Rampage: Game status buffer

Address

Length

Description

768

Building Buffer?

TODO: Seems to be larger than this single block. Maybe also 6200 as well, will test.

768

6912

1294

Table: Sprite Information

30

User Defined Keys

Note although there are 3 "sets" - it doesn't always follow that the monster IDs correlate with the set IDs.

For instance; if George and Lizzy are computer controlled and Ralph uses the keyboard - he will use set 1. The sets are assigned sequentially to being assigned to a player.

47

47

47

1

Human Generator Limiter

Defaults to 80 (see DEC9) is used for limiting the generation of humans. Humans are only generated when a generated random number between 00-FF is below the number set here.

1

Maximum Number Humans

Used by the routines at Handler_SpawnHumans and FindScene.

1

Maximum Number Helicopters

1

Level Finished Countdown

After all the buildings have collapsed, the game doesn't instantly end the level. This countdown is reduced and the level ends only when it reaches zero.

1

Active Monster Control Byte

TODO; bit pattern is maybe different to the control pattern.

2

Game status buffer entry at D218

4

Counts up while the game plays, used as a random number generator (as it's never reset).

2

Game status buffer entry at D21E

2

Game status buffer entry at D220

2

Game status buffer entry at D222

2

Game status buffer entry at D224

1

Game status buffer entry at D226

6

6

6

3

Game status buffer entry at D23E

3

Game status buffer entry at D241

1

Jump Table Pointer

See Action_JumpTable.

1

Game status buffer entry at D245

1

Active Monster Climbing Flag

Relates to:

Byte	Meaning
00	No
01	Yes

1

Active Monster Orientation Flag

Relates to:

Byte	Facing
00	Left-to-right
01	Right-to-left

1

Active Monster Jumping Flag

Relates to:

Byte	Meaning
00	No
01	Yes

1

Active Monster Idle Countdown

Used by the routines at Handler_Controls, Animate_TransformExplosion, Animate_TurnIntoHuman and Animate_ExitStageRight.

1

Active Monster About-To-Fall Countdown

Used by the routine at Action_Falling.

1

Active Monster Action Countdown

Relates to:

1

Game status buffer entry at D24C

2

Active Monster Co-ordinates

Relates to:

1

Game status buffer entry at D24F

1

Active Monster Energy

Seem to be unused. Relates to:

1

Active Monster Sprite Modifier

When monster frames are drawn, this is used with an OR to set a bit which changes the sprite to the appropriate character. See DrawMonsterSprite.

Byte	Bit	Monster
00	00000000	George
40	01000000	Lizzy
80	10000000	Ralph

1

Active Monster Control Type

ID: 0E. See ChangeControls, relates to:

2

Game status buffer entry at D253

64

See Handler_Humans.

18

Table: Helicopters

See Handler_Helicopters.

24

Table: Helicopter Something

78

18

Table: Projectiles

84

Table: Buildings

1

Number Of Buildings Remaining

Number of buildings remaining standing on the current level.

1

Human Count (TODO)

1

Active Helicopter Count

1

On-Screen Helicopter Count

1

1

Projectile Count

1

Byte	Meaning
00	In-Play
01	Game Over

1

Is it carpet? Awning? Unsure...

Byte	Meaning
00	No carpet
01	Carpet

1

Game status buffer entry at D3FF

1

4

3

1

Game: Current Level

1

Temporary Monster ID

10

User Defined Keys Buffer

Used by the routines at ChangeControls and UserDefinedKeys.

2

User Defined Keys Pointer

1

Keyboard Control Count

33

See Print_Ticker.