/**
* Start the animation on the current tile.
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return The value 1. Always.
*/
uint16 Script_Unit_StartAnimation(ScriptEngine *script)
{
Unit *u;
uint16 animationUnitID;
uint16 position;
VARIABLE_NOT_USED(script);
u = g_scriptCurrentUnit;
position = Tile_PackTile(Tile_Center(u->o.position));
Animation_Stop_ByTile(position);
animationUnitID = g_table_landscapeInfo[Map_GetLandscapeType(Tile_PackTile(u->o.position))].isSand ? 0 : 1;
if (u->o.script.variables[1] == 1) animationUnitID += 2;
g_map[position].houseID = Unit_GetHouseID(u);
assert(animationUnitID < 4);
if (g_table_unitInfo[u->o.type].displayMode == 3) {
Animation_Start(g_table_animation_unitScript1[animationUnitID], u->o.position, 0, Unit_GetHouseID(u), 4);
} else {
Animation_Start(g_table_animation_unitScript2[animationUnitID], u->o.position, 0, Unit_GetHouseID(u), 4);
}
return 1;
}
/**
* Transform an MCV into Construction Yard.
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return 1 if and only if the transformation succeeded.
*/
uint16 Script_Unit_MCVDeploy(ScriptEngine *script)
{
Unit *u;
Structure *s = NULL;
uint16 i;
VARIABLE_NOT_USED(script);
u = g_scriptCurrentUnit;
Unit_UpdateMap(0, u);
for (i = 0; i < 4; i++) {
static int8 offsets[4] = { 0, -1, -64, -65 };
s = Structure_Create(STRUCTURE_INDEX_INVALID, STRUCTURE_CONSTRUCTION_YARD, Unit_GetHouseID(u), Tile_PackTile(u->o.position) + offsets[i]);
if (s != NULL) {
Unit_Remove(u);
return 1;
}
}
if (Unit_GetHouseID(u) == g_playerHouseID) {
GUI_DisplayText(String_Get_ByIndex(STR_UNIT_IS_UNABLE_TO_DEPLOY_HERE), 0);
}
Unit_UpdateMap(1, u);
return 0;
}
/**
* Get information about the unit, like hitpoints, current target, etc.
*
* Stack: 1 - Which information you would like.
*
* @param script The script engine to operate on.
* @return The information you requested.
*/
uint16 Script_Unit_GetInfo(ScriptEngine *script)
{
const UnitInfo *ui;
Unit *u;
u = g_scriptCurrentUnit;
ui = &g_table_unitInfo[u->o.type];
switch (STACK_PEEK(1)) {
case 0x00: return u->o.hitpoints * 256 / ui->o.hitpoints;
case 0x01: return Tools_Index_IsValid(u->targetMove) ? u->targetMove : 0;
case 0x02: return ui->fireDistance << 8;
case 0x03: return u->o.index;
case 0x04: return u->orientation[0].current;
case 0x05: return u->targetAttack;
case 0x06:
if (u->originEncoded == 0 || u->o.type == UNIT_HARVESTER) Unit_FindClosestRefinery(u);
return u->originEncoded;
case 0x07: return u->o.type;
case 0x08: return Tools_Index_Encode(u->o.index, IT_UNIT);
case 0x09: return u->movingSpeed;
case 0x0A: return abs(u->orientation[0].target - u->orientation[0].current);
case 0x0B: return u->currentDestination.tile == 0 ? 0 : 1;
case 0x0C: return u->fireDelay == 0 ? 1 : 0;
case 0x0D: return ui->flags.explodeOnDeath;
case 0x0E: return Unit_GetHouseID(u);
case 0x0F: return u->o.flags.s.byScenario ? 1 : 0;
case 0x10: return u->orientation[ui->o.flags.hasTurret ? 1 : 0].current;
case 0x11: return abs(u->orientation[ui->o.flags.hasTurret ? 1 : 0].target - u->orientation[ui->o.flags.hasTurret ? 1 : 0].current);
case 0x12: return (ui->movementType & 0x40) == 0 ? 0 : 1;
case 0x13: return (u->o.seenByHouses & (1 << g_playerHouseID)) == 0 ? 0 : 1;
default: return 0;
}
}
/**
* Check if the given tile is a valid destination. In case of for example
* a carry-all it checks if the unit carrying can be placed on destination.
* In case of structures, it checks if you can walk into it.
*
* Stack: 1 - An encoded tile, indicating the destination.
*
* @param script The script engine to operate on.
* @return ??.
*/
uint16 Script_Unit_IsValidDestination(ScriptEngine *script)
{
Unit *u;
Unit *u2;
uint16 encoded;
uint16 index;
u = g_scriptCurrentUnit;
encoded = STACK_PEEK(1);
index = Tools_Index_Decode(encoded);
switch (Tools_Index_GetType(encoded)) {
case IT_TILE:
if (!Map_IsValidPosition(index)) return 1;
if (u->o.linkedID == 0xFF) return 1;
u2 = Unit_Get_ByIndex(u->o.linkedID);
u2->o.position = Tools_Index_GetTile(encoded);
if (!Unit_IsTileOccupied(u2)) return 0;
u2->o.position.tile = 0xFFFFFFFF;
return 1;
case IT_STRUCTURE: {
Structure *s;
s = Structure_Get_ByIndex(index);
if (s->o.houseID == Unit_GetHouseID(u)) return 0;
if (u->o.linkedID == 0xFF) return 1;
u2 = Unit_Get_ByIndex(u->o.linkedID);
return Unit_IsValidMovementIntoStructure(u2, s) != 0 ? 1 : 0;
}
default: return 1;
}
}
/**
* Finds a structure.
