minor interface tweaks

Author: Geolm

spawn2d.c

@@ -55,7 +55,7 @@ static inline void rotate_point(float* x, float* y, float angle)
 }
 
 //-------------------------------------------------------------------------------------------------------------------
-float spawn2d_compute_area(spawn2d_shape* shape)
+float spawn2d_compute_area(const spawn2d_shape* shape)
 {
     switch(shape->type)
     {
@@ -78,7 +78,7 @@ float spawn2d_compute_area(spawn2d_shape* shape)
 }
 
 //-------------------------------------------------------------------------------------------------------------------
-bool spawn2d_point_in(spawn2d_shape* shape, float x, float y)
+bool spawn2d_point_in(const spawn2d_shape* shape, float x, float y)
 {
     switch(shape->type)
     {
@@ -120,7 +120,7 @@ bool spawn2d_point_in(spawn2d_shape* shape, float x, float y)
 }
 
 //-------------------------------------------------------------------------------------------------------------------
-void spawn2d_sample_area(spawn2d_shape* shape, uint32_t* seed, float* x, float* y)
+void spawn2d_sample_area(const spawn2d_shape* shape, uint32_t* seed, float* x, float* y)
 {
     switch(shape->type)
     {

spawn2d.h

@@ -61,11 +61,11 @@ typedef struct spawn2d_shape
 //-------------------------------------------------------------------------------------------------------------------
 typedef struct spawn2d_context
 {
-    spawn2d_shape* shapes;
+    const spawn2d_shape* shapes;
     uint32_t num_shapes;
-    spawn2d_shape* exclusions;
+    const spawn2d_shape* exclusions;
     uint32_t num_exclusions;
-    float* ctrl_points;
+    const float* ctrl_points;
     uint32_t num_ctrl_points;
     float width;
     uint32_t num_tries_max;
@@ -109,23 +109,26 @@ uint32_t spawn2d_generate_in_shapes(spawn2d_context* ctx, float* points, uint32_
 // Returns the actual number of points spawned
 uint32_t spawn2d_generate_along_spline(spawn2d_context* ctx, float* points, uint32_t num_points);
 
+
+
+
 //-------------------------------------------------------------------------------------------------------------------
 // Internal helper functions (optional, not part of public API)
 //-------------------------------------------------------------------------------------------------------------------
 
 //-------------------------------------------------------------------------------------------------------------------
 // Returns the area of the shape
-float spawn2d_compute_area(spawn2d_shape* shape);
+float spawn2d_compute_area(const spawn2d_shape* shape);
 
 //-------------------------------------------------------------------------------------------------------------------
 // Returns true if the point is inside the shape
-bool spawn2d_point_in(spawn2d_shape* shape, float x, float y);
+bool spawn2d_point_in(const spawn2d_shape* shape, float x, float y);
 
 //-------------------------------------------------------------------------------------------------------------------
 // Uniform area sampling
 //          [seed]                  Random generator seed, cannot be zero, will be changed by this function
 //          [x, y]                  Pointer to point coordinates
-void spawn2d_sample_area(spawn2d_shape* shape, uint32_t* seed, float* x, float* y);
+void spawn2d_sample_area(const spawn2d_shape* shape, uint32_t* seed, float* x, float* y);
 
 //-------------------------------------------------------------------------------------------------------------------
 // Returns a random float in [0; 1[

test/test.c

@@ -235,7 +235,7 @@ TEST test_generate_generate_in_shapes(void)
 //-------------------------------------------------------------------------------------------------------------------
 TEST test_generate_along_spline(void)
 {
-        uint32_t seed = 0xdeadbeef;
+    uint32_t seed = 0xdeadbeef;
     spawn2d_context ctx = 
     {
         .ctrl_points = (float[]){500.f, 300.f, 600.f, 500.f, 800.f, 700.f, 1100.f, 700.f, 1200.f, 500.f,