| /* |
| * Copyright (c) 2003, Adam Dunkels. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * 3. The name of the author may not be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * This file is part of the "ctk" console GUI toolkit for cc65 |
| * |
| * $Id: ctk-mouse.c,v 1.1 2006/04/17 15:11:54 kthacker Exp $ |
| * |
| */ |
| |
| #include "ctk.h" |
| #include "ctk-mouse.h" |
| #include "ctk-conf.h" |
| |
| #if CTK_CONF_MOUSE_SUPPORT |
| |
| unsigned short ctk_mouse_joyy, ctk_mouse_joyx; |
| unsigned char ctk_mouse_firebutton; |
| |
| extern void ctk_mouse_asm_irq(void); |
| |
| /*-----------------------------------------------------------------------------------*/ |
| #pragma optimize(push, off) |
| void |
| ctk_mouse_init(void) |
| { |
| /* Place mouse pointer at the middle of the screen. */ |
| ctk_mouse_joyx = 160; |
| ctk_mouse_joyy = 100; |
| |
| /* Setup and start IRQ */ |
| asm("sei"); |
| asm("lda #<%v", ctk_mouse_asm_irq); |
| asm("sta $0314"); |
| asm("lda #>%v", ctk_mouse_asm_irq); |
| asm("sta $0315"); |
| asm("cli"); |
| |
| } |
| #pragma optimize(pop) |
| /*-----------------------------------------------------------------------------------*/ |
| unsigned short |
| ctk_mouse_x(void) |
| { |
| if(ctk_mouse_joyx >= 342) { |
| ctk_mouse_joyx = 0; |
| } else if(ctk_mouse_joyx >= 320) { |
| ctk_mouse_joyx = 319; |
| } |
| return ctk_mouse_joyx; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| unsigned short |
| ctk_mouse_y(void) |
| { |
| return ctk_mouse_joyy; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| unsigned char |
| ctk_mouse_button(void) |
| { |
| return ctk_mouse_firebutton; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| unsigned char |
| ctk_mouse_xtoc(unsigned short x) |
| { |
| return x / 8; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| unsigned char |
| ctk_mouse_ytoc(unsigned short y) |
| { |
| return y / 8; |
| } |
| /*-----------------------------------------------------------------------------------*/ |
| #pragma optimize(push, off) |
| void |
| ctk_mouse_hide(void) |
| { |
| /* Turn off sprites 0 and 1 */ |
| asm("lda #0"); |
| asm("sta $d015"); |
| } |
| #pragma optimize(pop) |
| /*-----------------------------------------------------------------------------------*/ |
| #pragma optimize(push, off) |
| void |
| ctk_mouse_show(void) |
| { |
| /* Turn on sprites 0 and 1 */ |
| asm("lda #3"); |
| asm("sta $d015"); |
| } |
| #pragma optimize(pop) |
| /*-----------------------------------------------------------------------------------*/ |
| #endif /* CTK_CONF_MOUSE_SUPPORT */ |