Designing video game hardware in verilog

Designing Video Game Hardware in Verilog chap 17 ~ 22

17 - Sprites w 4QSJUFͱ͸ w εΫϦʔϯ্Λಈ͘ϏοτϚοϓ w ࠨӈରশ w
͜ͷষͰ΍Δ͜ͱ w 3FDFDBSTQSJUFͷඳը w εΫϦʔϯ্ͷݻఆͷҐஔʹදࣔ w YϐΫηϧ

code NPEVMFDBS@CJUNBQ ZPGT CJUT JOQVU<>ZPGTd PVUQVU<>CJUTࠨӈରশͳͷͰQJYFEͷ൒෼ͰΑ͍ SFH<>CJUBSSBZ<>
BTTJHOCJUTCJUBSSBZ<ZPGT> JOJUJBMCFHJOUFYUʹॻ͍ͯ͋ΔCJUNBQͱ͸एׯҧ͏ CJUBSSBZ<>`CंͷԼͷํɻʹ͓ͯ͘͠ඞཁ͕͋Δ CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>C CJUBSSBZ<>`Cंͷ্ͷํ FOE FOENPEVMF

code ఆٛͨ͠30.ͱ઀ଓ SFH<>DBS@TQSJUF@YPGT SFH<>DBS@TQSJUF@ZPGT XJSF<>DBS@TQSJUF@CJUT DBS@CJUNBQDBS ZPGT DBS@TQSJUF@ZPGT
CJUT DBS@TQSJUF@CJUT TQSJUFͷҐஔΛఆٛʢݻఆʣ SFH<>QMBZFS@Y SFH<>QMBZFS@Z TDBOMJOFຖʹDBS@TQSJUF@ZPGTΛઃఆ  DBS@TQSJUF@ZPGT͸جຊతʹ BMXBZT! QPTFEHFITZOD JG WQPTQMBZFS@Z DBS@TQSJUF@ZPGT FMTFJG DBS@TQSJUF@ZPGT DBS@TQSJUF@ZPGTDBS@TQSJUF@ZPGT  DMPDLຖʢQJYFMຖʣʹDBS@TQSJUF@YPGTΛઃఆ DBS@TQSJUF@YPGT͸جຊతʹ  BMXBZT! QPTFEHFDML JG IQPTQMBZFS@Y DBS@TQSJUF@YPGT FMTFJG DBS@TQSJUF@YPGT DBS@TQSJUF@YPGTDBS@TQSJUF@YPGT

code DBS@HGYΛఆ͍ٛͯ͘͠ ͔͠͠DBS@TQSJUF@CJUT͸CJU෯ͳͨΊҎԼͷఆٛ͸ෆద੾ XJSFDBS@HGYDBS@TQSJUF@CJUT<DBS@TQSJUF@YPGT> DBS@TQSJUF@YPGTΛϛϥʔϦϯά͢Δૉ௚ͳ࣮૷ XJSF<>DBS@CJUDBS@TQSJUF@YPGT DBS@TQSJUF@YPGTDBS@TQSJUF@YPGT ҎԼͷ࣮૷΋౳Ձ
CͰ͋ΓɺӈCJU͕Ͱ͋Ε͹ಈ͘ͷͰͰ΋PL XJSF<>DBS@CJUDBS@TQSJUF@YPGT<> DBS@TQSJUF@YPGT?DBS@TQSJUF@YPGT XJSFDBS@HGYDBS@TQSJUF@CJUT<DBS@CJU<>>

play w QMBZFS@Y QMBZFS@Zͷ஋Λม͑ͯΈΔ w CJUNBQͷ஋Λม͑ͯΈΔʢಛʹྻ໨ͱߦ໨ʣ w DBS@CJUͷ࣮૷Λม͑ͯΈΔʢYPSΛ࢖ͬͨόʔδϣϯɺΛʹม͑ͨόʔδϣϯʣ w WTZODຖʹQMBZFS@Y
QMBZFS@Zͷ஋Λม͑ͯΈΔ

