMOD: return value == 0 ? (S)last_value : (S)last_value % (S)value; |
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|
146 |
case DSGA_OP_UDIV: return value == 0 ? (U)last_value : (U)last_value / (U)value; |
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|
147 |
case DSGA_OP_UMOD: return value == 0 ? (U)last_value : (U)last_value % (U)value; |
5851
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|
148 |
case DSGA_OP_MUL: return last_value * value; |
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|
149 |
case DSGA_OP_AND: return last_value & value; |
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|
150 |
case DSGA_OP_OR: return last_value | value; |
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|
151 |
case DSGA_OP_XOR: return last_value ^ value; |
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|
152 |
case DSGA_OP_STO: _temp_store.Store(value, last_value); return last_value; |
7017
59a26efc3832
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|
153 |
case DSGA_OP_RST: return value; |
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|
154 |
case DSGA_OP_STOP: if (object->psa != NULL) object->psa->Store(value, last_value); return last_value; |
8108
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|
155 |
case DSGA_OP_ROR: return RotateRight(last_value, value); |
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|
156 |
case DSGA_OP_SCMP: return ((S)last_value == (S)value) ? 1 : ((S)last_value < (S)value ? 0 : 2); |
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|
157 |
case DSGA_OP_UCMP: return ((U)last_value == (U)value) ? 1 : ((U)last_value < (U)value ? 0 : 2); |
5851
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|
158 |
default: return value; |
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|
159 |
} |
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|
160 |
} |
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|
161 |
|
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|
162 |
|
3686
55efe6da4dfb
(svn r4611) - NewGRF: introduce new vehicle sprite group resolver code. This also fixes some known bugs (e.g. the 'Standard Five' in UKRS is now the correct colour)
peter1138
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|
163 |
static inline const SpriteGroup *ResolveVariable(const SpriteGroup *group, ResolverObject *object) |
3677
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|
164 |
{ |
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|
165 |
static SpriteGroup nvarzero; |
5858
dfe44c585495
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peter1138
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|
166 |
uint32 last_value = 0; |
5857
5ef1679ad1e4
(svn r8062) -Codechange: change newgrf varaction2 value from signed to unsigned
peter1138
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|
167 |
uint32 value = 0; |
3677
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|
168 |
uint i; |
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|
169 |
|
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|
170 |
object->scope = group->g.determ.var_scope; |
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|
171 |
|
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|
172 |
for (i = 0; i < group->g.determ.num_adjusts; i++) { |
cb6659a684b5
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|
173 |
DeterministicSpriteGroupAdjust *adjust = &group->g.determ.adjusts[i]; |
3893
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|
174 |
|
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|
175 |
/* Try to get the variable. We shall assume it is available, unless told otherwise. */ |
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|
176 |
bool available = true; |
5868
baa704b6dc4f
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maedhros
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|
177 |
if (adjust->variable == 0x7E) { |
5873
ef74899fd5d7
(svn r8081) -Fix (r8075): Use a copy of the resolver object instead of the using the existing one. This fixes problems with the object scope setting.
