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weapon animation wip

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This commit is contained in:
jacob 2026-01-31 10:29:05 -06:00
parent da643646a8
commit 4e96e2f4d5
4 changed files with 57 additions and 272 deletions
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64
src/base/base_math.c
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@ -838,7 +838,7 @@ b32 MatchAffine(Affine af0, Affine af1)
//- Initialization
Affine AffineFromPos(Vec2 v)
Affine AffineFromTranslation(Vec2 v)
{
Affine af;
af.bx = VEC2(1, 0);
@ -988,26 +988,22 @@ Vec2 MulAffineVec2(Affine af, Vec2 v)
return result;
}
//- Helpers
Affine AffineFromXform(Xform xf)
Affine MulAffineXformTR(Affine af, Xform xf)
{
Affine result = Zi;
Vec2 rot = xf.r;
if (rot.x == 0 && rot.y == 0)
{
rot.x = 1;
}
else
{
rot = NormVec2(rot);
}
result.bx = rot;
result.by = PerpVec2(rot);
result.og = xf.t;
return result;
af = TranslateAffine(af, xf.t);
af = RotateAffine(af, xf.r);
return af;
}
Affine MulAffineXformRT(Affine af, Xform xf)
{
af = RotateAffine(af, xf.r);
af = TranslateAffine(af, xf.t);
return af;
}
//- Helpers
Affine BasisFromAffine(Affine af)
{
Affine result = Zi;
@ -1056,23 +1052,24 @@ Vec2 ScaleFromAffine(Affine af)
////////////////////////////////////////////////////////////
//~ Xform
Xform MakeXform(Vec2 t, Vec2 r)
{
Xform xf;
xf.t = t;
xf.r = NormRot(r);
return xf;
}
Xform NormXform(Xform xf)
{
if (xf.r.x == 0 && xf.r.y == 0)
{
xf.r.x = 1;
}
else
{
xf.r = NormVec2(xf.r);
}
xf.r = NormRot(xf.r);
return xf;
}
Xform InvertXform(Xform xf)
{
xf.t = NegVec2(xf.t);
xf.r = NegVec2(xf.r);
xf.r.y = -xf.r.y;
return xf;
}
@ -1091,6 +1088,19 @@ Vec2 MulXformVec2(Xform xf, Vec2 v)
return result;
}
Vec2 NormRot(Vec2 r)
{
if (r.x == 0 && r.y == 0)
{
r.x = 1;
}
else
{
r = Vec2WithLen(r, 1);
}
return r;
}
////////////////////////////////////////////////////////////
//~ Spring

11
src/base/base_math.h
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@ -463,7 +463,7 @@ Rng2I32 DivRng2I32Vec2I32(Rng2I32 a, Vec2I32 v);
b32 MatchAffine(Affine af0, Affine af1);
//- Initialization
Affine AffineFromPos(Vec2 v);
Affine AffineFromTranslation(Vec2 v);
Affine AffineFromRot(Vec2 r);
Affine AffineFromAngle(f32 r);
Affine AffineFromScale(Vec2 scale);
@ -489,12 +489,13 @@ Affine LerpAffine(Affine a, Affine b, f32 t);
Affine InvertAffine(Affine af);
//- Mul
Vec2 MulAffineVec2(Affine af, Vec2 v);
Affine MulAffine(Affine a, Affine b);
Vec2 MulAffineVec2(Affine af, Vec2 v);
Vec2 MulAffineBasisVec2(Affine af, Vec2 v);
Affine MulAffineXformTR(Affine af, Xform xf);
Affine MulAffineXformRT(Affine af, Xform xf);
//- Helpers
Affine AffineFromXform(Xform xf);
Affine BasisFromAffine(Affine af);
f32 DeterminantFromAffine(Affine af);
Vec2 RightFromAffine(Affine af);
@ -510,10 +511,14 @@ Vec2 ScaleFromAffine(Affine af);
#define XformIdentity ((Xform) { .r = { 1, 0 } })
#define CompXformIdentity { .r = { 1, 0 } }
Xform MakeXform(Vec2 t, Vec2 r);
Xform NormXform(Xform xf);
Xform InvertXform(Xform xf);
Vec2 MulXformVec2(Xform xf, Vec2 v);
Vec2 NormRot(Vec2 r);
////////////////////////////////////////////////////////////
//~ Spring

BIN
src/pp/pp_res/sprite/bla3.ase (Stored with Git LFS)
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Binary file not shown.

