/**
* Perform a random action when we are sitting idle, like rotating around.
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return The value 0. Always.
*/
uint16 Script_Unit_IdleAction(ScriptEngine *script)
{
Unit *u;
uint16 random;
uint16 movementType;
uint16 i;
VARIABLE_NOT_USED(script);
u = g_scriptCurrentUnit;
random = Tools_RandomLCG_Range(0, 10);
movementType = g_table_unitInfo[u->o.type].movementType;
if (movementType != MOVEMENT_FOOT && movementType != MOVEMENT_TRACKED && movementType != MOVEMENT_WHEELED) return 0;
if (movementType == MOVEMENT_FOOT && random > 8) {
u->spriteOffset = Tools_Random_256() & 0x3F;
Unit_UpdateMap(2, u);
}
if (random > 2) return 0;
/* Ensure the order of Tools_Random_256() calls. */
i = (Tools_Random_256() & 1) == 0 ? 1 : 0;
Unit_SetOrientation(u, Tools_Random_256(), false, i);
return 0;
}
/**
* Make the current unit harvest spice.
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return ??.
*/
uint16 Script_Unit_Harvest(ScriptEngine *script)
{
Unit *u;
uint16 packed;
uint16 type;
VARIABLE_NOT_USED(script);
u = g_scriptCurrentUnit;
if (u->o.type != UNIT_HARVESTER) return 0;
if (u->amount >= 100) return 0;
packed = Tile_PackTile(u->o.position);
type = Map_GetLandscapeType(packed);
if (type != LST_SPICE && type != LST_THICK_SPICE) return 0;
u->amount += Tools_Random_256() & 1;
u->o.flags.s.inTransport = true;
Unit_UpdateMap(2, u);
if (u->amount > 100) u->amount = 100;
if ((Tools_Random_256() & 0x1F) != 0) return 1;
Map_ChangeSpiceAmount(packed, -1);
return 0;
}
/**
* Get the tile from given tile at given maximum distance in random direction.
*
* @param tile The origin.
* @param distance The distance maximum.
* @param center Wether to center the offset of the tile.
* @return The tile.
*/
tile32 Tile_MoveByRandom(tile32 tile, uint16 distance, bool center)
{
uint16 x;
uint16 y;
tile32 ret;
uint8 orientation;
uint16 newDistance;
if (distance == 0) return tile;
x = Tile_GetX(tile);
y = Tile_GetY(tile);
newDistance = Tools_Random_256();
while (newDistance > distance) newDistance /= 2;
distance = newDistance;
orientation = Tools_Random_256();
x += ((_stepX[orientation] * distance) / 128) * 16;
y -= ((_stepY[orientation] * distance) / 128) * 16;
if (x > 16384 || y > 16384) return tile;
ret.s.x = x;
ret.s.y = y;
return center ? Tile_Center(ret) : ret;
}
/**
* Get a tile in the direction of a destination, randomized a bit.
*
* @param packed_from The origin.
* @param packed_to The destination.
* @return A packed tile.
*/
uint16 Tile_GetTileInDirectionOf(uint16 packed_from, uint16 packed_to)
{
int16 distance;
uint8 direction;
uint8 i;
if (packed_from == 0 || packed_to == 0) return 0;
distance = Tile_GetDistancePacked(packed_from, packed_to);
direction = Tile_GetDirectionPacked(packed_to, packed_from);
if (distance <= 10) return 0;
for (i = 0; i < 4; i++) {
int16 dir;
tile32 position;
uint16 packed;
dir = 29 + (Tools_Random_256() & 0x3F);
if ((Tools_Random_256() & 1) != 0) dir = -dir;
position = Tile_UnpackTile(packed_to);
position = Tile_MoveByDirection(position, direction + dir, min(distance, 20) << 8);
packed = Tile_PackTile(position);
if (Map_IsValidPosition(packed)) return packed;
}
return 0;
}
/**
* Destroy a structure and spawn soldiers around the place.
*
* Stack: *none*
*
* @param script The script engine to operate on.
* @return Always 0.
