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#include <stdio.h>
#include <string.h>
#include <linux/input.h>
#include <fcntl.h>
#include <unistd.h>
#include "graphics_c3.h"
#include "mouse.h"
extern struct hvr_global global;
extern struct gra_global gra_global;
//#define MOUSEDEV "/dev/input/mouse0" //just one of the many possibly connected mice. (just in case you want to use one mouse for one thing and another mouse for something else)
#define MOUSEDEV "/dev/input/mice" //all the mice connected act as one.
int mfd = -1;
//#define "mouse.h" //I guess
struct wtf {
unsigned char type;
char dx;
char dy;
};
int mouse_init() {
if((mfd=open(MOUSEDEV,O_RDWR)) == -1) {
fprintf(stderr,"# failed to open mouse: %d\n",mfd);
}
return mfd;
}
//buttons are:
//0 for left click, 1 for right click, 2 is middle-click
//in the hackvr mouse map, right is 2, left is 0 and center is 1?
#define DIE_MOUSE_LEFT 0
#define DIE_MOUSE_RIGHT 1
#define DIE_MOUSE_CENTER 2
//it doesn't care if you have X11 buttons swapped around ofc.
char die2map(char d) {//edit this function if you want to change your primary and secondary mouse button.
switch(d) {
case DIE_MOUSE_LEFT: return MOUSE_PRIMARY;
case DIE_MOUSE_RIGHT: return MOUSE_SECONDARY;
case DIE_MOUSE_CENTER: return MOUSE_TERTIARY;
default: return -1;
}
}
int mouse_event_handler() {
struct wtf ie;
int butt;
int l;
int i;//this is a DIE_MOUSE value
unsigned char m;//this is a hackvr mouse map value.
int redrawplzkthx=0;
memset(&ie,0,sizeof(ie));
if(mfd == -1) {
mfd=open(MOUSEDEV,O_RDWR);
//probably don't need nonblock anymore.
//fcntl(mfd,F_SETFL,O_NONBLOCK);
}
if(mfd == -1) {
fprintf(stderr,"# mouse shit fucked up.\n");
return 1;
}
if((l=read(mfd,&ie,sizeof(ie))) > 0) {
for(i=0;i<3;i++) {//we need to loop over all buttons each event. :/
butt=ie.type & 0x07 & (1<<i);//lowest 3 bits are possible mouse button states
m=die2map(i);
if(m == -1) {
continue;//not gonna even try.
}
if(butt) {//this button is down
fprintf(stderr,"# mouse button %d is down.\n",butt-1);
if(gra_global.mousemap[m] != 1) {//freshly down. save coords and set it to down.
gra_global.dragstart[m]=gra_global.mouse;
gra_global.mousemap[m]=1;
redrawplzkthx=1;
}
} else {
if(gra_global.mousemap[m]) {//only if it was pressed we mark it as "released"
fprintf(stderr,"# mouse button %d is being marked as released.\n",(1<<i)-1);
gra_global.mousemap[m]=-1;
if(m == MOUSE_SECONDARY) {//do this for secondary button release
gra_global.oldcamera = global.camera.r;//we're done dragging, so set this as where the camera points at for next drag around
}
redrawplzkthx=1;
//this is where camera rotation based on dragging is done?
}
}
}
if(ie.dx || ie.dy) {
fprintf(stderr,"# mouse debug: type:\t%d\tdx:%d\tdy:%d\n",ie.type,ie.dx,ie.dy);
gra_global.mouse.x+=ie.dx;
if(gra_global.mouse.x < LEFT) gra_global.mouse.x = LEFT;
if(gra_global.mouse.x > RIGHT) gra_global.mouse.x = RIGHT;
gra_global.mouse.y+=ie.dy;
if(gra_global.mouse.y < BOTTOM) gra_global.mouse.y = BOTTOM;
if(gra_global.mouse.y > TOP) gra_global.mouse.y = TOP;
fprintf(stderr,"# mouse: x:%F y:%F\n",gra_global.mouse.x,gra_global.mouse.y);
if(gra_global.mousemap[MOUSE_SECONDARY] == 1) {//if "right" click is held down... this is somehow primary click
global.camera.r.x.d=gra_global.oldcamera.x.d + (gra_global.mouse.y - gra_global.dragstart[MOUSE_SECONDARY].y);
global.camera.r.y.d=gra_global.oldcamera.y.d + (gra_global.mouse.x - gra_global.dragstart[MOUSE_SECONDARY].x);
}
redrawplzkthx=1;
}
}
if(redrawplzkthx) {
redraw();
return 1;
}
return 0;
}
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