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Ability to drag pencil marks around.

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[originally from svn r6250]
This commit is contained in:
Simon Tatham
2005-08-31 19:27:41 +00:00
parent c70312f8a8
commit 6992530a85
1 changed files with 44 additions and 10 deletions
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54
map.c
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@ -7,7 +7,6 @@
*
* - clue marking
* - better four-colouring algorithm?
* - ability to drag a set of pencil marks?
*/
#include <stdio.h>
@ -2241,6 +2240,7 @@ static char *game_text_format(game_state *state)
struct game_ui {
int drag_colour; /* -1 means no drag active */
int drag_pencil;
int dragx, dragy;
int show_numbers;
};
@ -2318,7 +2318,7 @@ static int region_from_coords(game_state *state, game_drawstate *ds,
static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
int x, int y, int button)
{
char buf[80];
char *bufp, buf[256];
/*
* Enable or disable numeric labels on regions.
@ -2331,10 +2331,15 @@ static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
if (button == LEFT_BUTTON || button == RIGHT_BUTTON) {
int r = region_from_coords(state, ds, x, y);
if (r >= 0)
if (r >= 0) {
ui->drag_colour = state->colouring[r];
else
ui->drag_pencil = state->pencil[r];
if (ui->drag_colour >= 0)
ui->drag_pencil = 0; /* should be already, but double-check */
} else {
ui->drag_colour = -1;
ui->drag_pencil = 0;
}
ui->dragx = x;
ui->dragy = y;
return "";
@ -2351,6 +2356,8 @@ static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
ui->drag_colour > -2) {
int r = region_from_coords(state, ds, x, y);
int c = ui->drag_colour;
int p = ui->drag_pencil;
int oldp;
/*
* Cancel the drag, whatever happens.
@ -2364,15 +2371,37 @@ static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
if (state->map->immutable[r])
return ""; /* can't change this region */
if (state->colouring[r] == c)
if (state->colouring[r] == c && state->pencil[r] == p)
return ""; /* don't _need_ to change this region */
if (button == RIGHT_RELEASE && state->colouring[r] >= 0)
return ""; /* can't pencil on a coloured region */
if (button == RIGHT_RELEASE) {
if (state->colouring[r] >= 0) {
/* Can't pencil on a coloured region */
return "";
} else if (c >= 0) {
/* Right-dragging from colour to blank toggles one pencil */
p = state->pencil[r] ^ (1 << c);
c = -1;
}
/* Otherwise, right-dragging from blank to blank is equivalent
* to left-dragging. */
}
sprintf(buf, "%s%c:%d", (button == RIGHT_RELEASE ? "p" : ""),
(int)(c < 0 ? 'C' : '0' + c), r);
return dupstr(buf);
bufp = buf;
oldp = state->pencil[r];
if (c != state->colouring[r]) {
bufp += sprintf(bufp, ";%c:%d", (int)(c < 0 ? 'C' : '0' + c), r);
if (c >= 0)
oldp = 0;
}
if (p != oldp) {
int i;
for (i = 0; i < FOUR; i++)
if ((oldp ^ p) & (1 << i))
bufp += sprintf(bufp, ";p%c:%d", (int)('0' + i), r);
}
return dupstr(buf+1); /* ignore first semicolon */
}
return NULL;
@ -2852,6 +2881,11 @@ static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
draw_circle(dr, ui->dragx, ui->dragy, TILESIZE/2,
(ui->drag_colour < 0 ? COL_BACKGROUND :
COL_0 + ui->drag_colour), COL_GRID);
for (i = 0; i < FOUR; i++)
if (ui->drag_pencil & (1 << i))
draw_circle(dr, ui->dragx + ((i*4+2)%10-3) * TILESIZE/10,
ui->dragy + (i*2-3) * TILESIZE/10,
TILESIZE/8, COL_0 + i, COL_0 + i);
draw_update(dr, ds->dragx, ds->dragy, TILESIZE + 3, TILESIZE + 3);
ds->drag_visible = TRUE;
}