*/
uint16 Script_Structure_Destroy(ScriptEngine *script)
{
Structure *s;
uint16 position;
uint16 layout;
uint16 i;
VARIABLE_NOT_USED(script);
s = g_scriptCurrentStructure;
layout = g_table_structureInfo[s->o.type].layout;
position = Tile_PackTile(s->o.position);
Structure_Remove(s);
for (i = 0; i < g_table_structure_layoutTileCount[layout]; i++) {
tile32 tile;
Unit *u;
tile = Tile_UnpackTile(position + g_table_structure_layoutTiles[layout][i]);
if (g_table_structureInfo[s->o.type].o.spawnChance < Tools_Random_256()) continue;
u = Unit_Create(UNIT_INDEX_INVALID, UNIT_SOLDIER, s->o.houseID, tile, Tools_Random_256());
if (u == NULL) continue;
u->o.hitpoints = g_table_unitInfo[UNIT_SOLDIER].o.hitpoints * (Tools_Random_256() & 3) / 256;
if (s->o.houseID != g_playerHouseID) {
Unit_SetAction(u, ACTION_ATTACK);
continue;
}
Unit_SetAction(u, ACTION_MOVE);
tile = Tile_MoveByRandom(u->o.position, 32, true);
u->targetMove = Tools_Index_Encode(Tile_PackTile(tile), IT_TILE);
}
if (g_debugScenario) return 0;
if (s->o.houseID != g_playerHouseID) return 0;
if (g_config.language == LANGUAGE_FRENCH) {
GUI_DisplayText("%s %s %s", 0, String_Get_ByIndex(g_table_structureInfo[s->o.type].o.stringID_full), g_table_houseInfo[s->o.houseID].name, String_Get_ByIndex(0x85));
} else {
GUI_DisplayText("%s %s %s", 0, g_table_houseInfo[s->o.houseID].name, String_Get_ByIndex(g_table_structureInfo[s->o.type].o.stringID_full), String_Get_ByIndex(0x85));
}
return 0;
}
/**
* Handle damage to a tile, removing spice, removing concrete, stuff like that.
* @param e The Explosion to handle damage on.
* @param parameter Unused parameter.
*/
static void Explosion_Func_TileDamage(Explosion *e, uint16 parameter)
{
static const int16 craterIconMapIndex[] = { -1, 2, 1 };
uint16 packed;
uint16 type;
Tile *t;
int16 iconMapIndex;
uint16 overlaySpriteID;
uint16 *iconMap;
VARIABLE_NOT_USED(parameter);
packed = Tile_PackTile(e->position);
if (!Map_IsPositionUnveiled(packed)) return;
type = Map_GetLandscapeType(packed);
if (type == LST_STRUCTURE || type == LST_DESTROYED_WALL) return;
t = &g_map[packed];
if (type == LST_CONCRETE_SLAB) {
t->groundSpriteID = g_mapSpriteID[packed];
Map_Update(packed, 0, false);
}
if (g_table_landscapeInfo[type].craterType == 0) return;
/* You cannot damage veiled tiles */
overlaySpriteID = t->overlaySpriteID;
if (!Sprite_IsUnveiled(overlaySpriteID)) return;
iconMapIndex = craterIconMapIndex[g_table_landscapeInfo[type].craterType];
iconMap = &g_iconMap[g_iconMap[iconMapIndex]];
if (iconMap[0] <= overlaySpriteID && overlaySpriteID <= iconMap[10]) {
/* There already is a crater; make it bigger */
overlaySpriteID -= iconMap[0];
if (overlaySpriteID < 4) overlaySpriteID += 2;
} else {
/* Randomly pick 1 of the 2 possible craters */
overlaySpriteID = Tools_Random_256() & 1;
}
/* Reduce spice if there is any */
Map_ChangeSpiceAmount(packed, -1);
/* Boom a bloom if there is one */
if (t->groundSpriteID == g_bloomSpriteID) {
Map_Bloom_ExplodeSpice(packed, g_playerHouseID);
return;
}
/* Update the tile with the crater */
t->overlaySpriteID = overlaySpriteID + iconMap[0];
Map_Update(packed, 0, false);
}
/**
* Create a new soldier unit.
*
* Stack: 1 - Action for the new Unit.
*
* @param script The script engine to operate on.
* @return 1 if a new Unit has been created, 0 otherwise.
*/
uint16 Script_Unit_RandomSoldier(ScriptEngine *script)
{
Unit *u;
Unit *nu;
tile32 position;
u = g_scriptCurrentUnit;
if (Tools_Random_256() >= g_table_unitInfo[u->o.type].o.spawnChance) return 0;
position = Tile_MoveByRandom(u->o.position, 20, true);
nu = Unit_Create(UNIT_INDEX_INVALID, UNIT_SOLDIER, u->o.houseID, position, Tools_Random_256());
if (nu == NULL) return 0;
nu->deviated = u->deviated;
Unit_SetAction(nu, STACK_PEEK(1));
return 1;
}
/**
* Set the animation of a Explosion.
* @param e The Explosion to change.
* @param animationMapID The animation map to use.
*/
static void Explosion_Func_SetAnimation(Explosion *e, uint16 animationMapID)
{
uint16 packed;
packed = Tile_PackTile(e->position);
if (Structure_Get_ByPackedTile(packed) != NULL) return;
animationMapID += Tools_Random_256() & 0x1;
animationMapID += g_table_landscapeInfo[Map_GetLandscapeType(packed)].isSand ? 0 : 2;
assert(animationMapID < 16);
Animation_Start(g_table_animation_map[animationMapID], e->position, 0, e->houseID, 3);
}
/**
* Refine spice in the current structure.