*
* Stack: 1 - A structure type.
*
* @param script The script engine to operate on.
* @return An encoded structure index, or 0 if none found.
*/
uint16 Script_Unit_FindStructure(ScriptEngine *script)
{
Unit *u;
PoolFindStruct find;
u = g_scriptCurrentUnit;
find.houseID = Unit_GetHouseID(u);
find.index = 0xFFFF;
find.type = STACK_PEEK(1);
while (true) {
Structure *s;
s = Structure_Find(&find);
if (s == NULL) break;
if (s->state != STRUCTURE_STATE_IDLE) continue;
if (s->o.linkedID != 0xFF) continue;
if (s->o.script.variables[4] != 0) continue;
return Tools_Index_Encode(s->o.index, IT_STRUCTURE);
}
return 0;
}
/**
* Move the unit to the first available structure it can find of the required
* type.
*
* Stack: 1 - Type of structure.
*
* @param script The script engine to operate on.
* @return An encoded structure index.
*/
uint16 Script_Unit_MoveToStructure(ScriptEngine *script)
{
Unit *u;
PoolFindStruct find;
u = g_scriptCurrentUnit;
if (u->o.linkedID != 0xFF) {
Structure *s;
s = Tools_Index_GetStructure(Unit_Get_ByIndex(u->o.linkedID)->originEncoded);
if (s != NULL && s->state == STRUCTURE_STATE_IDLE && s->o.script.variables[4] == 0) {
uint16 encoded;
encoded = Tools_Index_Encode(s->o.index, IT_STRUCTURE);
Object_Script_Variable4_Link(Tools_Index_Encode(u->o.index, IT_UNIT), encoded);
u->targetMove = u->o.script.variables[4];
return encoded;
}
}
find.houseID = Unit_GetHouseID(u);
find.index = 0xFFFF;
find.type = STACK_PEEK(1);
while (true) {
Structure *s;
uint16 encoded;
s = Structure_Find(&find);
if (s == NULL) break;
if (s->state != STRUCTURE_STATE_IDLE) continue;
if (s->o.script.variables[4] != 0) continue;
encoded = Tools_Index_Encode(s->o.index, IT_STRUCTURE);
Object_Script_Variable4_Link(Tools_Index_Encode(u->o.index, IT_UNIT), encoded);
u->targetMove = encoded;
return encoded;
}
return 0;
}
/**
* Find a Unit which is within range and not an ally.
*
* Stack: 1 - Range to find a target in (amount of tiles multiplied with 256).
*
* @param script The script engine to operate on.
* @return The Unit Index of the closest unit within range and not friendly,
* or 0 if none exists.
*/
uint16 Script_Structure_FindTargetUnit(ScriptEngine *script)
{
PoolFindStruct find;
Structure *s;
Unit *u;
uint32 distanceCurrent;
uint32 targetRange;
s = g_scriptCurrentStructure;
targetRange = STACK_PEEK(1);
distanceCurrent = 32000;
u = NULL;
find.houseID = HOUSE_INVALID;
find.index = 0xFFFF;
find.type = 0xFFFF;
while (true) {
uint16 distance;
Unit *uf;
uf = Unit_Find(&find);
if (uf == NULL) break;
if (House_AreAllied(s->o.houseID, Unit_GetHouseID(uf))) continue;
if (uf->o.type != UNIT_ORNITHOPTER) {
if ((uf->o.seenByHouses & (1 << s->o.houseID)) == 0) continue;
}
distance = Tile_GetDistance(uf->o.position, s->o.position);
if (distance >= distanceCurrent) continue;
if (uf->o.type == UNIT_ORNITHOPTER) {
if (distance >= targetRange * 3) continue;
} else {
if (distance >= targetRange) continue;
}
/* ENHANCEMENT -- The original code swapped the assignment, making it do nothing, Now it finds the closest unit to shoot at, what seems to be the intention */
if (g_dune2_enhanced) distanceCurrent = distance;
u = uf;
}
if (u == NULL) return IT_NONE;
return Tools_Index_Encode(u->o.index, IT_UNIT);
}
/**
* Displays the "XXX XXX destroyed." message for the current unit.
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return The value 0. Always.
*/
uint16 Script_Unit_DisplayDestroyedText(ScriptEngine *script)
{
const UnitInfo *ui;
Unit *u;
VARIABLE_NOT_USED(script);
u = g_scriptCurrentUnit;
ui = &g_table_unitInfo[u->o.type];
if (g_config.language == LANGUAGE_FRENCH) {
GUI_DisplayText(String_Get_ByIndex(STR_S_S_DESTROYED), 0, String_Get_ByIndex(ui->o.stringID_abbrev), g_table_houseInfo[Unit_GetHouseID(u)].name);
} else {
GUI_DisplayText(String_Get_ByIndex(STR_S_S_DESTROYED), 0, g_table_houseInfo[Unit_GetHouseID(u)].name, String_Get_ByIndex(ui->o.stringID_abbrev));
}
return 0;
}
/**
* Find the first matching Unit based on the PoolFindStruct filter data.