18 - Better Sprites w 'JOJUF4UBUF.BDIJOF w ਓؒʹͱͬͯཧղ͠΍͍͢ w ଟ͘ͷ߹੒πʔϧ͸'4.ʹରͯ͠࠷దԽΛ͔͚Δ
w 7FSJMPHʹ͓͚Δ4UBUF.BDIJOF͸ҎԼͷίϯϙʔωϯτͰߏ੒͞ΕΔ w 4UBUFSFHJTUFSݱࡏͷঢ়ଶ w /FYUTUBUFMPHJDঢ়ଶભҠؔ਺ w 0VUQVUMPHJDग़ྗؔ਺

Example FSM BMXBZT! QBTFEHFDML CFHJO DBTF TUBUF ঢ়ଶ؅ཧϨδελ 45"5&@-"#&-CFHJO
SFHJTUFSTPNF@MPHJDग़ྗؔ਺ PVUTPNF@PVUQVUग़ྗؔ਺ JG DPOEJUJPO TUBUF/&95@45"5&ঢ়ଶભҠؔ਺ JG PUIFS@DPOEJUJPO TUBUF:&5@"/05)&3@45"5&ঢ়ଶભҠؔ਺ FOE NPSFDBTFIBOEMFST FOEDBTF FOE

Sprite renderer state machine 8"*5@'03@745"35 8"*5@'03@-0"% -0"%@4&561 -0"%@'&5$) 8"*5@'03@)45"35 %3"8
WTUBSU MPBE ITUBSU YDPVOU DPVOUZDPVOU

code NPEVMFTQSJUF@SFOEFSFS JOQVUDML JOQVUWTUBSU ্ลͷඳը։࢝Λ஌ΒͤΔγάφϧ JOQVUMPBE TQSJUFͷϏοτϚοϓσʔλΛϩʔυͰ͖Δ͜ͱΛ஌ΒͤΔγάφϧ JOQVUITUBSU
ࠨลͷඳը։࢝Λ஌ΒͤΔγάφϧ PVUQVU<>SPN@BEES 30.ͷΞυϨε JOQVU<>SPN@CJUT 30.͔ΒͷJOQVU PVUQVUHGY PVUQVUJO@QSPHSFTTWTUBSUΛ଴͍ͬͯΔͱ͖͸ ͦΕҎ֎͸ SFH<>TUBUF DVSSFOUTUBUF MPDBMQBSBN8"*5@'03@745"35 MPDBMQBSBN8"*5@'03@-0"% MPDBMQBSBN-0"%@4&561 MPDBMQBSBN-0"%@'&5$) MPDBMQBSBN8"*5@'03@)45"35 MPDBMQBSBN%3"8 BTTJHOJO@QSPHSFTTTUBUF8"*5@'03@745"35 SFH<>ZDPVOU OVNCFSPGTDBOMJOFTESBXOTPGBS SFH<>YDPVOU OVNCFSPGIPSJ[QJYFMTJOUIJTMJOF SFH<>PVUCJUT SFHJTUFSUPTUPSFCJUTGSPN30.

