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gfx.cpp
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gfx.cpp
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#include "gfx.hpp"
#include "game.hpp"
#include "tonccpy.h"
#include <array>
#include <nds.h>
#include <stdio.h>
static bool fadedOut = true;
static int popupTimeout = -1;
static void vblankHandler() {
if(popupTimeout == 0)
Gfx::hidePopup();
if(popupTimeout >= 0)
popupTimeout--;
}
void Gfx::init() {
videoSetMode(MODE_5_2D);
videoSetModeSub(MODE_5_2D);
vramSetBankA(VRAM_A_MAIN_BG);
vramSetBankB(VRAM_B_MAIN_SPRITE);
vramSetBankC(VRAM_C_SUB_BG);
vramSetBankD(VRAM_D_SUB_SPRITE);
bgInit(0, BgType_Text8bpp, BgSize_T_256x256, 0, 1);
bgSetPriority(BG(0), 3);
// https://mtheall.com/vram.html#T0=1&NT0=512&MB0=30&TB0=0&S0=0&T1=2&NT1=64&MB1=31&TB1=4&S1=0&T2=5&MB2=5&S2=1
bgInitSub(0, BgType_Text8bpp, BgSize_T_256x256, 30, 0);
bgSetPriority(BG_SUB(0), 3);
bgInitSub(1, BgType_Text4bpp, BgSize_T_256x256, 31, 4);
bgSetPriority(BG_SUB(1), 2);
bgHide(BG_SUB(1));
bgInitSub(2, BgType_Bmp8, BgSize_B8_256x256, 5, 0);
bgSetPriority(BG_SUB(2), 0);
bgUpdate();
oamInit(&oamMain, SpriteMapping_Bmp_1D_128, false);
oamInit(&oamSub, SpriteMapping_Bmp_1D_128, false);
irqSet(IRQ_VBLANK, vblankHandler);
}
void Gfx::showPopup(std::string_view msg, int timeout) {
if(game) {
Font::clear(false);
game->data().mainFont().palette(TEXT_WHITE).print(0, 56 - game->data().mainFont().calcHeight(msg) / 2, false, msg, Alignment::center);
Font::update(false);
}
bgShow(BG_SUB(1));
bgUpdate();
popupTimeout = timeout;
}
void Gfx::hidePopup() {
bgHide(BG_SUB(1));
Font::clear(false);
Font::update(false);
popupTimeout = -1;
}
bool Gfx::popupVisible() {
return popupTimeout != -1;
}
void Gfx::flipSprites(Sprite *letterSprites, int count, std::vector<TilePalette> newPalettes, FlipOptions option) {
for(int i = 0; i < count + 1; i++) {
Sprite *sprite = i >= count ? nullptr : (letterSprites + i);
Sprite *prevSprite = i <= 0 ? nullptr : (letterSprites + i - 1);
if(option == FlipOptions::show && prevSprite)
prevSprite->affineIndex(-1, false).visible(true);
if(sprite && sprite->visible())
sprite->affineIndex(0, false);
if(prevSprite && prevSprite->visible())
prevSprite->affineIndex(1, false);
for(int j = 0; j < 15; j++) {
if(sprite && sprite->visible())
sprite->affineTransform(1.0f, 0.0f, 0.0f, 1.0f - (j * (1.0f / 15.0f)) + 0.0001f).update();
if(prevSprite && prevSprite->visible())
prevSprite->affineTransform(1.0f, 0.0f, 0.0f, 1.0f - ((15 - j) * (1.0f / 15.0f)) + 0.0001f).update();
swiWaitForVBlank();
}
if(sprite && i < (int)newPalettes.size())
sprite->palette(newPalettes[i]);
if(prevSprite && prevSprite->visible())
prevSprite->affineIndex(-1, false).update();
if(option == FlipOptions::hide && sprite)
sprite->affineIndex(-1, false).visible(false).update();
}
}
void Gfx::fadeIn(int frames, int screen) {
if(!fadedOut)
return;
else
fadedOut = false;
for(int i = 0; i < frames; i++) {
setBrightness(screen, 16 - (i * 16 / frames));
swiWaitForVBlank();
}
setBrightness(screen, 0); // Ensure fully faded in
}
void Gfx::fadeOut(int frames, int screen) {
if(fadedOut)
return;
else
fadedOut = true;
for(int i = 0; i < frames; i++) {
setBrightness(screen, (i * 16 / frames));
swiWaitForVBlank();
}
setBrightness(screen, 16); // Ensure fully faded out
// Hide the popup if it was shown
hidePopup();
}