*
* Stack: *none*
*
* @param script The script engine to operate on.
* @return 0 if there is no spice to refine, otherwise 1.
*/
uint16 Script_Structure_RefineSpice(ScriptEngine *script)
{
const StructureInfo *si;
Structure *s;
Unit *u;
House *h;
uint16 harvesterStep, creditsStep;
VARIABLE_NOT_USED(script);
s = g_scriptCurrentStructure;
if (s->o.linkedID == 0xFF) {
Structure_SetState(s, STRUCTURE_STATE_IDLE);
return 0;
}
u = Unit_Get_ByIndex(s->o.linkedID);
si = &g_table_structureInfo[s->o.type];
harvesterStep = (s->o.hitpoints * 256 / si->o.hitpoints) * 3 / 256;
if (u->amount < harvesterStep) harvesterStep = u->amount;
if (u->amount != 0 && harvesterStep < 1) harvesterStep = 1;
if (harvesterStep == 0) return 0;
creditsStep = 7;
if (u->o.houseID != g_playerHouseID) {
creditsStep += (Tools_Random_256() % 4) - 1;
}
creditsStep *= harvesterStep;
if (House_AreAllied(g_playerHouseID, s->o.houseID)) {
g_scenario.harvestedAllied += creditsStep;
if (g_scenario.harvestedAllied > 65000) g_scenario.harvestedAllied = 65000;
} else {
g_scenario.harvestedEnemy += creditsStep;
if (g_scenario.harvestedEnemy > 65000) g_scenario.harvestedEnemy = 65000;
}
h = House_Get_ByIndex(s->o.houseID);
h->credits += creditsStep;
u->amount -= harvesterStep;
if (u->amount == 0) u->o.flags.s.inTransport = false;
s->o.script.delay = 6;
return 1;
}
static void Skirmish_GenSpiceBlooms()
{
const uint16 acceptableLst = (1 << LST_NORMAL_SAND) | (1 << LST_ENTIRELY_DUNE) | (1 << LST_PARTIAL_DUNE);
for (int count = Tools_RandomLCG_Range(5, 10); count > 0; count--)
{
const uint16 packed = Skirmish_PickRandomLocation(acceptableLst, 0);
if (packed == 0)
continue;
if ((Tools_Random_256() & 0x3) == 0)
{
Scenario_Load_Map_Field(packed, &g_map[packed]);
}
else
{
Scenario_Load_Map_Bloom(packed, &g_map[packed]);
}
}
}
/**
* Loop over all houses, preforming various of tasks.
*/
void GameLoop_House(void)
{
PoolFindStruct find;
House *h = NULL;
bool tickHouse = false;
bool tickPowerMaintenance = false;
bool tickStarport = false;
bool tickReinforcement = false;
bool tickMissileCountdown = false;
bool tickStarportAvailability = false;
if (g_debugScenario) return;
if (s_tickHouseHouse <= g_timerGame) {
tickHouse = true;
s_tickHouseHouse = g_timerGame + 900;
}
if (g_tickHousePowerMaintenance <= g_timerGame) {
tickPowerMaintenance = true;
g_tickHousePowerMaintenance = g_timerGame + 10800;
}
if (s_tickHouseStarport <= g_timerGame) {
tickStarport = true;
s_tickHouseStarport = g_timerGame + 180;
}
if (s_tickHouseReinforcement <= g_timerGame) {
tickReinforcement = true;
s_tickHouseReinforcement = g_timerGame + (g_debugGame ? 60 : 600);
}
if (s_tickHouseMissileCountdown <= g_timerGame) {
tickMissileCountdown = true;
s_tickHouseMissileCountdown = g_timerGame + 60;
}
if (s_tickHouseStarportAvailability <= g_timerGame) {
tickStarportAvailability = true;
s_tickHouseStarportAvailability = g_timerGame + 1800;
}
if (tickMissileCountdown && g_houseMissileCountdown != 0) {
g_houseMissileCountdown--;
Sound_Output_Feedback(g_houseMissileCountdown + 41);
if (g_houseMissileCountdown == 0) Unit_LaunchHouseMissile(Map_FindLocationTile(4, g_playerHouseID));
}
if (tickStarportAvailability) {
uint16 type;
/* Pick a random unit to increase starport availability */
