treewars/menubutton.cpp

#include "menubutton.h"
#include "drawutils.h"


ButtonAction::ButtonAction()
{
    mode = MODE_NONE;
    type = VERTEX_NONE;
    action = BUTTON_NONE;
}


MenuButton::MenuButton(ButtonAction action, string text, TTF_Font* font,
		       int x, int y, int colour, int hover_colour,
		       int selected_colour, int background_colour)
{
    this->text = text;
    this->x = x;
    this->y = y;
    this->font = font;

    this->colour = colour;
    this->hover_colour = hover_colour;
    this->selected_colour = selected_colour;
    this->background_colour = background_colour;
    this->action = action;
}


bool MenuButton::init()
{
    hover = false;
    selected = false;
    visible = true;
    enabled = true;
    return true;
}


void MenuButton::set_selected(bool is_selected)
{
    selected = is_selected;
}


void MenuButton::set_visible(bool is_visible)
{
    visible = is_visible;
}


void MenuButton::iterate()
{
    int x, y;
    SDL_GetMouseState(&x, &y);
    if (is_at(x, y)) hover = true;
    else hover = false;
}


void MenuButton::render(SDL_Surface* display)
{
    if (!visible) return;

    int colour_to_use = colour;
    if (!enabled) colour_to_use = 0xbbbbbb;
    else if (selected) colour_to_use = selected_colour;
    else if (hover) colour_to_use = hover_colour;

    SDL_Rect pen = {x, y, 80, 20};

    SDL_FillRect(display, &pen, background_colour);

    int temp_colour = 0x000000;

    DrawUtils::draw_text(display, text, x + 40, y + 10, font, colour_to_use,
			 1, 1);
}


bool MenuButton::is_at(int test_x, int test_y)
{
    if (!visible) return false;
    return test_x > x && test_y > y && test_x < x + 80 && test_y < y + 20;
}


void MenuButton::set_state(Mode mode, VertexType type, GameVertex* current,
			   bool can_build)
{
    selected = false;
    visible = false;
    enabled = true;

    if (action.action & BUTTON_END_TURN)
    {
	visible = true;
	return;
    }

    if (action.mode == mode || action.type == type)
	selected = true;

    // no optional buttons if current == NULL, period
    if (current == NULL) return;

    // If we have selected one of our vertices, and we're one of the three
    // main buttons, be visible
    if (action.mode != MODE_NONE)
	visible = true;

    // If we're one of the other three, and we're in MODE_BUILD, we're visible
    if (mode & MODE_BUILD && action.type != VERTEX_NONE)
    {
	visible = true;

	if (!can_build)
	    enabled = false;
    }

    if (action.type == VERTEX_ATTACKER && current->attacked) enabled = false;

    if (action.mode == MODE_MOVE && current->player->get_energy() <
	current->r) enabled = false;

    if (action.mode == MODE_BUILD && current->player->get_energy() < 25)
	enabled = false;
}