Modifed ray intersection and Added misc windows related files

README.md

@@ -155,6 +155,7 @@
 
 - ## TODO
 
+	- Fix mouse button press/release behaviour by investigating how sdl handles mouse release or by explicitly caching mouse state by using event callbacks recieved when a mousebutton release event is reported by sdl
 	- Improve bounding sphere calculation
 	- Screen mouse coordinates to world-coordinates for aiming
 	- Player projectiles and sounds

misc/ed.bat

@@ -0,0 +1,3 @@
+@echo off
+
+"C:\Program Files\emacs-26.1-x86_64\bin\runemacs.exe"

misc/setup_env.bat

@@ -0,0 +1,8 @@
+@echo off
+
+call D:\VS_2017\VC\Auxiliary\Build\vcvarsall.bat x64
+cls
+set edito="C:\Program Files\emacs-26.1-x86_64\bin\runemacs.exe"
+set path=W:\misc;%path% rem 
+
+

src/game/platform.c

@@ -347,7 +347,7 @@ int platform_mousebutton_state_get(uint button)
 {
 	int pressed = 0;
 	uint32 current_button_state = SDL_GetMouseState(NULL, NULL);
-	if((current_button_state & SDL_BUTTON(button)) > 0) pressed = 1;
+	if((current_button_state & SDL_BUTTON(button))) pressed = 1;
 	return pressed;
 }
 

src/libsymmetry/bounding_volumes.h

@@ -4,6 +4,8 @@
 #include "../common/linmath.h"
 #include "../common/num_types.h"
 
+#define MAX_RAYCAST_ENTITIES_INTERSECT 256
+
 struct Bounding_Box
 {
 	vec3 min;
@@ -40,6 +42,12 @@ struct Ray
 	vec3 origin;
 };
 
+struct Raycast_Result
+{
+	struct Entity* entities_intersected[MAX_RAYCAST_ENTITIES_INTERSECT];
+	int            num_entities_intersected;
+};
+
 int  bv_intersect_frustum_box(vec4* frustum, struct Bounding_Box* box, vec3* box_abs_position, vec3* box_abs_scale);
 int  bv_intersect_frustum_sphere(vec4* frustum, struct Bounding_Sphere* sphere, vec3* sphere_abs_pos, vec3* sphere_abs_scale);
 bool bv_intersect_frustum_point(vec4* frustum, const vec3* point);

src/libsymmetry/camera.c

@@ -241,26 +241,4 @@ struct Ray camera_screen_coord_to_ray(struct Camera* camera, int mouse_x, int mo
 	transform_get_absolute_position(&camera->base, &ray.origin);
 	
 	return ray;
-
-	/*vec4 clip_coords = {normalized_x, normalized_y, -1.f, 1.f};
-	vec4 ray_eye = {0.f};
-
-	mat4 inverse_proj_mat;
-	mat4_identity(&inverse_proj_mat);
-	mat4_inverse(&inverse_proj_mat, &camera->proj_mat);
-	vec4_mul_mat4(&ray_eye, &clip_coords, &inverse_proj_mat);
-
-	ray_eye.z = -1.f;
-	ray_eye.w = 0.f;
-
-	vec4 ray_world = {0.f};
-	mat4 inverse_view_mat;
-	mat4_identity(&inverse_view_mat);
-	mat4_inverse(&inverse_view_mat, &camera->view_mat);
-	vec4_mul_mat4(&ray_world, &ray_eye, &inverse_view_mat);
-
-	vec3 world_coords = {ray_world.x, ray_world.y, ray_world.z};
-	vec3_norm(&world_coords, &world_coords);
-
-	return world_coords;*/
 }

src/libsymmetry/editor.c

@@ -19,6 +19,7 @@
 #include "../common/num_types.h"
 #include "../common/string_utils.h"
 #include "../common/common.h"
+#include "bounding_volumes.h"
 #include "input.h"
 #include "scene.h"
 
