Added pawn system for input via scheme

source/engine/debug/debugdraw.c

@@ -75,7 +75,7 @@ void draw_circle(int x, int y, float radius, int pixels)
     };
 
     glBindBuffer(GL_ARRAY_BUFFER, circleVBO);
-    glBufferData(GL_ARRAY_BUFFER, sizeof(verts), &verts, GL_DYNAMIC_DRAW);
+    glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_DYNAMIC_DRAW);
 
     shader_setfloat(circleShader, "radius", radius);
     shader_setint(circleShader, "thickness", pixels);

source/engine/editor/editor.c

@@ -686,8 +686,7 @@ void editor_project_gui() {
 startobjectgui:
 
   if (selectedobject) {
-    draw_point(selectedobject->transform.position[0],
-               selectedobject->transform.position[1], 5);
+    draw_point(selectedobject->transform.position[0], selectedobject->transform.position[1], 5);
 
     NK_FORCE(gameobject)
 

source/engine/gameobject.c

@@ -25,6 +25,14 @@ struct gameobject *get_gameobject_from_id(int id)
     return &gameobjects[id];
 }
 
+int id_from_gameobject(struct gameobject *go) {
+    for (int i = 0; i < arrlen(gameobjects); i++) {
+        if (&gameobjects[i] == i) return i;
+    }
+
+    return -1;
+}
+
 static void gameobject_setpickcolor(struct gameobject *go)
 {
     float r = ((go->editor.id & 0x000000FF) >> 0) / 255.f;
@@ -114,7 +122,7 @@ void gameobject_save(struct gameobject *go, FILE * file)
     }
 }
 
-void gameobject_makefromprefab(char *path)
+int gameobject_makefromprefab(char *path)
 {
     FILE *fprefab = fopen(path, "rb");
     if (fprefab == NULL) {
@@ -129,6 +137,8 @@ void gameobject_makefromprefab(char *path)
     gameobject_init(new, fprefab);
 
     fclose(fprefab);
+
+    return arrlen(gameobjects)-1;
 }
 
 void gameobject_init(struct gameobject *go, FILE * fprefab)
@@ -228,6 +238,18 @@ void gameobject_rotate(struct gameobject *go, float as)
     cpBodySetAngle(go->body, a);
 }
 
+void gameobject_setangle(struct gameobject *go, float angle) {
+    cpBodySetAngle(go->body, angle);
+}
+
+void gameobject_setpos(struct gameobject *go, float x, float y) {
+    if (!go || !go->body) return;
+    cpVect p;
+    p.x = x;
+    p.y = y;
+    cpBodySetPosition(go->body, p);
+}
+
 void update_gameobjects() {
     for (int i = 0; i < arrlen(gameobjects); i++)
         gameobject_update(&gameobjects[i]);

source/engine/gameobject.h

@@ -46,14 +46,17 @@ int number_of_gameobjects();
 void set_n_gameobjects(int n);
 void setup_model_transform(struct mTransform *t, struct shader *s, float scale);
 void toggleprefab(struct gameobject *go);
+
 struct gameobject *get_gameobject_from_id(int id);
+int id_from_gameobject(struct gameobject *go);
+
 void gameobject_save(struct gameobject *go, FILE * file);
 void gameobject_addcomponent(struct gameobject *go, struct component *c);
 void gameobject_delcomponent(struct gameobject *go, int n);
 void gameobject_loadcomponent(struct gameobject *go, int id);
 
 void gameobject_saveprefab(struct gameobject *go);
-void gameobject_makefromprefab(char *path);
+int gameobject_makefromprefab(char *path);
 void gameobject_syncprefabs(char *revertPath);
 void gameobject_revertprefab(struct gameobject *go);
 
