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deeppoke.go
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deeppoke.go
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// This file is part of Gopher2600.
//
// Gopher2600 is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Gopher2600 is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
package rewind
import "fmt"
type PokeHook func(res *State) error
// RunPoke will the run the VCS from one state to another state applying
// the supplied PokeHook to the from State
func (r *Rewind) RunPoke(from *State, to *State, poke PokeHook) error {
fromIdx := r.findFrameIndex(from.TV.GetCoords().Frame).nearestIdx
if poke != nil {
err := poke(r.entries[fromIdx])
if err != nil {
return err
}
}
err := r.setSplicePoint(fromIdx, to.TV.GetCoords(), nil)
if err != nil {
return fmt.Errorf("rewind: %w", err)
}
return nil
}