# All Steps 1. Model 2. Draw handler 3. Tick handler 4. Key handler? 5. Mouse handler? --- # 1. Decide model * What will the computer remember in order to draw a scene? - the moving parts - image or number (usually) * Write down type of model: image, number, string. * Make an example (used in later testing). --- # 2. Draw handler * How will you draw the model on the screen? - non-moving parts go here - place image in appropriate spots * Write and test this function! --- # 3. Tick handler * How will the model change from second to second? - in comes old model - out goes new model * Write function and test a single step first!