diff options
| -rw-r--r-- | draw.c | 37 |
1 files changed, 36 insertions, 1 deletions
@@ -1,6 +1,7 @@ #include "draw.h" #include "level.h" #include "geometry.h" +#include <math.h> #include <gtk/gtk.h> #include <cairo/cairo.h> @@ -9,7 +10,39 @@ static double scale = 100.0; static double xTranslate = 0.0, yTranslate = 0.0; -static void room2path(cairo_t *cr, ROOM *room, RECTANGLE *rect) { +static void drawGrid(cairo_t *cr, const RECTANGLE *rect) { + double depth = log10(scale)-0.75; + double depth2 = floor(depth); + double step = pow(0.1, depth2); + double x; + int i; + + cairo_set_source_rgb(cr, 0.2*(depth-depth2), 0.2*(depth-depth2), 0.2*(depth-depth2)); + + for(i = 0; i < 3; i++) { + for(x = rect->x - fmod(rect->x, step); x <= rect->x+rect->width; x+=step) { + cairo_move_to(cr, x, rect->y); + cairo_line_to(cr, x, rect->y+rect->height); + + cairo_stroke(cr); + } + + for(x = rect->y - fmod(rect->y, step); x <= rect->y+rect->height; x+=step) { + cairo_move_to(cr, rect->x, x); + cairo_line_to(cr, rect->x+rect->width, x); + + cairo_stroke(cr); + } + + step *= 10; + if(i == 0 && 0.2*(depth-depth2+1) < 0.3) + cairo_set_source_rgb(cr, 0.2*(depth-depth2+1), 0.2*(depth-depth2+1), 0.2*(depth-depth2+1)); + else + cairo_set_source_rgb(cr, 0.3, 0.3, 0.3); + } +} + +static void room2path(cairo_t *cr, const ROOM *room, const RECTANGLE *rect) { int i; ROOM room2 = {0, NULL}; @@ -58,6 +91,8 @@ gboolean drawTopView(GtkWidget *widget, GdkEventExpose *event, gpointer data) { cairo_set_line_width(cr, 1.0/scale); cairo_set_line_join(cr, CAIRO_LINE_JOIN_MITER); + drawGrid(cr, &rect); + for(i = 0; i < lvl.nRooms; i++) room2path(cr, &lvl.rooms[i], &rect); |