78 lines
1.6 KiB
C++
78 lines
1.6 KiB
C++
#define LGFX_USE_V1
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#include <LovyanGFX.hpp>
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static LGFX lcd;
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static LGFX_Sprite sprite(&lcd);
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struct meter_t
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{
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int32_t pivot_x;
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int32_t pivot_y;
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float angle = 0;
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float add = 0;
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void advance(void)
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{
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if ((angle >= 256 && add > 0.0)
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|| (angle <= 0 && add < 0.0))
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{
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add = -add;
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}
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angle += add;
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}
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void drawGauge(uint32_t color)
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{
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lcd.setPivot(pivot_x, pivot_y);
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sprite.setPaletteColor(1, color);
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sprite.pushRotated(angle - 127);
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advance();
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}
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};
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struct meter_t meter1, meter2, meter3;
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void setup(void)
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{
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lcd.init();
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if (lcd.width() < lcd.height()) {
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lcd.setRotation(lcd.getRotation() ^ 1);
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}
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sprite.setColorDepth(2);
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sprite.createSprite(3,lcd.height() / 8);
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sprite.setPivot(1, lcd.height() / 4);
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sprite.drawFastVLine(1, 0, sprite.height() , 3);
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sprite.drawFastVLine(0, 2, sprite.height() - 4, 1);
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meter1.pivot_x = lcd.width() >> 1;
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meter1.pivot_y = (lcd.height() >> 2) + 2;
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meter1.add = 0.01;
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meter2.pivot_x = lcd.width() >> 2;
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meter2.pivot_y = (lcd.height() * 3) >>2;
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meter2.add = 0.11;
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meter3.pivot_x = (lcd.width() * 3) >> 2;
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meter3.pivot_y = (lcd.height() * 3) >> 2;
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meter3.add = 0.57;
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lcd.fillScreen(lcd.color565(0,0,127));
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for (int i = 0; i < 20; i++) {
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lcd.drawFastHLine(0, (i*2+1) * lcd.height() / 40, lcd.width(), 0xFFFF);
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lcd.drawFastVLine((i*2+1) * lcd.width() / 40, 0, lcd.height() , 0xFFFF);
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}
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}
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void loop(void)
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{
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meter1.drawGauge(sprite.color888(255, meter1.angle, 127));
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meter2.drawGauge(sprite.color888(255 - meter2.angle, meter2.angle, 127));
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meter3.drawGauge(sprite.color888(0, 127, meter3.angle));
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}
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