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added Engine::pickOne()

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git-svn-id: svn://anubis/anaglym/trunk@309 99a6e188-d820-4881-8870-2d33a10e2619
This commit is contained in:
Josh Holtrop 2010-09-17 14:27:34 +00:00
parent 89e065ebb5
commit a43935fdd6
2 changed files with 36 additions and 0 deletions
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34
Engine.cc
View File

@ -693,6 +693,40 @@ refptr< vector<Engine::PickedObjectRef> > Engine::pickObjects(int x, int y)
return ret;
}
Engine::PickedObjectRef Engine::pickOne(int x, int y, Engine::Object *obj)
{
dMatrix3 r;
dVector3 right, forward, up;
dVector3 rotated_direction, initial_direction;
up[0] = m_up[0];
up[1] = m_up[1];
up[2] = m_up[2];
forward[0] = m_center[0] - m_eye[0];
forward[1] = m_center[1] - m_eye[1];
forward[2] = m_center[2] - m_eye[2];
cross_product(right, forward, up);
dRFrom2Axes(r, right[0], right[1], right[2],
forward[0], forward[1], forward[2]);
initial_direction[0] = x - m_av.getWidth() / 2;
initial_direction[1] = m_screen_dist;
initial_direction[2] = y - m_av.getHeight() / 2;
dMultiply0(rotated_direction, r, initial_direction, 3, 3, 1);
normalize(rotated_direction);
OdeWorld::PickedObjectRef owpor =
m_world.pickOne(m_eye[0], m_eye[1], m_eye[2],
rotated_direction[0], rotated_direction[1], rotated_direction[2],
obj->getOdeWorldObject());
PickedObjectRef ret;
if (!owpor.isNull())
{
ret = new PickedObject(owpor);
}
return ret;
}
void Engine::debug_hook(lua_Debug * debug)
{
Uint32 ticks = SDL_GetTicks();

2
Engine.h
View File

@ -93,6 +93,7 @@ class Engine
}
void setID(int id) { m_id = id; }
int getID() { return m_id; }
OdeWorld::Object *getOdeWorldObject() { return m_ode_object; }
protected:
void createManagedObject();
@ -216,6 +217,7 @@ class Engine
}
bool getScriptCursorVisible() { return m_script_cursor_visible; }
refptr< std::vector<PickedObjectRef> > pickObjects(int x, int y);
PickedObjectRef pickOne(int x, int y, Object *obj);
void getScreenSize(int * width, int * height);
void drawText(const char * text, GLfloat r, GLfloat g, GLfloat b,