[WinAPI] 총알 발사

 

 

Bullet.h

#pragma once
class Bullet
{
public:
    ObLine        arrow;
    ObCircle    arrowPet;
 
    float       scalar;
    float       gravity;
 
    Vector2     fireDir; //추가
   
 
public:
    Bullet();
    void Update(ObRect player);
    void Render();
    bool Shoot(ObRect player, float scalar, Vector2 firePos); //Vector2 firePos 추가
};
 
 

Vector2 fireDir;

bool Shoot(ObRect player, float scalar, Vector2 firePos);

 

 

Bullet.cpp

#include "stdafx.h"
 
Bullet::Bullet()
{ ... }
 
void Bullet::Update(ObRect player)
{
    if (!arrow.isVisible) return;
    if (!arrowPet.isVisible) return;
 
    gravity += 600.0f * DELTA;  //추가
 
    Vector2 velocity = fireDir * scalar + DOWN * gravity; //추가
 
    arrow.MoveWorldPos(velocity * DELTA);                 //수정
    arrow.rotation = Utility::DirToRadian(velocity);      //추가
 
    arrowPet.rotation2 += 360.0f * ToRadian * DELTA;
 
    arrow.Update();
    arrowPet.Update();
 
    Vector2 Dis = arrow.GetWorldPos() - player.GetWorldPos();
 
    float dis = Dis.Length();
 
    if (dis > 2000.0f)
    {
        arrow.isVisible = false;
        arrowPet.isVisible = false;
    }
}
 
void Bullet::Render()
{
    arrow.Render();
    arrowPet.Render();
}
 
bool Bullet::Shoot(ObRect player, float scalar, Vector2 firePos)
{
    if (!arrow.isVisible)
    {
        arrow.isVisible = true;
        arrowPet.isVisible = true;
        
        arrow.SetWorldPos(firePos);
        arrow.rotation = Utility::DirToRadian(player.GetRight());            
 
        this->scalar = 150.0f + scalar * 2.0f;
 
        fireDir = player.GetRight(); //추가
 
        gravity = 0.0f; //추가
 
        arrowPet.rotation2 = 0.0f;
 
        return true;
    }
    return false;
}
 

gravity += 600.0f * DELTA;  //중력값 설정

Vector2 velocity = fireDir * scalar + DOWN * gravity; //

arrow.MoveWorldPos(velocity * DELTA); 

 

arrow.rotation = Utility::DirToRadian(velocity);  //arrow가 발사된 후 떨어지면서 바닥을 향해 회전함. 

 

 

Main.h

#pragma once
#define MAX 25
 
class Main : public Scene
{
private:
    ObRect        player;
    ObCircle    pet;
 
    ObRect        playerGauge;
    Bullet        bullet[MAX];
    Vector2        lastPos;
 
    GameObject    firePos; // 추가
 
public:
    virtual void Init() override;
    virtual void Release() override; 
    virtual void Update() override;
    virtual void LateUpdate() override;
    virtual void Render() override;
    virtual void ResizeScreen() override;
};
 

GameObject  firePos;

arrow가 발사되는 위치를 바꿔주기 위해 GameObject firePos;를 생성한다. firePos에 arrow 발사 위치를 설정한다.

 

 

Main.cpp

#include "stdafx.h"
#include "Main.h"
 
void Main::Init()
{
    player.SetWorldPos(Vector2(0.0f, 0.0f));
    player.scale = Vector2(100.0f, 100.0f);
    player.rotation = 0.0f;
    player.isFilled = true;
    player.isAxis = true;
    player.color = Color(0.0f, 0.0f, 1.0f, 1.0f);
    player.pivot = OFFSET_N;
 
    firePos.SetParentRT(player);                //추가
    firePos.SetLocalPos(Vector2(200.0f, 0.0f)); //추가
    firePos.scale = Vector2(100.0f, 100.0f);    //추가
    firePos.isAxis = false;                     //추가, 좌표처럼 보이는 선 안 보이게 꺼줌.  
 