peter1138
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|
178 |
ResolverObject subobject = *object; |
9181
b65dd02939dd
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frosch
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diff
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|
179 |
subobject.procedure_call = true; |
8105
8f7fcf4d2b7e
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|
180 |
const SpriteGroup *subgroup = Resolve(adjust->subroutine, &subobject); |
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|
181 |
if (subgroup == NULL || subgroup->type != SGT_CALLBACK) { |
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|
182 |
value = CALLBACK_FAILED; |
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|
183 |
} else { |
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|
184 |
value = subgroup->g.callback.result; |
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|
185 |
} |
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|
186 |
} else { |
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|
187 |
value = GetVariable(object, adjust->variable, adjust->parameter, &available); |
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|
188 |
} |
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|
189 |
|
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|
190 |
if (!available) { |
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|
191 |
/* Unsupported property: skip further processing and return either |
46169364701b
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|
192 |
* the group from the first range or the default group. */ |
8105
8f7fcf4d2b7e
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rubidium
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|
193 |
return Resolve(group->g.determ.num_ranges > 0 ? group->g.determ.ranges[0].group : group->g.determ.default_group, object); |
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|
194 |
} |
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|
195 |
|
3677
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|
196 |
switch (group->g.determ.size) { |
8106
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rubidium
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|
197 |
case DSG_SIZE_BYTE: value = EvalAdjustT<uint8, int8> (adjust, object, last_value, value); break; |
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|
198 |
case DSG_SIZE_WORD: value = EvalAdjustT<uint16, int16>(adjust, object, last_value, value); break; |
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|
199 |
case DSG_SIZE_DWORD: value = EvalAdjustT<uint32, int32>(adjust, object, last_value, value); break; |
3677
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|
200 |
default: NOT_REACHED(); break; |
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|
201 |
} |
cb6659a684b5
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|
202 |
last_value = value; |
cb6659a684b5
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|
203 |
} |
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|
204 |
|
5858
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peter1138
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|
205 |
object->last_value = last_value; |
dfe44c585495
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|
206 |
|
3893
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|
207 |
if (group->g.determ.num_ranges == 0) { |
46169364701b
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changeset
|
208 |
/* nvar == 0 is a special case -- we turn our value into a callback result */ |
10405
050832773b03
(svn r12947) -Fix: keep only first 15 bits for non failed callback results
glx
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if (value != CALLBACK_FAILED) value = GB(value, 0, 15); |
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nvarzero.type = SGT_CALLBACK; |
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nvarzero.g.callback.result = value; |
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return &nvarzero; |
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213 |
} |
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214 |
|
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215 |
for (i = 0; i < group->g.determ.num_ranges; i++) { |
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if (group->g.determ.ranges[i].low <= value && value <= group->g.determ.ranges[i].high) { |
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return Resolve(group->g.determ.ranges[i].group, object); |
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218 |
} |
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} |
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220 |
|
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return Resolve(group->g.determ.default_group, object); |
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222 |
} |
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223 |
|
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224 |
|
3686
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(svn r4611) - NewGRF: introduce new vehicle sprite group resolver code. This also fixes some known bugs (e.g. the 'Standard Five' in UKRS is now the correct colour)
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225 |
static inline const SpriteGroup *ResolveRandom(const SpriteGroup *group, ResolverObject *object) |
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226 |
{ |
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uint32 mask; |
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byte index; |
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229 |
|
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230 |
object->scope = group->g.random.var_scope; |
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object->count = group->g.random.count; |
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232 |
|
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233 |
if (object->trigger != 0) { |
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/* Handle triggers */ |
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/* Magic code that may or may not do the right things... */ |
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byte waiting_triggers = object->GetTriggers(object); |
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byte match = group->g.random.triggers & (waiting_triggers | object->trigger); |
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238 |
bool res; |
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239 |
|
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res = (group->g.random.cmp_mode == RSG_CMP_ANY) ? |
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241 |
(match != 0) : (match == group->g.random.triggers); |
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242 |
|
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243 |
if (res) { |
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waiting_triggers &= ~match; |
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object->reseed |= (group->g.random.num_groups - 1) << group->g.random.lowest_randbit; |
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246 |
} else { |
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waiting_triggers |= object->trigger; |
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248 |
} |
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249 |
|
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250 |
object->SetTriggers(object, waiting_triggers); |
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251 |
} |
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252 |
|
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253 |
mask = (group->g.random.num_groups - 1) << group->g.random.lowest_randbit; |
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index = (object->GetRandomBits(object) & mask) >> group->g.random.lowest_randbit; |
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255 |
|
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256 |
return Resolve(group->g.random.groups[index], object); |
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257 |
} |
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258 |
|
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259 |
|
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260 |
/* ResolverObject (re)entry point */ |
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261 |
const SpriteGroup *Resolve(const SpriteGroup *group, ResolverObject *object) |
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262 |
{ |
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263 |
/* We're called even if there is no group, so quietly return nothing */ |
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264 |
if (group == NULL) return NULL; |
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265 |
|
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266 |
switch (group->type) { |
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267 |
case SGT_REAL: return object->ResolveReal(object, group); |
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268 |
case SGT_DETERMINISTIC: return ResolveVariable(group, object); |
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269 |
case SGT_RANDOMIZED: return ResolveRandom(group, object); |
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270 |
default: return group; |
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271 |
} |
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272 |
} |