*
* @param find A pointer to a PoolFindStruct which contains filter data and
* last known tried index. Calling this functions multiple times with the
* same 'find' parameter walks over all possible values matching the filter.
* @return The Unit, or NULL if nothing matches (anymore).
*/
Unit *Unit_Find(PoolFindStruct *find)
{
if (find->index >= g_unitFindCount && find->index != 0xFFFF) return NULL;
find->index++; /* First, we always go to the next index */
for (; find->index < g_unitFindCount; find->index++) {
Unit *u = g_unitFindArray[find->index];
if (u == NULL) continue;
if (u->o.flags.s.isNotOnMap && g_var_38BC == 0) continue;
if (find->houseID != HOUSE_INVALID && find->houseID != Unit_GetHouseID(u)) continue;
if (find->type != UNIT_INDEX_INVALID && find->type != u->o.type) continue;
return u;
}
return NULL;
}
/**
* Makes the current unit to go to the closest structure of the given type.
*
* Stack: 1 - The type of the structure.
*
* @param script The script engine to operate on.
* @return The value 1 if and only if a structure has been found.
*/
uint16 Script_Unit_GoToClosestStructure(ScriptEngine *script)
{
Unit *u;
Structure *s = NULL;
PoolFindStruct find;
uint16 distanceMin =0;
u = g_scriptCurrentUnit;
find.houseID = Unit_GetHouseID(u);
find.index = 0xFFFF;
find.type = STACK_PEEK(1);
while (true) {
Structure *s2;
uint16 distance;
s2 = Structure_Find(&find);
if (s2 == NULL) break;
if (s2->state != STRUCTURE_STATE_IDLE) continue;
if (s2->o.linkedID != 0xFF) continue;
if (s2->o.script.variables[4] != 0) continue;
distance = Tile_GetDistanceRoundedUp(s2->o.position, u->o.position);
if (distance >= distanceMin && distanceMin != 0) continue;
distanceMin = distance;
s = s2;
}
if (s == NULL) return 0;
Unit_SetAction(u, ACTION_MOVE);
Unit_SetDestination(u, Tools_Index_Encode(s->o.index, IT_STRUCTURE));
return 1;
}
/**
* Call a UnitType and make it go to the current unit. In general, type should
* be a Carry-All for this to make any sense.
*
* Stack: 1 - An unit type.
*
* @param script The script engine to operate on.
* @return An encoded unit index.
*/
uint16 Script_Unit_CallUnitByType(ScriptEngine *script)
{
Unit *u;
Unit *u2;
uint16 encoded;
uint16 encoded2;
u = g_scriptCurrentUnit;
if (u->o.script.variables[4] != 0) return u->o.script.variables[4];
if (!g_table_unitInfo[u->o.type].o.flags.canBePickedUp || u->deviated != 0) return 0;
encoded = Tools_Index_Encode(u->o.index, IT_UNIT);
u2 = Unit_CallUnitByType(STACK_PEEK(1), Unit_GetHouseID(u), encoded, false);
if (u2 == NULL) return 0;
encoded2 = Tools_Index_Encode(u2->o.index, IT_UNIT);
Object_Script_Variable4_Link(encoded, encoded2);
u2->targetMove = encoded;
return encoded2;
}
/**
* Handles Click event for unit commands button.
*
* @param w The widget.
* @return True, always.
*/
bool GUI_Widget_TextButton_Click(Widget *w)
{
const UnitInfo *ui;
const ActionInfo *ai;
const uint16 *actions;
ActionType action;
Unit *u;
uint16 *found;
ActionType unitAction;
u = g_unitSelected;
ui = &g_table_unitInfo[u->o.type];
actions = ui->o.actionsPlayer;
if (Unit_GetHouseID(u) != g_playerHouseID && u->o.type != UNIT_HARVESTER) {
actions = g_table_actionsAI;
}
action = actions[w->index - 8];
unitAction = u->nextActionID;
if (unitAction == ACTION_INVALID) {
unitAction = u->actionID;
}
if (u->deviated != 0) {
Unit_Deviation_Decrease(u, 5);
if (u->deviated == 0) {
GUI_Widget_MakeNormal(w, false);
return true;
}
}
GUI_Widget_MakeSelected(w, false);
ai = &g_table_actionInfo[action];
if (ai->selectionType != g_selectionType) {
g_unitActive = g_unitSelected;
g_activeAction = action;
GUI_ChangeSelectionType(ai->selectionType);
return true;
}
Object_Script_Variable4_Clear(&u->o);
u->targetAttack = 0;
u->targetMove = 0;
u->route[0] = 0xFF;
Unit_SetAction(u, action);
if (ui->movementType == MOVEMENT_FOOT) Sound_StartSound(ai->soundID);
if (unitAction == action) return true;
found = memchr(actions, unitAction, 4);
if (found == NULL) return true;
GUI_Widget_MakeNormal(GUI_Widget_Get_ByIndex(g_widgetLinkedListHead, found - actions + 8), false);
return true;
}
/**
* 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;
}
/**
* Pickup a unit (either from structure or on the map). The unit that does the
* picking up returns the unit to his last position.