code BMXBZT! QPTFEHFDML CFHJO DBTF TUBUF 8"*5@'03@745"35CFHJO ZDPVOUJOJUJBMJ[FWFSUJDBMDPVOU
HGYEFGBVMUQJYFMWBMVF P⒎ XBJUGPSWTUBSU UIFOOFYUTUBUF JG WTUBSU TUBUF8"*5@'03@-0"% FOE 8"*5@'03@-0"%CFHJO YDPVOU8"*5@'03@)45"35ͰΑ͘ͳ͍ʁ HGY XBJUGPSMPBE UIFOOFYUTUBUF JG MPBE TUBUF-0"%@4&561 FOE -0"%@4&561CFHJO SPN@BEESZDPVOUMPBE30.BEESFTT TUBUF-0"%@'&5$) FOE -0"%@'&5$)CFHJO DMPDLDZDMFͰ30.͔ΒσʔλΛͱΕΔલఏ͚ͩͲ  ͜Εͬͯৗʹͦ͏ͳΜʁ PVUCJUTSPN@CJUTMBUDICJUTGSPN30. TUBUF8"*5@'03@)45"35 FOE 8"*5@'03@)45"35CFHJO XBJUGPSITUBSU UIFOTUBSUESBXJOH JG ITUBSU TUBUF%3"8 FOE %3"8CFHJO HFUQJYFM NJSSPSJOHHSBQIJDTMFGUSJHIU HGYPVUCJUT<YDPVOU YDPVOU<>dYDPVOU<>> YDPVOUYDPVOU pOJTIFEESBXJOHIPSJ[POUBMTMJDF JG YDPVOU QSFJODSFNFOUWBMVF ZDPVOUZDPVOU pOJTIFEESBXJOHTQSJUF JG YDPVOUZDPVOU QSFJODSFNFOUWBMVF TUBUF8"*5@'03@745"35EPOFESBXJOHTQSJUF FMTFJG YDPVOU TUBUF8"*5@'03@-0"%EPOFESBXJOHUIJTTDBOMJOF FOE VOLOPXOTUBUFSFTFU EFGBVMUCFHJO TUBUF8"*5@'03@745"35 FOE FOEDBTF FOE

code DBSCJUNBQ30.BOEBTTPDJBUFEXJSFT XJSF<>DBS@TQSJUF@BEES XJSF<>DBS@TQSJUF@CJUT DBS@CJUNBQDBS ZPGT DBS@TQSJUF@BEES
CJUT DBS@TQSJUF@CJUT DPOWFSUQMBZFS9:UPCJUTBOEDPNQBSFUP$35IQPTWQPT XJSFWTUBSU\C QMBZFS@Z^WQPT XJSFITUBSU\C QMBZFS@Y^IQPT XJSFDBS@HGY DBSTQSJUFWJEFPTJHOBM XJSFJO@QSPHSFTT SFOEFSJOHUBLJOHQMBDFPOTDBOMJOF TQSJUFSFOEFSFSNPEVMF TQSJUF@SFOEFSFSSFOEFSFS DML DML WTUBSU WTUBSU MPBE ITZOD TQSJUFσʔλ͸ը໘֎ʹ͍Δͱ͖ʹऔಘ͞ΕΔ ITUBSU ITUBSU SPN@BEES DBS@TQSJUF@BEES SPN@CJUT DBS@TQSJUF@CJUT HGY DBS@HGY JO@QSPHSFTT JO@QSPHSFTT

19 - Racing Game w ෳ਺TQSJUFͱɺিಥݕ஌ͷσϞϯετϨʔγϣϯ w ͭͷTQSJUFSFOEFSJOHNPEVMFΛ࢖༻͢Δ͕ɺ  ࢖͏30.͸͚ͭͩʹ͍ͨ͠ w
ݴޠϨϕϧͰ͸໰୊ͳ͍͕ɺ߹੒࣌ʹ໰୊ʹͳΔ w ࣮ࡍͷճ࿏Ͱ͸ಉ࣌ΞΫηεʹ੍ݶ͕͋Δ w IQPT͕dͷؒ͸QMBZFSTQSJUFͷ30.ΞΫηεɺ  IQPT͕Ҏ߱͸FOFNZTQSJUFͷ30.ΞΫηεʹ͋ͯΔ

