/*
* DrawMountainSlope
*
* Draw the mountains in the background of the game.
*/
void DrawMountainSlope (GdkPixmap *pixmap,
typPoint *lastPt,
typPoint *pt,
int nTop,
int nBottom)
{
int x1;
int x2;
int nStart;
int nEnd;
int nHeight;
nHeight = nBottom - nTop;
nStart = hero->x - (nScreenWidth / 2);
nEnd = hero->x + (nScreenWidth / 2);
x1 = ScreenX (lastPt->x);
x2 = ScreenX (pt->x);
if ((x2 < 0) ||
(x1 > nScreenWidth)) {
/* --- Do nothing --- */
} else {
/* --- Draw point --- */
gdk_draw_line (pixmap, penWhite,
ScreenX (lastPt->x),
(int) (nBottom - ((lastPt->y * nHeight) / MAX_PEAK)),
ScreenX (pt->x),
(int) (nBottom - ((pt->y * nHeight) / MAX_PEAK)));
}
}
NS_IMETHODIMP
MouseEvent::GetScreenX(int32_t* aScreenX)
{
NS_ENSURE_ARG_POINTER(aScreenX);
*aScreenX = ScreenX();
return NS_OK;
}
void
ChartRenderer::DrawXGrid(double tic_step, const Pen &pen,
double unit_step, bool draw_units)
{
assert(tic_step > 0);
canvas.Select(pen);
canvas.Select(look.axis_value_font);
canvas.SetBackgroundTransparent();
RasterPoint line[2];
/** the minimum next position of the text, to avoid overlapping */
int next_text = rc.left;
/* increase tic step so graph not too crowded */
while ((x.max - x.min) / tic_step > 10) {
tic_step *= 2;
unit_step *= 2;
}
// bool do_units = ((x.max-zero)/tic_step)<10;
line[0].y = rc.top;
line[1].y = rc.bottom - padding_bottom;
const int y = line[1].y - canvas.GetFontHeight();
auto start = (int)(x.min / tic_step) * tic_step;
for (auto xval = start; xval <= x.max; xval += tic_step) {
const int xmin = ScreenX(xval);
line[0].x = line[1].x = xmin;
// STYLE_THINDASHPAPER
if (xmin >= rc.left + padding_left && xmin <= rc.right) {
canvas.DrawLine(line[0], line[1]);
if (draw_units && xmin >= next_text) {
TCHAR unit_text[MAX_PATH];
FormatTicText(unit_text, xval * unit_step / tic_step, unit_step);
canvas.DrawText(xmin, y, unit_text);
next_text = xmin + canvas.CalcTextSize(unit_text).cx
+ Layout::GetTextPadding();
}
}
}
}
/*
* DisplayOtherUnits
*
* Display all the units on the screen. First, we need
* to move each of the units to their new positions.
* Some of this is done in the AI module.
*
*/
void DisplayOtherUnits (GdkPixmap *pixmap, GtkWidget *drawing_area)
{
typUnit *unit;
typUnit *unitHit;
GList *node;
int xPos;
int xPosEnd;
typSprite *sprite;
/* --- Each unit in the list --- */
for (node = unitList; node; node = node->next) {
/* --- Get the unit --- */
unit = (typUnit *) node->data;
/*
* --- Run the AI module on it to move it ---
*/
AIModule (unit);
/*
* If the unit was destroyed by the AI,
* don't draw the unit.
*/
if (unit->bDestroy) {
continue;
}
/*
* If there's no sprite for the unit,
* we can't draw it now, can we?
*/
sprite = GetSprite (unit);
if (sprite == NULL) continue;
/* --- Where on the screen is it going? --- */
xPos = UnitScreenX (unit);
/* --- Make sure unit doesn't go out of bounds --- */
AdjustSpriteHeight (unit);
/* --- Finally draw unit --- */
DisplaySprite (drawing_area, sprite,
(int) (xPos - sprite[0].width / 2),
(int) (unit->y - sprite[0].height / 2));
}
/*
* --- once everyone is painted, fire the lasers.
*/
for (node = unitList; node; node = node->next) {
unit = (typUnit *) node->data;
/* --- If this is a laser --- */
if (unit->type == LASER) {
/* --- Get starting and ending positions --- */
xPos = ScreenX ((int) unit->x);
xPosEnd = xPos + LASER_LENGTH * unit->direction;
/* --- See if anything was hit --- */
unitHit = AnyoneBetween ((int) xPos, (int) unit->y,
(int) xPosEnd, (int) unit->y);
if (unitHit) {
/* --- Something was hit --- */
/* --- Laser shot only goes this far --- */
xPosEnd = UnitScreenX (unitHit);
/* --- Destroy the unit --- */
unitHit->bDestroy = TRUE;
unit->bDestroy = TRUE;
/* --- Special effects of destruction --- */
AddExplosion (unitHit);
}
/* --- Draw the laser --- */
gdk_draw_line (pixmap, penWhite,
xPos, unit->y,
xPosEnd,
unit->y);
/* --- Get real coordinates of laser --- */
unit->x = GameX (xPosEnd);
/* --- If laser has gone too far... --- */
if (DistanceBetween (unit, hero) > nScreenWidth / 2) {
/* --- destroy it --- */
unit->bDestroy = TRUE;
}
}
}
}
NS_IMETHODIMP
Touch::GetScreenX(int32_t* aScreenX)
{
*aScreenX = ScreenX();
return NS_OK;
}
gcc_pure
RasterPoint ToScreen(fixed x, fixed y) const {
return RasterPoint{ ScreenX(x), ScreenY(y) };
}
gcc_pure
PixelPoint ToScreen(double x, double y) const {
return PixelPoint{ ScreenX(x), ScreenY(y) };
}