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(svn r17857) -Fix (r10442): [NewGRF] 'subtract-in' is also signed for production callback version 0.

This commit is contained in:
frosch 2009-10-24 18:51:21 +00:00
parent 64f9ee3a2d
commit 8e23ba540c
3 changed files with 7 additions and 7 deletions
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6
src/newgrf.cpp
View File

@ -2966,15 +2966,15 @@ static void NewSpriteGroup(byte *buf, size_t len)
group->version = type;
if (type == 0) {
for (uint i = 0; i < 3; i++) {
group->substract_input[i] = grf_load_word(&buf);
group->subtract_input[i] = (int16)grf_load_word(&buf); // signed
}
for (uint i = 0; i < 2; i++) {
group->add_output[i] = grf_load_word(&buf);
group->add_output[i] = grf_load_word(&buf); // unsigned
}
group->again = grf_load_byte(&buf);
} else {
for (uint i = 0; i < 3; i++) {
group->substract_input[i] = grf_load_byte(&buf);
group->subtract_input[i] = grf_load_byte(&buf);
}
for (uint i = 0; i < 2; i++) {
group->add_output[i] = grf_load_byte(&buf);

4
src/newgrf_industries.cpp
View File

@ -502,7 +502,7 @@ bool CheckIfCallBackAllowsAvailability(IndustryType type, IndustryAvailabilityCa
return true;
}
static int32 DerefIndProd(uint field, bool use_register)
static int32 DerefIndProd(int field, bool use_register)
{
return use_register ? (int32)GetRegister(field) : field;
}
@ -543,7 +543,7 @@ void IndustryProductionCallback(Industry *ind, int reason)
bool deref = (group->version == 1);
for (uint i = 0; i < 3; i++) {
ind->incoming_cargo_waiting[i] = Clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->substract_input[i], deref) * multiplier, 0, 0xFFFF);
ind->incoming_cargo_waiting[i] = Clamp(ind->incoming_cargo_waiting[i] - DerefIndProd(group->subtract_input[i], deref) * multiplier, 0, 0xFFFF);
}
for (uint i = 0; i < 2; i++) {
ind->produced_cargo_waiting[i] = Clamp(ind->produced_cargo_waiting[i] + max(DerefIndProd(group->add_output[i], deref), 0) * multiplier, 0, 0xFFFF);

4
src/newgrf_spritegroup.h
View File

@ -279,8 +279,8 @@ struct IndustryProductionSpriteGroup : SpriteGroup {
IndustryProductionSpriteGroup() : SpriteGroup(SGT_INDUSTRY_PRODUCTION) {}
uint8 version;
uint16 substract_input[3];
uint16 add_output[2];
int16 subtract_input[3]; // signed
uint16 add_output[2]; // unsigned
uint8 again;
};