| author | peter1138 |
| Wed, 26 Apr 2006 20:44:28 +0000 | |
| changeset 3668 | d7ed0a867b49 |
| parent 3595 | 20621831cd46 |
| permissions | -rw-r--r-- |
| 2186 | 1 |
/* $Id$ */ |
2 |
||
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#include "stdafx.h" |
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#include "openttd.h" |
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#include "sprite.h" |
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#include "variables.h" |
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#include "debug.h" |
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|
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SpriteGroup *EvalDeterministicSpriteGroup(const DeterministicSpriteGroup *dsg, int value) |
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{
|
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int i; |
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(svn r4583) - NewGRF: Revamp sprite group loading to support advanced varadjusts and variable size. These are not yet processed, however.
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value >>= dsg->adjusts[0].shift_num; // This should bring us to the byte range. |
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value &= dsg->adjusts[0].and_mask; |
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darkvater
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if (dsg->adjusts[0].operation != DSGA_TYPE_NONE) |
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value += (signed char) dsg->adjusts[0].add_val; |
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switch (dsg->adjusts[0].type) {
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case DSGA_TYPE_DIV: |
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value /= (signed char) dsg->adjusts[0].divmod_val; |
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break; |
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case DSGA_TYPE_MOD: |
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value %= (signed char) dsg->adjusts[0].divmod_val; |
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break; |
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case DSGA_TYPE_NONE: |
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break; |
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} |
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e18cc252e2ea
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darkvater
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for (i = 0; i < dsg->num_ranges; i++) {
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| 1477 | 32 |
DeterministicSpriteGroupRange *range = &dsg->ranges[i]; |
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if (range->low <= (uint32)value && (uint32)value <= range->high) |
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return range->group; |
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} |
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return dsg->default_group; |
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} |
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int GetDeterministicSpriteValue(byte var) |
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{
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switch (var) {
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case 0x00: |
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return _date; |
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case 0x01: |
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return _cur_year; |
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case 0x02: |
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return _cur_month; |
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case 0x03: |
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return _opt.landscape; |
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case 0x09: |
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return _date_fract; |
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case 0x0A: |
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return _tick_counter; |
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case 0x0C: |
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/* If we got here, it means there was no callback or |
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* callbacks aren't supported on our callpath. */ |
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return 0; |
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default: |
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return -1; |
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} |
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} |
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SpriteGroup *EvalRandomizedSpriteGroup(const RandomizedSpriteGroup *rsg, byte random_bits) |
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{
|
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byte mask; |
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byte index; |
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/* Noone likes mangling with bits, but you don't get around it here. |
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* Sorry. --pasky */ |
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// rsg->num_groups is always power of 2 |
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mask = (rsg->num_groups - 1) << rsg->lowest_randbit; |
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index = (random_bits & mask) >> rsg->lowest_randbit; |
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assert(index < rsg->num_groups); |
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return rsg->groups[index]; |
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} |
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78 |
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byte RandomizedSpriteGroupTriggeredBits(const RandomizedSpriteGroup *rsg, |
| 1477 | 80 |
byte triggers, byte *waiting_triggers) |
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{
|
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byte match = rsg->triggers & (*waiting_triggers | triggers); |
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bool res; |
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84 |
|
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if (rsg->cmp_mode == RSG_CMP_ANY) {
|
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res = (match != 0); |
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} else { /* RSG_CMP_ALL */
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res = (match == rsg->triggers); |
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} |
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90 |
|
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0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
91 |
if (!res) {
|
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0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
92 |
*waiting_triggers |= triggers; |
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
93 |
return 0; |
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
94 |
} |
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
95 |
|
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
96 |
*waiting_triggers &= ~match; |
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
97 |
|
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
98 |
return (rsg->num_groups - 1) << rsg->lowest_randbit; |
|
0e3fa3da3899
(svn r654) Hopefully complete support for randomized variational spritegroups (i.e. the cars transporter in DBSetXL gets different cars each time) (pasky)
tron
parents:
414
diff
changeset
|
99 |
} |