250
src/pp/pp_vis/pp_vis_core.c
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@ -1845,30 +1845,26 @@ void V_TickForever(WaveLaneCtx *lane)
Vec2 pix_scale = VEC2(1.0 / P_CellsPerMeter, 1.0 / P_CellsPerMeter);
// FIXME: Remove this
Xform ent_to_world_xf = ent->xf;
ent_to_world_xf = MakeXform(ent->xf.t, ent->control.look);
Affine ent_to_world_af = MulAffineXformTR(AffineIdentity, ent_to_world_xf);
//- Compute body
SPR_Slice body = SPR_SliceFromSheet(anim.sheet, anim.span, anim.frame_seq);
Vec2 body_dims = DimsFromRng2(body.tex_rect);
Affine body_to_origin_af = AffineIdentity;
Affine body_to_world_af = ent_to_world_af;
{
Xform anchor_to_body_xf = InvertXform(body.rays[SPR_RayKind_Anchor]);
body_to_origin_af = ScaleAffine(body_to_origin_af, pix_scale);
body_to_origin_af = RotateAffine(body_to_origin_af, anchor_to_body_xf.r);
body_to_origin_af = TranslateAffine(body_to_origin_af, anchor_to_body_xf.t);
body_to_world_af = ScaleAffine(body_to_world_af, pix_scale);
body_to_world_af = RotateAffine(body_to_world_af, anchor_to_body_xf.r);
body_to_world_af = TranslateAffine(body_to_world_af, anchor_to_body_xf.t);
}
Affine body_origin_to_ent_af = AffineIdentity;
{
// FIXME: Remove this
Xform ent_xf = ent->xf;
ent_xf.r = ent->control.look;
//- Push body quad
if (body.ready)
{
Affine body_to_world_af = MulAffine(AffineFromXform(ent_xf), MulAffine(body_origin_to_ent_af, body_to_origin_af));
Affine body_uv_to_world_af = ScaleAffine(body_to_world_af, DimsFromRng2(body.tex_rect));
V_Quad *quad = PushStruct(frame->quads_arena, V_Quad);
@ -1882,232 +1878,6 @@ void V_TickForever(WaveLaneCtx *lane)
// for (P_Ent *ent = P_FirstEnt(local_frame); !P_IsEntNil(ent); ent = P_NextEnt(ent))
// {
// if (ent->is_guy)
// {
// P_Anim anim = P_AnimFromEnt(ent, local_frame->time_ns);
// Vec2 pix_scale = VEC2(1.0 / P_CellsPerMeter, 1.0 / P_CellsPerMeter);
// //- Compute body
// SPR_Slice body_slice = SPR_SliceFromSheet(anim.sheet, anim.span, anim.frame_seq);
// Affine body_slice_to_origin_af = AffineIdentity;
// Xform body_ap_to_origin_xf = XformIdentity;
// {
// Vec2 body_slice_dims = DimsFromRng2(body_slice.bounds);
// Xform origin_to_slice_corner_xf = body_slice.rays[SPR_RayKind_Origin];
// origin_to_slice_corner_xf.t = SubVec2(origin_to_slice_corner_xf.t, body_slice.bounds.p0);
// origin_to_slice_corner_xf = InvertXform(origin_to_slice_corner_xf);
// Xform ap_to_slice_corner_xf = body_slice.rays[SPR_RayKind_Ap];
// ap_to_slice_corner_xf.t = SubVec2(ap_to_slice_corner_xf.t, body_slice.bounds.p0);
// ap_to_slice_corner_xf = InvertXform(ap_to_slice_corner_xf);
// // body_ap_to_origin_xf = MulXform(InvertXform(origin_to_slice_corner_xf), ap_to_slice_corner_xf);
// // FIXME: Remove this
// {
// Xform a = InvertXform(origin_to_slice_corner_xf);
// Xform b = ap_to_slice_corner_xf;
// body_ap_to_origin_xf.r = RotateVec2(a.r, b.r);
// body_ap_to_origin_xf.t = AddVec2(b.t, a.t);
// }
// body_slice_to_origin_af = ScaleAffine(body_slice_to_origin_af, pix_scale);
// body_slice_to_origin_af = RotateAffine(body_slice_to_origin_af, origin_to_slice_corner_xf.r);
// body_slice_to_origin_af = TranslateAffine(body_slice_to_origin_af, origin_to_slice_corner_xf.t);
// body_slice_to_origin_af = ScaleAffine(body_slice_to_origin_af, body_slice_dims);
// }
// //- Compute weapon
