cell grid and UI split

[vrlugburz] / tools / dunger / src / level.c

diff --git a/tools/dunger/src/level.c b/tools/dunger/src/level.c
new file mode 100644 (file)
index 0000000..f61f3f6
--- /dev/null
+++ b/tools/dunger/src/level.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/gl.h>
+#include "level.h"
+
+extern int view_width, view_height;
+
+struct level *create_level(int xsz, int ysz)
+{
+       struct level *lvl;
+
+       if(!(lvl = malloc(sizeof *lvl))) {
+               return 0;
+       }
+       if(!(lvl->cells = calloc(xsz * ysz, sizeof *lvl->cells))) {
+               free(lvl);
+               return 0;
+       }
+       lvl->width = xsz;
+       lvl->height = ysz;
+       return lvl;
+}
+
+void free_level(struct level *lvl)
+{
+       if(!lvl) return;
+       free(lvl->cells);
+       free(lvl);
+}
+
+static void draw_cell(float x, float y, float sz, struct cell *cell)
+{
+       static const float colors[][3] = {{0, 0, 0}, {0.6, 0.6, 0.6}, {0.4, 0.2, 0.1}};
+
+       if(cell) {
+               glColor3fv(colors[cell->type]);
+       } else {
+               glColor3f(1, 1, 1);
+       }
+       glVertex2f(x, y);
+       glVertex2f(x + sz, y);
+       glVertex2f(x + sz, y + sz);
+       glVertex2f(x, y + sz);
+}
+
+void draw_level(struct level *lvl)
+{
+       int i, j;
+       float x, y, dx, dy, cellsz;
+       struct cell *cell;
+
+       dx = view_width / lvl->width;
+       dy = view_height / lvl->height;
+       cellsz = dx > dy ? dy : dx;
+
+       glBegin(GL_QUADS);
+       cell = lvl->cells;
+       y = 0;
+       for(i=0; i<lvl->height; i++) {
+               x = 0;
+               for(j=0; j<lvl->width; j++) {
+                       draw_cell(x, y, cellsz, cell++);
+                       x += cellsz;
+               }
+               y += cellsz;
+       }
+       glEnd();
+
+       glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+       glBegin(GL_QUADS);
+       y = 0;
+       for(i=0; i<lvl->height; i++) {
+               x = 0;
+               for(j=0; j<lvl->width; j++) {
+                       draw_cell(x, y, cellsz, 0);
+                       x += cellsz;
+               }
+               y += cellsz;
+       }
+       glEnd();
+       glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+}