src/game/level_script.c

   1 #include <assert.h>
   2
   3 #include "ebisp/gc.h"
   4 #include "ebisp/interpreter.h"
   5 #include "ebisp/scope.h"
   6 #include "game/level/player/rigid_rect.h"
   7 #include "level.h"
   8 #include "level_script.h"
   9 #include "system/log.h"
  10
  11 struct EvalResult
  12 hide_goal(void *param, Gc *gc, struct Scope *scope, struct Expr args)
  13 {
  14     assert(param);
  15     assert(gc);
  16     assert(scope);
  17
  18     Level * const level = (Level*)param;
  19     const char * const goal_id = NULL;
  20
  21     struct EvalResult result = unpack_args(gc, "s", args, &goal_id);
  22     if (result.is_error) {
  23         return result;
  24     }
  25
  26     level_hide_goal(level, goal_id);
  27
  28     return eval_success(NIL(gc));
  29 }
  30
  31 struct EvalResult
  32 show_goal(void *param, Gc *gc, struct Scope *scope, struct Expr args)
  33 {
  34     assert(param);
  35     assert(gc);
  36     assert(scope);
  37
  38     Level * const level = (Level*)param;
  39     const char *goal_id = NULL;
  40
  41     struct EvalResult result = unpack_args(gc, "s", args, &goal_id);
  42     if (result.is_error) {
  43         return result;
  44     }
  45
  46     level_show_goal(level, goal_id);
  47
  48     return eval_success(NIL(gc));
  49 }
  50
  51 struct EvalResult rect_apply_force(void *param, Gc *gc, struct Scope *scope, struct Expr args)
  52 {
  53     assert(gc);
  54     assert(scope);
  55     assert(param);
  56
  57     /* TODO(#401): rect_apply_force doesn't sanitize it's input */
  58
  59     Level *level = (Level*) param;
  60     const char *rect_id = CAR(args).atom->str;
  61     struct Expr vector_force_expr = CAR(CDR(args));
  62     const float force_x = (float) CAR(vector_force_expr).atom->num;
  63     const float force_y = (float) CDR(vector_force_expr).atom->num;
  64
  65     print_expr_as_sexpr(stdout, args); printf("\n");
  66
  67     Rigid_rect *rigid_rect = level_rigid_rect(level, rect_id);
  68     if (rigid_rect != NULL) {
  69         log_info("Found rect `%s`\n", rect_id);
  70         log_info("Applying force (%f, %f)\n", force_x, force_y);
  71         rigid_rect_apply_force(rigid_rect, vec(force_x, force_y));
  72     } else {
  73         log_fail("Couldn't find rigid_rect `%s`\n", rect_id);
  74     }
  75
  76     return eval_success(NIL(gc));
  77 }
  78
  79 void load_level_library(Gc *gc, struct Scope *scope, Level *level)
  80 {
  81     set_scope_value(
  82         gc,
  83         scope,
  84         SYMBOL(gc, "rect-apply-force"),
  85         NATIVE(gc, rect_apply_force, level));
  86     set_scope_value(
  87         gc,
  88         scope,
  89         SYMBOL(gc, "hide-goal"),
  90         NATIVE(gc, hide_goal, level));
  91     set_scope_value(
  92         gc,
  93         scope,
  94         SYMBOL(gc, "show-goal"),
  95         NATIVE(gc, show_goal, level));
  96 }