code 30.ʹΞΫηε͢Δର৅ΛܾΊΔ XJSFQMBZFS@MPBE IQPT IQPT XJSFFOFNZ@MPBE IQPT
XJSFVQDBSTQSJUF30. NVMUJQMFYCFUXFFOQMBZFSBOEFOFNZ30.BEESFTT XJSF<>QMBZFS@TQSJUF@ZPGT XJSF<>FOFNZ@TQSJUF@ZPGT XJSF<>DBS@TQSJUF@ZPGTQMBZFS@MPBE QMBZFS@TQSJUF@ZPGTFOFNZ@TQSJUF@ZPGT XJSF<>DBS@TQSJUF@CJUT DBS@CJUNBQDBS ZPGT DBS@TQSJUF@ZPGT CJUT DBS@TQSJUF@CJUT QMBZFSͷTQSJUFΛඳը͢ΔͨΊͷγάφϧΛఆٛ XJSFQMBZFS@WTUBSU\C QMBZFS@Z^WQPT XJSFQMBZFS@ITUBSU\C QMBZFS@Y^IQPT XJSFQMBZFS@HGY XJSFQMBZFS@JT@ESBXJOH QMBZFSTQSJUFHFOFSBUPS TQSJUF@SFOEFSFSQMBZFS@SFOEFSFS DML DML WTUBSU QMBZFS@WTUBSU MPBE QMBZFS@MPBE ITUBSU QMBZFS@ITUBSU SPN@BEES QMBZFS@TQSJUF@ZPGT SPN@CJUT DBS@TQSJUF@CJUT HGY QMBZFS@HGY JO@QSPHSFTT QMBZFS@JT@ESBXJOH TJHOBMTGPSFOFNZTQSJUFHFOFSBUPS XJSFFOFNZ@WTUBSU\C FOFNZ@Z^WQPT XJSFFOFNZ@ITUBSU\C FOFNZ@Y^IQPT XJSFFOFNZ@HGY XJSFFOFNZ@JT@ESBXJOH FOFNZTQSJUFHFOFSBUPS TQSJUF@SFOEFSFSFOFNZ@SFOEFSFS DML DML WTUBSU FOFNZ@WTUBSU MPBE FOFNZ@MPBE ITUBSU FOFNZ@ITUBSU SPN@BEES FOFNZ@TQSJUF@ZPGT SPN@CJUT DBS@TQSJUF@CJUT HGY FOFNZ@HGY JO@QSPHSFTT FOFNZ@JT@ESBXJOH

code TJHOBMTGPSFOFNZCPVODJOHP⒎MFGUSJHIUCPSEFST XJSFFOFNZ@IJU@MFGU FOFNZ@Y ࠨଆQJYFM͸ແఢκʔϯ XJSFFOFNZ@IJU@SJHIU FOFNZ@Y ӈଆQJYFM͸ແఢκʔϯ TQSJUFͷ෯͚ͩແఢκʔϯখ͍͞
XJSFFOFNZ@IJU@FEHFFOFNZ@IJU@MFGUccFOFNZ@IJU@SJHIU QMBZFS FOFNZ USBDLͷϙδγϣϯΛϑϨʔϜຖʹߋ৽͢Δ BMXBZT! QPTFEHFWTZOD CFHJO QMBZFS@YQBEEMF@Y QMBZFS@Z USBDL@QPTUSBDL@QPT \C TQFFE<>^ FOFNZ@ZFOFNZ@Z \C TQFFE<>^ JG FOFNZ@IJU@FEHF FOFNZ@EJSFOFNZ@EJS JG FOFNZ@EJS?FOFNZ@IJU@FEHF FOFNZ@YFOFNZ@Y FMTF FOFNZ@YFOFNZ@Y DPMMJTJPODIFDL JG GSBNF@DPMMJTJPO TQFFE FMTFJG TQFFEdQBEEMF@Z TQFFETQFFE FMTF TQFFETQFFE FOE TFUUPXIFOQMBZFSDPMMJEFTXJUIFOFNZPSUSBDL SFHGSBNF@DPMMJTJPO BMXBZT! QPTFEHFDML JG QMBZFS@HGY FOFNZ@HGYccUSBDL@HGY GSBNF@DPMMJTJPO FMTFJG WTZOD GSBNF@DPMMJTJPO USBDLHSBQIJDTTJHOBMT XJSFUSBDL@P⒎TJEF IQPT<> cc IQPT<> XJSFUSBDL@TIPVMEFS IQPT<> cc IQPT<> XJSFUSBDL@HGY WQPT<>USBDL@QPT<> USBDL@P⒎TJEF