    playerGauge.SetLocalPos(Vector2(-75.0f, 75.0f));
    playerGauge.scale = Vector2(150.0f, 30.0f);
    playerGauge.rotation = 0.0f;
    playerGauge.isFilled = true;
    playerGauge.color = Color(0.5f, 0.5f, 0.0f, 1.0f);
    playerGauge.pivot = OFFSET_L;
 
    playerGauge.SetParentRT(player);
 
    pet.SetLocalPos(Vector2(100.0f, 100.0f));
    pet.scale = Vector2(30.0f, 30.0f);
    pet.rotation = 0.0f;
    pet.isAxis = true;
    pet.isFilled = true;
    pet.SetParentRT(player);
}
 
void Main::Release()
{
}
 
void Main::Update()
{
    cout << "Mouse : " << INPUT->GetMousePos().x << "," << INPUT->GetMousePos().y << endl;
 
    player.color = Color(RANDOM->Float(), RANDOM->Float(0.0f, 1.0f), RANDOM->Float(0.0f, 1.0f), 1.0f);
 
    player.SetWorldPos(lastPos);
 
    if (INPUT->KeyPress(VK_UP))
    {
        player.MoveWorldPos(player.GetUp() * 200.0f * DELTA);
    }
    else if (INPUT->KeyPress(VK_DOWN))
    {
        player.MoveWorldPos(-player.GetUp() * 200.0f * DELTA);
    }
 
    if (INPUT->KeyPress(VK_LEFT))
    {
        player.rotation += 120.0f * ToRadian * DELTA;
    }
    else if (INPUT->KeyPress(VK_RIGHT))
    {
        player.rotation -= 120.0f * ToRadian * DELTA;
    }
    
    if (INPUT->KeyDown(VK_SPACE))
    {
        playerGauge.scale.x = 0.0f;
    }
 
    if (INPUT->KeyPress(VK_SPACE))
    {
        playerGauge.scale.x += 100.0f * DELTA;
 
        if (playerGauge.scale.x > 150.0f)
        {
            playerGauge.scale.x = 0.0f;
        }
    }
 
    if (INPUT->KeyUp(VK_SPACE))
    {
        for (int i = 0; i < MAX; i++)
        {
            if (bullet[i].Shoot(player, playerGauge.scale.x, firePos.GetWorldPos())) //firePos.GetWorldPos() 
            {
                break;
            }
        }
    }
 
    pet.rotation2 += 60.0f * ToRadian * DELTA;
 
    player.Update();
    pet.Update(); 
 
    for (int i = 0; i < MAX; i++)
    {
        bullet[i].Update(player);
    }
    playerGauge.Update();
 
    firePos.Update();
}
 
void Main::Render()
{
    player.Render();
    pet.Render();
    playerGauge.Render();
    for (int i = 0; i < MAX; i++)
    {
        bullet[i].Render();
    }       
}
 
void Main::ResizeScreen()
{
}
 
int WINAPI wWinMain(HINSTANCE instance, HINSTANCE prevInstance, LPWSTR param, int command)
{
    app.SetAppName(L"Game1");
    app.SetInstance(instance);
    app.InitWidthHeight(1400,800.0f);
    Main* main = new Main();
    int wParam = (int)WIN->Run(main);
    WIN->DeleteSingleton();
    SafeDelete(main);
    return wParam;
}

firePos.SetParentRT(player);                       //추가

firePos.SetLocalPos(Vector2(200.0f, 0.0f)); //추가
firePos.scale = Vector2(100.0f, 100.0f);       //추가
firePos.isAxis = false;                                   //추가, 좌표처럼 보이는 선 안 보이게 꺼줌.

 

 

if (INPUT->KeyUp(VK_SPACE))
    {
        for (int i = 0; i < MAX; i++)
        {
            if (bullet[i].Shoot(player, playerGauge.scale.x, firePos.GetWorldPos())) 
            {  break;  }
        }
    }

 

firePos.GetWorldPos() 추가

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Mouse 좌표를 DX좌표로 바꿔준다.