leocad/common/object.cpp
2012-10-16 00:43:52 +00:00

372 lines
7.2 KiB
C++
Executable file

// Base class for all drawable objects
//
#include "lc_global.h"
#include "lc_math.h"
#include <stdlib.h>
#include <float.h>
#include <math.h>
#include "globals.h"
#include "project.h"
#include "object.h"
#include "lc_file.h"
#include "lc_application.h"
#define LC_KEY_SAVE_VERSION 1 // LeoCAD 0.73
// =============================================================================
// Object class
Object::Object(LC_OBJECT_TYPE nType)
{
// m_nState = 0;
// m_strName[0] = '\0';
m_pAnimationKeys = NULL;
m_pInstructionKeys = NULL;
m_nObjectType = nType;
m_pKeyValues = NULL;
// m_pParent = NULL;
// m_pNext = NULL;
// m_pNextRender = NULL;
}
Object::~Object()
{
delete []m_pKeyValues;
RemoveKeys();
}
bool Object::FileLoad(lcFile& file)
{
lcuint8 version = file.ReadU8();
if (version > LC_KEY_SAVE_VERSION)
return false;
lcuint16 time;
float param[4];
lcuint8 type;
lcuint32 n;
file.ReadU32(&n, 1);
while (n--)
{
file.ReadU16(&time, 1);
file.ReadFloats(param, 4);
file.ReadU8(&type, 1);
ChangeKey(time, false, true, param, type);
}
file.ReadU32(&n, 1);
while (n--)
{
file.ReadU16(&time, 1);
file.ReadFloats(param, 4);
file.ReadU8(&type, 1);
ChangeKey(time, true, true, param, type);
}
return true;
}
void Object::FileSave(lcFile& file) const
{
LC_OBJECT_KEY *node;
lcuint32 n;
file.WriteU8(LC_KEY_SAVE_VERSION);
for (n = 0, node = m_pInstructionKeys; node; node = node->next)
n++;
file.WriteU32(n);
for (node = m_pInstructionKeys; node; node = node->next)
{
file.WriteU16(node->time);
file.WriteFloats(node->param, 4);
file.WriteU8(node->type);
}
for (n = 0, node = m_pAnimationKeys; node; node = node->next)
n++;
file.WriteU32(n);
for (node = m_pAnimationKeys; node; node = node->next)
{
file.WriteU16(node->time);
file.WriteFloats(node->param, 4);
file.WriteU8(node->type);
}
}
// =============================================================================
// Key handling
static LC_OBJECT_KEY* AddNode(LC_OBJECT_KEY *node, unsigned short nTime, unsigned char nType)
{
LC_OBJECT_KEY* newnode = (LC_OBJECT_KEY*)malloc(sizeof(LC_OBJECT_KEY));
if (node)
{
newnode->next = node->next;
node->next = newnode;
}
else
newnode->next = NULL;
newnode->type = nType;
newnode->time = nTime;
newnode->param[0] = newnode->param[1] = newnode->param[2] = newnode->param[3] = 0;
return newnode;
}
void Object::RegisterKeys(float *values[], LC_OBJECT_KEY_INFO* info, int count)
{
int i;
m_pKeyValues = new float* [count];
for (i = 0; i < count; i++)
m_pKeyValues[i] = values[i];
m_pAnimationKeys = AddNode(NULL, 1, 0);
m_pInstructionKeys = AddNode(NULL, 1, 0);
for (i = count-1; i > 0; i--)
{
AddNode(m_pAnimationKeys, 1, i);
AddNode(m_pInstructionKeys, 1, i);
}
m_pKeyInfo = info;
m_nKeyInfoCount = count;
}
void Object::RemoveKeys()
{
LC_OBJECT_KEY *node, *prev;
for (node = m_pInstructionKeys; node;)
{
prev = node;
node = node->next;
free(prev);
}
for (node = m_pAnimationKeys; node;)
{
prev = node;
node = node->next;
free(prev);
}
}
void Object::ChangeKey(unsigned short nTime, bool bAnimation, bool bAddKey, const float *param, unsigned char nKeyType)
{
LC_OBJECT_KEY *node, *poskey = NULL, *newpos = NULL;
if (bAnimation)
node = m_pAnimationKeys;
else
node = m_pInstructionKeys;
while (node)
{
if ((node->time <= nTime) &&
(node->type == nKeyType))
