Draw sprite to GUI

Makefile

@@ -64,7 +64,7 @@ eobjects != $(call rm,$(eobjects),sqlite pl_mpeg_extract_frames pl_mpeg_player y
 
 engincs != find source/engine -maxdepth 1 -type d
 includeflag != find source -type d -name include
-includeflag += engincs
+includeflag += $(engincs) source/engine/thirdparty/Nuklear
 includeflag := $(addprefix -I, $(includeflag))
 
 WARNING_FLAGS = -Wall# -pedantic -Wextra -Wwrite-strings  -Wno-incompatible-function-pointer-types -Wno-incompatible-pointer-types -Wno-unused-function

source/engine/font.c

@@ -183,11 +183,9 @@ void renderText(const char *text, mfloat_t pos[2], float scale, mfloat_t color[3
     shader_use(shader);
     shader_setvec3(shader, "textColor", color);
 
-    cpVect campos = cam_pos();
-
     mfloat_t cursor[2] = { 0.f };
-    cursor[0] = pos[0] + campos.x;
-    cursor[1] = pos[1] + campos.y;
+    cursor[0] = pos[0];
+    cursor[1] = pos[1];
 
     glActiveTexture(GL_TEXTURE0);
     glBindVertexArray(VAO);

source/engine/mrbffi.c

@@ -13,6 +13,7 @@
 #include "gameobject.h"
 #include "openglrender.h"
 #include "2dphysics.h"
+#include "sprite.h"
 
 #include "yugine.h"
 
@@ -70,6 +71,16 @@ s7_pointer s7_gui_text(s7_scheme *sc, s7_pointer args) {
     return s7_car(args);
 }
 
+s7_pointer s7_gui_img(s7_scheme *sc, s7_pointer args) {
+    const char *img = s7_string(s7_car(args));
+    float x = s7_real(s7_cadr(args));
+    float y = s7_real(s7_caddr(args));
+
+    gui_draw_img(img, x, y);
+
+    return args;
+}
+
 s7_pointer s7_settings_cmd(s7_scheme *sc, s7_pointer args) {
     int cmd = s7_integer(s7_car(args));
     double val = s7_real(s7_cadr(args));
@@ -132,18 +143,32 @@ s7_pointer s7_win_cmd(s7_scheme *sc, s7_pointer args) {
     int cmd = s7_integer(s7_cadr(args));
     struct window *w = window_i(win);
 
+    /*
+        3: return win width
+        4: return win height
+
+    */
+
     switch (cmd) {
-        case 0:  // toggle fullscreen
+        case 0:  /* toggle fullscreen */
             window_togglefullscreen(w);
             break;
 
-        case 1: // Fullscreen on
+        case 1: /* Fullscreen on */
             window_makefullscreen(w);
             break;
 
-        case 2: // Fullscreen off
+        case 2: /* Fullscreen off */
             window_unfullscreen(w);
             break;
+
+        case 3:
+            return s7_make_integer(sc, w->width);
+            break;
+
+        case 4:
+            return s7_make_integer(sc, w->height);
+            break;
     }
 
     return args;
@@ -365,6 +390,7 @@ void ffi_load() {
     S7_FUNC(ui_rendertext, 3);
 
     S7_FUNC(gui_text, 4);
+    S7_FUNC(gui_img, 3);
 
     S7_FUNC(gen_cmd, 2);
     S7_FUNC(sys_cmd, 1);

source/engine/openglrender.c

@@ -123,9 +123,6 @@ void add_zoom(float val) { zoom = val; }
 
 void openglRender(struct window *window)
 {
-    glClear(GL_COLOR_BUFFER_BIT);
-    glClearColor(0.3f, 0.3f, 0.3f, 1.f);
-
 
     //////////// 2D projection
     mfloat_t projection[16] = { 0.f };
@@ -135,31 +132,36 @@ void openglRender(struct window *window)
 	   pos.y,
 	   window->height*zoom + pos.y, -1.f, 1.f);
 
