public void updateSkeleton( )
{
smd_animation p_anim = anim[cur_anim];
if (p_anim == null)
{
return;
}
float currentFrameF = currentTime * p_anim.frameRate;
float resto = currentFrameF - MathF.Floor(currentFrameF);
int frame1 = (int)MathF.Floor(currentFrameF);
int frame2 = frame1 + 1;
p_anim.finished = false;
if (p_anim.loop)
{
frame1 = frame1 % p_anim.cant_frames;
frame2 = frame2 % p_anim.cant_frames;
}
else
{
if (frame1 > p_anim.cant_frames - 1)
{
frame1 = p_anim.cant_frames - 1;
p_anim.finished = true;
}
if (frame2 > p_anim.cant_frames - 1)
{
frame2 = p_anim.cant_frames - 1;
}
}
for (int i = 0; i < cant_bones; ++i)
{
smd_bone_anim p_bone_anim1 = p_anim.frames[frame1].bone_animations[i];
smd_bone_anim p_bone_anim2 = p_anim.frames[frame2].bone_animations[i];
Vector3 Position = i == 0 && p_anim.in_site ?
p_anim.frames[0].bone_animations[0].Position :
p_bone_anim1.Position * (1 - resto) + p_bone_anim2.Position * resto;
Quaternion q1 = toQuaternion(p_bone_anim1.Rotation);
Quaternion q2 = toQuaternion(p_bone_anim2.Rotation);
Quaternion q = Quaternion.Lerp(q1, q2, resto);
Matrix T = traslation(Position) * toMatrix(q);
int k = bones[i].parent;
if (k != -1)
{
T = bones[k].Transform * T;
}
bones[i].Transform = T;
bones[i].Position = transform(Vector3.Zero, T);
}
}
public void setAnimation(int n)
{
if (n >= 0 && n < cant_animations)
{
cur_anim = n;
smd_animation p_anim = anim[cur_anim];
if (p_anim == null)
{
return;
}
updateSkeleton();
}
}
public void Draw(GraphicsDevice graphicsDevice, Effect Effect, Matrix World, Matrix View, Matrix Proj, int L = 0)
{
graphicsDevice.SetVertexBuffer(VertexBuffer);
Effect.Parameters["World"].SetValue(World);
Effect.Parameters["View"].SetValue(View);
Effect.Parameters["Projection"].SetValue(Proj);
smd_animation p_anim = anim[cur_anim];
if (p_anim != null)
{
// modelo animado
updateMeshVertices();
Effect.Parameters["bonesMatWorldArray"].SetValue(matBoneSpace);
}
var AlphaTestReference = Effect.Parameters["AlphaTestReference"];
// L ==0 opacos , ==1 traslucidos
for (var i = 0; i < cant_subsets; i++)
{
var cant_items = subset[i].cant_items;
if (cant_items > 0 && subset[i].traslucido == (L == 1))
{
var pos = subset[i].pos;
if (texture[i] != null)
{
Effect.Parameters["ModelTexture"].SetValue(texture[i]);
}
if (AlphaTestReference != null)
{
AlphaTestReference.SetValue(subset[i].alphaTestReference);
}
foreach (var pass in Effect.CurrentTechnique.Passes)
{
pass.Apply();
graphicsDevice.DrawPrimitives(PrimitiveType.TriangleList, pos, cant_items);
}
}
}
/*
* Vector3 s = new Vector3(1, 1, 1) * 0.1f;
* if (debugEffect != null)
* for (int i = 0; i < cant_bones; ++i)
* {
* var p0 = Vector3.Transform(bones[i].Position, invMetric);
* debug_box.Draw(device, p0 - s, p0 + s, debugEffect, World, View, Proj);
* int k = bones[i].parent;
* if (k != -1)
* {
* var p1 = Vector3.Transform(bones[k].Position, invMetric);
* CDebugLine.Draw(graphicsDevice, p0, p1, debugEffect, World, View, Proj);
* }
* }
*/
/*
* if (debugEffect != null)
* {
* Vector3 s = new Vector3(1, 1, 1) * 20;
* int cant_hit_points = 2;
* int[] hit_pt = { 0, 12 };
* for (int i = 0; i < cant_hit_points; ++i)
* {
* var p0 = Vector3.Transform(bones[hit_pt[i]].Position, invMetric);
* debug_box.Draw(device, p0 - s, p0 + s, debugEffect, World, View, Proj);
* }
* }*/
}
public void cargar_ani(String ani_folder, String ani_name)
{
smd_animation p_anim = anim[cur_anim = cant_animations++] = new smd_animation();
p_anim.name = ani_name;
p_anim.cant_frames = 0;
var fp = new System.IO.StreamReader(folder + ani_folder + "\\" + ani_name + ".smd");
fp.ReadLine().TrimStart(); // version 1
fp.ReadLine().TrimStart(); // nodes
var buffer = fp.ReadLine().TrimStart();
while (!buffer.StartsWith("skeleton"))
{
buffer = fp.ReadLine().TrimStart();
}
fp.ReadLine().TrimStart(); // time 0
smd_frame frame = p_anim.frames[p_anim.cant_frames++] = new smd_frame();
buffer = fp.ReadLine().TrimStart(); // primer item
while (!buffer.StartsWith("end"))
{
string[] tokens = buffer.Split(' ');
int id = int.Parse(tokens[0]);
if (id >= 0 && id < cant_bones)
{
smd_bone_anim bone_anim = frame.bone_animations[id] = new smd_bone_anim();
bone_anim.Position.X = atof(tokens[1]);
bone_anim.Position.Y = atof(tokens[2]);
bone_anim.Position.Z = atof(tokens[3]);
bone_anim.Rotation.X = atof(tokens[4]);
bone_anim.Rotation.Y = atof(tokens[5]);
bone_anim.Rotation.Z = atof(tokens[6]);
}
buffer = fp.ReadLine().TrimStart();
if (buffer.StartsWith("time"))
{
// creo el nuevo frame
frame = p_anim.frames[p_anim.cant_frames++] = new smd_frame();
buffer = fp.ReadLine().TrimStart();
}
}
// completo los frames que faltan (si fue creado con el crawbar no faltara ninguno)
// para ello hereda los frame anterior
// de paso computo la distancia total para aprximar la velocidad
float dm = 0;
for (var f = 0; f < p_anim.cant_frames; ++f)
{
for (var i = 0; i < cant_bones; ++i)
{
if (p_anim.frames[f].bone_animations[i] == null)
{
smd_bone_anim bone_anim = p_anim.frames[f].bone_animations[i] = new smd_bone_anim();
if (f > 0)
{
// heredo del anterior
bone_anim.Position = p_anim.frames[f - 1].bone_animations[i].Position;
bone_anim.Rotation = p_anim.frames[f - 1].bone_animations[i].Rotation;
}
else
{
// cero x defecto
bone_anim.Position = Vector3.Zero;
bone_anim.Rotation = Vector3.Zero;
}
}
}
float dist = (p_anim.frames[0].bone_animations[0].Position - p_anim.frames[f].bone_animations[0].Position).Length();
if (dist > dm)
{
dm = dist;
}
}
float time = p_anim.cant_frames / p_anim.frameRate;
speed = dm / time;
fp.Close();
}