c++ - 使用 sprite 和 setObject 在 C++ 上进行碰撞检测

Question

我正在尝试创建一个非常基本的无尽跑步游戏玩家，但我被碰撞检测困住了。我正在使用 notepad++ 为 GBA 模拟器编程。下面的代码是我的主要游戏 while 循环。精灵是 4x4 瓦片，每个瓦片是 8x8 像素。主循环下方是重力作用于精灵的代码。'setObject(0,...) 是角色精灵 setObject(1,...) 是平台精灵。感谢您提前提供任何帮助。

while (true)
{
    const uint8_t currentKeys = REG_KEYINPUT; 

    if (frame % 4 == 0) //change player sprite every 4 frame
    {

        if (run != 14)      //when last sprite is reached reset to original values
        {
            run = run + 2; //change run to next sprite
        }
        else
        {
            run = 0;            
            frame = 0;
            score ++; //adding one to score variable everytime loop is entered      
        }
    }

    SetObject(0,
        ATTR0_SHAPE(2) | ATTR0_8BPP | ATTR0_REG | ATTR0_Y(80),  //calling from spritesheet Stickmen 
        ATTR1_SIZE(2) | ATTR1_X(108),
        ATTR2_ID8(run));                                        //calling sprite 

    SetObject(1,
        ATTR0_SHAPE(2) | ATTR0_8BPP | ATTR0_REG | ATTR0_Y(112),
        ATTR1_SIZE(2) | ATTR1_X(108),
        ATTR2_ID8(100));

    if (currentKeys != prevKeys)  
    {
        if ((currentKeys & KEY_UP) == 0)
        {
            jumpY = -6.0f;
        }
    }

    frame += 1;
    prevKeys = currentKeys;
    //DrawScore();
    Physics();
    WaitVSync();
    UpdateObjects();
}
return 0;
}

void Physics()
{
    playerY = playerY + jumpY; // setting player to PlayersY + the jumpY value attained by user
    jumpY = jumpY + gravity; // because jump is negative, adding gravity cause it to fall down the screen
    SetObjectY(0, playerY);     
}