type = Tools_RandomLCG_Range(0, UNIT_MAX - 1);
/* Increase how many of this unit is available via starport by one */
if (g_starportAvailable[type] != 0 && g_starportAvailable[type] < 10) {
if (g_starportAvailable[type] == -1) {
g_starportAvailable[type] = 1;
} else {
g_starportAvailable[type]++;
}
}
}
if (tickReinforcement) {
Unit *nu = NULL;
int i;
for (i = 0; i < 16; i++) {
uint16 locationID;
bool deployed;
Unit *u;
if (g_scenario.reinforcement[i].unitID == UNIT_INDEX_INVALID) continue;
if (g_scenario.reinforcement[i].timeLeft == 0) continue;
if (--g_scenario.reinforcement[i].timeLeft != 0) continue;
u = Unit_Get_ByIndex(g_scenario.reinforcement[i].unitID);
locationID = g_scenario.reinforcement[i].locationID;
deployed = false;
if (locationID >= 4) {
if (nu == NULL) {
nu = Unit_Create(UNIT_INDEX_INVALID, UNIT_CARRYALL, u->o.houseID, Tile_UnpackTile(Map_FindLocationTile(Tools_Random_256() & 3, u->o.houseID)), 100);
if (nu != NULL) {
nu->o.flags.s.byScenario = true;
Unit_SetDestination(nu, Tools_Index_Encode(Map_FindLocationTile(locationID, u->o.houseID), IT_TILE));
}
}
if (nu != NULL) {
u->o.linkedID = nu->o.linkedID;
nu->o.linkedID = (uint8)u->o.index;
nu->o.flags.s.inTransport = true;
g_scenario.reinforcement[i].unitID = UNIT_INDEX_INVALID;
deployed = true;
} else {
/* Failed to create carry-all, try again in a short moment */
g_scenario.reinforcement[i].timeLeft = 1;
}
} else {
deployed = Unit_SetPosition(u, Tile_UnpackTile(Map_FindLocationTile(locationID, u->o.houseID)));
}
if (deployed && g_scenario.reinforcement[i].repeat != 0) {
tile32 tile;
tile.x = 0xFFFF;
tile.y = 0xFFFF;
g_validateStrictIfZero++;
u = Unit_Create(UNIT_INDEX_INVALID, u->o.type, u->o.houseID, tile, 0);
g_validateStrictIfZero--;
if (u != NULL) {
g_scenario.reinforcement[i].unitID = u->o.index;
g_scenario.reinforcement[i].timeLeft = g_scenario.reinforcement[i].timeBetween;
}
}
}
}
find.houseID = HOUSE_INVALID;
find.index = 0xFFFF;
find.type = 0xFFFF;
while (true) {
h = House_Find(&find);
if (h == NULL) break;
if (tickHouse) {
/* ENHANCEMENT -- Originally this code was outside the house loop, which seems very odd.
* This problem is considered to be so bad, that the original code has been removed. */
if (h->index != g_playerHouseID) {
if (h->creditsStorage < h->credits) {
h->credits = h->creditsStorage;
}
} else {
uint16 maxCredits = max(h->creditsStorage, g_playerCreditsNoSilo);
if (h->credits > maxCredits) {
h->credits = maxCredits;
GUI_DisplayText(String_Get_ByIndex(STR_INSUFFICIENT_SPICE_STORAGE_AVAILABLE_SPICE_IS_LOST), 1);
}
}
if (h->index == g_playerHouseID) {
if (h->creditsStorage > g_playerCreditsNoSilo) {
g_playerCreditsNoSilo = 0;
}
if (g_playerCreditsNoSilo == 0 && g_campaignID > 1 && h->credits != 0) {
if (h->creditsStorage != 0 && ((h->credits * 256 / h->creditsStorage) > 200)) {
GUI_DisplayText(String_Get_ByIndex(STR_SPICE_STORAGE_CAPACITY_LOW_BUILD_SILOS), 0);
}
}
if (h->credits < 100 && g_playerCreditsNoSilo != 0) {
GUI_DisplayText(String_Get_ByIndex(STR_CREDITS_ARE_LOW_HARVEST_SPICE_FOR_MORE_CREDITS), 0);
}
}
}
if (tickHouse) House_EnsureHarvesterAvailable((uint8)h->index);
if (tickStarport && h->starportLinkedID != UNIT_INDEX_INVALID) {
Unit *u = NULL;
h->starportTimeLeft--;
if ((int16)h->starportTimeLeft < 0) h->starportTimeLeft = 0;
