From 69bfcb3c5fec6957e00264d24990dd2f1263cd50 Mon Sep 17 00:00:00 2001 From: iamcheeseman Date: Wed, 4 Mar 2026 16:12:25 -0500 Subject: better muntik --- src/phys/body.odin | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++- src/phys/world.odin | 59 +++++--------------------------------------------- 2 files changed, 66 insertions(+), 55 deletions(-) (limited to 'src/phys') diff --git a/src/phys/body.odin b/src/phys/body.odin index 54177e5..4c9dff1 100644 --- a/src/phys/body.odin +++ b/src/phys/body.odin @@ -1,8 +1,9 @@ package phys +import "core:log" import "core:math" import "core:math/linalg" -import "core:log" +import hm "core:container/handle_map" Vec2 :: [2]f32 @@ -45,6 +46,7 @@ Raycast_Collision :: struct { Body :: struct { handle: Body_Handle, + udata: any, bin_idx: i32, rect: Rect, active: bool, @@ -157,3 +159,61 @@ raycast_to_aabb :: proc( return } + +@(require_results) +get_velocity :: proc(h: Body_Handle) -> Vec2 { + return hm.get(&world.bodies, h).vel +} + +set_velocity :: proc(h: Body_Handle, vel: Vec2) { + hm.get(&world.bodies, h).vel = vel +} + +@(require_results) +get_position :: proc(h: Body_Handle) -> Vec2 { + return hm.get(&world.bodies, h).pos +} + +set_position :: proc(h: Body_Handle, new_pos: Vec2) { + b := hm.get(&world.bodies, h) + + prev_bin := _hash_bin(_world_to_bin(b.pos + b.rect.start)) + res_bin := _hash_bin(_world_to_bin(new_pos + b.rect.start)) + + if prev_bin != res_bin { + _remove_from_bins(b^) + b.pos = new_pos + _add_to_bins(b) + } else { + b.pos = new_pos + } +} + +@(require_results) +get_collisions :: proc(h: Body_Handle) -> bit_set[Collision_Type;u8] { + return hm.get(&world.bodies, h).collisions +} + +@(require_results) +get_rect :: proc(h: Body_Handle) -> Rect { + return hm.get(&world.bodies, h).rect +} + +@(require_results) +get_layers :: proc(h: Body_Handle) -> Layer_Set { + return hm.get(&world.bodies, h).layers +} + +@(require_results) +get_mask :: proc(h: Body_Handle) -> Layer_Set { + return hm.get(&world.bodies, h).mask +} + +@(require_results) +get_udata :: proc(h: Body_Handle) -> any { + return hm.get(&world.bodies, h).udata +} + +set_udata :: proc(h: Body_Handle, udata: any) { + hm.get(&world.bodies, h).udata = udata +} diff --git a/src/phys/world.odin b/src/phys/world.odin index f569a5d..ecd636d 100644 --- a/src/phys/world.odin +++ b/src/phys/world.odin @@ -26,12 +26,12 @@ destroy_world :: proc() { hm.dynamic_destroy(&world.bodies) } -@(private = "file") +@(private) _hash_bin :: proc(x: i32, y: i32) -> u32 { return transmute(u32)((x * 73856093) ~ (y * 19349663)) } -@(private = "file") +@(private) _world_to_bin :: proc(point: Vec2) -> (i32, i32) { return \ i32(math.floor(point.x / BIN_SIZE)), @@ -60,13 +60,13 @@ get_surrounding_bins :: proc( return neighbors } -@(private = "file") +@(private) _find_bin :: proc(b: Body) -> ^[dynamic]Body_Handle { bin_x, bin_y := _world_to_bin(b.pos + b.rect.start) return &world.bins[_hash_bin(bin_x, bin_y) % BIN_COUNT] } -@(private = "file") +@(private) _add_to_bins :: proc(b: ^Body) { bin := _find_bin(b^) idx := i32(len(bin)) @@ -74,7 +74,7 @@ _add_to_bins :: proc(b: ^Body) { b.bin_idx = idx } -@(private = "file") +@(private) _remove_from_bins :: proc(b: Body) { bin := _find_bin(b) @@ -306,52 +306,3 @@ update_body :: proc(h: Body_Handle) { set_position(h, res_pos) } - -@(require_results) -get_velocity :: proc(h: Body_Handle) -> Vec2 { - return hm.get(&world.bodies, h).vel -} - -set_velocity :: proc(h: Body_Handle, vel: Vec2) { - hm.get(&world.bodies, h).vel = vel -} - -@(require_results) -get_position :: proc(h: Body_Handle) -> Vec2 { - return hm.get(&world.bodies, h).pos -} - -set_position :: proc(h: Body_Handle, new_pos: Vec2) { - b := hm.get(&world.bodies, h) - - prev_bin := _hash_bin(_world_to_bin(b.pos + b.rect.start)) - res_bin := _hash_bin(_world_to_bin(new_pos + b.rect.start)) - - if prev_bin != res_bin { - _remove_from_bins(b^) - b.pos = new_pos - _add_to_bins(b) - } else { - b.pos = new_pos - } -} - -@(require_results) -get_collisions :: proc(h: Body_Handle) -> bit_set[Collision_Type;u8] { - return hm.get(&world.bodies, h).collisions -} - -@(require_results) -get_rect :: proc(h: Body_Handle) -> Rect { - return hm.get(&world.bodies, h).rect -} - -@(require_results) -get_layers :: proc(h: Body_Handle) -> Layer_Set { - return hm.get(&world.bodies, h).layers -} - -@(require_results) -get_mask :: proc(h: Body_Handle) -> Layer_Set { - return hm.get(&world.bodies, h).mask -} -- cgit v1.3-2-g0d8e