EightBit/LR35902/inc/ObjectAttribute.h
Adrian Conlon 8d3551e681 Refactor bit set/get routines from processor class to lower level chip class.
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2018-09-29 14:08:44 +01:00

37 lines
898 B
C++

#pragma once
#include <cstdint>
#include <Processor.h>
namespace EightBit {
class Ram;
namespace GameBoy {
class ObjectAttribute final {
public:
ObjectAttribute() = default;
ObjectAttribute(Ram& ram, uint16_t address);
uint8_t positionY() const { return m_positionY; }
uint8_t positionX() const { return m_positionX; }
uint8_t pattern() const { return m_pattern; }
uint8_t flags() const { return m_flags; }
uint8_t priority() const { return flags() & Chip::Bit7; }
bool highPriority() const { return !!priority(); }
bool lowPriority() const { return !priority(); }
bool flipY() const { return !!(flags() & Chip::Bit6); }
bool flipX() const { return !!(flags() & Chip::Bit5); }
int palette() const { return (flags() & Chip::Bit4) >> 3; }
private:
uint8_t m_positionY;
uint8_t m_positionX;
uint8_t m_pattern;
uint8_t m_flags;
};
}
}