Callback: Vehicle Start/stop check - Revision history

Frosch: /* Vehicle Start/stop check (31) */

2025-05-13T13:36:41Z

Vehicle Start/stop check (31)

← Older revision		Revision as of 13:36, 13 May 2025
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	\|-		\|-
	\|400\|\| Start/stop action shall succeed.		\|400\|\| Start/stop action shall succeed.
			\|-
			\|40F\|\| {{ottdp\|15\|no}} Display error message using text ID from register 0x100. (not limited to D0xx texts)
	\|}		\|}

Frosch: use new grf templates

2012-04-01T13:29:03Z

use new grf templates

← Older revision		Revision as of 13:29, 1 April 2012
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	bit 1 of variable B2. If set, the vehicle is currently stopped and if clear, the vehicle is moving (or at least, not stopped manually).		bit 1 of variable B2. If set, the vehicle is currently stopped and if clear, the vehicle is moving (or at least, not stopped manually).

	{{~~grf~~\|7}} For GRF version 7 and below the valid return values are:		{{grfTill\|7}} For GRF version 7 and below the valid return values are:
	{\| \|-		{\| \|-
	\|00..FE\|\| Display error message using D0xx (D000..D0FE) text as second line.		\|00..FE\|\| Display error message using D0xx (D000..D0FE) text as second line.
Line 18:		Line 18:
	\|}		\|}

	{{~~grf~~\|8}} For GRF version 8 and above the valid return values are:		{{grfFrom\|8}} For GRF version 8 and above the valid return values are:
	{\| \|-		{\| \|-
	\|00..3FF\|\| Display error message using D0xx (D000..D3FF) text as second line.		\|00..3FF\|\| Display error message using D0xx (D000..D3FF) text as second line.

Frosch: grf version 8

2011-11-09T00:57:07Z

grf version 8

@@ Line 5: / Line 5: @@
 bit 1 of variable B2. If set, the vehicle is currently stopped and if clear, the vehicle is moving (or at least, not stopped manually).
 The callback is always used when defined, no bit in the action 0 property needs to be set to activate it.
 [[Category:Callbacks]]

Pm-bot: Create a separate page for each callback

2011-06-16T18:58:05Z

Create a separate page for each callback

New page

== Vehicle Start/stop check (31) ==

This callback is called whenever a player (or the AI) tries to start or stop a vehicle. This is mainly useful for preventing vehicles
from leaving the depot unless a given condition is met. To check whether a vehicle is being started or stopped, check
bit 1 of variable B2. If set, the vehicle is currently stopped and if clear, the vehicle is moving (or at least, not stopped manually).

The return value is a D0xx text to use as second line of an error message, or FF to indicate that the start/stop action should succeed.
The callback is always used when defined, no bit in the action 0 property needs to be set to activate it.
[[Category:Callbacks]]

← Older revision		Revision as of 13:29, 1 April 2012
Line 5:		Line 5:
	bit 1 of variable B2. If set, the vehicle is currently stopped and if clear, the vehicle is moving (or at least, not stopped manually).		bit 1 of variable B2. If set, the vehicle is currently stopped and if clear, the vehicle is moving (or at least, not stopped manually).

	{{~~grf~~\|7}} For GRF version 7 and below the valid return values are:		{{grfTill\|7}} For GRF version 7 and below the valid return values are:
	{\| \|-		{\| \|-
	\|00..FE\|\| Display error message using D0xx (D000..D0FE) text as second line.		\|00..FE\|\| Display error message using D0xx (D000..D0FE) text as second line.
Line 18:		Line 18:
	\|}		\|}

	{{~~grf~~\|8}} For GRF version 8 and above the valid return values are:		{{grfFrom\|8}} For GRF version 8 and above the valid return values are:
	{\| \|-		{\| \|-
	\|00..3FF\|\| Display error message using D0xx (D000..D3FF) text as second line.		\|00..3FF\|\| Display error message using D0xx (D000..D3FF) text as second line.