20 - Sprite Rotation w ճస͢ΔTQSJUFΛ࣮ݱ͍ͨ͠ w ֤ճసʹ͓͚ΔCJUNBQΛఆٛ͢Δ͜ͱͰ࣮ݱ͢Δ w ্ԼࠨӈʹϛϥʔϦϯά͢Δ͜ͱͰɺ
/ ݸͷCJUNBQ Ͱ/εςοϓͷճసΛදݱͰ͖Δ

code ݸͷSPUBUJPOTUFQΛݸͷCJUNBQʹϚοϐϯά͢ΔϞδϡʔϧ  NPEVMFSPUBUJPO@TFMFDUPS JOQVU<>SPUBUJPO PVUQVU<>CJUNBQ@OVN PVUQVUINJSSPS WNJSSPS
BMXBZT! ͳΜͰSPUBUJPOͰ͸ͳ͘ ͳͷʁ DBTF SPUBUJPO<> d d d dͰ৔߹෼͚ CFHJO CJUNBQ@OVN\C SPUBUJPO<>^ INJSSPS WNJSSPS FOE CFHJO CJUNBQ@OVNSPUBUJPO<> INJSSPS WNJSSPS FOE CFHJO CJUNBQ@OVN\C SPUBUJPO<>^ INJSSPS WNJSSPS FOE CFHJO CJUNBQ@OVNSPUBUJPO<> INJSSPS WNJSSPS FOE FOEDBTF FOENPEVMF

21 - Motion Vectors w UBOLಈ͔ͧ͢ʔ w িಥͷݕ஌

Fixed-Point w ϑϨʔϜຖʹϐΫηϧಈ͔͢ͱૣ͗͢Δ w ݻఆখ਺఺ͷಋೖ w ˠ SFH<>QMBZFS@Y@pYFE XJSF<>QMBZFS@YQMBZFS@Y@pYFE<>
XJSF<>QMBZFS@Y@GSBDQMBZFS@Y@pYFE<>

The sine function w αΠϯؔ਺ͷ࣮૷ w ׬શͳαΠϯؔ਺ͷ࠶ݱ͸ෆՄೳ w ࠓճͷέʔεͰ͸͔ͳΓૈ͍ਫ਼౓Ͱे෼ w
ೖྗ஋ͱͯ͠ύλʔϯ͚ͩड͚෇͚Δ w ग़ྗ͸dͷCJU w DBTFจʹΑΔ৔߹෼͚Ͱ࣮૷ w ίαΠϯؔ਺͸ɺೖྗʹ౓଍͔ͯ͠Β  αΠϯؔ਺ʹ౉͢͜ͱͰ࣮ݱͰ͖Δ GVODUJPOTJHOFE<>TJO@Y JOQVU<>JO JOQVUBOHMF JOUFHFSZූ߸෇ʹ͍͔ͨ͠ΒJOUFHFSʹͯ͠Δ DBTF JO<> WBMVFTQFSRVBESBOU Z Z ZTJO ZTJO FOEDBTF DBTF JO<> RVBESBOUT TJO@Y` Z dˠd TJO@Y` Z dˠd TJO@Y` Z dˠd TJO@Y` Z dˠd FOEDBTF FOEGVODUJPO

