tbftss/src/system/input.c

115 lines
2.6 KiB
C

/*
Copyright (C) 2015-2016 Parallel Realities
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "input.h"
static SDL_Texture *mousePointer;
void initInput(void)
{
memset(&app.mouse, 0, sizeof(Mouse));
mousePointer = getTexture("gfx/input/mousePointer.png");
SDL_QueryTexture(mousePointer, NULL, NULL, &app.mouse.w, &app.mouse.h);
}
void doKeyDown(SDL_KeyboardEvent *event)
{
if (event->keysym.scancode >= 0 && event->keysym.scancode < MAX_KEYBOARD_KEYS && event->repeat == 0)
{
app.keyboard[event->keysym.scancode] = 1;
app.lastKeyPressed = event->keysym.scancode;
}
}
void doKeyUp(SDL_KeyboardEvent *event)
{
if (event->keysym.scancode >= 0 && event->keysym.scancode < MAX_KEYBOARD_KEYS)
{
app.keyboard[event->keysym.scancode] = 0;
}
}
void doMouseDown(SDL_MouseButtonEvent *event)
{
if (event->button >= 0 && event->button < MAX_MOUSE_BUTTONS)
{
app.mouse.button[event->button] = 1;
app.lastButtonPressed = event->button;
}
}
void doMouseUp(SDL_MouseButtonEvent *event)
{
if (event->button >= 0 && event->button < MAX_MOUSE_BUTTONS)
{
app.mouse.button[event->button] = 0;
}
}
/*
* Note: the following assumes that SDL_BUTTON_X1 and SDL_BUTTON_X2 are 4 and 5, respectively. They usually are.
*/
void doMouseWheel(SDL_MouseWheelEvent *event)
{
if (event->y == -1)
{
app.mouse.button[SDL_BUTTON_X1] = 1;
app.lastButtonPressed = SDL_BUTTON_X1;
}
if (event->y == 1)
{
app.mouse.button[SDL_BUTTON_X2] = 1;
app.lastButtonPressed = SDL_BUTTON_X2;
}
}
void doMouseMotion(SDL_MouseMotionEvent *event)
{
app.mouse.dx = event->xrel;
app.mouse.dy = event->yrel;
}
void drawMouse(void)
{
int x, y;
SDL_GetMouseState(&x, &y);
app.mouse.x = x * app.scaleX;
app.mouse.y = y * app.scaleY;
blit(mousePointer, app.mouse.x, app.mouse.y, 1);
}
void clearInput(void)
{
SDL_Event event;
memset(app.keyboard, 0, sizeof(int) * MAX_KEYBOARD_KEYS);
memset(app.mouse.button, 0, sizeof(int) * MAX_MOUSE_BUTTONS);
while (SDL_PollEvent(&event))
{
}
}