@@ -64,6 +67,8 @@ void update_gameobjects();
 
 void gameobject_move(struct gameobject *go, float xs, float ys);
 void gameobject_rotate(struct gameobject *go, float as);
+void gameobject_setangle(struct gameobject *go, float angle);
+void gameobject_setpos(struct gameobject *go, float x, float y);
 
 void object_gui(struct gameobject *go);
 

source/engine/input.c

@@ -19,6 +19,13 @@ static int *downkeys = NULL;
 
 static int mquit = 0;
 
+static s7_pointer *pawns = NULL;
+
+void set_pawn(s7_pointer menv) {
+    arrput(pawns, menv);
+    YughInfo("Now controling %d pawns.", arrlen(pawns));
+}
+
 static void cursor_pos_cb(GLFWwindow *w, double xpos, double ypos)
 {
     xchange = (int)xpos - c_xpos;
@@ -174,7 +181,9 @@ void win_key_callback(GLFWwindow *w, int key, int scancode, int action, int mods
     }
 
     SCRIPTCALL:
-    script_call(keystr);
+    for (int i = 0; i < arrlen(pawns); i++)
+        script_eval_w_env(keystr, pawns[i]);
+
 }
 
 void cursor_hide()

source/engine/input.h

@@ -4,6 +4,8 @@
 #include <stdint.h>
 #include "window.h"
 
+#include "script.h"
+
 extern int32_t mouseWheelX;
 extern int32_t mouseWheelY;
 extern int ychange;
@@ -26,7 +28,8 @@ void win_key_callback(GLFWwindow *w, int key, int scancode, int action, int mods
 struct inputaction
 {
     int scancode;
-
 };
 
+void set_pawn(s7_pointer env);
+
 #endif

source/engine/mrbffi.c

@@ -10,6 +10,7 @@
 #include "engine.h"
 #include "log.h"
 #include "input.h"
+#include "gameobject.h"
 
 #include "s7.h"
 
@@ -135,17 +136,19 @@ s7_pointer s7_gen_cmd(s7_scheme *sc, s7_pointer args) {
     /* 0 : load level */
     /* 1: load prefab */
 
+    int response = 0;
+
     switch (cmd) {
         case 0:
             load_level(s);
             break;
 
         case 1:
-            gameobject_makefromprefab(s);
+            response = gameobject_makefromprefab(s);
             break;
     }
 
-    return args;
+    return s7_make_integer(sc, response);
 }
 
 s7_pointer s7_sys_cmd(s7_scheme *sc, s7_pointer args) {
@@ -156,6 +159,8 @@ s7_pointer s7_sys_cmd(s7_scheme *sc, s7_pointer args) {
             quit();
             break;
     }
+
+    return args;
 }
 
 s7_pointer s7_sound_cmd(s7_scheme *sc, s7_pointer args) {
@@ -195,24 +200,41 @@ s7_pointer s7_register(s7_scheme *sc, s7_pointer args) {
     return expr;
 }
 
-/*
-mrb_value mrb_nuke_cb(mrb_state *mrb, mrb_value self) {
-    mrb_float win;
-    mrb_sym cb;
-    mrb_get_args(mrb, "fn", &win, &cb);
-    window_i((int)win)->nuke_cb = cb;
-    return self;
+s7_pointer s7_set_pawn(s7_scheme *sc, s7_pointer args) {
+    s7_pointer pawn = s7_car(args);
+    set_pawn(pawn);
+    return args;
 }
 
-mrb_value mrb_gui_cb(mrb_state *mrb, mrb_value self) {
-    mrb_float win;
-    mrb_sym cb;
-    mrb_get_args(mrb, "fn", &win, &cb);
-    window_i((int)win)->gui_cb = cb;
-    return self;
+s7_pointer s7_set_body(s7_scheme *sc, s7_pointer args) {
+    int id = s7_integer(s7_car(args));
+    int cmd = s7_integer(s7_cadr(args));
+    double val1;
+    double val2;
+
+    switch (cmd) {
+        case 0:
+            val1 = s7_real(s7_caddr(args));
+            gameobject_setangle(get_gameobject_from_id(id), val1);
+            break;
+
+        case 1:
+            val1 = s7_real(s7_car(s7_caddr(args)));
+            val2 = s7_real(s7_cadr(s7_caddr(args)));
+            gameobject_setpos(get_gameobject_from_id(id), val1, val2);
+            break;
+    }
+
+    return args;
 }
 
