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Separated lua bindings from mouse.c

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This commit is contained in:
rxi
2016-10-15 15:52:16 +01:00
parent a19dad718a
commit ac83ecf23c
3 changed files with 130 additions and 111 deletions
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105
src/modules/l_mouse.c Normal file
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@@ -0,0 +1,105 @@
/**
* Copyright (c) 2016 rxi
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MIT license. See LICENSE for details.
*/
#include "mouse.h"
#include "luaobj.h"
int l_mouse_getPosition(lua_State *L) {
mouse_State *state = mouse_getState();
lua_pushinteger(L, state->x);
lua_pushinteger(L, state->y);
return 2;
}
int l_mouse_getX(lua_State *L) {
mouse_State *state = mouse_getState();
lua_pushinteger(L, state->x);
return 1;
}
int l_mouse_getY(lua_State *L) {
mouse_State *state = mouse_getState();
lua_pushinteger(L, state->y);
return 1;
}
int l_mouse_isDown(lua_State *L) {
int n = lua_gettop(L);
int res = 0;
int i;
mouse_State *state = mouse_getState();
for (i = 1; i <= n; i++) {
int idx = luaL_checknumber(L, i) - 1;
if (idx >= 0 && idx < MOUSE_BUTTON_MAX) {
res |= state->buttonsDown[idx];
}
}
lua_pushboolean(L, res);
return 1;
}
int l_mouse_poll(lua_State *L) {
mouse_update();
mouse_State *state = mouse_getState();
int i;
int n = 1;
lua_newtable(L);
/* Add motion event if mouse moved */
if ( state->x != state->lastX || state->y != state->lastY ) {
lua_newtable(L);
lua_pushstring(L, "motion");
lua_setfield(L, -2, "type");
lua_pushinteger(L, state->x);
lua_setfield(L, -2, "x");
lua_pushinteger(L, state->y);
lua_setfield(L, -2, "y");
lua_pushinteger(L, state->x - state->lastX);
lua_setfield(L, -2, "dx");
lua_pushinteger(L, state->y - state->lastY);
lua_setfield(L, -2, "dy");
lua_rawseti(L, -2, n++);
}
/* Add `pressed` and `released` events */
for (i = 0; i < MOUSE_BUTTON_MAX; i++) {
if ( state->buttonsPressed[i] || state->buttonsReleased[i] ) {
lua_newtable(L);
lua_pushstring(L, state->buttonsPressed[i] ? "pressed" : "released");
lua_setfield(L, -2, "type");
lua_pushinteger(L, i + 1);
lua_setfield(L, -2, "button");
lua_pushinteger(L, state->x);
lua_setfield(L, -2, "x");
lua_pushinteger(L, state->y);
lua_setfield(L, -2, "y");
lua_rawseti(L, -2, n++);
}
}
return 1;
}
int luaopen_mouse(lua_State *L) {
luaL_Reg reg[] = {
{ "poll", l_mouse_poll },
{ "getPosition", l_mouse_getPosition },
{ "getX", l_mouse_getX },
{ "getY", l_mouse_getY },
{ "isDown", l_mouse_isDown },
{ 0, 0 },
};
luaL_newlib(L, reg);
return 1;
}

