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 struct EvalResult
  80 hide_label(void *param, Gc *gc, struct Scope *scope, struct Expr args)
  81 {
  82     assert(param);
  83     assert(gc);
  84     assert(scope);
  85     (void) args;
  86
  87     /* TODO: hide-label is not implemented */
  88
  89     return not_implemented(gc);
  90 }
  91
  92 struct EvalResult
  93 show_label(void *param, Gc *gc, struct Scope *scope, struct Expr args)
  94 {
  95     assert(param);
  96     assert(gc);
  97     assert(scope);
  98     (void) args;
  99
 100     /* TODO: show-label is not implemented */
 101
 102     return not_implemented(gc);
 103 }
 104
 105 void load_level_library(Gc *gc, struct Scope *scope, Level *level)
 106 {
 107     set_scope_value(
 108         gc,
 109         scope,
 110         SYMBOL(gc, "rect-apply-force"),
 111         NATIVE(gc, rect_apply_force, level));
 112     set_scope_value(
 113         gc,
 114         scope,
 115         SYMBOL(gc, "hide-goal"),
 116         NATIVE(gc, hide_goal, level));
 117     set_scope_value(
 118         gc,
 119         scope,
 120         SYMBOL(gc, "show-goal"),
 121         NATIVE(gc, show_goal, level));
 122     set_scope_value(
 123         gc,
 124         scope,
 125         SYMBOL(gc, "show-label"),
 126         NATIVE(gc, show_label, level));
 127     set_scope_value(
 128         gc,
 129         scope,
 130         SYMBOL(gc, "hide-label"),
 131         NATIVE(gc, hide_label, level));
 132 }