-*/
+s7_pointer s7_set_body_pos(s7_scheme *sc, s7_pointer args) {
+    int id = s7_integer(s7_car(args));
+    double x = s7_real(s7_cadr(args));
+    double y = s7_real(s7_caddr(args));
+    gameobject_setpos(get_gameobject_from_id(id), x, y);
+    return args;
+}
 
 #define S7_FUNC(NAME, ARGS) s7_define_function(s7, #NAME, s7_ ##NAME, ARGS, 0, 0, "")
 
@@ -232,5 +254,8 @@ void ffi_load() {
     S7_FUNC(sound_cmd, 2);
     S7_FUNC(gui_hook, 1);
     S7_FUNC(register, 2);
+    S7_FUNC(set_pawn, 1);
+    S7_FUNC(set_body, 3);
+    S7_FUNC(set_body_pos, 3);
 }
 

source/engine/script.c

@@ -86,6 +86,12 @@ void script_call(const char *f) {
     s7_call(s7, s7_name_to_value(s7, f), s7_nil(s7));
 }
 
+void script_eval_w_env(const char *s, s7_pointer env) {
+    char buffer[512];
+    snprintf(buffer, 512-1, "(%s)", s);
+    s7_eval_c_string_with_environment(s7, buffer, env);
+}
+
 void script_call_sym(s7_pointer sym)
 {
     s7_call(s7, sym, s7_nil(s7));

source/scripts/engine.scm

@@ -13,27 +13,17 @@
 (define-macro (funcsrc func)
     `(funcinfo ,func 'source))
 
-;(define-macro (glog data lvl)
-;    (let ((z (gensym)))
-;        `(begin
-;	    (define (,z) ())
-;	    (log ,lvl ,data (funcinfo ,z 'file) (funcinfo ,z 'line)))))
-
 (define-macro (glog data lvl)
     `(log ,lvl ,data (port-filename (current-input-port)) (port-line-number (current-input-port))))
 
 (define-macro (flog data lvl)
     `(log ,lvl ,data (funcinfo (*function*) 'file) (funcinfo (*function*) 'line)))
 
-;(define-macro (glog data lvl)
-;    `(log ,lvl ,data (pair-line-number (cddr (procedure-source 
-
 (define (loginfo data) (glog data 0))
 (define (logwarn data) (glog data 1))
 (define (logerr data) (glog data 2))
 (define (logcrit data) (glog data 3))
 
-
 (define (set_fps fps) (settings_cmd 0 (/ 1 fps)))
 (define (set_update fps) (settings_cmd 1 (/ 1 fps)))
 (define (set_phys fps) (settings_cmd 2 (/ 1 fps)))
@@ -65,3 +55,17 @@
         (cond (,condition
 	(begin . ,body)
 	(,loop))))))
+
+(define (clamp val min max)
+    (cond ((< val min) min)
+          ((> val max) max)
+	  (else val)))
+
+(define (lerp s f dt)
+    (+ s (* (clamp dt 0 1) (- f s))))
+
+(define (deg2rad deg)
+    (* deg 0.01745329252))
+
+(define (body_angle! body angle) (set_body body 0 angle))
+(define (body_pos! body x y) (set_body_pos body x y))

source/shaders/circlevert.glsl

@@ -1,5 +1,5 @@
 #version 330 core
-layout (location = 0) in vec4 vertex;
+layout (location = 0) in vec2 vertex;
 out vec2 coords;
 
 layout (std140) uniform Projection
@@ -9,7 +9,5 @@ layout (std140) uniform Projection
 
 void main()
 {
-    coords = vertex.zw;
-
     gl_Position = projection * vec4(vertex.xy, 0.0, 1.0);
 }