if (h->starportTimeLeft == 0) {
Structure *s;
s = Structure_Get_ByIndex(g_structureIndex);
if (s->o.type == STRUCTURE_STARPORT && s->o.houseID == h->index) {
u = Unit_CreateWrapper((uint8)h->index, UNIT_FRIGATE, Tools_Index_Encode(s->o.index, IT_STRUCTURE));
} else {
PoolFindStruct find2;
find2.houseID = h->index;
find2.index = 0xFFFF;
find2.type = STRUCTURE_STARPORT;
while (true) {
s = Structure_Find(&find2);
if (s == NULL) break;
if (s->o.linkedID != 0xFF) continue;
u = Unit_CreateWrapper((uint8)h->index, UNIT_FRIGATE, Tools_Index_Encode(s->o.index, IT_STRUCTURE));
break;
}
}
if (u != NULL) {
u->o.linkedID = (uint8)h->starportLinkedID;
h->starportLinkedID = UNIT_INDEX_INVALID;
u->o.flags.s.inTransport = true;
Sound_Output_Feedback(38);
}
h->starportTimeLeft = (u != NULL) ? g_table_houseInfo[h->index].starportDeliveryTime : 1;
}
}
if (tickHouse) {
House_CalculatePowerAndCredit(h);
Structure_CalculateHitpointsMax(h);
if (h->timerUnitAttack != 0) h->timerUnitAttack--;
if (h->timerSandwormAttack != 0) h->timerSandwormAttack--;
if (h->timerStructureAttack != 0) h->timerStructureAttack--;
if (h->harvestersIncoming > 0 && Unit_CreateWrapper((uint8)h->index, UNIT_HARVESTER, 0) != NULL) h->harvestersIncoming--;
}
if (tickPowerMaintenance) {
uint16 powerMaintenanceCost = (h->powerUsage / 32) + 1;
h->credits -= min(h->credits, powerMaintenanceCost);
}
}
}
static void Skirmish_GenUnitsAI(HouseType houseID)
{
const uint16 unacceptableLst = (1 << LST_WALL) | (1 << LST_STRUCTURE) | (1 << LST_BLOOM_FIELD);
Structure* factory[8] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL};
unsigned int nfactories = 0;
PoolFindStruct find;
find.houseID = houseID;
find.type = 0xFFFF;
find.index = STRUCTURE_INDEX_INVALID;
Structure* s;
while ((nfactories < lengthof(factory)) && ((s = Structure_Find(&find)) != NULL))
{
/* Do not produce from hi-tech. */
if (s->o.type == STRUCTURE_LIGHT_VEHICLE ||
s->o.type == STRUCTURE_HEAVY_VEHICLE ||
s->o.type == STRUCTURE_WOR_TROOPER ||
s->o.type == STRUCTURE_BARRACKS)
{
factory[nfactories] = s;
nfactories++;
}
}
if (nfactories == 0)
return;
for (int count = 8; count > 0;)
{
const uint16 packed = Skirmish_PickRandomLocation(0xFF, unacceptableLst);
if (packed == 0)
continue;
uint16 dist_ally;
uint16 dist_enemy;
Skirmish_FindClosestStructures(houseID, packed, &dist_ally, &dist_enemy);
if (dist_ally > 8)
continue;
/* If there's a mountain here, build infantry. */
const LandscapeType lst = (const LandscapeType)Map_GetLandscapeType(packed);
UnitType type;
if (lst == LST_ENTIRELY_MOUNTAIN || lst == LST_PARTIAL_MOUNTAIN)
{
type = House_GetInfantrySquad(houseID);
}
/* Otherwise, build a random vehicle. */
else
{
const int r = Tools_RandomLCG_Range(0, nfactories - 1);
type = (UnitType)StructureAI_PickNextToBuild(factory[r]);
if (type == UNIT_INVALID)
continue;
}
const UnitActionType actionType = ((Tools_Random_256() & 0x3) == 0) ? ACTION_AMBUSH : ACTION_AREA_GUARD;
const tile32 position = Tile_UnpackTile(packed);
Scenario_Create_Unit(houseID, type, 256, position, 127, actionType);
count--;
}
}
/* Use breadth first flood fill to create a list of buildable tiles
* around x0, y0. Only fill tiles that are part of the same source
* island (similar to bucket fill same colour).
