Backgrounds/Effects/Mode7/source/main.c

// Mode 7 example.
 
// Includes
#include <PA9.h>
 
#include "all_gfx.h"
 
int main(){
    PA_Init();
    
    PA_SetVideoMode(0, 2);  //screen, mode
    PA_SetVideoMode(1, 2);  //screen, mode
    
    // Yup, we use the standard bg load function!
    PA_LoadBackground(0, //screen
                      3, // background number
                      &Rot); // background name in PAGfx
    PA_LoadBackground(1, 3, &Rot);
 
    // Wraparound (!)
    PA_SetBgWrap(0, 3, 1);
    PA_SetBgWrap(1, 3, 1);
            
    PA_LoadDefaultText(1, 0);
 
    PA_InitMode7(3);
 
    u16 angle = 0; 
    u16 height = 8192;
 
    while(true){
        // Change the angle
        angle += Pad.Held.Right - Pad.Held.Left;
        angle &= 511;
        PA_Mode7Angle(angle);
        
        // Move left/right
        PA_Mode7MoveLeftRight(Pad.Held.A - Pad.Held.Y);
        
        // Move Forward/backward
        PA_Mode7MoveForwardBack(Pad.Held.Up - Pad.Held.Down);
        
        // Height
        height += (Pad.Held.X - Pad.Held.B)<<7;
        PA_Mode7Height(height);
 
        PA_OutputText(1, 0, 0, "Angle  : %d    ", angle);   
        PA_OutputText(1, 0, 1, "Height : %d    ", height);  
        
        PA_WaitForVBL();
    }
}