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44 lines
1.9 KiB
Markdown
44 lines
1.9 KiB
Markdown
# 2.5D Demo Project with GDScript
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This demo project shows a way to create a 2.5D game
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in Godot by mixing 2D and 3D nodes. It also adds a
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2.5D editor viewport for easily editing 2.5D levels.
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Language: GDScript
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Renderer: GLES 2
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Note: There is a Mono C# version available [here](https://github.com/godotengine/godot-demo-projects/tree/master/mono/2.5d).
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Check out this demo on the asset library: https://godotengine.org/asset-library/asset/583
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## How does it work?
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Custom node types are added in a Godot plugin to allow 2.5D objects. Node25D serves as the base for all 2.5D objects. Its first child must be a 3D Spatial, which is used to calculate its position. Then, add a 2D Sprite (or similar) to display the object.
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Inside of Node25D, a 2.5D transformation matrix made of three `Vector2`s is used to calculate the 2D position from the 3D position. For getting a 3D position, this project uses KinematicBody and StaticBody (3D), but these only exist for math - the camera is 2D and all sprites are 2D. You are able to use any Spatial node for math.
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Several view modes are implemented, including top down, front side, 45 degree, isometric, and two oblique modes. To implement a different view angle, all you need to do is create a new set of basis vectors in Node25D, use it on all instances, and of course create sprites to display that object in 2D.
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The plugin also adds YSort25D to sort Node25D nodes, and ShadowMath25D for calculating a shadow (a simple KinematicBody that tries to cast downward).
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## Screenshots
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## Music License
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`assets/mr_mrs_robot.ogg` Copyright © circa 2008 Juan Linietsky, CC-BY: Attribution.
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