void repaint( list<Displayable *> dList, XInfo &xinfo) {
list<Displayable *>::const_iterator begin = dList.begin();
list<Displayable *>::const_iterator end = dList.end();
//XClearWindow( xinfo.display, xinfo.window ); move to event loop
while( begin != end ) {
Displayable *d = *begin;
d->paint(xinfo);
begin++;
}
//XFlush( xinfo.display ); same here
}
//repaint function
void repaint( XInfo &xinfo) {
list<Displayable *>::const_iterator begin = listofd.begin();
list<Displayable *>::const_iterator end = listofd.end();
// draw into the buffer
// note that a window and a pixmap are “drawables”
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0],
0, 0, xinfo.width, xinfo.height);
while( begin != end ) {
Displayable *d = *begin;
d->paint(xinfo); // the displayables know about the pixmap
begin++;
}
// copy buffer to window
XCopyArea(xinfo.display, xinfo.pixmap, xinfo.window, xinfo.gc[0],
0, 0, xinfo.width, xinfo.height, // region of pixmap to copy
0, 0); // position to put top left corner of pixmap in window
XFlush( xinfo.display );
}
/*
function to repaint a display list
Checking collisions with mountain
NOTE:
all the conditions for mountains are different
cannot use helper function to reduce the code
*/
int repaint(XInfo &xinfo) {
list<Displayable *>::const_iterator begin = dList.begin();
list<Displayable *>::const_iterator end = dList.end();
int status = 1; //1: nothing happened 0:landed 2: crushed
float slop;
int ship_point;
int i;
float length;
float height;
float expecty;
int extra;
int real_y;
vector<int> x;
vector<int> y;
//big black rectangle to clear background
XFillRectangle(xinfo.display, xinfo.pixmap, xinfo.gc[0], 0 , 0 , xinfo.width, xinfo.height);
//draw display list
while (begin != end) {
Displayable *d = *begin;
d->paint(xinfo);
begin++;
}
//check if the ship landed
if ( (ship.getY() >= lefty && pad.getx() <= ship.getX()+40 && ship.getX() <= leftx ) ||
(ship.getY() >= righty && rightx <= ship.getX()+40 && ship.getX() < rightx+pad2.getl()) ) {
if(ship.getspeed() > 2) {
status = 2;
} else {
status = 0;
}
}
if(ship.getX() < pad.getx() ) {
/*mountain 1*/
x = mountain1.getx();
y = mountain1.gety();
vector<int> indexs = findPoints(ship.getX(), ship.getX()+40, x);
vector<int> points;
for(int j = 0; j < indexs.size(); j ++ ) {
points.push_back(y[indexs[j]]);
}
real_y = ship.getY();
// right point
if(ship.getX() +40 < pad.getx()) {
ship_point = ship.getX()+40;
i = FindInterval( x, ship_point);
if ( i == 0 ) {
length = x[i] - 0;
height = y[i] - 500;
slop = height / length;
extra = 500;
}
else if( i == x.size() ) {
length = pad.getx() - x[i-1];
height = pad.gety() - y[i-1];
slop = height / length;
extra = y[i-1] - x[i-1]*slop;
}
else {
length = x[i] - x[i-1];
height = y[i] - y[i-1];
slop = height / length;
extra = y[i] - x[i]*slop;
}
expecty = ship_point * slop +extra;
if ( real_y >= expecty) {
status = 2;
}
}
// left point
if( status == 1) {
ship_point = ship.getX();
i = FindInterval( x, ship_point);
if ( i == 0 ) {
length = x[i] - 0;
height = y[i] - 500;
slop = height / length;
extra = 500;
}
else if( i == x.size() ) {
length = pad.getx() - x[i-1];
height = pad.gety() - y[i-1];
slop = height / length;
extra = y[i-1] - x[i-1]*slop;
}
else {
length = x[i] - x[i-1];
height = y[i] - y[i-1];
slop = height / length;
extra = y[i] - x[i]*slop;
}
expecty = ship_point * slop +extra;
if ( real_y >= expecty) {
status = 2;
}
}
//line
if(lower(points, ship.getY()) && status == 1) {
status = 2;
}
}
