diff options
Diffstat (limited to 'util.c')
| -rw-r--r-- | util.c | 130 |
1 files changed, 65 insertions, 65 deletions
@@ -635,88 +635,88 @@ i32 ceildivi32(i32 x, i32 y) { } } -v2 V2(float x, float y) { - v2 v; +vec2 Vec2(float x, float y) { + vec2 v; v.x = x; v.y = y; return v; } -v2 v2_add(v2 a, v2 b) { - return V2(a.x + b.x, a.y + b.y); +vec2 vec2_add(vec2 a, vec2 b) { + return Vec2(a.x + b.x, a.y + b.y); } -v2 v2_add_const(v2 a, float c) { - return V2(a.x + c, a.y + c); +vec2 vec2_add_const(vec2 a, float c) { + return Vec2(a.x + c, a.y + c); } -v2 v2_sub(v2 a, v2 b) { - return V2(a.x - b.x, a.y - b.y); +vec2 vec2_sub(vec2 a, vec2 b) { + return Vec2(a.x - b.x, a.y - b.y); } -v2 v2_scale(v2 v, float s) { - return V2(v.x * s, v.y * s); +vec2 vec2_scale(vec2 v, float s) { + return Vec2(v.x * s, v.y * s); } -v2 v2_mul(v2 a, v2 b) { - return V2(a.x * b.x, a.y * b.y); +vec2 vec2_mul(vec2 a, vec2 b) { + return Vec2(a.x * b.x, a.y * b.y); } -v2 v2_clamp(v2 x, v2 a, v2 b) { - return V2(clampf(x.x, a.x, b.x), clampf(x.y, a.y, b.y)); +vec2 vec2_clamp(vec2 x, vec2 a, vec2 b) { + return Vec2(clampf(x.x, a.x, b.x), clampf(x.y, a.y, b.y)); } -float v2_dot(v2 a, v2 b) { +float vec2_dot(vec2 a, vec2 b) { return a.x * b.x + a.y * b.y; } -float v2_len(v2 v) { - return sqrtf(v2_dot(v, v)); +float vec2_len(vec2 v) { + return sqrtf(vec2_dot(v, v)); } -v2 v2_lerp(float x, v2 a, v2 b) { - return V2(lerpf(x, a.x, b.x), lerpf(x, a.y, b.y)); +vec2 vec2_lerp(float x, vec2 a, vec2 b) { + return Vec2(lerpf(x, a.x, b.x), lerpf(x, a.y, b.y)); } // rotate v theta radians counterclockwise -v2 v2_rotate(v2 v, float theta) { +vec2 vec2_rotate(vec2 v, float theta) { float c = cosf(theta), s = sinf(theta); - return V2( + return Vec2( c * v.x - s * v.y, s * v.x + c * v.y ); } -v2 v2_normalize(v2 v) { - float len = v2_len(v); +vec2 vec2_normalize(vec2 v) { + float len = vec2_len(v); float mul = len == 0.0f ? 1.0f : 1.0f/len; - return v2_scale(v, mul); + return vec2_scale(v, mul); } -float v2_dist(v2 a, v2 b) { - return v2_len(v2_sub(a, b)); +float vec2_dist(vec2 a, vec2 b) { + return vec2_len(vec2_sub(a, b)); } -float v2_dist_squared(v2 a, v2 b) { - v2 diff = v2_sub(a, b); - return v2_dot(diff, diff); +float vec2_dist_squared(vec2 a, vec2 b) { + vec2 diff = vec2_sub(a, b); + return vec2_dot(diff, diff); } -void v2_print(v2 v) { +void vec2_print(vec2 v) { printf("(%f, %f)\n", v.x, v.y); } -v2 v2_rand_unit(void) { +vec2 vec2_rand_unit(void) { float theta = rand_uniform(0, TAUf); - return V2(cosf(theta), sinf(theta)); + return Vec2(cosf(theta), sinf(theta)); } -v2 v2_polar(float r, float theta) { - return V2(r * cosf(theta), r * sinf(theta)); +vec2 vec2_polar(float r, float theta) { + return Vec2(r * cosf(theta), r * sinf(theta)); } -v4 V4(float x, float y, float z, float w) { - v4 v; +vec4 Vec4(float x, float y, float z, float w) { + vec4 v; v.x = x; v.y = y; v.z = z; @@ -724,8 +724,8 @@ v4 V4(float x, float y, float z, float w) { return v; } -v2d V2D(double x, double y) { - return (v2d) { +vec2d Vec2d(double x, double y) { + return (vec2d) { .x = x, .y = y }; @@ -738,13 +738,13 @@ void rgba_u32_to_floats(u32 rgba, float floats[4]) { floats[3] = (float)((rgba >> 0) & 0xFF) / 255.f; } -v4 rgba_u32_to_v4(u32 rgba) { +vec4 rgba_u32_to_vec4(u32 rgba) { float c[4]; rgba_u32_to_floats(rgba, c); - return V4(c[0], c[1], c[2], c[3]); + return Vec4(c[0], c[1], c[2], c[3]); } -u32 rgba_v4_to_u32(v4 color) { +u32 rgba_vec4_to_u32(vec4 color) { return (u32)(color.x * 255) << 24 | (u32)(color.y * 255) << 16 | (u32)(color.z * 255) << 8 @@ -757,59 +757,59 @@ float rgba_brightness(u32 color) { return ((float)r+(float)g+(float)b) * (1.0f / 3); } -bool rect_contains_point_v2(v2 pos, v2 size, v2 point) { +bool rect_contains_point_v2(vec2 pos, vec2 size, vec2 point) { float x1 = pos.x, y1 = pos.y, x2 = pos.x + size.x, y2 = pos.y + size.y, x = point.x, y = point.y; return x >= x1 && x < x2 && y >= y1 && y < y2; } -bool centered_rect_contains_point(v2 center, v2 size, v2 point) { - return rect_contains_point_v2(v2_sub(center, v2_scale(size, 0.5f)), size, point); +bool centered_rect_contains_point(vec2 center, vec2 size, vec2 point) { + return rect_contains_point_v2(vec2_sub(center, vec2_scale(size, 0.5f)), size, point); } -Rect rect(v2 pos, v2 size) { +Rect rect(vec2 pos, vec2 size) { Rect r; r.pos = pos; r.size = size; return r; } -Rect rect_endpoints(v2 e1, v2 e2) { +Rect rect_endpoints(vec2 e1, vec2 e2) { Rect r; r.pos = e1; - r.size = v2_sub(e2, e1); + r.size = vec2_sub(e2, e1); return r; } Rect rect4(float x1, float y1, float x2, float y2) { assert(x2 >= x1); assert(y2 >= y1); - return rect(V2(x1,y1), V2(x2-x1, y2-y1)); + return rect(Vec2(x1,y1), Vec2(x2-x1, y2-y1)); } Rect rect_xywh(float x, float y, float w, float h) { assert(w >= 0); assert(h >= 0); - return rect(V2(x, y), V2(w, h)); + return rect(Vec2(x, y), Vec2(w, h)); } -Rect rect_centered(v2 center, v2 size) { +Rect rect_centered(vec2 center, vec2 size) { Rect r; - r.pos = v2_sub(center, v2_scale(size, 0.5f)); + r.pos = vec2_sub(center, vec2_scale(size, 0.5f)); r.size = size; return r; } -v2 rect_center(Rect r) { - return v2_add(r.pos, v2_scale(r.size, 0.5f)); +vec2 rect_center(Rect r) { + return vec2_add(r.pos, vec2_scale(r.size, 0.5f)); } -bool rect_contains_point(Rect r, v2 point) { +bool rect_contains_point(Rect r, vec2 point) { return rect_contains_point_v2(r.pos, r.size, point); } -Rect rect_translate(Rect r, v2 by) { - return rect(v2_add(r.pos, by), r.size); +Rect rect_translate(Rect r, vec2 by) { + return rect(vec2_add(r.pos, by), r.size); } float rect_x1(Rect r) { return r.pos.x; } @@ -841,10 +841,10 @@ float rects_intersect(Rect r1, Rect r2) { // returns whether or not there is any of the clipped rectangle left bool rect_clip_to_rect(Rect *clipped, Rect clipper) { - v2 start_pos = clipped->pos; + vec2 start_pos = clipped->pos; clipped->pos.x = maxf(clipped->pos.x, clipper.pos.x); clipped->pos.y = maxf(clipped->pos.y, clipper.pos.y); - clipped->size = v2_add(clipped->size, v2_sub(start_pos, clipped->pos)); + clipped->size = vec2_add(clipped->size, vec2_sub(start_pos, clipped->pos)); clipped->size.x = clampf(clipped->size.x, 0, clipper.pos.x + clipper.size.x - clipped->pos.x); clipped->size.y = clampf(clipped->size.y, 0, clipper.pos.y + clipper.size.y - clipped->pos.y); @@ -871,7 +871,7 @@ Rect rect_grow(Rect r, float amount) { return r; } -v4 color_rgba_to_hsva(v4 rgba) { +vec4 color_rgba_to_hsva(vec4 rgba) { float R = rgba.x, G = rgba.y, B = rgba.z, A = rgba.w; float M = maxf(R, maxf(G, B)); float m = minf(R, minf(G, B)); @@ -888,10 +888,10 @@ v4 color_rgba_to_hsva(v4 rgba) { H *= 60; float V = M; float S = V == 0 ? 0 : C / V; - return V4(H, S, V, A); + return Vec4(H, S, V, A); } -v4 color_hsva_to_rgba(v4 hsva) { +vec4 color_hsva_to_rgba(vec4 hsva) { float H = hsva.x, S = hsva.y, V = hsva.z, A = hsva.w; H /= 60; float C = S * V; @@ -914,13 +914,13 @@ v4 color_hsva_to_rgba(v4 hsva) { R += m; G += m; B += m; - return V4(R, G, B, A); + return Vec4(R, G, B, A); } u32 color_interpolate(float x, u32 color1, u32 color2) { x = x * x * (3 - 2*x); // hermite interpolation - v4 c1 = rgba_u32_to_v4(color1), c2 = rgba_u32_to_v4(color2); + vec4 c1 = rgba_u32_to_vec4(color1), c2 = rgba_u32_to_vec4(color2); // to make it interpolate more nicely, convert to hsv, interpolate in that space, then convert back c1 = color_rgba_to_hsva(c1); c2 = color_rgba_to_hsva(c2); @@ -943,9 +943,9 @@ u32 color_interpolate(float x, u32 color1, u32 color2) { } h_out = fmodf(h_out, 360); - v4 c_out = V4(h_out, s_out, v_out, a_out); + vec4 c_out = Vec4(h_out, s_out, v_out, a_out); c_out = color_hsva_to_rgba(c_out); - return rgba_v4_to_u32(c_out); + return rgba_vec4_to_u32(c_out); } |