Difference between revisions of "Super Mario Kart:RAM map"
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{{rammap|game=Super Mario Kart}} | {{rammap|game=Super Mario Kart}} | ||
| + | |||
Locations of variables in RAM, | Locations of variables in RAM, | ||
| − | for the US version of Super Mario Kart for the Super NES | + | for the US version of Super Mario Kart for the Super NES. These were ascertained for Player 1 using Bowser on 150cc mode (shouldn't make a difference, though) |
| − | + | <pre> | |
| − | + | Player kart position coordinates, 2 unsigned bytes each: | |
| − | Player kart position, 2 bytes | + | 7E008C = how far south |
| − | |||
7E0088 = how far east | 7E0088 = how far east | ||
So the 'origin' of the map is in the North West (top left) | So the 'origin' of the map is in the North West (top left) | ||
| − | How many coins, | + | How many coins, unsigned byte: 7E0E00 |
| − | + | Camera facing angle, 2 unsigned bytes: 7E0095 | |
north = 0 | north = 0 | ||
east = 64 | east = 64 | ||
| Line 17: | Line 17: | ||
west = 192 | west = 192 | ||
| − | Player kart speed, 2 bytes | + | Kart facing angle (note: relative to the camera angle), 2 signed bytes: 7E10AA |
| + | Going straight = 0 | ||
| + | Going a little to the right = -1 to about -12000 | ||
| + | Going a little to the left = 1 to about 12000 | ||
| + | Spinning out of control = more than about /- 16500 | ||
| + | (eg hit a bananna skin, shell, etc) | ||
| + | |||
| + | Player kart speed, 2 signed bytes each: | ||
speed to the east = 7E1022 | speed to the east = 7E1022 | ||
speed to the south = 7E1024 | speed to the south = 7E1024 | ||
| − | + | overall speed = 7E10EA | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
Items, 2 unsigned bytes: (7E0D70, 7E0C69) | Items, 2 unsigned bytes: (7E0D70, 7E0C69) | ||
| Line 39: | Line 41: | ||
selecting/spinning = (0-8,?) | selecting/spinning = (0-8,?) | ||
| − | Height in hop/jump/ramp, 2 bytes | + | 7E0D7C (2u) also indicates item, and is set the instant you go over an item square |
| + | |||
| + | Height in hop/jump/ramp, 2 unsigned bytes: 7E101F | ||
on ground = 0 | on ground = 0 | ||
| − | above ground = 1 | + | above ground = 1 |
| − | Status, | + | Status, unsigned byte: 7E10A0 |
on the ground = 0 | on the ground = 0 | ||
jump/hop/ramp = 2 | jump/hop/ramp = 2 | ||
| Line 50: | Line 54: | ||
in deep water = 8 | in deep water = 8 | ||
| − | Surface type, | + | Surface type, unsigned byte: 7E10AE |
unused power up square = 20 | unused power up square = 20 | ||
deep water = 34 | deep water = 34 | ||
mario circuit road / ghost valley road / used power up square / rainbow road = 64 | mario circuit road / ghost valley road / used power up square / rainbow road = 64 | ||
bowser castle = 68 | bowser castle = 68 | ||
| − | doughnut plains | + | doughnut plains track = 70 |
| − | koopa | + | koopa beach sand = 74 |
choco island track = 76 | choco island track = 76 | ||
ghost valley rough bit / bowser castle rough bit / ice = 78 | ghost valley rough bit / bowser castle rough bit / ice = 78 | ||
choco island bridges = 80 | choco island bridges = 80 | ||
choco island slightly rough bit of track = 82 | choco island slightly rough bit of track = 82 | ||
| − | mario circuit | + | mario circuit off road = 84 |
choco island off road = 86 | choco island off road = 86 | ||
snow = 88 | snow = 88 | ||
| − | koopa | + | koopa beach bushes / doughnut plains grass = 90 |
shallow-water = 92 | shallow-water = 92 | ||
mud puddle = 94 | mud puddle = 94 | ||
| − | Gopher attatched to kart: 7E1061 | + | Lap number, two variables, both unsigned bytes: |
| − | + | byte 7E10C1 = lap you're currently on | |
| − | + | byte 7E10F9 = maximum lap you've reached | |
| + | 0 = 127 | ||
| + | 1 = 128 | ||
| + | 2 = 129 | ||
| + | 3 = 130 | ||
| + | 4 = 131 | ||
| + | 5 = 132 | ||
| + | finished = 133 | ||
| + | |||
| + | Collision detection, unsigned byte: 7E1052 | ||
| + | not collision = 0 | ||
| + | collision = 7, then one less each frame down to 0 | ||
| + | |||
| + | Gopher attatched to kart, unsigned byte: 7E1061 | ||
| + | no = 0 | ||
| + | yes = 152 / 153 | ||
| − | Mushroom shrunk, unsigned | + | Mushroom shrunk, unsigned byte: 7E1030 |
no = 0 | no = 0 | ||
yes = 128 | yes = 128 | ||
| + | |||
| + | Boost-counter (undocumented feature - see http://tasvideos.org/SuperMarioKartPhysics.html). | ||
| + | Two unsigned bytes: 7E10CA | ||
| + | |||
| + | Kart skidded out of control, unsigned byte: 7E10A6 | ||
| + | normal = 0/2 | ||
| + | using a star = 0/2/28 | ||
| + | hit a banana-peel = 12 | ||
| + | skidded out right = 14 | ||
| + | skidded out left = 16 | ||
| + | in a mini-boost = 18 | ||
| + | at mini-boost peak = 28 | ||
| + | hit something (eg a wall) = 18/28 | ||
| + | |||
| + | In a mushroom boost or not, unsigned byte: 7E104E | ||
| + | in the boost = 58 | ||
| + | not = 26 | ||
| + | </pre> | ||
| + | {{Internal Data|game=Super Mario Kart}} | ||
| + | |||
| + | ---- | ||
| + | |||
| + | Notes by lytron | ||
| + | |||
| + | $7E/1x14/5 - NPC driver Sprite - #$03C0 Mario, #$??84 Toad, #$0788 DK, #$??8C Bowser | ||
| + | $7E/1x17-B?- NPC driver x-coordinate(?) | ||
| + | $7E/1x1C-F?- NPC driver y-coordinate(?) | ||
Latest revision as of 02:22, 21 February 2019
The following article is a RAM map for Super Mario Kart.
