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37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
#pragma once
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#include <cstdint>
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#include <Chip.h>
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namespace EightBit {
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class Ram;
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namespace GameBoy {
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class ObjectAttribute final {
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public:
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ObjectAttribute() = default;
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ObjectAttribute(Ram& ram, uint16_t address);
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[[nodiscard]] auto positionY() const noexcept { return m_positionY; }
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[[nodiscard]] auto positionX() const noexcept { return m_positionX; }
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[[nodiscard]] auto pattern() const noexcept { return m_pattern; }
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[[nodiscard]] auto flags() const noexcept { return m_flags; }
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[[nodiscard]] auto priority() const noexcept { return flags() & Chip::Bit7; }
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[[nodiscard]] auto highPriority() const noexcept { return !!priority(); }
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[[nodiscard]] auto lowPriority() const noexcept { return !priority(); }
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[[nodiscard]] auto flipY() const noexcept { return !!(flags() & Chip::Bit6); }
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[[nodiscard]] auto flipX() const noexcept { return !!(flags() & Chip::Bit5); }
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[[nodiscard]] auto palette() const noexcept { return (flags() & Chip::Bit4) >> 4; }
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private:
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uint8_t m_positionY;
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uint8_t m_positionX;
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uint8_t m_pattern;
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uint8_t m_flags;
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};
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}
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} |