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Move line_from_origin and aabb functions to the window code

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Abdelrahman Said 2024-02-25 20:30:26 +00:00
parent 4610561eff
commit b847f87ee5
2 changed files with 20 additions and 0 deletions
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2
include/window.h
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@ -80,5 +80,7 @@ void draw_rect(const window *wnd, rect rec, colour colour);
void fill_triangle(const window *wnd, triangle triangle, colour colour);
void fill_quad(const window *wnd, quad qd, colour colour);
void fill_rect(const window *wnd, rect rec, colour colour);
line line_from_origin(point origin, f64 angle, i32 line_length);
bool aabb(rect rec, i32 x, i32 y);
#endif // !WINDOW_H

18
src/window.c
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@ -162,6 +162,24 @@ void fill_quad(const window *wnd, quad qd, colour colour) {
fill_triangle(wnd, t1, colour);
}
line line_from_origin(point origin, f64 angle, i32 line_length) {
f64 rad = radians(angle);
f64 direction = angle / absolute(angle) * -1;
i32 adjacent = line_length * cos(rad) * direction; // dx
i32 opposite = line_length * sin(rad) * direction; // dy
return (line){
(point){origin.x + adjacent, origin.y + opposite},
origin,
};
}
bool aabb(rect rec, i32 x, i32 y) {
return x > rec.topleft.x && x <= rec.topleft.x + rec.w && y > rec.topleft.y &&
y <= rec.topleft.y + rec.h;
}
internal inline bool inside_triangle(triangle tri, point p) {
// Based on the following video:
// https://www.youtube.com/watch?v=HYAgJN3x4GA