-    glBindBuffer(GL_UNIFORM_BUFFER, projUBO);
-    glBufferSubData(GL_UNIFORM_BUFFER, 0, 64, projection);
-
-    //shader_setmat4(vid_shader, "projection", projection);
-   glEnable(GL_DEPTH_TEST);
+    mfloat_t ui_projection[16] = { 0.f };
+    mat4_ortho(ui_projection, 0,
+        window->width,
+        0,
+        window->height, -1.f, 1.f);
 
     // Clear color and depth
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 
-    ////// TEXT && GUI
-    call_gui();
+    glBindBuffer(GL_UNIFORM_BUFFER, projUBO);
+    glBufferSubData(GL_UNIFORM_BUFFER, 0, 64, projection);
 
-    //// DEBUG
-    if (debugDrawPhysics)
-        gameobject_draw_debugs();
 
+    glEnable(GL_DEPTH_TEST);
     ///// Sprites
     glDepthFunc(GL_LESS);
     shader_use(spriteShader);
     sprite_draw_all();
 
-     glDepthFunc(GL_ALWAYS);
-     shader_use(textShader);
-     shader_setmat4(textShader, "projection", projection);
 
+
+    glDisable(GL_DEPTH_TEST);
+    //// DEBUG
+    if (debugDrawPhysics)
+        gameobject_draw_debugs();
+
+    ////// TEXT && GUI
+    glBindBuffer(GL_UNIFORM_BUFFER, projUBO);
+    glBufferSubData(GL_UNIFORM_BUFFER, 0, 64, ui_projection);
+    call_gui();
 }
 
 void BindUniformBlock(GLuint shaderID, const char *bufferName, GLuint bufferBind)

source/engine/sprite.c

@@ -133,13 +133,7 @@ void sprite_initialize()
     glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 0, NULL);
 }
 
-void sprite_draw(struct sprite *sprite)
-{
-    if (sprite->tex != NULL) {
-
-	//shader_use(spriteShader);
-
-
+void tex_draw(struct Texture *tex, float pos[2], float angle, float size[2], float offset[2]) {
 	mfloat_t model[16] = { 0.f };
 	mfloat_t r_model[16] = { 0.f };
 	mfloat_t s_model[16] = { 0.f };
@@ -147,41 +141,51 @@ void sprite_draw(struct sprite *sprite)
 	memcpy(r_model, UNITMAT4, sizeof(UNITMAT4));
 	memcpy(s_model, UNITMAT4, sizeof(UNITMAT4));
 
+         mfloat_t t_scale[2] = { size[0] * tex->width, size[1] * tex->height };
+         mfloat_t t_offset[2] = { offset[0] * t_scale[0], offset[1] * t_scale[1] };
 
-
-	mfloat_t t_move[2] = { 0.f };
-	mfloat_t t_scale[2] = { 0.f };
-
-	t_scale[0] = sprite->size[0] * sprite->tex->width * sprite->go->scale;
-	t_scale[1] = sprite->size[1] * sprite->tex->height * sprite->go->scale;
-
-	t_move[0] = sprite->pos[0] * t_scale[0];
-	t_move[1] = sprite->pos[1] * t_scale[1];
-
-	mat4_translate_vec2(model, t_move);
+	mat4_translate_vec2(model, t_offset);
 	mat4_scale_vec2(model, t_scale);
-	mat4_rotation_z(r_model, cpBodyGetAngle(sprite->go->body));
+
+	mat4_rotation_z(r_model, angle);
 
 	mat4_multiply(model, r_model, model);
 
-	cpVect pos = cpBodyGetPosition(sprite->go->body);
-	t_move[0] = pos.x;
-	t_move[1] = pos.y;
-	mat4_translate_vec2(model, t_move);
-
+	mat4_translate_vec2(model, pos);
 
+         float white[3] = { 1.f, 1.f, 1.f };
 	shader_setmat4(spriteShader, "model", model);
-	shader_setvec3(spriteShader, "spriteColor", sprite->color);
+	shader_setvec3(spriteShader, "spriteColor", white);
 
