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-rw-r--r--examples/models/models_solar_system.c213
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diff --git a/examples/models/models_solar_system.c b/examples/models/models_solar_system.c
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--- a/examples/models/models_solar_system.c
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-/*******************************************************************************************
-*
-* raylib [models] example - full solar system
-*
-* This example has been created using raylib 2.5 (www.raylib.com)
-* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
-*
-* Copyright (c) 2019 Aldrin Martoq (@aldrinmartoq)
-*
-********************************************************************************************/
-
-#include "raylib.h"
-#include "rlgl.h"
-
-#define MAX_BODY_CHILDREN 10
-
-float rotationSpeed = 0.2;
-
-// A celestial body that has children bodies orbiting around
-typedef struct Body {
- const char *label; // label of the body, for ex: moon
- float radius; // object radius
- float orbitRadius; // orbit average radius
- float orbitPeriod; // time the body takes to do a full orbit loop
- float rotationPeriod; // time the body takes to do a full rotation on itself
- Texture2D texture; // texture of the body
- Model model; // model of the body
- float orbitPosition; // current orbit position
- float rotationPosition; // current rotation position
- Vector2 labelPosition; // label position in screen
- struct Body *children[MAX_BODY_CHILDREN]; // children array
- int childrenCount; // children count
-} Body;
-
-//------------------------------------------------------------------------------------
-// Module Functions Declaration
-//------------------------------------------------------------------------------------
-Body CreateBody(float radius, float orbitRadius, float orbitPeriod, const char *label, const char *texture); // Initializes a new Body with the given parameters
-void AddBodyChildren(Body *parent, Body *children); // Add a children body to the parent body
-void DrawBody(Body *body, Camera *camera); // Draw body and its children, updating labelPosition
-void DrawBodyLabel(Body *body); // Draw body label and its children labels
-
-//------------------------------------------------------------------------------------
-// Program main entry point
-//------------------------------------------------------------------------------------
-int main(void)
-{
- // Initialization
- //--------------------------------------------------------------------------------------
- const int screenWidth = 800;
- const int screenHeight = 450;
-
- InitWindow(screenWidth, screenHeight, "raylib [models] example - solar system");
-
- // Define the camera to look into our 3d world
- Camera camera = { 0 };
- camera.position = (Vector3){ 20.0f, 12.0f, 20.0f };
- camera.target = (Vector3){ 0.0f, 0.0f, 0.0f };
- camera.up = (Vector3){ 0.0f, 1.0f, 0.0f };
- camera.fovy = 45.0f;
- camera.type = CAMERA_PERSPECTIVE;
-
- SetCameraMode(camera, CAMERA_FREE);
-
- // Create Bodies
- Body sun = CreateBody(0.2, 0.0, 0, "sun", "2k_sun");
- Body moon = CreateBody(0.02, 0.200, 24, "moon", "2k_moon");
- Body mercury = CreateBody(0.05, 0.396, 90, "mercury", "2k_mercury");
- Body venus = CreateBody(0.05, 0.723, 210, "venus", "2k_venus_atmosphere");
- Body earth = CreateBody(0.05, 1.000, 365, "earth", "2k_earth_daymap");
- Body mars = CreateBody(0.05, 1.523, 690, "mars", "2k_mars");
- Body jupiter = CreateBody(0.05, 5.200, 4260, "jupiter", "2k_jupiter");
- Body saturn = CreateBody(0.05, 9.532, 10620, "saturn", "2k_saturn");
- Body uranus = CreateBody(0.05, 19.180, 30270, "uranus", "2k_uranus");
- Body neptune = CreateBody(0.05, 30.056, 59370, "neptune", "2k_neptune");
- Body pluto = CreateBody(0.05, 39.463, 89310, "pluto", "2k_eris_fictional");
-
- AddBodyChildren(&sun, &mercury);
- AddBodyChildren(&sun, &venus);
- AddBodyChildren(&sun, &earth);
- AddBodyChildren(&sun, &mars);
- // AddBodyChildren(&sun, &jupiter);
- // AddBodyChildren(&sun, &saturn);
- // AddBodyChildren(&sun, &uranus);
- // AddBodyChildren(&sun, &neptune);
