Language: C++
Compiler/IDE: MSV C++ 2008
Using: SDL, SDL_TTF, SDL_Mixer, SDL_Image
I am trying to use Model, Behavior, Movement:
Model - Will handle Loading, Clipping, Animating of the Object
Behavior - Will handle AI
Movement - Will handle pathfinding, collision detection, positioning
I am having a hard time figuring out how to set up the GObjects.
Here is the class:
#pragma once
#include <iostream>
#include "GOBase.h"
#include "Model.h"
#include "Behavior.h"
#include "Movement.h"
class GObject
{
public:
Model* mModel;
Behavior* mBehavior;
Movement* mMovement;
GObject(Model* model, Behavior* behavior, Movement* movement);
void Init(void); //Handles Model
void Update(void); //Handles Behavior
void Render(void); //Handles Movement
void MousePressed(const int &B, const int &x, const int &y, const int &xRel, const int &yRel);
void MouseReleased(const int &B, const int &x, const int &y, const int &xRel, const int &yRel);
void MouseMove(const int &x, const int &y, const int &xRel, const int &yRel);
~GObject(void);
};
GObject::GObject(Model* model, Behavior* behavior, Movement* movement)
{
mModel = model;
mBehavior = behavior;
mMovement = movement;
}
void GObject::Init(void)
{
mModel->Init();
mBehavior->Init();
mMovement->Init();
}
void GObject::Update(void)
{
//I D K
}
void GObject::Render(void)
{
//I D K
}
void GObject::MousePressed(const int &B, const int &x, const int &y, const int &xRel, const int &yRel)
{
mModel->ButtonMousePressed(B, x, y, xRel, yRel);
mBehavior->ButtonMousePressed(B, x, y, xRel, yRel);
mMovement->ButtonMousePressed(B, x, y, xRel, yRel);
}
void GObject::MouseReleased(const int &B, const int &x, const int &y, const int &xRel, const int &yRel)
{
mModel->ButtonMouseReleased(B, x, y, xRel, yRel);
mBehavior->ButtonMouseReleased(B, x, y, xRel, yRel);
mMovement->ButtonMouseReleased(B, x, y, xRel, yRel);
}
void GObject::MouseMove(const int &x, const int &y, const int &xRel, const int &yRel)
{
mModel->ButtonMouseMove(x, y, xRel, yRel);
mBehavior->ButtonMouseMove(x, y, xRel, yRel);
mMovement->ButtonMouseMove(x, y, xRel, yRel);
}
GObject::~GObject(void)
{
}
My questions are at the bottom.
NOTE:
Model, Behavior, Movement are blank classes except for the ones called in this post. They will not be shown; I will however show a GOBase class that is inherited by Model, Behavior, Movement. This class shows several functions called in the above source code.
#pragma once
#include <iostream>
#include <SDL.h>
#include <SDL_image.h>
#include <string>
#include <vector>
struct GOButton; //Holds button position data
class GOBase
{
private:
short int OnList;
//button variables:
std::vector<GOButton> ButtonList;
short int lastBNumber;
short int BNumber;
std::string ValueReturned; //value of current clicked button
bool DeleteDead;
public:
bool Initialized;
GOBase(void);
virtual bool Init(void);
virtual void Update(void);
virtual ~GOBase(void);
bool HasButton(void);
void CreateButton(unsigned int x, int unsigned y, unsigned int w, unsigned int h, std::string ReturnValue);
void LoadButtonImage(std::string filename, unsigned short int State);
void LoadButtonColor(unsigned short int State, int r, int g, int b);
void ButtonMousePressed(const int &B, const int &x, const int &y, const int &xRel, const int &yRel);
void ButtonMouseReleased(const int &B, const int &x, const int &y, const int &xRel, const int &yRel);
void ButtonMouseMove(const int &x, const int &y, const int &xRel, const int &yRel);
void RenderButton(void); //called in update function of Model, Behavior, Movement
void CleanButton(void); //check for dead buttons and delete them from the list and memory **Incomplete**
};
struct GOButton
{
bool isPressed;
int x;
int y;
int w;
int h;
SDL_Surface* Image[4]; //0 - Mouse not over, 1 - Mouse Over, 2 - Mouse Pressed, 3 - Selected
short int State; //-1 - Dead, 0 - Mouse not over, 1 - Mouse Over, 2 - Mouse Held, 3 - Selected
std::string ReturnValue;
GOButton(void)
{
State = 0;
isPressed = false;
x = 0;
y = 0;
w = 0;
h = 0;
for(int v = 0; v < 4; v++)
Image[v] = NULL;
}
};
GOBase::GOBase(void)
{
Initialized = false;
lastBNumber = 0;
BNumber = 0;
DeleteDead = false;
OnList = -1;
ValueReturned = "";
}
bool GOBase::Init(void)
{
return true;
}
void GOBase::Update(void)
{
}
void GOBase::Render(void)
{
}
bool GOBase::HasButton(void)
{
return !ButtonList.empty();
}