@@ -584,9 +585,37 @@ void editor_camera_update(float dt)
 	else
 	{
 		input_mouse_mode_set(MM_NORMAL);
-		//log_message("ud : %.3f, lr : %.3f", turn_up_down, turn_left_right);
 		turn_up_down *= dt;
 		turn_left_right *= dt;
+
+		//Picking
+		//If we're not looking around then allow picking
+		if(input_mousebutton_state_get(MSB_LEFT, KS_RELEASED))
+		{
+			int mouse_x = 0, mouse_y = 0;
+			platform->mouse_position_get(&mouse_x, &mouse_y);
+			struct Ray ray = camera_screen_coord_to_ray(editor_camera, mouse_x, mouse_y);
+			//log_message("Ray: %.3f, %.3f, %.3f", ray.direction.x, ray.direction.y, ray.direction.z);
+
+			struct Scene* scene = game_state_get()->scene;
+			struct Raycast_Result ray_result;
+			scene_ray_intersect(scene, &ray, &ray_result);
+
+			if(ray_result.num_entities_intersected > 0)
+			{
+				//For now, just select the first entity that is intersected
+				struct Entity* intersected_entity = ray_result.entities_intersected[0];
+
+				if(editor_state.selected_entity && editor_state.selected_entity != intersected_entity)
+				{
+					editor_state.selected_entity->editor_selected = false;
+					editor_state.selected_entity = NULL;
+				}
+
+				intersected_entity->editor_selected = true;
+				editor_state.selected_entity = intersected_entity;
+			}
+		}
 	}
 
 	total_up_down_rot += turn_up_down;

src/libsymmetry/gui.c

@@ -91,7 +91,7 @@ bool gui_init(void)
     platform->textinput_callback_set(&gui_handle_textinput_event);
 	//gui_font_set("Ubuntu-R.ttf", 14);
 	//gui_font_set("FiraSans-Regular.ttf", 14);
-	gui_font_set("roboto_condensed.ttf", 16);
+	gui_font_set("roboto_condensed.ttf", 18);
 //	gui_theme_set(GT_RED);
     gui_theme_set(GT_DEFAULT);
 	success = true;
@@ -134,7 +134,7 @@ void gui_render(enum nk_anti_aliasing AA)
     struct Game_State* game_state = game_state_get();
     platform->window.get_size(game_state->window, &width, &height);
     platform->window.get_drawable_size(game_state->window, &display_width, &display_height);
-	mat4_ortho(&gui_mat, 0, display_width, display_height, 0, -100, 100);
+    mat4_ortho(&gui_mat, 0.f, display_width, display_height, 0.f, -100.f, 100.f);
 
     scale.x = (float)display_width/(float)width;
     scale.y = (float)display_height/(float)height;

src/libsymmetry/player.c

@@ -76,6 +76,7 @@ void player_update(struct Player* player, struct Scene* scene, float dt)
 		struct Ray ray = camera_screen_coord_to_ray(player->camera_node, mouse_x, mouse_y);
 		log_message("Ray: %.3f, %.3f, %.3f", ray.direction.x, ray.direction.y, ray.direction.z);
 
-		scene_ray_intersect(scene, &ray);
+		struct Raycast_Result ray_result;
+		scene_ray_intersect(scene, &ray, &ray_result);
 	}
 }

src/libsymmetry/scene.c

@@ -555,9 +555,13 @@ void scene_entity_parent_set(struct Scene* scene, struct Entity* entity, struct
 	transform_parent_set(entity, parent, true);
 }
 
-
-void scene_ray_intersect(struct Scene* scene, struct Ray* ray)
+void scene_ray_intersect(struct Scene* scene, struct Ray* ray, struct Raycast_Result* out_results)
 {
+	assert(out_results);
+
+	memset(&out_results[0], '\0', sizeof(struct Entity*) * MAX_RAYCAST_ENTITIES_INTERSECT);
+	out_results->num_entities_intersected = 0;
+
 	for(int i = 0; i < MAX_STATIC_MESHES; i++)
 	{
 		struct Static_Mesh* mesh = &scene->static_meshes[i];
@@ -568,7 +572,8 @@ void scene_ray_intersect(struct Scene* scene, struct Ray* ray)
 		struct Geometry* geometry = geom_get(mesh->model.geometry_index);
 		if(bv_intersect_sphere_ray(&geometry->bounding_sphere, &abs_pos, ray))
 		{
-			log_message("Ray intersected with %s", &mesh->base.name);
+			out_results->entities_intersected[out_results->num_entities_intersected] = &mesh->base;
+			out_results->num_entities_intersected++;
 		}
 	}
 }

src/libsymmetry/scene.h

@@ -56,7 +56,7 @@ struct Entity*       scene_base_entity_get(struct Scene* scene, int id, int type
 void scene_entity_parent_set(struct Scene* scene, struct Entity* entity, struct Entity* parent);
 void scene_entity_parent_reset(struct Scene* scene, struct Entity* entity); // Sets root entity as parent
 
-void scene_ray_intersect(struct Scene* scene, struct Ray* ray);
+void scene_ray_intersect(struct Scene* scene, struct Ray* ray, struct Raycast_Result* out_results);
 
 //
 //void           scene_init(void);