42 lines
900 B
Go
42 lines
900 B
Go
package doodads
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import (
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"git.kirsle.net/apps/doodle/lib/render"
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)
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// Actor is a reusable run-time drawing component used in Doodle. Actors are an
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// active instance of a Doodad which have a position, velocity, etc.
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type Actor interface {
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ID() string
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// Position and velocity, not saved to disk.
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Position() render.Point
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Velocity() render.Point
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Size() render.Rect
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Grounded() bool
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SetGrounded(bool)
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// Actor's elected hitbox set by their script.
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SetHitbox(x, y, w, h int)
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Hitbox() render.Rect
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// Movement commands.
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MoveBy(render.Point) // Add {X,Y} to current Position.
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MoveTo(render.Point) // Set current Position to {X,Y}.
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}
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// GetBoundingRect computes the full pairs of points for the collision box
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// around a doodad actor.
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func GetBoundingRect(d Actor) render.Rect {
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var (
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P = d.Position()
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S = d.Size()
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)
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return render.Rect{
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X: P.X,
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Y: P.Y,
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W: S.W,
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H: S.H,
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}
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}
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