*
* Stack: *none*.
*
* @param script The script engine to operate on.
* @return The value 0. Always.
*/
uint16 Script_Unit_Pickup(ScriptEngine *script)
{
Unit *u;
VARIABLE_NOT_USED(script);
u = g_scriptCurrentUnit;
if (u->o.linkedID != 0xFF) return 0;
switch (Tools_Index_GetType(u->targetMove)) {
case IT_STRUCTURE: {
Structure *s;
Unit *u2;
s = Tools_Index_GetStructure(u->targetMove);
/* There was nothing to pickup here */
if (s->state != STRUCTURE_STATE_READY) {
Object_Script_Variable4_Clear(&u->o);
u->targetMove = 0;
return 0;
}
u->o.flags.s.inTransport = true;
Object_Script_Variable4_Clear(&u->o);
u->targetMove = 0;
u2 = Unit_Get_ByIndex(s->o.linkedID);
/* Pickup the unit */
u->o.linkedID = u2->o.index & 0xFF;
s->o.linkedID = u2->o.linkedID;
u2->o.linkedID = 0xFF;
if (s->o.linkedID == 0xFF) Structure_SetState(s, STRUCTURE_STATE_IDLE);
/* Check if the unit has a return-to position or try to find spice in case of a harvester */
if (u2->targetLast.tile != 0) {
u->targetMove = Tools_Index_Encode(Tile_PackTile(u2->targetLast), IT_TILE);
} else if (u2->o.type == UNIT_HARVESTER && Unit_GetHouseID(u2) != g_playerHouseID) {
u->targetMove = Tools_Index_Encode(Map_SearchSpice(Tile_PackTile(u->o.position), 20), IT_TILE);
}
Unit_UpdateMap(2, u);
return 1;
}
case IT_UNIT: {
Unit *u2;
Structure *s = NULL;
PoolFindStruct find;
int16 minDistance = 0;
u2 = Tools_Index_GetUnit(u->targetMove);
if (!u2->o.flags.s.allocated) return 0;
find.houseID = Unit_GetHouseID(u);
find.index = 0xFFFF;
find.type = 0xFFFF;
/* Find closest refinery / repair station */
while (true) {
Structure *s2;
int16 distance;
s2 = Structure_Find(&find);
if (s2 == NULL) break;
distance = Tile_GetDistanceRoundedUp(s2->o.position, u->o.position);
if (u2->o.type == UNIT_HARVESTER) {
if (s2->o.type != STRUCTURE_REFINERY || s2->state != STRUCTURE_STATE_IDLE || s2->o.script.variables[4] != 0) continue;
if (minDistance != 0 && distance >= minDistance) break;
minDistance = distance;
s = s2;
break;
}
if (s2->o.type != STRUCTURE_REPAIR || s2->state != STRUCTURE_STATE_IDLE || s2->o.script.variables[4] != 0) continue;
if (minDistance != 0 && distance >= minDistance) continue;
minDistance = distance;
s = s2;
}
if (s == NULL) return 0;
/* Deselect the unit as it is about to be picked up */
if (u2 == g_unitSelected) Unit_Select(NULL);
/* Pickup the unit */
u->o.linkedID = u2->o.index & 0xFF;
u->o.flags.s.inTransport = true;
Unit_UpdateMap(0, u2);
Unit_Hide(u2);
/* Set where we are going to */
Object_Script_Variable4_Link(Tools_Index_Encode(u->o.index, IT_UNIT), Tools_Index_Encode(s->o.index, IT_STRUCTURE));
u->targetMove = u->o.script.variables[4];
Unit_UpdateMap(2, u);
if (u2->o.type != UNIT_HARVESTER) return 0;
/* Check if we want to return to this spice field later */
if (Map_SearchSpice(Tile_PackTile(u2->o.position), 2) == 0) {
u2->targetPreLast.tile = 0;
u2->targetLast.tile = 0;
}
return 0;
}
default: return 0;
}
}
/**
* Draw a single tile on the screen.
*
* @param packed The tile to draw.
