sanspie
dae4bc19e1
Foundation for the aego engine. core/ errs, log, handle arena, mathx, clock, stats platform SDL3 backend plus a headless one, input state, events gpu device abstraction with gl33 and null backends vfs scheme-based virtual filesystem with overlay mounts engine builder, module registry, phase-ordered system loop, jobs demos basic, resize, input, headless; sandbox driver OpenGL bindings are generated into gpu/gl33/gl by tools/gen-gl.sh, so the module has no external dependencies.
41 lines
888 B
Go
41 lines
888 B
Go
package mathx
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type Rect struct{ X, Y, W, H float32 }
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type AABB struct{ Min, Max Vec2 }
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func (r Rect) Contains(p Vec2) bool {
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return p.X >= r.X && p.Y >= r.Y && p.X < r.X+r.W && p.Y < r.Y+r.H
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}
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func (r Rect) ToAABB() AABB {
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return AABB{
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Min: Vec2{X: r.X, Y: r.Y},
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Max: Vec2{X: r.X + r.W, Y: r.Y + r.H},
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}
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}
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func (r Rect) Center() Vec2 {
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return Vec2{X: r.X + r.W/2, Y: r.Y + r.H/2}
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}
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func (a AABB) Intersects(b AABB) bool {
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return a.Min.X < b.Max.X && b.Min.X < a.Max.X &&
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a.Min.Y < b.Max.Y && b.Min.Y < a.Max.Y
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}
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func (a AABB) Contains(p Vec2) bool {
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return p.X >= a.Min.X && p.Y >= a.Min.Y && p.X <= a.Max.X && p.Y <= a.Max.Y
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}
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func (a AABB) Union(b AABB) AABB {
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return AABB{
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Min: Vec2{X: min(a.Min.X, b.Min.X), Y: min(a.Min.Y, b.Min.Y)},
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Max: Vec2{X: max(a.Max.X, b.Max.X), Y: max(a.Max.Y, b.Max.Y)},
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}
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}
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func (a AABB) Size() Vec2 {
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return a.Max.Sub(a.Min)
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}
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