Move During the Hsync w αΠϯؔ਺ɺίαΠϯؔ਺ͷ݁ՌΛɺ଎౓Ͱ৐͍ͨ͡ w WFSJMPHʹֻ͚ࢉͷػೳ͸ͳ͍ʂʢ೥୅͸ʣ w ʮ9ֻ͚ΔʯΛʮ9ճͨ͢ʯͰ࣮૷͢Δ
w TJO@Yճ࿏͚ͭͩͰ࣮ݱͰ͖ΔΑ͏ʹɺ  Y࠲ඪͷܭࢉͱZ࠲ඪͷܭࢉΛผͷλΠϛϯάͰߦ͏ JG WQPT QMBZFS@TQFFE CFHJO͜͜ͰʮQMBZFS@TQFFEճͨ͢ʯΛ࣮ݱ͍ͯ͠Δ JG WQPT<> QMBZFS@Y@pYFEQMBZFS@Y@pYFE ` TJO@Y QMBZFS@SPU FMTF QMBZFS@Z@pYFEQMBZFS@Z@pYFE TJO@Y QMBZFS@SPU FOE

code NPEVMFUBOL@CJUNBQ JOQVU<>BEES PVUQVU<>CJUT PVUQVU͸CJU෯͕ͩCJUBSSBZ͸CJU෯ SFH<>CJUBSSBZ<>
BEESͷ࠷ԼҐCJUͰɺCJUͷલ൒ͱޙ൒ͲͪΒΛฦ͢ͷ͔Λܾఆ͢Δ BTTJHOCJUT BEES<> CJUBSSBZ<BEES><>CJUBSSBZ<BEES><> JOJUJBMCFHJO \X I CQX DPVOU^ CJUBSSBZ<I>C CJUBSSBZ<I>`C ʜ ʜ FOE FOENPEVMF

code NPEVMFTQSJUF@SFOEFSFS JOQVUDML WTUBSU MPBE ITUBSU '4.Ͱ࢖༻͢Δγάφϧ PVUQVU<>SPN@BEES SPN@BEES<>͸TQSJUFͷԿߦ໨͔ɺSPN@BEES<>͸ͦͷߦͷલ൒ޙ൒ͲͪΒ͔ɺΛද͢
JOQVU<>SPN@CJUT 30.͔Βऔಘͨ͠CJU JOQVUINJSSPS WNJSSPS 30.͔Βऔಘͨ͠σʔλΛϛϥʔϦϯάͯ͠දࣔ͢Δ͔ PVUQVUHGY ݱࡏͷZDPVOU YDPVOU ಺෦Ϩδελ Ͱඳը͢Δ΋ͷ PVUQVUCVTZ BTTJHOCVTZTUBUF8"*5@'03@745"35 SFH<>TUBUF SFH<>ZDPVOU SFH<>YDPVOU SFH<>PVUCJUT30.͔ΒGFUDIͨ͠CZUFͷσʔλΛ֨ೲ͢ΔϨδελ MPDBMQBSBN8"*5@'03@745"35 MPDBMQBSBN8"*5@'03@-0"% MPDBMQBSBN-0"%@4&561 MPDBMQBSBN-0"%@'&5$) MPDBMQBSBN-0"%@4&561લճͱҧ͍ɺCZUFऔಘ͢Δඞཁ͕͋Δ MPDBMQBSBN-0"%@'&5$) MPDBMQBSBN8"*5@'03@)45"35 MPDBMQBSBN%3"8 BMXBZT! QPTFEHFDML CFHJO DBTF TUBUF ʜલճͱ΄΅ಉ͡ FOEDBTF FOE FOENPEVMF