void GOBase::CreateButton(unsigned int x, int unsigned y, unsigned int w, unsigned int h, std::string ReturnValue)
{
lastBNumber = BNumber;
GOButton temp;
temp.ReturnValue = ReturnValue;
temp.x = x;
temp.y = y;
temp.w = w;
temp.h = h;
ButtonList.push_back(temp);
BNumber++;
}
void GOBase::LoadButtonImage(std::string filename, unsigned short int State)
{
if(!ButtonList.empty())
{
SDL_Surface* temp = IMG_Load(filename.c_str());
if(temp != NULL)
{
ButtonList[lastBNumber].Image[State] = SDL_DisplayFormat(temp);
SDL_FreeSurface(temp);
}
}
}
void GOBase::LoadButtonColor(unsigned short int State, int r, int g, int b)
{
if(HasButton())
{
ButtonList[lastBNumber].Image[State] = SDL_CreateRGBSurface(SDL_GetVideoSurface()->flags, ButtonList[lastBNumber].w, ButtonList[lastBNumber].h, 32, 0, 0, 0, 0);
if(ButtonList[lastBNumber].Image[State] != NULL)
{
SDL_FillRect(ButtonList[lastBNumber].Image[State],
&ButtonList[lastBNumber].Image[State]->clip_rect,
SDL_MapRGB(ButtonList[lastBNumber].Image[State]->format, r, g, b));
}
}
}
void GOBase::ButtonMousePressed(const int &B, const int &x, const int &y, const int &xRel, const int &yRel)
{
if(HasButton())
{
GOButton temp;
if(B == SDL_BUTTON_LEFT)
for(std::vector<GOButton>::iterator ButtonIt = ButtonList.begin(); ButtonIt != ButtonList.end(); ButtonIt++)
{
temp = *ButtonIt;
if(x > temp.x && x < temp.x+temp.w && y > temp.y && y < temp.y+temp.h)
{
ValueReturned = temp.ReturnValue;
ButtonIt->State = 2; //pressed
ButtonIt->isPressed = !ButtonIt->isPressed;
}
}
}
}
void GOBase::ButtonMouseReleased(const int &B, const int &x, const int &y, const int &xRel, const int &yRel)
{
if(HasButton())
{
GOButton temp;
if(B == SDL_BUTTON_LEFT)
for(std::vector<GOButton>::iterator ButtonIt = ButtonList.begin(); ButtonIt != ButtonList.end(); ButtonIt++)
{
temp = *ButtonIt;
if(x > temp.x && x < temp.x+temp.w && y > temp.y && y < temp.y+temp.h)
{
ValueReturned = "";
if(temp.Image[3] == NULL)
{
ButtonIt->State = 1; //over
ButtonIt->isPressed = !ButtonIt->isPressed;
}
else
{
ButtonIt->State = 3; //selected
}
}
}
}
}
void GOBase::ButtonMouseMove(const int &x, const int &y, const int &xRel, const int &yRel)
{
if(HasButton())
{
GOButton temp;
for(std::vector<GOButton>::iterator ButtonIt = ButtonList.begin(); ButtonIt != ButtonList.end(); ButtonIt++)
{
temp = *ButtonIt;
if(x > temp.x && x < temp.x+temp.w && y > temp.y && y < temp.y+temp.h)
{
if(!temp.isPressed)
{
ValueReturned = "";
ButtonIt->State = 1; //over
ButtonIt->isPressed = false;
}
}
else
{
if(!temp.isPressed)
{
ButtonIt->State = 0; //not over
}
}
}
}
}
void GOBase::RenderButton(void)
{
if(HasButton())
{
SDL_Rect offset;
GOButton temp;
for(std::vector<GOButton>::iterator ButtonIt = ButtonList.begin(); ButtonIt != ButtonList.end(); ButtonIt++)
{
temp = *ButtonIt;
offset.x = temp.x;
offset.y = temp.y;
SDL_BlitSurface(temp.Image[temp.State], &temp.Image[temp.State]->clip_rect, SDL_GetVideoSurface(), &offset);
}
}
}
GOBase::~GOBase(void)
{
}
First Off:
I created GOBase so that I can create Object specific buttons and receive the state of the button from it.
If you looked through the GObject class, you might of noticed //I D K in the Update and Render function. I don't know what to put here. I know I'm going to have to call the Update function of Model, Behavior, Movement somewhere. That is a given.
How would I update what animation Model should show and what direction Movement should travail? I'm guessing Behavior is going to be used to decide these.
I want to use Render to show the images. How would I get which image and text to show and where I should show them?
What should I add to GOBase functionality?
Thank you.
NOTE:
Model, Behavior, Movement are blank classes except for the ones called in this post. Today is the day I create the structure of the classes. I will not set this in stone so if you wish to recommend something I am open to new ideas. I will have more questions after I get the updating of Model, Behavior, Movement planned out and working properly.
[Edited by - rpg gamer 17 on October 30, 2009 4:20:46 PM]
-----------------------------I heard the voice of the fourth beast say, Come and see.And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And power was given unto them over the fourth part of the earth, to kill with sword, and with hunger, and with death, and with the beasts of the earth.Revelation 6:7-8 (King James Version)