// // SPR_Slice wep_slice = SPR_SliceFromSheet(anim.wep_sheet, anim.span, anim.frame_seq);
// // Affine wep_slice_to_origin_af = AffineIdentity;
// // {
// // Vec2 wep_slice_dims = DimsFromRng2(wep_slice.bounds);
// // Xform origin_ray = wep_slice.rays[SPR_RayKind_Origin];
// // origin_ray.t = SubVec2(origin_ray.t, wep_slice.bounds.p0);
// // origin_ray = InvertXform(origin_ray);
// // wep_slice_to_origin_af = ScaleAffine(wep_slice_to_origin_af, pix_scale);
// // wep_slice_to_origin_af = RotateAffine(wep_slice_to_origin_af, origin_ray.r);
// // wep_slice_to_origin_af = TranslateAffine(wep_slice_to_origin_af, origin_ray.t);
// // wep_slice_to_origin_af = ScaleAffine(wep_slice_to_origin_af, wep_slice_dims);
// // }
// //- Compute weapon
// // SPR_Slice wep_slice = SPR_SliceFromSheet(anim.wep_sheet, anim.span, anim.frame_seq);
// // Affine wep_to_world_af = AffineIdentity;
// // {
// // Vec2 pix_dims = DimsFromRng2(wep_slice.bounds);
// // Vec2 world_dims = DivVec2(pix_dims, P_CellsPerMeter);
// // Xform origin_ray = wep_slice.rays[SPR_RayKind_Origin];
// // origin_ray.t = SubVec2(origin_ray.t, wep_slice.bounds.p0);
// // origin_ray = InvertXform(origin_ray);
// // Affine origin_to_wep_af = AffineIdentity;
// // origin_to_wep_af = ScaleAffine(origin_to_wep_af, DivVec2Vec2(VEC2(1.0, 1.0), pix_dims));
// // origin_to_wep_af = RotateAffine(origin_to_wep_af, origin_ray.r);
// // origin_to_wep_af = TranslateAffine(origin_to_wep_af, origin_ray.t);
// // origin_to_wep_af = ScaleAffine(origin_to_wep_af, pix_dims);
// // Affine wep_to_ap_af = AffineIdentity;
// // wep_to_ap_af = ScaleAffine(wep_to_ap_af, world_dims);
// // wep_to_ap_af = MulAffine(wep_to_ap_af, origin_to_wep_af);
// // Affine ap_to_ent_af = AffineIdentity;
// // Xform ent_xf = ent->xf;
// // // FIXME: Remove this
// // ent_xf.r = ent->control.look;
// // wep_to_world_af = MulAffine(AffineFromXform(ent_xf), wep_to_ent_af);
// // }
// Affine body_slice_to_ent_af = AffineIdentity;
// body_slice_to_ent_af = MulAffine(body_slice_to_ent_af, body_slice_to_origin_af);
// // Affine body_ap_to_ent_af = AffineIdentity;
// // body_ap_to_ent_af = MulAffine(body_ap_to_ent_af, AffineFromXform(body_ap_to_origin_xf));
// // Affine wep_slice_to_ent_af = AffineIdentity;
// // wep_slice_to_ent_af = MulAffine(body_ap_to_ent_af, wep_slice_to_origin_af);
// // FIXME: Remove this
// Xform ent_xf = ent->xf;
// ent_xf.r = ent->control.look;
// //- Push body quad
// if (body_slice.ready)
// {
// Affine body_slice_to_world_af = MulAffine(AffineFromXform(ent_xf), body_slice_to_ent_af);
// V_Quad *quad = PushStruct(frame->quads_arena, V_Quad);
// quad->to_shade_af = MulAffine(frame->af.world_to_shade, body_slice_to_world_af);
// quad->tex = body_slice.tex;
// quad->tex_rect_uv = body_slice.tex_rect_uv;
// }
// //- Push weapon quad
// // if (body_slice.ready && wep_slice.ready)
// // {
// // Affine wep_slice_to_world_af = MulAffine(AffineFromXform(ent_xf), wep_slice_to_ent_af);
// // V_Quad *quad = PushStruct(frame->quads_arena, V_Quad);
// // quad->to_shade_af = MulAffine(frame->af.world_to_shade, wep_slice_to_world_af);
// // quad->tex = wep_slice.tex;
// // quad->tex_rect_uv = wep_slice.tex_rect_uv;
// // }
// }
// }
// for (P_Ent *ent = P_FirstEnt(local_frame); !P_IsEntNil(ent); ent = P_NextEnt(ent))