Locations of variables in RAM, for the US version of Super Mario Kart for the Super NES. These were ascertained for Player 1 using Bowser on 150cc mode (shouldn't make a difference, though)
Player kart position coordinates, 2 unsigned bytes each: 7E008C = how far south 7E0088 = how far east So the 'origin' of the map is in the North West (top left) How many coins, unsigned byte: 7E0E00 Camera facing angle, 2 unsigned bytes: 7E0095 north = 0 east = 64 south = 128 west = 192 Kart facing angle (note: relative to the camera angle), 2 signed bytes: 7E10AA Going straight = 0 Going a little to the right = -1 to about -12000 Going a little to the left = 1 to about 12000 Spinning out of control = more than about /- 16500 (eg hit a bananna skin, shell, etc) Player kart speed, 2 signed bytes each: speed to the east = 7E1022 speed to the south = 7E1024 overall speed = 7E10EA Items, 2 unsigned bytes: (7E0D70, 7E0C69) nothing = (0,60) mushroom = (0,52) feather = (1,52) star = (2,56) banana = (3,56) green shell = (4,48) red shell = (5,52) coin = (7,56) lightning = (8,56) selecting/spinning = (0-8,?) 7E0D7C (2u) also indicates item, and is set the instant you go over an item square Height in hop/jump/ramp, 2 unsigned bytes: 7E101F on ground = 0 above ground = 1 Status, unsigned byte: 7E10A0 on the ground = 0 jump/hop/ramp = 2 fallen off edge = 4 in lava = 6 in deep water = 8 Surface type, unsigned byte: 7E10AE unused power up square = 20 deep water = 34 mario circuit road / ghost valley road / used power up square / rainbow road = 64 bowser castle = 68 doughnut plains track = 70 koopa beach sand = 74 choco island track = 76 ghost valley rough bit / bowser castle rough bit / ice = 78 choco island bridges = 80 choco island slightly rough bit of track = 82 mario circuit off road = 84 choco island off road = 86 snow = 88 koopa beach bushes / doughnut plains grass = 90 shallow-water = 92 mud puddle = 94 Lap number, two variables, both unsigned bytes: byte 7E10C1 = lap you're currently on byte 7E10F9 = maximum lap you've reached 0 = 127 1 = 128 2 = 129 3 = 130 4 = 131 5 = 132 finished = 133 Collision detection, unsigned byte: 7E1052 not collision = 0 collision = 7, then one less each frame down to 0 Gopher attatched to kart, unsigned byte: 7E1061 no = 0 yes = 152 / 153 Mushroom shrunk, unsigned byte: 7E1030 no = 0 yes = 128 Boost-counter (undocumented feature - see http://tasvideos.org/SuperMarioKartPhysics.html). Two unsigned bytes: 7E10CA Kart skidded out of control, unsigned byte: 7E10A6 normal = 0/2 using a star = 0/2/28 hit a banana-peel = 12 skidded out right = 14 skidded out left = 16 in a mini-boost = 18 at mini-boost peak = 28 hit something (eg a wall) = 18/28 In a mushroom boost or not, unsigned byte: 7E104E in the boost = 58 not = 26
| Internal Data for Super Mario Kart |
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ROM Map • RAM Map • Text Table • Notes • Tutorials |
Notes by lytron
$7E/1x14/5 - NPC driver Sprite - #$03C0 Mario, #$??84 Toad, #$0788 DK, #$??8C Bowser $7E/1x17-B?- NPC driver x-coordinate(?) $7E/1x1C-F?- NPC driver y-coordinate(?)