Additional variable coercions

After the start_color and end_color coercions, the remaining coercions we must perform should feel familiar. We coerce the values in burst_time, burst_particles, emit_time, and animation_frames into Number variables. We coerce the checked values from loop and align_rotation into Boolean variables.

Here is the remainder of the coercion code:

var burst_time = Number(document.getElementById
                 ("burst_time").value);
var burst_particles = Number(document.getElementById
                      ("burst_particles").value);
var loop = Boolean(document.getElementById
           ("loop").checked);
var align_rotation = Boolean(document.getElementById
                     ("align_rotation").checked);
var emit_time = Number(document.getElementById
                ("emit_time").value);
var animation_frames = Number(document.getElementById
                       ("animation_frames").value);

Finally, we need to add the variable types and the new variables into our Module.ccall call to update_emitter in our WebAssembly module:

Module.ccall('update_emitter', 'undefined', ["number", "number",                                       "number", "number", "number", "bool",
                                  "number", "number", "number",                                           "number", "number","number",
                                            /* new parameters */
                                             "number", "number",
                                             "number", "number",
                                             "number", "number",
                                             "number", "number",
                                             "bool", "bool", "number"],
                                            [max_particles, min_angle, 
                                             max_angle,
                                             particle_lifetime,         
                                             acceleration, alpha_fade,
                                             min_starting_velocity, 
                                             max_starting_velocity,
                                             emission_rate, x_pos, 
                                             y_pos, radius,
                                            /* new parameters */
                                             min_start_scale,   
                                             max_start_scale,
                                             min_end_scale, 
                                             max_end_scale,
                                             start_color, end_color,
                                             burst_time, 
                                             burst_particles,
                                             loop, align_rotation, 
                                             emit_time,
                                             animation_frames
                                         ]);