126
src/mouse.c
View File

@@ -11,51 +11,46 @@
#include "luaobj.h"
#include "mouse.h"
int mouse_inited;
int mouse_x, mouse_y;
int mouse_lastX, mouse_lastY;
int mouse_buttonsPressed[MOUSE_BUTTON_MAX];
int mouse_buttonsReleased[MOUSE_BUTTON_MAX];
int mouse_buttonsDown[MOUSE_BUTTON_MAX];
mouse_State mouse_state;
void mouse_init(void) {
union REGS regs = {};
int86(0x33, &regs, &regs);
mouse_inited = regs.x.ax ? 1 : 0;
mouse_state.inited = regs.x.ax ? 1 : 0;
}
void mouse_update(void) {
if (!mouse_inited) {
if (!mouse_state.inited) {
return;
}
/* Update last mouse position */
mouse_lastX = mouse_x;
mouse_lastY = mouse_y;
mouse_state.lastX = mouse_state.x;
mouse_state.lastY = mouse_state.y;
/* Update mouse position */
union REGS regs = {};
regs.x.ax = 3;
int86(0x33, &regs, &regs);
mouse_x = regs.x.cx >> 1;
mouse_y = regs.x.dx;
mouse_state.x = regs.x.cx >> 1;
mouse_state.y = regs.x.dx;
/* Update button states */
int i;
for (i = 0; i < MOUSE_BUTTON_MAX; i++) {
/* Reset pressed/released */
mouse_buttonsPressed[i] = 0;
mouse_buttonsReleased[i] = 0;
mouse_state.buttonsPressed[i] = 0;
mouse_state.buttonsReleased[i] = 0;
/* Handle mouse pressed */
memset(&regs, 0, sizeof(regs));
regs.x.ax = 5;
regs.x.bx = i;
int86(0x33, &regs, &regs);
if (regs.x.bx) {
mouse_buttonsPressed[i] = 1;
mouse_buttonsDown[i] = 1;
mouse_state.buttonsPressed[i] = 1;
mouse_state.buttonsDown[i] = 1;
}
/* Handle mouse released */
memset(&regs, 0, sizeof(regs));
@@ -63,104 +58,13 @@ void mouse_update(void) {
regs.x.bx = i;
int86(0x33, &regs, &regs);
if (regs.x.bx) {
mouse_buttonsReleased[i] = 1;
mouse_buttonsDown[i] = 0;
mouse_state.buttonsReleased[i] = 1;
mouse_state.buttonsDown[i] = 0;
}
}
}
/**
* Lua binds
*/
int l_mouse_getPosition(lua_State *L) {
lua_pushinteger(L, mouse_x);
lua_pushinteger(L, mouse_y);
return 2;
}
int l_mouse_getX(lua_State *L) {
lua_pushinteger(L, mouse_x);
return 1;
}
int l_mouse_getY(lua_State *L) {
lua_pushinteger(L, mouse_y);
return 1;
}
int l_mouse_isDown(lua_State *L) {
int n = lua_gettop(L);
int res = 0;
int i;
for (i = 1; i <= n; i++) {
int idx = luaL_checknumber(L, i) - 1;
if (idx >= 0 && idx < MOUSE_BUTTON_MAX) {
res |= mouse_buttonsDown[idx];
}
}
lua_pushboolean(L, res);
return 1;
}
int l_mouse_poll(lua_State *L) {
mouse_update();
int i;
int n = 1;
lua_newtable(L);
/* Add motion event if mouse moved */
if ( mouse_x != mouse_lastX || mouse_y != mouse_lastY ) {
lua_newtable(L);
lua_pushstring(L, "motion");
lua_setfield(L, -2, "type");
lua_pushinteger(L, mouse_x);
lua_setfield(L, -2, "x");
lua_pushinteger(L, mouse_y);
lua_setfield(L, -2, "y");
lua_pushinteger(L, mouse_x - mouse_lastX);
lua_setfield(L, -2, "dx");
lua_pushinteger(L, mouse_y - mouse_lastY);
lua_setfield(L, -2, "dy");
lua_rawseti(L, -2, n++);
}
/* Add `pressed` and `released` events */
for (i = 0; i < MOUSE_BUTTON_MAX; i++) {
if ( mouse_buttonsPressed[i] || mouse_buttonsReleased[i] ) {
lua_newtable(L);
lua_pushstring(L, mouse_buttonsPressed[i] ? "pressed" : "released");
lua_setfield(L, -2, "type");
lua_pushinteger(L, i + 1);
lua_setfield(L, -2, "button");
lua_pushinteger(L, mouse_x);
lua_setfield(L, -2, "x");
lua_pushinteger(L, mouse_y);
lua_setfield(L, -2, "y");
lua_rawseti(L, -2, n++);
}
}
return 1;
}
int luaopen_mouse(lua_State *L) {
luaL_Reg reg[] = {
{ "poll", l_mouse_poll },
{ "getPosition", l_mouse_getPosition },
{ "getX", l_mouse_getX },
{ "getY", l_mouse_getY },
{ "isDown", l_mouse_isDown },
{ 0, 0 },
};
luaL_newlib(L, reg);
return 1;
mouse_State* mouse_getState(void) {
return &mouse_state;
}

10
src/mouse.h
View File

@@ -8,7 +8,17 @@ enum {
MOUSE_BUTTON_MAX,
};
typedef struct {
int inited;
int x, y;
int lastX, lastY;
int buttonsPressed[MOUSE_BUTTON_MAX];
int buttonsReleased[MOUSE_BUTTON_MAX];
int buttonsDown[MOUSE_BUTTON_MAX];
} mouse_State;
void mouse_init(void);
void mouse_update(void);
mouse_State* mouse_getState(void);
#endif