quakeforge/tools/qfcc/test/motor.r

15 lines
398 B
R

typedef @algebra(float(3,0,1)) PGA;
typedef PGA.group_mask(0xa) bivector_t;
typedef PGA.group_mask(0x1e) motor_t;
motor_t
make_motor (vec4 translation, vec4 rotation)
{
auto dt = (PGA.group_mask(0x18)) translation;
auto q = (PGA.group_mask(0x06)) rotation;
motor_t t = { .scalar = 1, .bvecp = -dt.bvecp };
motor_t r = { .scalar = q.scalar, .bvect = q.bvect };
motor_t m = t * r;
return m;
}