code BMXBZT! QPTFEHFWTZODPSQPTFEHFSFTFU CFHJO JG SFTFU CFHJO QMBZFS@SPUJOJUJBM@SPU QMBZFS@TQFFE
FOEFMTFCFHJO GSBNFGSBNF JODSFNFOUGSBNFDPVOUFS JG GSBNF<> CFHJOPOMZVQEBUFFWFSZPUIFSGSBNF JG TXJUDI@MFGU QMBZFS@SPUQMBZFS@SPUUVSOMFGU FMTFJG TXJUDI@SJHIU QMBZFS@SPUQMBZFS@SPU UVSOSJHIU JG TXJUDI@VQ CFHJO JG QMBZFS@TQFFE NBYBDDFM QMBZFS@TQFFEQMBZFS@TQFFE FOEFMTF QMBZFS@TQFFETUPQ FOE FOE FOE SFHDPMMJTJPO@EFUFDUFE BMXBZT! QPTFEHFDML JG WTUBSU DPMMJTJPO@EFUFDUFEUFYU͸ؒ͜͜ҧͬͯΔ FMTFJG DPMMJTJPO@HGY DPMMJTJPO@EFUFDUFE

Designing video game hardware in verilog

Designing video game hardware in verilog

Atsuki Takahashi

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Designing Video Game Hardware in Verilog chap 17 ~ 22

17 - Sprites w 4QSJUFͱ͸ w εΫϦʔϯ্Λಈ͘ϏοτϚοϓ w ࠨӈରশ w

code NPEVMFDBS@CJUNBQ ZPGT CJUT JOQVU<>ZPGTd PVUQVU<>CJUTࠨӈରশͳͷͰQJYFEͷ൒෼ͰΑ͍ SFH<>CJUBSSBZ<>

code ఆٛͨ͠30.ͱ઀ଓ SFH<>DBS@TQSJUF@YPGT SFH<>DBS@TQSJUF@ZPGT XJSF<>DBS@TQSJUF@CJUT DBS@CJUNBQDBS ZPGT DBS@TQSJUF@ZPGT

code DBS@HGYΛఆ͍ٛͯ͘͠ ͔͠͠DBS@TQSJUF@CJUT͸CJU෯ͳͨΊҎԼͷఆٛ͸ෆద੾ XJSFDBS@HGYDBS@TQSJUF@CJUT<DBS@TQSJUF@YPGT> DBS@TQSJUF@YPGTΛϛϥʔϦϯά͢Δૉ௚ͳ࣮૷ XJSF<>DBS@CJUDBS@TQSJUF@YPGT DBS@TQSJUF@YPGTDBS@TQSJUF@YPGT ҎԼͷ࣮૷΋౳Ձ

play w QMBZFS@Y QMBZFS@Zͷ஋Λม͑ͯΈΔ w CJUNBQͷ஋Λม͑ͯΈΔʢಛʹྻ໨ͱߦ໨ʣ w DBS@CJUͷ࣮૷Λม͑ͯΈΔʢYPSΛ࢖ͬͨόʔδϣϯɺΛʹม͑ͨόʔδϣϯʣ w WTZODຖʹQMBZFS@Y

18 - Better Sprites w 'JOJUF4UBUF.BDIJOF w ਓؒʹͱͬͯཧղ͠΍͍͢ w ଟ͘ͷ߹੒πʔϧ͸'4.ʹରͯ͠࠷దԽΛ͔͚Δ

Example FSM BMXBZT! QBTFEHFDML CFHJO DBTF TUBUF ঢ়ଶ؅ཧϨδελ 45"5&@-"#&-CFHJO

Sprite renderer state machine 8"5@'03@745"35 8"5@'03@-0"% -0"%@4&561 -0"%@'&5$) 8"*5@'03@)45"35 %3"8

code NPEVMFTQSJUF@SFOEFSFS JOQVUDML JOQVUWTUBSU ্ลͷඳը։࢝Λ஌ΒͤΔγάφϧ JOQVUMPBE TQSJUFͷϏοτϚοϓσʔλΛϩʔυͰ͖Δ͜ͱΛ஌ΒͤΔγάφϧ JOQVUITUBSU