*/
static int Skirmish_FindBuildableArea(int island, int x0, int y0, SkirmishData* sd, BuildableTile* buildable)
{
const int dx[4] = {0, 1, 0, -1};
const int dy[4] = {-1, 0, 1, 0};
int* islandID = sd->islandID;
int n = 0;
/* Starting case. */
do
{
if (!(Map_InRangeX(x0) && Map_InRangeY(y0)))
break;
const uint16 packed = Tile_PackXY(x0, y0);
if (islandID[packed] != island)
break;
const LandscapeType lst = (const LandscapeType)Map_GetLandscapeType(packed);
const LandscapeInfo* li = &g_table_landscapeInfo[lst];
if (!(li->isValidForStructure || li->isValidForStructure2))
break;
buildable[n].x = x0;
buildable[n].y = y0;
buildable[n].packed = packed;
buildable[n].parent = 0;
islandID[packed] = sd->nislands;
n++;
}
while (false);
for (int i = 0; i < n; i++)
{
const int r = Tools_Random_256() & 0x3;
for (int j = 0; j < 4; j++)
{
const int x = buildable[i].x + dx[(r + j) & 0x3];
const int y = buildable[i].y + dy[(r + j) & 0x3];
if (!(Map_InRangeX(x) && Map_InRangeY(y)))
continue;
const uint16 packed = Tile_PackXY(x, y);
if (islandID[packed] != island)
continue;
const LandscapeType lst = (const LandscapeType)Map_GetLandscapeType(packed);
const LandscapeInfo* li = &g_table_landscapeInfo[lst];
if (!(li->isValidForStructure || li->isValidForStructure2))
continue;
buildable[n].x = x;
buildable[n].y = y;
buildable[n].packed = packed;
buildable[n].parent = i;
islandID[packed] = sd->nislands;
n++;
}
}
return n;
}
/**
* Makes the current unit fire a bullet (or eat its target).
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return The value 1 if the current unit fired/eat, 0 otherwise.
*/
uint16 Script_Unit_Fire(ScriptEngine *script)
{
const UnitInfo *ui;
Unit *u;
uint16 target;
UnitType typeID;
uint16 distance;
bool fireTwice;
uint16 damage;
u = g_scriptCurrentUnit;
target = u->targetAttack;
if (target == 0 || !Tools_Index_IsValid(target)) return 0;
if (u->o.type != UNIT_SANDWORM && target == Tools_Index_Encode(Tile_PackTile(u->o.position), IT_TILE)) u->targetAttack = 0;
if (u->targetAttack != target) {
Unit_SetTarget(u, target);
return 0;
}
ui = &g_table_unitInfo[u->o.type];
if (u->o.type != UNIT_SANDWORM && u->orientation[ui->o.flags.hasTurret ? 1 : 0].speed != 0) return 0;
if (Tools_Index_GetType(target) == IT_TILE && Object_GetByPackedTile(Tools_Index_GetPackedTile(target)) != NULL) Unit_SetTarget(u, target);
if (u->fireDelay != 0) return 0;
distance = Object_GetDistanceToEncoded(&u->o, target);
if ((int16)(ui->fireDistance << 8) < (int16)distance) return 0;
if (u->o.type != UNIT_SANDWORM && (Tools_Index_GetType(target) != IT_UNIT || g_table_unitInfo[Tools_Index_GetUnit(target)->o.type].movementType != MOVEMENT_WINGER)) {
int16 diff = 0;
int8 orientation;
orientation = Tile_GetDirection(u->o.position, Tools_Index_GetTile(target));
diff = abs(u->orientation[ui->o.flags.hasTurret ? 1 : 0].current - orientation);
if (ui->movementType == MOVEMENT_WINGER) diff /= 8;
if (diff >= 8) return 0;
}
damage = ui->damage;
typeID = ui->bulletType;
fireTwice = ui->flags.firesTwice && u->o.hitpoints > ui->o.hitpoints / 2;
if ((u->o.type == UNIT_TROOPERS || u->o.type == UNIT_TROOPER) && (int16)distance > 512) typeID = UNIT_MISSILE_TROOPER;
switch (typeID) {
case UNIT_SANDWORM: {
Unit *u2;
Unit_UpdateMap(0, u);
u2 = Tools_Index_GetUnit(target);
if (u2 != NULL) {
u2->o.script.variables[1] = 0xFFFF;
Unit_RemovePlayer(u2);
Unit_HouseUnitCount_Remove(u2);
Unit_Remove(u2);
}
Map_MakeExplosion(ui->explosionType, u->o.position, 0, 0);
Voice_PlayAtTile(63, u->o.position);
Unit_UpdateMap(1, u);
u->amount--;
script->delay = 12;
if ((int8)u->amount < 1) Unit_SetAction(u, ACTION_DIE);
} break;
case UNIT_MISSILE_TROOPER:
damage -= damage / 4;
/* FALL-THROUGH */
case UNIT_MISSILE_ROCKET:
case UNIT_MISSILE_TURRET:
case UNIT_MISSILE_DEVIATOR:
case UNIT_BULLET:
case UNIT_SONIC_BLAST: {
Unit *bullet;
bullet = Unit_CreateBullet(u->o.position, typeID, Unit_GetHouseID(u), damage, target);
if (bullet == NULL) return 0;
bullet->originEncoded = Tools_Index_Encode(u->o.index, IT_UNIT);
Voice_PlayAtTile(ui->bulletSound, u->o.position);
Unit_Deviation_Decrease(u, 20);
} break;
default: break;
}
u->fireDelay = Tools_AdjustToGameSpeed(ui->fireDelay * 2, 1, 0xFFFF, true);
if (fireTwice) {
u->o.flags.s.fireTwiceFlip = !u->o.flags.s.fireTwiceFlip;
if (u->o.flags.s.fireTwiceFlip) u->fireDelay = Tools_AdjustToGameSpeed(5, 1, 10, true) & 0xFF;
} else {
u->o.flags.s.fireTwiceFlip = false;
}
u->fireDelay += Tools_Random_256() & 1;
Unit_UpdateMap(2, u);
return 1;
}
/**
* Handles the Click events for the Viewport widget.
