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#include <ui_menu.hpp>
extern bool gameRunning;
extern Menu *currentMenu;
extern Menu pauseMenu;
void Menu::gotoParent(void)
{
if (!parent) {
currentMenu = nullptr;
config::update();
} else {
currentMenu = parent;
}
}
void Menu::gotoChild(void)
{
currentMenu = child;
}
namespace ui {
namespace menu {
menuItem createButton(vec2 l, dim2 d, Color c, const char* t, menuFunc f)
{
menuItem temp;
temp.member = 0;
temp.button.loc = l;
temp.button.dim = d;
temp.button.color = c;
temp.button.text = t;
temp.button.func = f;
return temp;
}
menuItem createChildButton(vec2 l, dim2 d, Color c, const char* t)
{
menuItem temp;
temp.member = -1;
temp.button.loc = l;
temp.button.dim = d;
temp.button.color = c;
temp.button.text = t;
temp.button.func = NULL;
return temp;
}
menuItem createParentButton(vec2 l, dim2 d, Color c, const char* t)
{
menuItem temp;
temp.member = -2;
temp.button.loc = l;
temp.button.dim = d;
temp.button.color = c;
temp.button.text = t;
temp.button.func = NULL;
return temp;
}
menuItem createSlider(vec2 l, dim2 d, Color c, float min, float max, const char* t, float* v)
{
menuItem temp;
temp.member = 1;
temp.slider.loc = l;
temp.slider.dim = d;
temp.slider.color = c;
temp.slider.minValue = min;
temp.slider.maxValue = max;
temp.slider.text = t;
temp.slider.var = v;
temp.slider.sliderLoc = *v;
return temp;
}
void draw(void)
{
SDL_Event e;
setFontSize(24);
config::update();
mouse.x = ui::premouse.x+offset.x-(SCREEN_WIDTH/2);
mouse.y = (offset.y+SCREEN_HEIGHT/2)-ui::premouse.y;
//custom event polling for menu's so all other events are ignored
while(SDL_PollEvent(&e)) {
switch (e.type) {
case SDL_QUIT:
gameRunning = false;
return;
break;
case SDL_MOUSEMOTION:
premouse.x=e.motion.x;
premouse.y=e.motion.y;
break;
case SDL_KEYUP:
if (SDL_KEY == SDLK_ESCAPE) {
currentMenu->gotoParent();
return;
}
break;
default:break;
}
}
//draw the dark transparent background
glColor4f(0.0f, 0.0f, 0.0f, .8f);
glRectf(offset.x-SCREEN_WIDTH/2,0,offset.x+SCREEN_WIDTH/2,SCREEN_HEIGHT);
//loop through all elements of the menu
for (auto &m : currentMenu->items) {
//if the menu is any type of button
if (m.member == 0 || m.member == -1 || m.member == -2) {
//draw the button background
glColor3f(m.button.color.red,m.button.color.green,m.button.color.blue);
glRectf(offset.x+m.button.loc.x,
offset.y+m.button.loc.y,
offset.x+m.button.loc.x + m.button.dim.x,
offset.y+m.button.loc.y + m.button.dim.y);
//draw the button text
putStringCentered(offset.x + m.button.loc.x + (m.button.dim.x/2),
(offset.y + m.button.loc.y + (m.button.dim.y/2)) - ui::fontSize/2,
m.button.text);
//tests if the mouse is over the button
if (mouse.x >= offset.x+m.button.loc.x && mouse.x <= offset.x+m.button.loc.x + m.button.dim.x) {
if (mouse.y >= offset.y+m.button.loc.y && mouse.y <= offset.y+m.button.loc.y + m.button.dim.y) {
//if the mouse if over the button, it draws this white outline
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_LINE_STRIP);
glVertex2f(offset.x+m.button.loc.x, offset.y+m.button.loc.y);
glVertex2f(offset.x+m.button.loc.x+m.button.dim.x, offset.y+m.button.loc.y);
glVertex2f(offset.x+m.button.loc.x+m.button.dim.x, offset.y+m.button.loc.y+m.button.dim.y);
glVertex2f(offset.x+m.button.loc.x, offset.y+m.button.loc.y+m.button.dim.y);
glVertex2f(offset.x+m.button.loc.x, offset.y+m.button.loc.y);
glEnd();
//if the mouse is over the button and clicks
if (SDL_GetMouseState(NULL, NULL) & SDL_BUTTON(SDL_BUTTON_LEFT)) {
switch(m.member) {
case 0: //normal button
m.button.func();
break;
case -1:
currentMenu->gotoChild();
break;
case -2:
currentMenu->gotoParent();
default:break;
}
}
}
}
//if element is a slider
}else if (m.member == 1) {
//combining slider text with variable amount
char outSV[32];
sprintf(outSV, "%s: %.1f",m.slider.text, *m.slider.var);
float sliderW, sliderH;
if (m.slider.dim.y > m.slider.dim.x) {
//width of the slider handle
sliderW = m.slider.dim.x;
sliderH = m.slider.dim.y * .05;
//location of the slider handle
m.slider.sliderLoc = m.slider.minValue + (*m.slider.var/m.slider.maxValue)*(m.slider.dim.y-sliderW);
}else{
//width of the slider handle
sliderW = m.slider.dim.x * .05;
sliderH = m.slider.dim.y;
//location of the slider handle