*/
void GUI_Widget_Viewport_DrawTile(uint16 packed)
{
uint16 x;
uint16 y;
uint16 colour;
uint16 spriteID;
Tile *t;
uint16 mapScale;
colour = 12;
spriteID = 0xFFFF;
if (Tile_IsOutOfMap(packed) || !Map_IsValidPosition(packed)) return;
x = Tile_GetPackedX(packed);
y = Tile_GetPackedY(packed);
mapScale = g_scenario.mapScale + 1;
if (mapScale == 0 || BitArray_Test(g_displayedMinimap, packed)) return;
t = &g_map[packed];
if ((t->isUnveiled && g_playerHouse->flags.radarActivated) || g_debugScenario) {
uint16 type = Map_GetLandscapeType(packed);
Unit *u;
if (mapScale > 1) {
spriteID = g_scenario.mapScale + g_table_landscapeInfo[type].spriteID - 1;
} else {
colour = g_table_landscapeInfo[type].radarColour;
}
if (g_table_landscapeInfo[type].radarColour == 0xFFFF) {
if (mapScale > 1) {
spriteID = mapScale + t->houseID * 2 + 29;
} else {
colour = g_table_houseInfo[t->houseID].minimapColor;
}
}
u = Unit_Get_ByPackedTile(packed);
if (u != NULL) {
if (mapScale > 1) {
if (u->o.type == UNIT_SANDWORM) {
spriteID = mapScale + 53;
} else {
spriteID = mapScale + Unit_GetHouseID(u) * 2 + 29;
}
} else {
if (u->o.type == UNIT_SANDWORM) {
colour = 255;
} else {
colour = g_table_houseInfo[Unit_GetHouseID(u)].minimapColor;
}
}
}
} else {
Structure *s;
s = Structure_Get_ByPackedTile(packed);
if (s != NULL && s->o.houseID == g_playerHouseID) {
if (mapScale > 1) {
spriteID = mapScale + s->o.houseID * 2 + 29;
} else {
colour = g_table_houseInfo[s->o.houseID].minimapColor;
}
} else {
if (mapScale > 1) {
spriteID = g_scenario.mapScale + g_table_landscapeInfo[LST_ENTIRELY_MOUNTAIN].spriteID - 1;
} else {
colour = 12;
}
}
}
x -= g_mapInfos[g_scenario.mapScale].minX;
y -= g_mapInfos[g_scenario.mapScale].minY;
if (spriteID != 0xFFFF) {
x *= g_scenario.mapScale + 1;
y *= g_scenario.mapScale + 1;
GUI_DrawSprite(g_screenActiveID, g_sprites[spriteID], x, y, 3, 0x4000);
} else {
GFX_PutPixel(x + 256, y + 136, colour & 0xFF);
}
}
/**
* Redraw parts of the viewport that require redrawing.
*
* @param forceRedraw If true, dirty flags are ignored, and everything is drawn.
* @param arg08 ??
* @param drawToMainScreen True if and only if we are drawing to the main screen and not some buffer screen.
*/
void GUI_Widget_Viewport_Draw(bool forceRedraw, bool arg08, bool drawToMainScreen)
{
static const uint16 values_32A4[8][2] = {
{0, 0}, {1, 0}, {2, 0}, {3, 0},
{4, 0}, {3, 1}, {2, 1}, {1, 1}
};
uint16 x;
uint16 y;
uint16 i;
uint16 curPos;
bool updateDisplay;
Screen oldScreenID;
uint16 oldValue_07AE_0000;
int16 minX[10];
int16 maxX[10];
PoolFindStruct find;
updateDisplay = forceRedraw;
memset(minX, 0xF, sizeof(minX));
memset(maxX, 0, sizeof(minX));
oldScreenID = GFX_Screen_SetActive(SCREEN_1);
oldValue_07AE_0000 = Widget_SetCurrentWidget(2);
if (g_dirtyViewportCount != 0 || forceRedraw) {
for (y = 0; y < 10; y++) {
uint16 top = (y << 4) + 0x28;
for (x = 0; x < (drawToMainScreen ? 15 : 16); x++) {
Tile *t;
uint16 left;
curPos = g_viewportPosition + Tile_PackXY(x, y);
if (x < 15 && !forceRedraw && BitArray_Test(g_dirtyViewport, curPos)) {
if (maxX[y] < x) maxX[y] = x;
if (minX[y] > x) minX[y] = x;
updateDisplay = true;
}
if (!BitArray_Test(g_dirtyMinimap, curPos) && !forceRedraw) continue;
BitArray_Set(g_dirtyViewport, curPos);
if (x < 15) {
updateDisplay = true;
if (maxX[y] < x) maxX[y] = x;
if (minX[y] > x) minX[y] = x;
}
t = &g_map[curPos];
left = x << 4;
if (!g_debugScenario && g_veiledSpriteID == t->overlaySpriteID) {
GUI_DrawFilledRectangle(left, top, left + 15, top + 15, 12);
continue;
}
GFX_DrawSprite(t->groundSpriteID, left, top, t->houseID);
if (t->overlaySpriteID == 0 || g_debugScenario) continue;
GFX_DrawSprite(t->overlaySpriteID, left, top, t->houseID);
}
}
g_dirtyViewportCount = 0;
}
find.type = UNIT_SANDWORM;
find.index = 0xFFFF;
find.houseID = HOUSE_INVALID;
while (true) {
Unit *u;