*
* @param w The widget.
*/
bool GUI_Widget_Viewport_Click(Widget *w)
{
uint16 direction;
uint16 x, y;
uint16 spriteID;
uint16 packed;
bool click, drag;
spriteID = g_cursorSpriteID;
switch (w->index) {
default: break;
case 39: spriteID = 1; break;
case 40: spriteID = 2; break;
case 41: spriteID = 4; break;
case 42: spriteID = 3; break;
case 43: spriteID = g_cursorDefaultSpriteID; break;
case 44: spriteID = g_cursorDefaultSpriteID; break;
case 45: spriteID = 0; break;
}
if (spriteID != g_cursorSpriteID) {
/* HotSpots for different cursor types. */
static const XYPosition cursorHotSpots[6] = {{0, 0}, {5, 0}, {8, 5}, {5, 8}, {0, 5}, {8, 8}};
s_tickCursor = g_timerGame;
Sprites_SetMouseSprite(cursorHotSpots[spriteID].x, cursorHotSpots[spriteID].y, g_sprites[spriteID]);
g_cursorSpriteID = spriteID;
}
if (w->index == 45) return true;
click = false;
drag = false;
if ((w->state.buttonState & 0x11) != 0) {
click = true;
g_var_37B8 = false;
} else if ((w->state.buttonState & 0x22) != 0 && !g_var_37B8) {
drag = true;
}
/* ENHANCEMENT -- Dune2 depends on slow CPUs to limit the rate mouse clicks are handled. */
if (g_dune2_enhanced && (click || drag)) {
if (s_tickClick + 2 >= g_timerGame) return true;
s_tickClick = g_timerGame;
}
direction = 0xFFFF;
switch (w->index) {
default: break;
case 39: direction = 0; break;
case 40: direction = 2; break;
case 41: direction = 6; break;
case 42: direction = 4; break;
}
if (direction != 0xFFFF) {
/* Always scroll if we have a click or a drag */
if (!click && !drag) {
/* Wait for either one of the timers */
if (s_tickMapScroll + 10 >= g_timerGame || s_tickCursor + 20 >= g_timerGame) return true;
/* Don't scroll if we have a structure/unit selected and don't want to autoscroll */
if (g_gameConfig.autoScroll == 0 && (g_selectionType == SELECTIONTYPE_STRUCTURE || g_selectionType == SELECTIONTYPE_UNIT)) return true;
}
s_tickMapScroll = g_timerGame;
Map_MoveDirection(direction);
return true;
}
if (click) {
x = g_mouseClickX;
y = g_mouseClickY;
} else {
x = g_mouseX;
y = g_mouseY;
}
if (w->index == 43) {
x = x / 16 + Tile_GetPackedX(g_minimapPosition);
y = (y - 40) / 16 + Tile_GetPackedY(g_minimapPosition);
} else if (w->index == 44) {
uint16 mapScale;
const MapInfo *mapInfo;
mapScale = g_scenario.mapScale;
mapInfo = &g_mapInfos[mapScale];
x = min((max(x, 256) - 256) / (mapScale + 1), mapInfo->sizeX - 1) + mapInfo->minX;
y = min((max(y, 136) - 136) / (mapScale + 1), mapInfo->sizeY - 1) + mapInfo->minY;
}
packed = Tile_PackXY(x, y);
if (click && g_selectionType == SELECTIONTYPE_TARGET) {
Unit *u;
ActionType action;
uint16 encoded;
GUI_DisplayText(NULL, -1);
if (g_unitHouseMissile != NULL) {
Unit_LaunchHouseMissile(packed);
return true;
}
u = g_unitActive;
action = g_activeAction;
Object_Script_Variable4_Clear(&u->o);
u->targetAttack = 0;
u->targetMove = 0;
u->route[0] = 0xFF;
if (action != ACTION_MOVE && action != ACTION_HARVEST) {
encoded = Tools_Index_Encode(Unit_FindTargetAround(packed), IT_TILE);
} else {
encoded = Tools_Index_Encode(packed, IT_TILE);
}
Unit_SetAction(u, action);
if (action == ACTION_MOVE) {
Unit_SetDestination(u, encoded);
} else if (action == ACTION_HARVEST) {
u->targetMove = encoded;
} else {
Unit *target;
Unit_SetTarget(u, encoded);
target = Tools_Index_GetUnit(u->targetAttack);
