| … | |
… | |
| 131 | sint8 ACC (RW, light); /* How much light this space provides */ |
131 | sint8 ACC (RW, light); /* How much light this space provides */ |
| 132 | MoveType ACC (RW, move_block); /* What movement types this space blocks */ |
132 | MoveType ACC (RW, move_block); /* What movement types this space blocks */ |
| 133 | MoveType ACC (RW, move_slow); /* What movement types this space slows */ |
133 | MoveType ACC (RW, move_slow); /* What movement types this space slows */ |
| 134 | MoveType ACC (RW, move_on); /* What movement types are activated */ |
134 | MoveType ACC (RW, move_on); /* What movement types are activated */ |
| 135 | MoveType ACC (RW, move_off); /* What movement types are activated */ |
135 | MoveType ACC (RW, move_off); /* What movement types are activated */ |
| 136 | uint16_t ACC (RW, nrof_); // saturates at 64k |
136 | uint16_t ACC (RW, items_); // saturates at 64k |
| 137 | uint32_t ACC (RW, volume_); // ~dm³ (not cm³) (factor is actually 1024) |
137 | uint32_t ACC (RW, volume_); // ~dm³ (not cm³) (factor is actually 1024) |
| 138 | uint32_t ACC (RW, smell); // the last count a player was seen here, or 0 |
138 | uint32_t ACC (RW, smell); // the last count a player was seen here, or 0 |
| 139 | static uint32_t ACC (RW, smellcount); // global smell counter |
139 | static uint32_t ACC (RW, smellcount); // global smell counter |
| 140 | |
140 | |
| 141 | uint32_t pad1_, pad2_; // pad to 64 bytes on 64 bit systems |
141 | uint32_t pad1_, pad2_; // pad to 64 bytes on 64 bit systems |
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| 145 | void update_ (); |
145 | void update_ (); |
| 146 | MTH void update () |
146 | MTH void update () |
| 147 | { |
147 | { |
| 148 | // we take advantage of the fact that 0x80 is the sign bit |
148 | // we take advantage of the fact that 0x80 is the sign bit |
| 149 | // to generate more efficient code on many cpus |
149 | // to generate more efficient code on many cpus |
| 150 | assert (P_UPTODATE == 0x80); |
150 | assert (sint8 (P_UPTODATE) < 0); |
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151 | assert (sint8 (-1 & ~P_UPTODATE) >= 0); |
| 151 | |
152 | |
| 152 | if (expect_false (sint8 (flags_) < 0)) |
153 | if (expect_false (sint8 (flags_) >= 0)) |
| 153 | update_ (); |
154 | update_ (); |
| 154 | |
155 | |
| 155 | // must be true by now |
156 | // must be true by now (gcc seems content with only the second test) |
| 156 | assume (sint8 (flags_) < 0); |
157 | assume (sint8 (flags_) < 0); |
| 157 | assume (flags_ & P_UPTODATE); |
158 | assume (flags_ & P_UPTODATE); |
| 158 | } |
159 | } |
| 159 | |
160 | |
| 160 | MTH uint8 flags () |
161 | MTH uint8 flags () |
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| 179 | op = 0; |
180 | op = 0; |
| 180 | |
181 | |
| 181 | return op; |
182 | return op; |
| 182 | } |
183 | } |
| 183 | |
184 | |
| 184 | MTH uint32 nrof () |
185 | MTH uint32 items() |
| 185 | { |
186 | { |
| 186 | update (); |
187 | update (); |
| 187 | return nrof_; |
188 | return items_; |
| 188 | } |
189 | } |
| 189 | |
190 | |
| 190 | // return the item volume on this mapspace in cm³ |
191 | // return the item volume on this mapspace in cm³ |
| 191 | MTH uint64 volume () |
192 | MTH uint64 volume () |
| 192 | { |
193 | { |