uint8 *sprite;
u = Unit_Find(&find);
if (u == NULL) break;
if (!u->o.flags.s.isDirty && !forceRedraw) continue;
u->o.flags.s.isDirty = false;
if (!g_map[Tile_PackTile(u->o.position)].isUnveiled && !g_debugScenario) continue;
sprite = GUI_Widget_Viewport_Draw_GetSprite(g_table_unitInfo[u->o.type].groundSpriteID, Unit_GetHouseID(u));
s_spriteFlags = 0x200;
if (Map_IsPositionInViewport(u->o.position, &x, &y)) GUI_DrawSprite(g_screenActiveID, sprite, x, y, 2, s_spriteFlags | 0xC000);
if (Map_IsPositionInViewport(u->targetLast, &x, &y)) GUI_DrawSprite(g_screenActiveID, sprite, x, y, 2, s_spriteFlags | 0xC000);
if (Map_IsPositionInViewport(u->targetPreLast, &x, &y)) GUI_DrawSprite(g_screenActiveID, sprite, x, y, 2, s_spriteFlags | 0xC000);
if (u != g_unitSelected) continue;
if (!Map_IsPositionInViewport(u->o.position, &x, &y)) continue;
GUI_DrawSprite(g_screenActiveID, g_sprites[6], x, y, 2, 0xC000);
}
if (g_unitSelected == NULL && (g_var_3A08 != 0 || arg08) && (Structure_Get_ByPackedTile(g_selectionRectanglePosition) != NULL || g_selectionType == SELECTIONTYPE_PLACE || g_debugScenario)) {
uint16 x1 = (Tile_GetPackedX(g_selectionRectanglePosition) - Tile_GetPackedX(g_minimapPosition)) << 4;
uint16 y1 = ((Tile_GetPackedY(g_selectionRectanglePosition) - Tile_GetPackedY(g_minimapPosition)) << 4) + 0x28;
uint16 x2 = x1 + (g_selectionWidth << 4) - 1;
uint16 y2 = y1 + (g_selectionHeight << 4) - 1;
GUI_SetClippingArea(0, 40, 239, SCREEN_HEIGHT - 1);
GUI_DrawWiredRectangle(x1, y1, x2, y2, 0xFF);
if (g_selectionState == 0 && g_selectionType == SELECTIONTYPE_PLACE) {
GUI_DrawLine(x1, y1, x2, y2, 0xFF);
GUI_DrawLine(x2, y1, x1, y2, 0xFF);
}
GUI_SetClippingArea(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
g_var_3A08 = 0;
}
if (g_dirtyUnitCount != 0 || forceRedraw || updateDisplay) {
find.type = 0xFFFF;
find.index = 0xFFFF;
find.houseID = HOUSE_INVALID;
while (true) {
Unit *u;
UnitInfo *ui;
uint16 packed;
uint8 orientation;
uint16 index;
u = Unit_Find(&find);
if (u == NULL) break;
if (u->o.index < 20 || u->o.index > 101) continue;
packed = Tile_PackTile(u->o.position);
if ((!u->o.flags.s.isDirty || u->o.flags.s.isNotOnMap) && !forceRedraw && !BitArray_Test(g_dirtyViewport, packed)) continue;
u->o.flags.s.isDirty = false;
if (!g_map[packed].isUnveiled && !g_debugScenario) continue;
ui = &g_table_unitInfo[u->o.type];
if (!Map_IsPositionInViewport(u->o.position, &x, &y)) continue;
x += g_table_tilediff[0][u->wobbleIndex].x;
y += g_table_tilediff[0][u->wobbleIndex].y;
orientation = Orientation_Orientation256ToOrientation8(u->orientation[0].current);
if (u->spriteOffset >= 0 || ui->destroyedSpriteID == 0) {
static const uint16 values_32C4[8][2] = {
{0, 0}, {1, 0}, {1, 0}, {1, 0},
{2, 0}, {1, 1}, {1, 1}, {1, 1}
};
index = ui->groundSpriteID;
switch (ui->displayMode) {
case DISPLAYMODE_UNIT:
case DISPLAYMODE_ROCKET:
if (ui->movementType == MOVEMENT_SLITHER) break;
index += values_32A4[orientation][0];
s_spriteFlags = values_32A4[orientation][1];
break;
case DISPLAYMODE_INFANTRY_3_FRAMES: {
static const uint16 values_334A[4] = {0, 1, 0, 2};
index += values_32C4[orientation][0] * 3;
index += values_334A[u->spriteOffset & 3];
s_spriteFlags = values_32C4[orientation][1];
} break;
case DISPLAYMODE_INFANTRY_4_FRAMES:
index += values_32C4[orientation][0] * 4;
index += u->spriteOffset & 3;
s_spriteFlags = values_32C4[orientation][1];
break;
default:
s_spriteFlags = 0;
break;
}
} else {
index = ui->destroyedSpriteID - u->spriteOffset - 1;
s_spriteFlags = 0;
}
if (u->o.type != UNIT_SANDWORM && u->o.flags.s.isHighlighted) s_spriteFlags |= 0x100;
if (ui->o.flags.blurTile) s_spriteFlags |= 0x200;
GUI_DrawSprite(g_screenActiveID, GUI_Widget_Viewport_Draw_GetSprite(index, (u->deviated != 0) ? u->deviatedHouse : Unit_GetHouseID(u)), x, y, 2, s_spriteFlags | 0xE000, s_paletteHouse, g_paletteMapping2, 1);
