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# Copyright 2022-2023 Frederico de Oliveira Linhares
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module CandyGear::Animation
class Discrete
Step = Struct.new(:duration, :obj);
def initialize(steps, looping=true)
@steps = steps.map { Step.new(_1[0], _1[1]); };
@looping = looping;
self.reset();
end
def tick()
step = @steps[@index];
return step.obj if @sequence_over;
@current_time += 1;
if @current_time >= step.duration then
@current_time = 0;
@index += 1;
if @index >= @steps.size then
if @looping then
@index = 0; # It is looping, go back to first step.
else
@index -= 1;
@sequence_over = true;
end
end
end
return step.obj;
end
def obj() = @steps[@index].obj;
def reset()
@index = 0;
@current_time = 0;
@sequence_over = false;
end
end
end
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