Callback: Control special industry effects - Revision history

Frosch: use new grf templates

2012-04-01T13:31:21Z

use new grf templates

← Older revision		Revision as of 13:31, 1 April 2012
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	This callback is available from {{ttdp\|2.5}} TTDPatch 2.0.1 a73 and above		This callback is available from {{ttdp\|2.5}} TTDPatch 2.0.1 a73 and above

	{{~~grf~~\|8}} Note that GRF versions 7 and lower only distinguished zero and non-zero return values for effect 0 and 1.		{{grfTill\|7}} Note that GRF versions 7 and lower only distinguished zero and non-zero return values for effect 0 and 1.

	[[Category:Callbacks]]		[[Category:Callbacks]]

Frosch: grf version 8

2011-11-09T00:35:39Z

grf version 8

← Older revision		Revision as of 00:35, 9 November 2011
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	This callback allows you to control some aspects of the special effects enabled in property 1A. The lowest byte of variable 18 always contains the number of the special effect, which equals to the bit number being set in property 1A. Currently only effect 0 (plant fields periodically) and effect 1 (cut nearby trees periodically) are supported.		This callback allows you to control some aspects of the special effects enabled in property 1A. The lowest byte of variable 18 always contains the number of the special effect, which equals to the bit number being set in property 1A. Currently only effect 0 (plant fields periodically) and effect 1 (cut nearby trees periodically) are supported.
	* For effect 0 you should return ~~zero~~ to avoid planting fields and ~~any other value~~ to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.		* For effect 0 you should return 0 to avoid planting fields and 1 to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.
	* For effect 1 you should return ~~zero~~ to avoid cutting a tree and ~~any other value~~ to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.		* For effect 1 you should return 0 to avoid cutting a tree and 1 to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.

	This callback is available from {{ttdp\|2.5}} TTDPatch 2.0.1 a73 and above		This callback is available from {{ttdp\|2.5}} TTDPatch 2.0.1 a73 and above

			{{grf\|8}} Note that GRF versions 7 and lower only distinguished zero and non-zero return values for effect 0 and 1.

	[[Category:Callbacks]]		[[Category:Callbacks]]

Planetmaker: /* Control special industry effects (3B) */ fix: ttdp version

2011-07-23T10:54:17Z

Control special industry effects (3B): fix: ttdp version

← Older revision		Revision as of 10:54, 23 July 2011
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	* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.		* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.

	This callback is available from {{ttdp\|2.0}} TTDPatch 2.0.1 a73 and above		This callback is available from {{ttdp\|2.5}} TTDPatch 2.0.1 a73 and above
	[[Category:Callbacks]]		[[Category:Callbacks]]

Planetmaker: /* Control special industry effects (3B) */ add ttdp version info

2011-07-23T02:59:02Z

Control special industry effects (3B): add ttdp version info

← Older revision		Revision as of 02:59, 23 July 2011
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	* For effect 0 you should return zero to avoid planting fields and any other value to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.		* For effect 0 you should return zero to avoid planting fields and any other value to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.
	* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.		* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.

			This callback is available from {{ttdp\|2.0}} TTDPatch 2.0.1 a73 and above
	[[Category:Callbacks]]		[[Category:Callbacks]]

Hirundo: /* Control special industry effects (3B) */ - update acc. r22673

2011-07-20T19:54:33Z

Control special industry effects (3B): - update acc. r22673

← Older revision		Revision as of 19:54, 20 July 2011
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	This callback allows you to control some aspects of the special effects enabled in property 1A. The lowest byte of variable 18 always contains the number of the special effect, which equals to the bit number being set in property 1A. Currently only effect 0 (plant fields periodically) and effect 1 (cut nearby trees periodically) are supported.		This callback allows you to control some aspects of the special effects enabled in property 1A. The lowest byte of variable 18 always contains the number of the special effect, which equals to the bit number being set in property 1A. Currently only effect 0 (plant fields periodically) and effect 1 (cut nearby trees periodically) are supported.
	* For effect 0 you should return zero to avoid planting fields and any other value to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.		* For effect 0 you should return zero to avoid planting fields and any other value to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.
	* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. ~~You~~ don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.		* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. In TTDPatch and OpenTTD prior to r22673, you don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.
	[[Category:Callbacks]]		[[Category:Callbacks]]

Pm-bot: Create a separate page for each callback

2011-06-16T18:58:15Z

Create a separate page for each callback

New page

== Control special industry effects (3B) ==

This callback allows you to control some aspects of the special effects enabled in property 1A. The lowest byte of variable 18 always contains the number of the special effect, which equals to the bit number being set in property 1A. Currently only effect 0 (plant fields periodically) and effect 1 (cut nearby trees periodically) are supported.
* For effect 0 you should return zero to avoid planting fields and any other value to plant a field. The callback is called every 256 ticks for a given industry. Variable 10 contains 32 random bits that can be used to randomize the behaviour. Industry variable AAh (word) can be used to make the plantings rarer, but please note that the low byte is always zero at this point. The default behaviour is giving 1/8 chance to plant a new field every 256 ticks.
* For effect 1 you should return zero to avoid cutting a tree and any other value to try cutting one. The callback is called every 256 ticks for a given industry. You don't get random values this case, but you can still use variable AAh; the low byte is always zero here as well. The default behaviour is trying to cut a tree every 512 ticks.
[[Category:Callbacks]]