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parts: implement vibration motion

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Nunuhara Cabbage
2024-07-24 20:18:04 -07:00
parent 5212d5b7f9
commit 673827cf70
1 changed files with 19 additions and 0 deletions
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src/parts/motion.c
+19
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@@ -118,6 +118,20 @@ static Point motion_calculate_point(struct parts_motion *m, int t)
};
}
static Point motion_vibration_point(struct parts_motion *m, int t)
{
if (t >= m->end_time)
return (Point) { m->end.x, m->end.y };
const float progress = motion_progress(m, t);
const int range_x = m->begin.x * (1.f - progress);
const int range_y = m->begin.y * (1.f - progress);
return (Point) {
m->end.x + (range_x ? (rand() % range_x - range_x / 2) : 0),
m->end.y + (range_y ? (rand() % range_y - range_y / 2) : 0),
};
}
static void parts_update_with_motion(struct parts *parts, struct parts_motion *motion)
{
switch (motion->type) {
@@ -162,6 +176,9 @@ static void parts_update_with_motion(struct parts *parts, struct parts_motion *m
case PARTS_MOTION_ROTATE_Z:
parts_set_rotation_z(parts, motion_calculate_f(motion, motion_t));
break;
case PARTS_MOTION_VIBRATION_SIZE:
parts_set_pos(parts, motion_vibration_point(motion, motion_t));
break;
default:
WARNING("Invalid motion type: %d", motion->type);
}
@@ -409,6 +426,8 @@ void PE_AddMotionVibrationSize(int parts_no, int begin_w, int begin_h, int begin
struct parts_motion *motion = parts_motion_alloc(PARTS_MOTION_VIBRATION_SIZE, begin_t, end_t);
motion->begin.x = begin_w;
motion->begin.y = begin_h;
motion->end.x = parts->local.pos.x;
motion->end.y = parts->local.pos.y;
parts_add_motion(parts, motion);
}