File diff r7214:b82aad925d0b → r7215:b3433b9d5b54
src/articulated_vehicles.cpp
Show inline comments
 
@@ -12,40 +12,40 @@
 
#include "train.h"
 
#include "roadveh.h"
 
#include "newgrf_callbacks.h"
 
#include "newgrf_engine.h"
 

	
 

	
 
uint CountArticulatedParts(EngineID engine_type)
 
{
 
	if (!HASBIT(EngInfo(engine_type)->callbackmask, CBM_ARTIC_ENGINE)) return 0;
 

	
 
	uint i;
 
	for (i = 1; i < 10; i++) {
 
		uint16 callback = GetVehicleCallback(CBID_TRAIN_ARTIC_ENGINE, i, 0, engine_type, NULL);
 
		uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, engine_type, NULL);
 
		if (callback == CALLBACK_FAILED || callback == 0xFF) break;
 
	}
 

	
 
	return i - 1;
 
}
 

	
 
void AddArticulatedParts(Vehicle **vl, VehicleType type)
 
{
 
	const Vehicle *v = vl[0];
 
	Vehicle *u = vl[0];
 

	
 
	if (!HASBIT(EngInfo(v->engine_type)->callbackmask, CBM_ARTIC_ENGINE)) return;
 

	
 
	for (uint i = 1; i < 10; i++) {
 
		uint16 callback = GetVehicleCallback(CBID_TRAIN_ARTIC_ENGINE, i, 0, v->engine_type, v);
 
		uint16 callback = GetVehicleCallback(CBID_VEHICLE_ARTIC_ENGINE, i, 0, v->engine_type, v);
 
		if (callback == CALLBACK_FAILED || callback == 0xFF) return;
 

	
 
		/* Attempt to use pre-allocated vehicles until they run out. This can happen
 
		 * if the callback returns different values depending on the cargo type. */
 
		u->next = vl[i];
 
		if (u->next == NULL) u->next = AllocateVehicle();
 
		if (u->next == NULL) return;
 

	
 
		u = u->next;
 

	
 
		EngineID engine_type = GetFirstEngineOfType(type) + GB(callback, 0, 7);
 
		bool flip_image = HASBIT(callback, 7);