 	//tex_bind(sprite->tex);
 	glActiveTexture(GL_TEXTURE0);
-	glBindTexture(GL_TEXTURE_2D, sprite->tex->id);
+	glBindTexture(GL_TEXTURE_2D, tex->id);
 
 	glBindVertexArray(quadVAO);
 	glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+}
+
+void sprite_draw(struct sprite *sprite)
+{
+    if (sprite->tex) {
+        cpVect cpos = cpBodyGetPosition(sprite->go->body);
+        float pos[2] = {cpos.x, cpos.y};
+
+        float size[2] = { sprite->size[0] * sprite->go->scale, sprite->size[1] * sprite->go->scale };
+
+        tex_draw(sprite->tex, pos, cpBodyGetAngle(sprite->go->body), size, sprite->pos);
     }
 }
 
+void gui_draw_img(const char *img, float x, float y) {
+    shader_use(spriteShader);
+    struct Texture *tex = texture_loadfromfile(img);
+    float pos[2] = {x, y};
+    float size[2] = {1.f, 1.f};
+    float offset[2] = { 0.f, 0.f };
+    tex_draw(tex, pos, 0.f, size, offset);
+}
+
 void spriteanim_draw(struct sprite *sprite)
 {
     shader_use(animSpriteShader);

source/engine/sprite.h

@@ -46,4 +46,7 @@ void sprite_draw_all();
 unsigned int incrementAnimFrame(unsigned int interval, struct sprite *sprite);
 
 
+void gui_draw_img(const char *img, float x, float y);
+
+
 #endif

source/engine/texture.c

@@ -29,7 +29,7 @@ struct Texture *texture_pullfromfile(const char *path)
     tex->anim.ms = 1;
 
     int n;
-    stbi_set_flip_vertically_on_load(0);
+    stbi_set_flip_vertically_on_load(1);
     unsigned char *data = stbi_load(path, &tex->width, &tex->height, &n, 4);
 
     while (data == NULL) {
@@ -250,3 +250,5 @@ void anim_bkwd(struct TexAnimation *anim)
 {
     anim_decr(anim);
 }
+
+

source/engine/texture.h

@@ -76,4 +76,6 @@ void tex_anim_calc_uv(struct TexAnimation *anim);
 void tex_anim_set(struct TexAnimation *anim);
 
 
+
+
 #endif

source/engine/window.c

@@ -154,9 +154,6 @@ void window_handle_event(struct window *w)
 		    "Changed size of window %d: width %d, height %d.",
 		    w->id, w->width, w->height);
 	    window_makecurrent(w);
-	    w.projection =
-	       glm::ortho(0.f, (float) width, 0.f, (float) height, -1.f,
-	       1.f);
 	    w->render = true;
 	    break;
 

source/engine/window.h

@@ -18,7 +18,6 @@ struct window {
     bool minimized;
     bool iconified;
     bool shown;
-    float projection[16];
     void (*nuke_gui)();
 };
 

source/scripts/engine.scm

@@ -40,10 +40,11 @@
 (define (set_phys fps) (settings_cmd 2 (/ 1 fps)))
 (define (zoom! amt) (settings_cmd 5 amt))
 
-(define (win_fulltoggle w) (win_cmd w 0))
-(define (win_fullscreen w) (win_cmd w 1))
-(define (win_unfullscreen w) (win_cmd w 2))
-(define (win_title s) (win_cmd 0 3 s))
+(define (win_fulltoggle) (win_cmd 0 0))
+(define (win_fullscreen) (win_cmd 0 1))
+(define (win_unfullscreen) (win_cmd 0 2))
+(define (win_w) (win_cmd 0 3))
+(define (win_h) (win_cmd 0 4))
 
 (define (load_level s) (gen_cmd 0 s))
 (define (load_prefab s) (gen_cmd 1 s))
@@ -71,7 +72,8 @@
 	    (register 0 ,f))))
 
 (define-macro (gui . expr)
-    `(registertype gui ,@expr))
+    `(registertype gui
+      (let ((x 0) (y 0)) ,@expr)))
     
 (define-macro (while condition . body)
     (let ((loop (gensym)))

source/shaders/textvert.glsl

@@ -2,7 +2,10 @@
 layout (location = 0) in vec4 vertex; // <vec2 pos, vec2 tex>
 out vec2 TexCoords;
 
-uniform mat4 projection;
+layout (std140) uniform Projection
+{
+    mat4 projection;
+};
 
 void main()
 {