if (target != NULL) target->blinkCounter = 8;
}
if (g_enableVoices == 0) {
Driver_Sound_Play(36, 0xFF);
} else if (g_table_unitInfo[u->o.type].movementType == MOVEMENT_FOOT) {
Sound_StartSound(g_table_actionInfo[action].soundID);
} else {
Sound_StartSound(((Tools_Random_256() & 0x1) == 0) ? 20 : 17);
}
g_unitActive = NULL;
g_activeAction = 0xFFFF;
GUI_ChangeSelectionType(SELECTIONTYPE_UNIT);
return true;
}
if (click && g_selectionType == SELECTIONTYPE_PLACE) {
const StructureInfo *si;
Structure *s;
House *h;
s = g_structureActive;
si = &g_table_structureInfo[g_structureActiveType];
h = g_playerHouse;
if (Structure_Place(s, g_selectionPosition)) {
Voice_Play(20);
if (s->o.type == STRUCTURE_PALACE) House_Get_ByIndex(s->o.houseID)->palacePosition = s->o.position;
if (g_structureActiveType == STRUCTURE_REFINERY && g_validateStrictIfZero == 0) {
Unit *u;
g_validateStrictIfZero++;
u = Unit_CreateWrapper(g_playerHouseID, UNIT_HARVESTER, Tools_Index_Encode(s->o.index, IT_STRUCTURE));
g_validateStrictIfZero--;
if (u == NULL) {
h->harvestersIncoming++;
} else {
u->originEncoded = Tools_Index_Encode(s->o.index, IT_STRUCTURE);
}
}
GUI_ChangeSelectionType(SELECTIONTYPE_STRUCTURE);
s = Structure_Get_ByPackedTile(g_structureActivePosition);
if (s != NULL) {
if ((Structure_GetBuildable(s) & (1 << s->objectType)) == 0) Structure_BuildObject(s, 0xFFFE);
}
g_structureActiveType = 0xFFFF;
g_structureActive = NULL;
g_selectionState = 0; /* Invalid. */
GUI_DisplayHint(si->o.hintStringID, si->o.spriteID);
House_UpdateRadarState(h);
if (h->powerProduction < h->powerUsage) {
if ((h->structuresBuilt & (1 << STRUCTURE_OUTPOST)) != 0) {
GUI_DisplayText(String_Get_ByIndex(STR_NOT_ENOUGH_POWER_FOR_RADAR_BUILD_WINDTRAPS), 3);
}
}
return true;
}
Voice_Play(47);
if (g_structureActiveType == STRUCTURE_SLAB_1x1 || g_structureActiveType == STRUCTURE_SLAB_2x2) {
GUI_DisplayText(String_Get_ByIndex(STR_CAN_NOT_PLACE_FOUNDATION_HERE), 2);
} else {
GUI_DisplayHint(STR_STRUCTURES_MUST_BE_PLACED_ON_CLEAR_ROCK_OR_CONCRETE_AND_ADJACENT_TO_ANOTHER_FRIENDLY_STRUCTURE, 0xFFFF);
GUI_DisplayText(String_Get_ByIndex(STR_CAN_NOT_PLACE_S_HERE), 2, String_Get_ByIndex(si->o.stringID_abbrev));
}
return true;
}
if (click && w->index == 43) {
uint16 position;
if (g_debugScenario) {
position = packed;
} else {
position = Unit_FindTargetAround(packed);
}
if (g_map[position].overlaySpriteID != g_veiledSpriteID || g_debugScenario) {
if (Object_GetByPackedTile(position) != NULL || g_debugScenario) {
Map_SetSelection(position);
Unit_DisplayStatusText(g_unitSelected);
}
}
if ((w->state.buttonState & 0x10) != 0) Map_SetViewportPosition(packed);
return true;
}
if ((click || drag) && w->index == 44) {
Map_SetViewportPosition(packed);
return true;
}
if (g_selectionType == SELECTIONTYPE_TARGET) {
Map_SetSelection(Unit_FindTargetAround(packed));
} else if (g_selectionType == SELECTIONTYPE_PLACE) {
Map_SetSelection(packed);
}
return true;
}
/**
* Pause the animation for a few ticks.
* @param animation The Animation to pause.
* @param parameter How many ticks it should pause.
* @note Delays are randomly delayed with [0..3] ticks.
*/
static void Animation_Func_Pause(Animation *animation, int16 parameter)
{
assert(parameter >= 0);
animation->tickNext = g_timerGUI + parameter + (Tools_Random_256() % 4);
}
