From fa403b904c8596d8d1731d7f8bfafa6c0145e3dd Mon Sep 17 00:00:00 2001 From: Genny Date: Wed, 10 Mar 2021 02:44:45 -0600 Subject: Implement, roughly, extensions, animation, and looping --- src/block/extension/graphiccontrol.rs | 59 +++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 src/block/extension/graphiccontrol.rs (limited to 'src/block/extension/graphiccontrol.rs') diff --git a/src/block/extension/graphiccontrol.rs b/src/block/extension/graphiccontrol.rs new file mode 100644 index 0000000..46f44fa --- /dev/null +++ b/src/block/extension/graphiccontrol.rs @@ -0,0 +1,59 @@ +pub struct GraphicControl { + pub(crate) packed: u8, + pub(crate) delay_time: u16, + pub(crate) transparency_index: u8 +} + +impl GraphicControl { + pub fn new(disposal_method: DisposalMethod, user_input_flag: bool, transparency_flag: bool, delay_time: u16, transparency_index: u8) -> Self { + let mut ret = Self { + packed: 0, + delay_time, + transparency_index + }; + + ret.disposal_method(disposal_method); + ret.user_input(user_input_flag); + ret.transparency(transparency_flag); + + ret + } + + pub fn disposal_method(&mut self, method: DisposalMethod) { + match method { + DisposalMethod::Clear => self.packed &= 0b111_000_1_1, + DisposalMethod::DoNotDispose => self.packed |= 0b000_100_0_0, + DisposalMethod::RestoreBackground => self.packed |= 0b000_010_0_0, + DisposalMethod::RestorePrevious => self.packed |= 0b000_110_0_0 + }; + } + + pub fn user_input(&mut self, flag: bool) { + if flag { + self.packed |= 0b000_000_1_0; + } else { + self.packed &= 0b111_111_0_1; + } + } + + pub fn transparency(&mut self, flag: bool) { + if flag { + self.packed |= 0b000_000_0_1; + } else { + self.packed &= 0b111_111_1_0; + } + } + + pub fn delay_time(&mut self, hundreths: u16) { + self.delay_time = hundreths; + } + + //TODO: Transparency index setter +} + +pub enum DisposalMethod { + Clear, + DoNotDispose, + RestoreBackground, + RestorePrevious +} \ No newline at end of file -- cgit 1.4.1-3-g733a5