else if( ship.getX() < pad2.getx() && ship.getX()+40 > pad.getx() + pad.getl() ) {
//mountain 3
x = mountain3.getx();
y = mountain3.gety();
vector<int> indexs = findPoints(ship.getX(), ship.getX()+40, x);
vector<int> points;
for(int j = 0; j < indexs.size(); j ++ ) {
points.push_back(y[indexs[j]]);
}
real_y = ship.getY();
//right point
if(ship.getX() +40 > pad.getx() +pad.getl() && ship.getX() +40 < pad2.getx()) {
ship_point = ship.getX()+40;
i = FindInterval( x, ship_point);
if ( i == 0 ) {
length = x[i] - pad.getx()+pad.getl();
height = y[i] - pad.gety();
slop = height / length;
extra = y[i] - x[i] *slop;
}
else if( i == x.size() ) {
length = pad2.getx() - x[i-1];
height = pad2.gety() - y[i-1];
slop = height / length;
extra = y[i-1] - x[i-1]*slop;
}
else {
length = x[i] - x[i-1];
height = y[i] - y[i-1];
slop = height / length;
extra = y[i] - x[i]*slop;
}
expecty = ship_point * slop +extra;
if ( real_y >= expecty) {
status = 2;
}
}
//left point
if(ship.getX() < pad2.getx() && ship.getX() > pad.getx() + pad.getl()) {
if(status == 1) {
ship_point = ship.getX();
i = FindInterval( x, ship_point);
if ( i == 0 ) {
length = x[i] - pad.getx()+pad.getl();
height = y[i] - pad.gety();
slop = height / length;
extra = pad.gety() - (pad.getx()+pad.getl()) *slop;
}
else if( i == x.size() ) {
length = pad2.getx() - x[i-1];
height = pad2.gety() - y[i-1];
slop = height / length;
extra = y[i-1] - x[i-1]*slop;
}
else {
length = x[i] - x[i-1];
height = y[i] - y[i-1];
slop = height / length;
extra = y[i] - x[i]*slop;
}
expecty = ship_point * slop +extra;
cout << "real_y " << real_y << endl;
cout << "expecty" << expecty << endl;
if ( real_y >= expecty) {
status = 2;
}
}
}
//line
if(lower(points,ship.getY()) && status == 1) {
status = 2;
}
}
else if( ship.getX() +40< 800 && ship.getX()+40 > pad2.getx() + pad2.getl() ) {
x = mountain2.getx();
y = mountain2.gety();
vector<int> indexs = findPoints(ship.getX(), ship.getX()+40, x);
vector<int> points;
for(int j = 0; j < indexs.size(); j ++ ) {
points.push_back(y[indexs[j]]);
}
real_y = ship.getY();
//right point
ship_point = ship.getX()+40;
i = FindInterval( x, ship_point);
if ( i == 0 ) {
length = x[i] - pad2.getx()+pad.getl();
height = y[i] - pad2.gety();
slop = height / length;
extra = y[i] - x[i] *slop;
}
else if( i == x.size() ) {
length = 0 - x[i-1];
height = 800 - y[i-1];
slop = height / length;
extra = y[i-1] - x[i-1]*slop;
}
else {
length = x[i] - x[i-1];
height = y[i] - y[i-1];
slop = height / length;
extra = y[i] - x[i]*slop;
}
expecty = ship_point * slop +extra;
if ( real_y >= expecty) {
status = 2;
}
//left point
if(ship.getX() > pad2.getx() &&ship.getX() < 800) {
if(status == 1) {
ship_point = ship.getX();
i = FindInterval( x, ship_point);
if ( i == 0 ) {
length = x[i] - pad2.getx()+pad2.getl();
height = y[i] - pad2.gety();
slop = height / length;
extra = pad2.gety() - (pad2.getx()+pad2.getl()) *slop;
}
else if( i == x.size() ) {
length = 0 - x[i-1];
height = 800 - y[i-1];
slop = height / length;
extra = y[i-1] - x[i-1]*slop;
}
else {
length = x[i] - x[i-1];
height = y[i] - y[i-1];
slop = height / length;
extra = y[i] - x[i]*slop;
}
expecty = ship_point * slop +extra;
if ( real_y >= expecty) {
status = 2;
}
}
}
//line
if(lower(points, ship.getY()) && status == 1) {
status = 2;
}
}
XCopyArea(xinfo.display , xinfo.pixmap, xinfo.window , xinfo.gc[0],
0,0,xinfo.width,xinfo.height,(xinfo.width-800)/2,(xinfo.height-600)/2);
XFlush(xinfo.display);
return status;
}