- // AddBodyChildren(&sun, &pluto);
-
- AddBodyChildren(&earth, &moon);
-
- bool showHelpMenu = false;
- bool showBodyLabels = true;
-
- SetTargetFPS(60); // Set our game to run at 60 frames-per-second
- //--------------------------------------------------------------------------------------
-
- // Main game loop
- while (!WindowShouldClose()) // Detect window close button or ESC key
- {
- // Update
- //----------------------------------------------------------------------------------
- UpdateCamera(&camera);
-
- if (IsKeyPressed(KEY_H)) showHelpMenu = !showHelpMenu;
- if (IsKeyPressed(KEY_L)) showBodyLabels = !showBodyLabels;
-
- if (IsKeyPressed(KEY_LEFT)) rotationSpeed -= 0.1;
- if (IsKeyPressed(KEY_RIGHT)) rotationSpeed += 0.1;
- //----------------------------------------------------------------------------------
-
- // Draw
- //----------------------------------------------------------------------------------
- BeginDrawing();
-
- ClearBackground(BLACK);
-
- BeginMode3D(camera);
-
- // NOTE: DrawBody calls recusively body childrens
- DrawBody(&sun, &camera);
-
- EndMode3D();
-
- if (showBodyLabels) DrawBodyLabel(&sun);
-
- DrawText(FormatText("FULL SOLAR SYSTEM - SPEED: %2.2f", rotationSpeed), 120, 10, 20, LIME);
-
- if (showHelpMenu) DrawText("- [h] Toggle help\n- [l] Toggle labels\n- [left/right arrows] Increase/decrease rotation speed", 10, 40, 10, GREEN);
- else DrawText("Press [h] for help", 10, 40, 10, GREEN);
-
- DrawFPS(10, 10);
-
- EndDrawing();
- //----------------------------------------------------------------------------------
- }
-
- // De-Initialization
- //--------------------------------------------------------------------------------------
- CloseWindow(); // Close window and OpenGL context
- //--------------------------------------------------------------------------------------
-
- return 0;
-}
-
-//--------------------------------------------------------------------------------------------
-// Module Functions Definitions (local)
-//--------------------------------------------------------------------------------------------
-
-// Creates a new body
-Body CreateBody(float radius, float orbitRadius, float orbitPeriod, const char *label, const char *texture_name)
-{
- Body body = { 0 };
- Texture2D texture = LoadTexture(FormatText("resources/solar_system/%s.png", texture_name)); // GenImageCellular()
-
- GenTextureMipmaps(&texture);
-
- body.label = label;
- body.radius = radius * 10;
- body.orbitRadius = orbitRadius * 10;
- body.orbitPeriod = orbitPeriod;
- body.model = LoadModel("resources/solar_system/sphere.obj"); // GenMeshSphere()
- body.model.materials[0].maps[MAP_DIFFUSE].texture = texture;
- body.childrenCount = 0;
- body.orbitPosition = 0.0;
-
- return body;
-}
-
-void AddBodyChildren(Body *parent, Body *children)
-{
- if (parent->childrenCount >= MAX_BODY_CHILDREN) TraceLog(LOG_ERROR, "ERROR: Body has too many children!");
- else
- {
- parent->children[parent->childrenCount] = children;
- parent->childrenCount++;
- }
-}
-
-// Draw body and its children
-void DrawBody(Body *body, Camera *camera)
-{
- DrawModel(body->model, (Vector3){ 0.0f, 0.0f, 0.0f}, body->radius, WHITE);
-
- // TODO: labelPosition is not transformed to drawing position
- body->labelPosition = GetWorldToScreen((Vector3){ body->orbitRadius, body->radius, 0.0 }, *camera);
-
- for (int i = 0; i < body->childrenCount; i++)
- {
- Body *child = body->children[i];
- child->orbitPosition += rotationSpeed*360/child->orbitPeriod;
-
- rlPushMatrix();
- rlRotatef(child->orbitPosition, 0.0, 1.0, 0.0);
- rlTranslatef(child->orbitRadius, 0.0, 0.0);
- rlRotatef(-child->orbitPosition, 0.0, 1.0, 0.0);
-
- DrawBody(child, camera);
- rlPopMatrix();
-
- DrawCircle3D((Vector3){ 0.0f, 0.0f, 0.0f }, child->orbitRadius, (Vector3){ 1.0f, 0.0f, 0.0f }, 90.0f, GRAY);
- }
-}
-
-// Draw body label and its children labels
-void DrawBodyLabel(Body *body)
-{
- DrawText(body->label, body->labelPosition.x - MeasureText(body->label, 20)/2, body->labelPosition.y, 20, WHITE);
-
- for (int i = 0; i < body->childrenCount; i++)
- {
- Body *child = body->children[i];
- DrawBodyLabel(child);
- }
-}
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