7515952855

Committed 14 Jan 2024 01:00AM CUT coverage: 100.0%. Remained the same

Build # 7515952855

Build Type

push

github

Committed by

web-flow

Commit Message

Reduce archetype size by storing layouts in a growing slice (#327)

Use a growing slice to hold archetype mem layouts, instead of a fixes-size array.

Reduces archetype size from 4 kB to 88 B, plus the heap-allocated slice. The slice starts with size 16 (i.e. 16 component types) and grows in steps of 16 up to 256.

# Commits

* reduce archetype size by storing components in a growing slice
* re-arrange test functions
* document undefined behavior for IDs out of range, update changelog
* move non-zero capacity calculation to a separate function
* check component registry limit vs. int, not uint8
* move arche-serde up in the tools list in README

Run Details

4871 of 4871 relevant lines covered (100.0%)

65485.4 hits per line

Source File
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100.0

/ecs/config.go

package ecs

// Config provides configuration for an ECS [World].
type Config struct {
        // Capacity increment for archetypes and the entity index.
        // The default value is 128.
        CapacityIncrement int
        // Capacity increment for archetypes with a relation component.
        // The default value is CapacityIncrement.
        RelationCapacityIncrement int
}

// NewConfig creates a new default [World] configuration.
func NewConfig() Config {
        return Config{
                CapacityIncrement:         128,
                RelationCapacityIncrement: 0,
        }
}

// WithCapacityIncrement return a new Config with CapacityIncrement set.
// Use with method chaining.
func (c Config) WithCapacityIncrement(inc int) Config {
        c.CapacityIncrement = inc
        return c
}

// WithRelationCapacityIncrement return a new Config with RelationCapacityIncrement set.
// Use with method chaining.
func (c Config) WithRelationCapacityIncrement(inc int) Config {
        c.RelationCapacityIncrement = inc
        return c
}

1	package ecs
2
3	// Config provides configuration for an ECS [World].
4	type Config struct {
5	// Capacity increment for archetypes and the entity index.
6	// The default value is 128.
7	CapacityIncrement int
8	// Capacity increment for archetypes with a relation component.
9	// The default value is CapacityIncrement.
10	RelationCapacityIncrement int
11	}
12
13	// NewConfig creates a new default [World] configuration.
14	func NewConfig() Config {	124✔
15	return Config{	124✔
16	CapacityIncrement: 128,	124✔
17	RelationCapacityIncrement: 0,	124✔
18	}	124✔
19	}	124✔
20
21	// WithCapacityIncrement return a new Config with CapacityIncrement set.
22	// Use with method chaining.
23	func (c Config) WithCapacityIncrement(inc int) Config {	9✔
24	c.CapacityIncrement = inc	9✔
25	return c	9✔
26	}	9✔
27
28	// WithRelationCapacityIncrement return a new Config with RelationCapacityIncrement set.
29	// Use with method chaining.
30	func (c Config) WithRelationCapacityIncrement(inc int) Config {	5✔
31	c.RelationCapacityIncrement = inc	5✔
32	return c	5✔
33	}	5✔

mlange-42 / arche / 7515952855

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