poskey = node;
node = node->next;
}
if (bAddKey)
{
if (poskey)
{
if (poskey->time != nTime)
newpos = AddNode(poskey, nTime, nKeyType);
}
else
newpos = AddNode(poskey, nTime, nKeyType);
}
if (newpos == NULL)
newpos = poskey;
for (int i = 0; i < m_pKeyInfo[nKeyType].size; i++)
newpos->param[i] = param[i];
}
void Object::CalculateKeys(unsigned short nTime, bool bAnimation)
{
// LC_OBJECT_KEY *next[m_nKeyInfoCount], *prev[m_nKeyInfoCount], *node;
LC_OBJECT_KEY *next[32], *prev[32], *node;
int i, empty = m_nKeyInfoCount;
for (i = 0; i < m_nKeyInfoCount; i++)
next[i] = NULL;
if (bAnimation)
node = m_pAnimationKeys;
else
node = m_pInstructionKeys;
// Get the previous and next keys for each variable
while (node && empty)
{
if (node->time <= nTime)
{
prev[node->type] = node;
}
else
{
if (next[node->type] == NULL)
{
next[node->type] = node;
empty--;
}
}
node = node->next;
}
// TODO: USE KEY IN/OUT WEIGHTS
for (i = 0; i < m_nKeyInfoCount; i++)
{
LC_OBJECT_KEY *n = next[i], *p = prev[i];
if (bAnimation && (n != NULL) && (p->time != nTime))
{
float t = (float)(nTime - p->time)/(n->time - p->time);
for (int j = 0; j < m_pKeyInfo[i].size; j++)
m_pKeyValues[i][j] = p->param[j] + (n->param[j] - p->param[j])*t;
}
else
for (int j = 0; j < m_pKeyInfo[i].size; j++)
m_pKeyValues[i][j] = p->param[j];
}
}
void Object::CalculateSingleKey(unsigned short nTime, bool bAnimation, int keytype, float *value) const
{
LC_OBJECT_KEY *next = NULL, *prev = NULL, *node;
if (bAnimation)
node = m_pAnimationKeys;
else
node = m_pInstructionKeys;
while (node)
{
if (node->type == keytype)
{
if (node->time <= nTime)
prev = node;
else
{
if (next == NULL)
{
next = node;
break;
}
}
}
node = node->next;
}
// TODO: USE KEY IN/OUT WEIGHTS
if (bAnimation && (next != NULL) && (prev->time != nTime))
{
float t = (float)(nTime - prev->time)/(next->time - prev->time);
for (int j = 0; j < m_pKeyInfo[keytype].size; j++)
value[j] = prev->param[j] + (next->param[j] - prev->param[j])*t;
}
else
for (int j = 0; j < m_pKeyInfo[keytype].size; j++)
value[j] = prev->param[j];
}
void Object::InsertTime(unsigned short start, bool animation, unsigned short time)
{
LC_OBJECT_KEY *node, *prev = NULL;
unsigned short last;
bool end[32];
int i;
for (i = 0; i < m_nKeyInfoCount; i++)
end[i] = false;
if (animation)
{
node = m_pAnimationKeys;
last = lcGetActiveProject()->GetTotalFrames();
}
else
{
node = m_pInstructionKeys;
last = 255;
}
for (; node != NULL; prev = node, node = node->next)
{
// skip everything before the start time
if ((node->time < start) || (node->time == 1))
continue;
// there's already a key at the end, delete this one
if (end[node->type])
{
prev->next = node->next;
free(node);
node = prev;
continue;
}
node->time += time;
if (node->time >= last)
{
node->time = last;
end[node->type] = true;
}
}
}
void Object::RemoveTime(unsigned short start, bool animation, unsigned short time)
{
LC_OBJECT_KEY *node, *prev = NULL;
if (animation)
node = m_pAnimationKeys;
else
node = m_pInstructionKeys;
for (; node != NULL; prev = node, node = node->next)
{
// skip everything before the start time
if ((node->time < start) || (node->time == 1))
continue;
if (node->time < (start + time))
{
// delete this key
prev->next = node->next;
free(node);
node = prev;
continue;
}
node->time -= time;
if (node->time < 1)
node->time = 1;
}
}