Game Boy Advance >> C/C++

Fill Color

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參考資訊：
1. libnds doc

說明：

API
void SetMode(int mode)

Mode：


main.c

#include <stdio.h>
#include <gba_console.h>
#include <gba_input.h>
#include <gba_video.h>

void fill_color(u16 col)
{
    u16 *p = (u16 *)MODE3_FB;

    for(int c=0; c<(240 * 160); c++) {
        *p++ = col;
    }
}

int main(void)
{
    u16 cur_key = 0, pre_key = 0;

    SetMode(MODE_3 | BG2_ON);
    while (1) {
        scanKeys();
        cur_key = keysDown();
        if ((cur_key != 0) && (cur_key != pre_key)) {
            pre_key = cur_key;

            if (cur_key & KEY_UP) {
                fill_color(0x1f);
            }
            else if (cur_key & KEY_DOWN) {
                fill_color(0x3e0);
            }
            else if (cur_key & KEY_LEFT) {
                fill_color(0x7c00);
            }
            else if (cur_key & KEY_UP) {
                fill_color(0x7fff);
            }
            else {
                fill_color(0x0000);
            }
        }
    }
    return 0;
}

完成

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