const Matrix4 Matrix4::operator*(const Matrix4& rhs) const {
Matrix4 t;
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++) {
vec3_t col = rhs.getCol(j);
t.m[i][j] = (float) (getRow(i).dot(col) + m[3][i] * rhs.m[j][3]);
}
return t;
}
static void OnMouseTracking(int x, int y, bool button_pressed){
static int mousex = x, mousey = y;
static int bmx = x, bmy = y;
float dx = x-mousex, dy = y-mousey;
float sx = x-bmx, sy = y-bmy;
if(button_pressed){
switch(g_CurrentMode){
case MENUID_FREE_OBJECT_ROT:
g_WorldMatrix =
Matrix4::rotate(dx*0.001f, Vector4(0.0f, 1.0f, 0.0f)) *
Matrix4::rotate(dy*0.001f, Vector4(1.0f, 0.0f, 0.0f)) *
g_WorldMatrix;
break;
case MENUID_FREE_CAMERA_WALK:
g_ViewMatrix =
Matrix4::rotate(dx*0.001f, Vector4(0.0f, 1.0f, 0.0f)) *
Matrix4::rotate(dy*0.001f, Vector4(1.0f, 0.0f, 0.0f)) *
g_ViewMatrix;
break;
case MENUID_OBJECT_AXISALIGNED:
switch(g_CurrentAxisMode){
case HK_ROTATION_X_AXIS:
g_TempMatrix = Matrix4::rotate(sx*0.001f, Vector4(1.0f, 0.0f, 0.0f));
break;
case HK_ROTATION_Y_AXIS:
g_TempMatrix = Matrix4::rotate(sx*0.001f, Vector4(0.0f, 1.0f, 0.0f));
break;
case HK_ROTATION_Z_AXIS:
g_TempMatrix = Matrix4::rotate(sx*0.001f, Vector4(0.0f, 0.0f, 1.0f));
break;
case HK_TRANSLATION_X_AXIS:
g_TempMatrix = Matrix4::translate(Vector4(sx, 0.0f, 0.0f));
break;
case HK_TRANSLATION_Y_AXIS:
g_TempMatrix = Matrix4::translate(Vector4(0.0f, sx, 0.0f));
break;
case HK_TRANSLATION_Z_AXIS:
g_TempMatrix = Matrix4::translate(Vector4(0.0f, 0.0f, sx));
break;
case HK_SCALE_X_AXIS:
g_TempMatrix = Matrix4::scale(Vector4(1.0f+sx * 0.01f, 1.0f, 1.0f));
break;
case HK_SCALE_Y_AXIS:
g_TempMatrix = Matrix4::scale(Vector4(1.0f, 1.0f+sx * 0.01f, 1.0f));
break;
case HK_SCALE_Z_AXIS:
g_TempMatrix = Matrix4::scale(Vector4(1.0f, 1.0f, 1.0f+sx * 0.01f));
break;
case HK_SHEAR_X_AXIS:
g_TempMatrix = Matrix4(Vector4(1.0f, sx * 0.01f, -sy * 0.01f, 0.0f),
Vector4(0.0f, 1.0f, 0.0f, 0.0f),
Vector4(0.0f, 0.0f, 1.0f, 0.0f),
Vector4(0.0f, 0.0f, 0.0f, 1.0f));
break;
case HK_SHEAR_Y_AXIS:
g_TempMatrix = Matrix4(Vector4(1.0f, 0.0f, 0.0f, 0.0f),
Vector4(sx * 0.01f, 1.0f, -sy * 0.01f, 0.0f),
Vector4(0.0f, 0.0f, 1.0f, 0.0f),
Vector4(0.0f, 0.0f, 0.0f, 1.0f));
break;
case HK_SHEAR_Z_AXIS:
g_TempMatrix = Matrix4(Vector4(1.0f, 0.0f, 0.0f, 0.0f),
Vector4(0.0f, 1.0f, 0.0f, 0.0f),
Vector4(sx * 0.01f, -sy * 0.01f, 1.0f, 0.0f),
Vector4(0.0f, 0.0f, 0.0f, 1.0f));
break;
}
break;
case MENUID_CAMERA_ROT_ARDOBJ_ALIGNED:
{
Matrix4 world;
if(g_AxisAlignedTransform_InvMatrixMultOrder)
world = g_WorldMatrix * g_TempMatrix;
else
world = g_TempMatrix * g_WorldMatrix;
Vector4 object_center = world.getCol(3);
Matrix4 transform = Matrix4::identity();
switch(g_CurrentAxisMode){
case HK_ROTATION_X_AXIS:
transform = Matrix4::rotate(dx*0.001f, Vector4(1.0f, 0.0f, 0.0f));
break;
case HK_ROTATION_Y_AXIS:
transform = Matrix4::rotate(dx*0.001f, Vector4(0.0f, 1.0f, 0.0f));
break;
case HK_ROTATION_Z_AXIS:
transform = Matrix4::rotate(dx*0.001f, Vector4(0.0f, 0.0f, 1.0f));
break;
case HK_TRANSLATION_X_AXIS:
g_ViewMatrix = g_ViewMatrix * Matrix4::translate(Vector4(dx, 0.0f, 0.0f));
break;
case HK_TRANSLATION_Y_AXIS:
g_ViewMatrix = g_ViewMatrix * Matrix4::translate(Vector4(0.0f, dx, 0.0f));
break;
case HK_TRANSLATION_Z_AXIS:
g_ViewMatrix = g_ViewMatrix * Matrix4::translate(Vector4(0.0f, 0.0f, dx));
break;
}
transform = Matrix4::translate(object_center) * transform * Matrix4::translate(Vector4::negate(object_center));
g_ViewMatrix = g_ViewMatrix * transform;
}
break;
}
}else{
if(g_AxisAlignedTransform_InvMatrixMultOrder)
g_WorldMatrix = g_WorldMatrix * g_TempMatrix;
else
g_WorldMatrix = g_TempMatrix * g_WorldMatrix;
g_TempMatrix = Matrix4::identity();
bmx = x, bmy = y;
}
mousex = x, mousey = y;
}