NML

/* ********************************************
			Spritesets
**********************************************/


	spriteset (set_dm_outercar_one, "gfx/dmd.png") { tmpl_standard_row(0, 0) }
	spriteset (set_dm_outercar_midcar, "gfx/dmd.png") { tmpl_standard_row(30, 0) }
	spriteset (set_dm_outercar_two, "gfx/dmd.png") { tmpl_standard_row(60, 0) }
	spriteset (set_dm_lead_powercar, "gfx/dmd.png") { tmpl_standard_row(90, 0) }
	spriteset (set_purchase, "gfx/dmd.png") { tmpl_vehicle_single(0,120, 32,12,-3,-6)}




/* ********************************************
			Graphic Setup
**********************************************/



/* Choose between front, middle and back parts */
switch(FEAT_TRAINS, SELF, sw_dm_threecar_graphics, position_in_consist % 3) {
    0:      set_dm_outercar_one;
	2:      set_dm_outercar_two;
    set_dm_outercar_midcar;
}

/* --- Articulated part callback  --- */
switch(FEAT_TRAINS, SELF, sw_dm_articulated_part, extra_callback_info1) {
    1: return set_dm_outercar_midcar;
    2: return set_dm_outercar_two;
    return CB_RESULT_NO_MORE_ARTICULATED_PARTS;
}


/* --- Wagon attach callback  --- */
switch(FEAT_TRAINS, SELF, sw_dm_can_attach_wagon, vehicle_type_id) {
    /* SELF refers to the wagon here, check that it's an dm */
    return CB_RESULT_ATTACH_ALLOW;
}





/* ********************************************
			Repeater Limits
**********************************************/



/* --- Start/stop callback  --- */
switch(FEAT_TRAINS, SELF, sw_ninecar_start_stop, num_vehs_in_consist) {
    /* Vehicles may be coupled to a maximum of 4 units (8 cars) */
    1 .. 9: return CB_RESULT_NO_TEXT;
    return string(STR_MAX_LENGTH_DM);
}

/* ********************************************
			Trains
**********************************************/


/* Define the actual train */
item(FEAT_TRAINS, item_dm_threecar) {
    /* Define properties first, make sure to set all of them */
    property {
        name:                         string(STR_NAME_DM_THREE);
        // not available in toyland:
        climates_available:           bitmask(CLIMATE_TEMPERATE, CLIMATE_ARCTIC, CLIMATE_TROPICAL);
        introduction_date:            date(1938, 6, 1);
        model_life:                   74;
        vehicle_life:                 30;
        reliability_decay:            20;
        refittable_cargo_classes:     bitmask(CC_PASSENGERS);
        non_refittable_cargo_classes: bitmask();
        // refitting is done via cargo classes only, no cargo types need explicit enabling/disabling
        // It's an intercity train, loading is relatively slow:
        loading_speed:                6;
        cost_factor:                  45;
        running_cost_factor:          100; // Changed by callback
        sprite_id:                    SPRITE_ID_NEW_TRAIN;
        speed:                        97 km/h; // actually 140, but there are rounding errors
        misc_flags:                   bitmask(TRAIN_FLAG_MU);
        refit_cost:                   0; //refit costs don't apply to subcargo display
        // callback flags are not set manually
        track_type:                   ELRL; // from rail type table
        ai_special_flag:              AI_FLAG_PASSENGER;
        power:                        400 kW; // Changed by CB
        running_cost_base:            RUNNING_COST_ELECTRIC;
        dual_headed:                  0;
        cargo_capacity:               22; // per part, changed by callback
        weight:                       36 ton; // Total, changed by callback
        ai_engine_rank:               75; // not intended to be used by the ai
        engine_class:                 ENGINE_CLASS_ELECTRIC;
        extra_power_per_wagon:        0 kW;
        // 4/12 of weight on driving wheels, with a default friction coefficient of 0.3:
        tractive_effort_coefficient:  0.3 / 3; // changed by callback
        air_drag_coefficient:         0.07;
        //shorten_vehicle:              SHORTEN_TO_8_8;
        // Overridden by callback to disable for non-powered wagons:
        visual_effect_and_powered:    visual_effect_and_powered(VISUAL_EFFECT_ELECTRIC, 2, DISABLE_WAGON_POWER);
        extra_weight_per_wagon:       0 ton;
        bitmask_vehicle_info:         0;
    }

    /* Define graphics and callbacks
     * Setting all callbacks is not needed, only define what is used */
    graphics {
        default:                      sw_dm_threecar_graphics;
        purchase:                     set_purchase;
        start_stop:                   sw_ninecar_start_stop;
        articulated_part:             sw_dm_articulated_part;
        can_attach_wagon:             sw_dm_can_attach_wagon;

    }
}