// {
// if (ent->is_guy)
// {
// P_Anim anim = P_AnimFromEnt(ent, local_frame->time_ns);
// //- Compute body
// SPR_Slice body_slice = SPR_SliceFromSheet(anim.sheet, anim.span, anim.frame_seq);
// Affine body_to_world_af = AffineIdentity;
// {
// Vec2 pix_dims = DimsFromRng2(body_slice.bounds);
// Vec2 world_dims = DivVec2(pix_dims, P_CellsPerMeter);
// Xform origin_ray = body_slice.rays[SPR_RayKind_Origin];
// origin_ray.t = SubVec2(origin_ray.t, body_slice.bounds.p0);
// origin_ray = InvertXform(origin_ray);
// Affine origin_to_body_af = AffineIdentity;
// origin_to_body_af = ScaleAffine(origin_to_body_af, DivVec2Vec2(VEC2(1.0, 1.0), pix_dims));
// origin_to_body_af = RotateAffine(origin_to_body_af, origin_ray.r);
// origin_to_body_af = TranslateAffine(origin_to_body_af, origin_ray.t);
// origin_to_body_af = ScaleAffine(origin_to_body_af, pix_dims);
// Affine body_to_ent_af = AffineIdentity;
// body_to_ent_af = ScaleAffine(body_to_ent_af, world_dims);
// body_to_ent_af = MulAffine(body_to_ent_af, origin_to_body_af);
// Xform ent_xf = ent->xf;
// // FIXME: Remove this
// ent_xf.r = ent->control.look;
// body_to_world_af = MulAffine(AffineFromXform(ent_xf), body_to_ent_af);
// }
// //- Compute weapon
// SPR_Slice wep_slice = SPR_SliceFromSheet(anim.wep_sheet, anim.span, anim.frame_seq);
// Affine wep_to_world_af = AffineIdentity;
// {
// Vec2 pix_dims = DimsFromRng2(wep_slice.bounds);
// Vec2 world_dims = DivVec2(pix_dims, P_CellsPerMeter);
// Xform origin_ray = wep_slice.rays[SPR_RayKind_Origin];
// origin_ray.t = SubVec2(origin_ray.t, wep_slice.bounds.p0);
// origin_ray = InvertXform(origin_ray);
// Affine origin_to_wep_af = AffineIdentity;
// origin_to_wep_af = ScaleAffine(origin_to_wep_af, DivVec2Vec2(VEC2(1.0, 1.0), pix_dims));
// origin_to_wep_af = RotateAffine(origin_to_wep_af, origin_ray.r);
// origin_to_wep_af = TranslateAffine(origin_to_wep_af, origin_ray.t);
// origin_to_wep_af = ScaleAffine(origin_to_wep_af, pix_dims);
// Affine wep_to_ap_af = AffineIdentity;
// wep_to_ap_af = ScaleAffine(wep_to_ap_af, world_dims);
// wep_to_ap_af = MulAffine(wep_to_ap_af, origin_to_wep_af);
// Affine ap_to_ent_af = AffineIdentity;
// Xform ent_xf = ent->xf;
// // FIXME: Remove this
// ent_xf.r = ent->control.look;
// wep_to_world_af = MulAffine(AffineFromXform(ent_xf), wep_to_ent_af);
// }
// //- Push weapon quad
// if (body_slice.ready && wep_slice.ready)
// {
// V_Quad *quad = PushStruct(frame->quads_arena, V_Quad);
// quad->to_shade_af = MulAffine(frame->af.world_to_shade, wep_to_world_af);
// quad->tex = wep_slice.tex;
// quad->tex_rect_uv = wep_slice.tex_rect_uv;
// }
// //- Push body quad
// // if (body_slice.ready)
// // {
// // V_Quad *quad = PushStruct(frame->quads_arena, V_Quad);
// // quad->to_shade_af = MulAffine(frame->af.world_to_shade, body_to_world_af);
// // quad->tex = body_slice.tex;
// // quad->tex_rect_uv = body_slice.tex_rect_uv;
// // }
// }
// }
//////////////////////////////
//- Push test bullet particles
@ -4294,7 +4064,7 @@ void V_TickForever(WaveLaneCtx *lane)
// P_Ent *ent = &cmd->ent;
// *ent = P_NilEnt;
// ent->key = V.guy_key;
// ent->af = AffineFromPos(guy_pos);
// ent->af = AffineFromTranslation(guy_pos);
// ent->is_guy = 1;
// ent->has_weapon = 1;
// ent->exists = 1;