Planet M.U.L.E.
Planet Mule 1 => Bugs 1.2.1-3 => Topic started by: Keybounce on February 18, 2010, 10:05
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Title: Rate at which the store turns smithore into mules Post by: Keybounce on February 18, 2010, 10:05 According to Korah:
Quote The MULE manual states that it takes the Store an entire turn to build MULEs, so any Smithore sold during trading cannot be used in this fashion.*** I've seen the store build 8 new mules immediately on being sold smithore, without having to wait a turn first. Title: Re: Rate at which the store turns smithore into mules Post by: Peter on February 19, 2010, 07:34 Actually I haven't seen this in the documents I have. Could anyone verify how mule building works in the Atari and C64 version of the original Mule?
Currently Planet Mule can use all smithore in the store at the end of the round to build mules. However it can only build 8 mules while the original game built as many as possible. This will be changed with the next version though as stated in a previous post. Title: Re: Rate at which the store turns smithore into mules Post by: piete on February 19, 2010, 10:08 You can find the assembly code of Atari Mule here: http://bringerp.free.fr/RE/Mule/downloads.php5
Look at the subroutine starting at address 339A (bolding and italic comment by me): 339A ; ¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦ S U B R O U T I N E ¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦ 339A 339A 339A buildAndCalcPriceMule: ; ... 339A LDA goodsStoreNb+2 339D LSR A ; // construction des mules 339D ; int nbMulesBuildable = goodsStoreNb [Smithore] / 2 that is, upper limit is the amount of smithore (taking into account the store limit 3 rows below) 339E BEQ calcMulePrice ; if (nbMulesBuildable != 0) { 33A0 STA byte_80 33A2 LDA #14 ; // le store contient 14 mules au max 33A4 SEC 33A5 SBC goodsStoreNb+4 ; int nbMulesMissingInStore = 14 - goodsStoreNb [Mule] 33A8 BEQ calcMulePrice ; if (nbMulesMissingInStore != 0) { 33A8 ; 33AA CMP byte_80 ; int nbMulesToBuild = nbMulesMissingInStore 33AC BCC loc_33B0 ; if (nbMulesToBuild >= nbMulesBuildable ) { 33AE LDA byte_80 ; nbMulesToBuild = nbMulesBuildable 33AE ; } 33B0 33B0 loc_33B0: ; ... 33B0 ASL A ; // A contient le nb de mules qui peuvent 33B0 ; // etre construites par rapport au smithore dispo 33B0 ; // 1 MULE prend 2 SMITHORE 33B1 STA byte_88 ; nbSmithoresForBuild = nbMulesToBuild * 2 33B3 LDA goodsStoreNb+2 33B6 SEC 33B7 SBC byte_88 33B9 STA goodsStoreNb+2 ; goodsStoreNb [Smithore] -= nbSmithoresForBuild 33BC LSR byte_88 33BE LDA goodsStoreNb+4 33C1 CLC 33C2 ADC byte_88 33C4 STA goodsStoreNb+4 ; goodsStoreNb [Mule] += nbMulesToBuild 33C4 ; } 33C4 ; } 33C7 33C7 calcMulePrice: ; ... 33C7 LDA goodsPrice+4 ; // calcul du nouveau prix des mules 33CA LDY goodsPrice+5 ; Y/A = GOODS_PRICE [SMITHORE] 33CD LDX #5 33CF JSR div16Bits ; Y/A /= 5 33D2 LDX #10 33D4 JSR mul16BitsBy8Bits ; Y/A *= 10 33D4 ; // Y/A = GOODS_PRICE [SMITHORE] * 2 33D7 STA mulePriceL 33DA STY mulePriceH ; mulePrice = (goodsPrice [Smithore] - goodsPrice [Smithore] % 5) * 2 33DD RTS 33DD ; End of function buildAndCalcPriceMule Title: Re: Rate at which the store turns smithore into mules Post by: trouba on February 19, 2010, 11:57 Wow, I didn't know I still can read 6502 assembler - didn't do that for almost 20 years :D
So, for non-programmers - the Atari version builds MULEs from ore in no time, too. Title: Re: Rate at which the store turns smithore into mules Post by: piete on February 19, 2010, 17:04 As if the game itself wasn't nostalgic enough! I'm not a programmer, but when I (re)start to study programming (during my retirement), I will (re)start from 6502 assembly! :)
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