code BMXBZT! QPTFEHFDML CFHJO DBTF TUBUF 8"*5@'03@745"35CFHJO ZDPVOUJOJUJBMJ[FWFSUJDBMDPVOU

code DBSCJUNBQ30.BOEBTTPDJBUFEXJSFT XJSF<>DBS@TQSJUF@BEES XJSF<>DBS@TQSJUF@CJUT DBS@CJUNBQDBS ZPGT DBS@TQSJUF@BEES

19 - Racing Game w ෳ਺TQSJUFͱɺিಥݕ஌ͷσϞϯετϨʔγϣϯ w ͭͷTQSJUFSFOEFSJOHNPEVMFΛ࢖༻͢Δ͕ɺ  ࢖͏30.͸͚ͭͩʹ͍ͨ͠ w

code 30.ʹΞΫηε͢Δର৅ΛܾΊΔ XJSFQMBZFS@MPBE IQPT IQPT XJSFFOFNZ@MPBE IQPT

code TJHOBMTGPSFOFNZCPVODJOHP⒎MFGUSJHIUCPSEFST XJSFFOFNZ@IJU@MFGU FOFNZ@Y ࠨଆQJYFM͸ແఢκʔϯ XJSFFOFNZ@IJU@SJHIU FOFNZ@Y ӈଆQJYFM͸ແఢκʔϯ TQSJUFͷ෯͚ͩແఢκʔϯখ͍͞

20 - Sprite Rotation w ճస͢ΔTQSJUFΛ࣮ݱ͍ͨ͠ w ֤ճసʹ͓͚ΔCJUNBQΛఆٛ͢Δ͜ͱͰ࣮ݱ͢Δ w ্ԼࠨӈʹϛϥʔϦϯά͢Δ͜ͱͰɺ

code ݸͷSPUBUJPOTUFQΛݸͷCJUNBQʹϚοϐϯά͢ΔϞδϡʔϧ  NPEVMFSPUBUJPO@TFMFDUPS JOQVU<>SPUBUJPO PVUQVU<>CJUNBQ@OVN PVUQVUINJSSPS WNJSSPS

21 - Motion Vectors w UBOLಈ͔ͧ͢ʔ w িಥͷݕ஌

Fixed-Point w ϑϨʔϜຖʹϐΫηϧಈ͔͢ͱૣ͗͢Δ w ݻఆখ਺఺ͷಋೖ w ˠ SFH<>QMBZFS@Y@pYFE XJSF<>QMBZFS@YQMBZFS@Y@pYFE<>

The sine function w αΠϯؔ਺ͷ࣮૷ w ׬શͳαΠϯؔ਺ͷ࠶ݱ͸ෆՄೳ w ࠓճͷέʔεͰ͸͔ͳΓૈ͍ਫ਼౓Ͱे෼ w

Move During the Hsync w αΠϯؔ਺ɺίαΠϯؔ਺ͷ݁ՌΛɺ଎౓Ͱ৐͍ͨ͡ w WFSJMPHʹֻ͚ࢉͷػೳ͸ͳ͍ʂʢ೥୅͸ʣ w ʮ9ֻ͚ΔʯΛʮ9ճͨ͢ʯͰ࣮૷͢Δ

code NPEVMFUBOL@CJUNBQ JOQVU<>BEES PVUQVU<>CJUT PVUQVU͸CJU෯͕ͩCJUBSSBZ͸CJU෯ SFH<>CJUBSSBZ<>

code NPEVMFTQSJUF@SFOEFSFS JOQVUDML WTUBSU MPBE ITUBSU '4.Ͱ࢖༻͢Δγάφϧ PVUQVU<>SPN@BEES SPN@BEES<>͸TQSJUFͷԿߦ໨͔ɺSPN@BEES<>͸ͦͷߦͷલ൒ޙ൒ͲͪΒ͔ɺΛද͢

code BMXBZT! QPTFEHFWTZODPSQPTFEHFSFTFU CFHJO JG SFTFU CFHJO QMBZFS@SPUJOJUJBM@SPU QMBZFS@TQFFE