m.slider.sliderLoc = m.slider.minValue + (*m.slider.var/m.slider.maxValue)*(m.slider.dim.x-sliderW);
}
//draw the background of the slider
glColor4f(m.slider.color.red,m.slider.color.green,m.slider.color.blue, .5f);
glRectf(offset.x+m.slider.loc.x,
offset.y+m.slider.loc.y,
offset.x+m.slider.loc.x + m.slider.dim.x,
offset.y+m.slider.loc.y + m.slider.dim.y);
//draw the slider handle
glColor4f(m.slider.color.red,m.slider.color.green,m.slider.color.blue, 1.0f);
if (m.slider.dim.y > m.slider.dim.x) {
glRectf(offset.x+m.slider.loc.x,
offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05),
offset.x+m.slider.loc.x + sliderW,
offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05) + sliderH);
//draw the now combined slider text
putStringCentered(offset.x + m.slider.loc.x + (m.slider.dim.x/2), (offset.y + m.slider.loc.y + (m.slider.dim.y*1.05)) - ui::fontSize/2, outSV);
}else{
glRectf(offset.x+m.slider.loc.x+m.slider.sliderLoc,
offset.y+m.slider.loc.y,
offset.x+m.slider.loc.x + m.slider.sliderLoc + sliderW,
offset.y+m.slider.loc.y + sliderH);
//draw the now combined slider text
putStringCentered(offset.x + m.slider.loc.x + (m.slider.dim.x/2), (offset.y + m.slider.loc.y + (m.slider.dim.y/2)) - ui::fontSize/2, outSV);
}
//test if mouse is inside of the slider's borders
if (mouse.x >= offset.x+m.slider.loc.x && mouse.x <= offset.x+m.slider.loc.x + m.slider.dim.x) {
if (mouse.y >= offset.y+m.slider.loc.y && mouse.y <= offset.y+m.slider.loc.y + m.slider.dim.y) {
//if it is we draw a white border around it
glColor3f(1.0f,1.0f,1.0f);
glBegin(GL_LINE_STRIP);
glVertex2f(offset.x+m.slider.loc.x, offset.y+m.slider.loc.y);
glVertex2f(offset.x+m.slider.loc.x+m.slider.dim.x, offset.y+m.slider.loc.y);
glVertex2f(offset.x+m.slider.loc.x+m.slider.dim.x, offset.y+m.slider.loc.y+m.slider.dim.y);
glVertex2f(offset.x+m.slider.loc.x, offset.y+m.slider.loc.y+m.slider.dim.y);
glVertex2f(offset.x+m.slider.loc.x, offset.y+m.slider.loc.y);
if (m.slider.dim.y > m.slider.dim.x) {
//and a border around the slider handle
glVertex2f(offset.x+m.slider.loc.x, offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05));
glVertex2f(offset.x+m.slider.loc.x + sliderW, offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05));
glVertex2f(offset.x+m.slider.loc.x + sliderW, offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05) + sliderH);
glVertex2f(offset.x+m.slider.loc.x, offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05) + sliderH);
glVertex2f(offset.x+m.slider.loc.x, offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05));
}else{
//and a border around the slider handle
glVertex2f(offset.x+m.slider.loc.x + m.slider.sliderLoc, offset.y+m.slider.loc.y);
glVertex2f(offset.x+m.slider.loc.x + (m.slider.sliderLoc + sliderW), offset.y+m.slider.loc.y);
glVertex2f(offset.x+m.slider.loc.x + (m.slider.sliderLoc + sliderW), offset.y+m.slider.loc.y+m.slider.dim.y);
glVertex2f(offset.x+m.slider.loc.x + m.slider.sliderLoc, offset.y+m.slider.loc.y+m.slider.dim.y);
glVertex2f(offset.x+m.slider.loc.x + m.slider.sliderLoc, offset.y+m.slider.loc.y);
}
glEnd();
//if we are inside the slider and click it will set the slider to that point
if (SDL_GetMouseState(NULL, NULL) & SDL_BUTTON(SDL_BUTTON_LEFT)) {
//change handle location
if (m.slider.dim.y > m.slider.dim.x) {
*m.slider.var = (((mouse.y-offset.y) - m.slider.loc.y)/m.slider.dim.y)*100;
//draw a white box over the handle
glColor3f(1.0f,1.0f,1.0f);
glRectf(offset.x+m.slider.loc.x,
offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05),
offset.x+m.slider.loc.x + sliderW,
offset.y+m.slider.loc.y + (m.slider.sliderLoc * 1.05) + sliderH);
}else{
*m.slider.var = (((mouse.x-offset.x) - m.slider.loc.x)/m.slider.dim.x)*100;
//draw a white box over the handle
glColor3f(1.0f,1.0f,1.0f);
glRectf(offset.x+m.slider.loc.x + m.slider.sliderLoc,
offset.y+m.slider.loc.y,
offset.x+m.slider.loc.x + (m.slider.sliderLoc + sliderW),
offset.y+m.slider.loc.y + m.slider.dim.y);
}
}
//makes sure handle can't go below or above min and max values
if (*m.slider.var >= m.slider.maxValue)*m.slider.var = m.slider.maxValue;
else if (*m.slider.var <= m.slider.minValue)*m.slider.var = m.slider.minValue;
}
}
}
}
setFontSize(16);
}
}
}
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