if (u->o.type == UNIT_HARVESTER && u->actionID == ACTION_HARVEST && u->spriteOffset >= 0 && (u->actionID == ACTION_HARVEST || u->actionID == ACTION_MOVE)) {
uint16 type = Map_GetLandscapeType(packed);
if (type == LST_SPICE || type == LST_THICK_SPICE) {
static const int16 values_334E[8][2] = {
{0, 7}, {-7, 6}, {-14, 1}, {-9, -6},
{0, -9}, { 9, -6}, { 14, 1}, { 7, 6}
};
GUI_DrawSprite(g_screenActiveID, GUI_Widget_Viewport_Draw_GetSprite((u->spriteOffset % 3) + 0xDF + (values_32A4[orientation][0] * 3), Unit_GetHouseID(u)), x + values_334E[orientation][0], y + values_334E[orientation][1], 2, values_32A4[orientation][1] | 0xC000);
}
}
if (u->spriteOffset >= 0 && ui->turretSpriteID != 0xFFFF) {
int16 offsetX = 0;
int16 offsetY = 0;
uint16 spriteID = ui->turretSpriteID;
orientation = Orientation_Orientation256ToOrientation8(u->orientation[ui->o.flags.hasTurret ? 1 : 0].current);
switch (ui->turretSpriteID) {
case 0x8D: /* sonic tank */
offsetY = -2;
break;
case 0x92: /* rocket launcher */
offsetY = -3;
break;
case 0x7E: { /* siege tank */
static const int16 values_336E[8][2] = {
{ 0, -5}, { 0, -5}, { 2, -3}, { 2, -1},
{-1, -3}, {-2, -1}, {-2, -3}, {-1, -5}
};
offsetX = values_336E[orientation][0];
offsetY = values_336E[orientation][1];
} break;
case 0x88: { /* devastator */
static const int16 values_338E[8][2] = {
{ 0, -4}, {-1, -3}, { 2, -4}, {0, -3},
{-1, -3}, { 0, -3}, {-2, -4}, {1, -3}
};
offsetX = values_338E[orientation][0];
offsetY = values_338E[orientation][1];
} break;
default:
break;
}
s_spriteFlags = values_32A4[orientation][1];
spriteID += values_32A4[orientation][0];
GUI_DrawSprite(g_screenActiveID, GUI_Widget_Viewport_Draw_GetSprite(spriteID, Unit_GetHouseID(u)), x + offsetX, y + offsetY, 2, s_spriteFlags | 0xE000, s_paletteHouse);
}
if (u->o.flags.s.isSmoking) {
uint16 spriteID = 180 + (u->spriteOffset & 3);
if (spriteID == 183) spriteID = 181;
GUI_DrawSprite(g_screenActiveID, g_sprites[spriteID], x, y - 14, 2, 0xC000);
}
if (u != g_unitSelected) continue;
GUI_DrawSprite(g_screenActiveID, g_sprites[6], x, y, 2, 0xC000);
}
g_dirtyUnitCount = 0;
}
for (i = 0; i < EXPLOSION_MAX; i++) {
Explosion *e = Explosion_Get_ByIndex(i);
curPos = Tile_PackTile(e->position);
if (BitArray_Test(g_dirtyViewport, curPos)) e->isDirty = true;
if (e->commands == NULL) continue;
if (!e->isDirty && !forceRedraw) continue;
if (e->spriteID == 0) continue;
e->isDirty = false;
if (!g_map[curPos].isUnveiled && !g_debugScenario) continue;
if (!Map_IsPositionInViewport(e->position, &x, &y)) continue;
s_spriteFlags = 0xC000;
GUI_DrawSprite(g_screenActiveID, GUI_Widget_Viewport_Draw_GetSprite(e->spriteID, e->houseID), x, y, 2, s_spriteFlags, s_paletteHouse);
}
if (g_dirtyAirUnitCount != 0 || forceRedraw || updateDisplay) {
find.type = 0xFFFF;
find.index = 0xFFFF;
find.houseID = HOUSE_INVALID;
while (true) {
static const uint16 values_32E4[8][2] = {
{0, 0}, {1, 0}, {2, 0}, {1, 2},
{0, 2}, {1, 3}, {2, 1}, {1, 1}
};
Unit *u;
UnitInfo *ui;
uint8 orientation;
uint8 *sprite;
uint16 index;
u = Unit_Find(&find);
if (u == NULL) break;
if (u->o.index > 15) continue;
curPos = Tile_PackTile(u->o.position);
if ((!u->o.flags.s.isDirty || u->o.flags.s.isNotOnMap) && !forceRedraw && !BitArray_Test(g_dirtyViewport, curPos)) continue;
u->o.flags.s.isDirty = false;
if (!g_map[curPos].isUnveiled && !g_debugScenario) continue;
ui = &g_table_unitInfo[u->o.type];
if (!Map_IsPositionInViewport(u->o.position, &x, &y)) continue;
index = ui->groundSpriteID;
orientation = u->orientation[0].current;
s_spriteFlags = 0xC000;
switch (ui->displayMode) {
case DISPLAYMODE_SINGLE_FRAME:
if (u->o.flags.s.bulletIsBig) index++;
break;
case DISPLAYMODE_UNIT:
orientation = Orientation_Orientation256ToOrientation8(orientation);
index += values_32E4[orientation][0];
