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Diffstat (limited to 'src/scene.mm')
| -rw-r--r-- | src/scene.mm | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/src/scene.mm b/src/scene.mm deleted file mode 100644 index f858185..0000000 --- a/src/scene.mm +++ /dev/null @@ -1,179 +0,0 @@ -#import "scene.hh" -#import "nes/nes.hh" -#import "nes/display.hh" -#import "nes/util/rgb.hh" -#import <memory> -#import <optional> - -namespace -{ - class display_impl : public nes::display - { - SKSpriteNode* node_; - NSMutableData* buffer_front_; - NSMutableData* buffer_back_; - std::uint8_t* bytes_back_; - - public: - explicit display_impl(SKSpriteNode* node) - : node_{ node } - , buffer_front_{ make_buffer() } - , buffer_back_{ make_buffer() } - , bytes_back_{ static_cast<std::uint8_t*>([buffer_back_ mutableBytes]) } - { - } - - ~display_impl() = default; - - virtual auto switch_buffers() -> void override - { - auto tmp = buffer_back_; - buffer_back_ = buffer_front_; - buffer_front_ = tmp; - bytes_back_ = static_cast<std::uint8_t*>([buffer_back_ mutableBytes]); - } - - auto actually_switch_buffers() -> void - { - auto texture = [SKTexture textureWithData:buffer_front_ size:CGSizeMake(width, height) flipped:YES]; - [texture setFilteringMode:SKTextureFilteringNearest]; - [node_ setTexture:texture]; - } - - virtual auto set(unsigned x, unsigned y, nes::rgb value) -> void override - { - auto const offset = (y * width + x) * 4; - bytes_back_[offset + 0] = value.r; - bytes_back_[offset + 1] = value.g; - bytes_back_[offset + 2] = value.b; - bytes_back_[offset + 3] = 255; - } - - virtual auto get(unsigned x, unsigned y) const -> nes::rgb override - { - auto const offset = (y * width + x) * 4; - auto res = nes::rgb{}; - res.r = bytes_back_[offset + 0]; - res.g = bytes_back_[offset + 1]; - res.b = bytes_back_[offset + 2]; - return res; - } - - private: - static auto make_buffer() -> NSMutableData* - { - auto const length = NSUInteger{ width * height * 4 }; - return [NSMutableData dataWithLength:length]; - } - }; -} // namespace - -@implementation Scene -{ - std::unique_ptr<display_impl> display_; - std::unique_ptr<nes::nes> nes_; - std::optional<NSTimeInterval> last_time_; -} - -- (instancetype)initWithFilePath:(NSString*)filePath -{ - self = [super initWithSize:CGSizeMake(nes::display::width, nes::display::height)]; - if (self) - { - auto node = [[SKSpriteNode alloc] init]; - [node setAnchorPoint:CGPointZero]; - [node setSize:[self size]]; - - [self setScaleMode:SKSceneScaleModeAspectFit]; - [self addChild:node]; - - auto cartridge = nes::cartridge::from_file([filePath UTF8String]); - - self->display_ = std::make_unique<display_impl>(node); - self->nes_ = std::make_unique<nes::nes>(std::move(cartridge), *self->display_); - } - return self; -} - -- (void)keyDown:(NSEvent*)event -{ - auto& controller_1 = self->nes_->get_controller_1(); - - switch ([event keyCode]) - { - case 0x7e: // up arrow - controller_1.get_pressed().add(nes::buttons::up); - break; - case 0x7d: // down arrow - controller_1.get_pressed().add(nes::buttons::down); - break; - case 0x7b: // left arrow - controller_1.get_pressed().add(nes::buttons::left); - break; - case 0x7c: // right arrow - controller_1.get_pressed().add(nes::buttons::right); - break; - case 0x6: // "Z" - controller_1.get_pressed().add(nes::buttons::a); - break; - case 0x7: // "X" - controller_1.get_pressed().add(nes::buttons::b); - break; - case 0x24: // return - controller_1.get_pressed().add(nes::buttons::start); - break; - case 0x31: // space - controller_1.get_pressed().add(nes::buttons::select); - break; - default: - [super keyDown:event]; - break; - } -} - -- (void)keyUp:(NSEvent*)event -{ - auto& controller_1 = self->nes_->get_controller_1(); - - switch ([event keyCode]) - { - case 0x7e: // up arrow - controller_1.get_pressed().remove(nes::buttons::up); - break; - case 0x7d: // down arrow - controller_1.get_pressed().remove(nes::buttons::down); - break; - case 0x7b: // left arrow - controller_1.get_pressed().remove(nes::buttons::left); - break; - case 0x7c: // right arrow - controller_1.get_pressed().remove(nes::buttons::right); - break; - case 0x6: // "Z" - controller_1.get_pressed().remove(nes::buttons::a); - break; - case 0x7: // "X" - controller_1.get_pressed().remove(nes::buttons::b); - break; - case 0x24: // return - controller_1.get_pressed().remove(nes::buttons::start); - break; - case 0x31: // space - controller_1.get_pressed().remove(nes::buttons::select); - break; - default: - [super keyUp:event]; - break; - } -} - -- (void)update:(NSTimeInterval)currentTime -{ - auto const last_time = self->last_time_.value_or(currentTime); - last_time_ = currentTime; - auto const delta_us = static_cast<std::uint64_t>((currentTime - last_time) * 1000. * 1000.); - self->nes_->step(std::chrono::microseconds{ delta_us }); - self->display_->actually_switch_buffers(); -} - -@end
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