nimble install bumpy
Based on the book http://www.jeffreythompson.org/collision-detection/table_of_contents.php
Supported collisions:
| Shape | Point | Circle | Rectangle | Segment | Polygon |
|---|---|---|---|---|---|
| Point | ✅ | ✅ | ✅ | ✅ | ✅ |
| Circle | ✅ | ✅ | ✅ | ✅ | ✅ |
| Rectangle | ✅ | ✅ | ✅ | ✅ | ✅ |
| Segment | ✅ | ✅ | ✅ | ✅ | ✅ |
| Polygon | ✅ | ✅ | ✅ | ✅ | ✅ |
import bumpyCircle = object
pos*: Vec2
radius*: float32Segment = object
at*: Vec2
to*: Vec2proc circle(pos: Vec2; radius: float32): Circle {.inline.}proc segment(at, to: Vec2): Segment {.inline.}Do two points overlap? (Must be exactly equal.)
proc overlap(a, b: Vec2): bool {.inline.}Test overlap: point vs circle.
proc overlap(a: Vec2; b: Circle): bool {.inline.}Test overlap: circle vs point.
proc overlap(a: Circle; b: Vec2): bool {.inline.}Test overlap: circle vs circle.
proc overlap(a, b: Circle): boolTest overlap: point vs rectangle.
proc overlap(a: Vec2; b: Rect): boolTest overlap: rect vs point.
proc overlap(a: Rect; b: Vec2): bool {.inline.}Do two rectangles overlap?
proc overlap(a, b: Rect): boolTest overlap: circle vs rectangle.
proc overlap(a: Circle; b: Rect): boolTest overlap: rect vs circle.
proc overlap(a: Rect; b: Circle): bool {.inline.}Test overlap: point vs segment.
proc overlap(a: Vec2; s: Segment; buffer = 0.1): boolTest overlap: segment vs point.
proc overlap(a: Segment; b: Vec2; buffer = 0.1): bool {.inline, tags: [].}Test overlap: circle vs segment.
proc overlap(c: Circle; s: Segment): boolTest overlap: circle vs segment.
proc overlap(s: Segment; c: Circle): bool {.inline.}Test overlap: segment vs segment.
proc overlap(d, s: Segment): boolTest overlap: segments vs rectangle.
proc overlap(s: Segment; r: Rect): boolTest overlap: rectangle vs segment.
proc overlap(r: Rect; s: Segment): bool {.inline.}Test overlap: polygon vs point.
proc overlap(poly: seq[Vec2]; p: Vec2): boolTest overlap: point vs polygon.
proc overlap(p: Vec2; poly: seq[Vec2]): bool {.inline.}Test overlap: polygon vs circle.
proc overlap(poly: seq[Vec2]; c: Circle): boolTest overlap: circle vs polygon.
proc overlap(c: Circle; poly: seq[Vec2]): bool {.inline.}Test overlap: polygon vs rect.
proc overlap(poly: seq[Vec2]; r: Rect): boolTest overlap: rect vs polygon.
proc overlap(r: Rect; poly: seq[Vec2]): bool {.inline.}Test overlap: polygon vs segment.
proc overlap(poly: seq[Vec2]; s: Segment): boolTest overlap: segment vs polygon.
proc overlap(s: Segment; poly: seq[Vec2]): bool {.inline.}Test overlap: polygon vs polygon.
proc overlap(a: seq[Vec2]; b: seq[Vec2]): boolChecks if the a segment intersects b segment. If it returns true, at will have point of intersection
proc intersects(a, b: Segment; at: var Vec2): bool {.inline, tags: [].}