s_spriteFlags |= values_32E4[orientation][1];
break;
case DISPLAYMODE_ROCKET: {
static const uint16 values_3304[16][2] = {
{0, 0}, {1, 0}, {2, 0}, {3, 0},
{4, 0}, {3, 2}, {2, 2}, {1, 2},
{0, 2}, {3, 3}, {2, 3}, {3, 3},
{4, 1}, {3, 1}, {2, 1}, {1, 1}
};
orientation = Orientation_Orientation256ToOrientation16(orientation);
index += values_3304[orientation][0];
s_spriteFlags |= values_3304[orientation][1];
} break;
case DISPLAYMODE_ORNITHOPTER: {
static const uint16 values_33AE[4] = {2, 1, 0, 1};
orientation = Orientation_Orientation256ToOrientation8(orientation);
index += (values_32E4[orientation][0] * 3) + values_33AE[u->spriteOffset & 3];
s_spriteFlags |= values_32E4[orientation][1];
} break;
default:
s_spriteFlags = 0x0;
break;
}
if (ui->flags.hasAnimationSet && u->o.flags.s.animationFlip) index += 5;
if (u->o.type == UNIT_CARRYALL && u->o.flags.s.inTransport) index += 3;
sprite = GUI_Widget_Viewport_Draw_GetSprite(index, Unit_GetHouseID(u));
if (ui->o.flags.hasShadow) GUI_DrawSprite(g_screenActiveID, sprite, x + 1, y + 3, 2, (s_spriteFlags & 0xDFFF) | 0x300, g_paletteMapping1, 1);
if (ui->o.flags.blurTile) s_spriteFlags |= 0x200;
GUI_DrawSprite(g_screenActiveID, sprite, x, y, 2, s_spriteFlags | 0x2000, s_paletteHouse);
}
g_dirtyAirUnitCount = 0;
}
if (updateDisplay) {
memset(g_dirtyMinimap, 0, sizeof(g_dirtyMinimap));
memset(g_dirtyViewport, 0, sizeof(g_dirtyViewport));
}
if (g_changedTilesCount != 0) {
bool init = false;
bool update = false;
Screen oldScreenID2 = SCREEN_1;
for (i = 0; i < g_changedTilesCount; i++) {
curPos = g_changedTiles[i];
BitArray_Clear(g_changedTilesMap, curPos);
if (!init) {
init = true;
oldScreenID2 = GFX_Screen_SetActive(SCREEN_1);
GUI_Mouse_Hide_InWidget(3);
}
GUI_Widget_Viewport_DrawTile(curPos);
if (!update && BitArray_Test(g_displayedMinimap, curPos)) update = true;
}
if (update) Map_UpdateMinimapPosition(g_minimapPosition, true);
if (init) {
GUI_Screen_Copy(32, 136, 32, 136, 8, 64, g_screenActiveID, SCREEN_0);
GFX_Screen_SetActive(oldScreenID2);
GUI_Mouse_Show_InWidget();
}
if (g_changedTilesCount == lengthof(g_changedTiles)) {
g_changedTilesCount = 0;
for (i = 0; i < 4096; i++) {
if (!BitArray_Test(g_changedTilesMap, i)) continue;
g_changedTiles[g_changedTilesCount++] = i;
if (g_changedTilesCount == lengthof(g_changedTiles)) break;
}
} else {
g_changedTilesCount = 0;
}
}
if ((g_viewportMessageCounter & 1) != 0 && g_viewportMessageText != NULL && (minX[6] <= 14 || maxX[6] >= 0 || arg08 || forceRedraw)) {
GUI_DrawText_Wrapper(g_viewportMessageText, 112, 139, 15, 0, 0x132);
minX[6] = -1;
maxX[6] = 14;
}
if (updateDisplay && !drawToMainScreen) {
if (g_viewport_fadein) {
GUI_Mouse_Hide_InWidget(g_curWidgetIndex);
/* ENHANCEMENT -- When fading in the game on start, you don't see the fade as it is against the already drawn screen. */
if (g_dune2_enhanced) {
Screen oldScreenID2 = g_screenActiveID;
GFX_Screen_SetActive(SCREEN_0);
GUI_DrawFilledRectangle(g_curWidgetXBase << 3, g_curWidgetYBase, (g_curWidgetXBase + g_curWidgetWidth) << 3, g_curWidgetYBase + g_curWidgetHeight, 0);
GFX_Screen_SetActive(oldScreenID2);
}
GUI_Screen_FadeIn(g_curWidgetXBase, g_curWidgetYBase, g_curWidgetXBase, g_curWidgetYBase, g_curWidgetWidth, g_curWidgetHeight, g_screenActiveID, SCREEN_0);
GUI_Mouse_Show_InWidget();
g_viewport_fadein = false;
} else {
bool init = false;
for (i = 0; i < 10; i++) {
uint16 width;
uint16 height;
if (arg08) {
minX[i] = 0;
maxX[i] = 14;
}
if (maxX[i] < minX[i]) continue;
x = minX[i] * 2;
y = (i << 4) + 0x28;
width = (maxX[i] - minX[i] + 1) * 2;
height = 16;
if (!init) {
GUI_Mouse_Hide_InWidget(g_curWidgetIndex);
init = true;
}
GUI_Screen_Copy(x, y, x, y, width, height, g_screenActiveID, SCREEN_0);
}
if (init) GUI_Mouse_Show_InWidget();
}
}
GFX_Screen_SetActive(oldScreenID);
Widget_SetCurrentWidget(oldValue_07AE_0000);
}
