GM: image speed
From GMpedia.org Wiki
- The correct title of this article is image_speed. It appears incorrectly here because of technical restrictions.
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image_speed | |
| Type: | variable |
| Globalism: | Local |
| Editable: | Yes |
The image_index local variable is the variable that defines the speed that the sub-image of an object's sprite progresses. Each sprite could have an number of images greater than 1, and the object 'animates' by moving a ceratin number of images per step.
[edit] Definition
Strictly speaking its "definition", image_speed is the number added to the current image index on each step. But this does not explain what does it do.
[edit] What does it do
Game Maker automatically increments the value image_index (and image_single in pre-6.x versions, but with conditions) of image_speed itself, then wraps the value around the maximum number of images, so if a sprite has 30 images, and the number 34 is reached, it is automatically turned into 4.
[edit] Conditions of incrementing image_single in pre-6.x versions
The image_single variable is incrmented then wrapped around the maximum number of existing images in the sprite, however, unlike image_index, when image_single is equal to -1, it is not incremented at all.
